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Challenges Hall-of-Fame

This page shows the Hall of Fame (CHoF) for all 338 challenges, which are currently in MTC3.

Initially each CHoF lists the first four solvers and the latest solver of a challenge. Via a click on the link below each CHoF you will see all users that solved this challenge. If you are logged-on and you are part of one of the shown CHoF lists, your name will be marked with a red background.

The challenge most recently published is shown first. In the paging bar you can select how many CHoFs you'd like to see.

If you click on the title of a shown challenge you can move to the challenge directly and solve it.

First four in challenge SIGABA CSP-889 — Part 3 Level III Start date: 2021-06-01 - 13:45 Rank (#2) User Achieved points (Global score) Solved at y-m-d - h:m:s George Lasry (george4096) 20000 (399565) 2021-06-01 21:12:15 S Combes (jerva) 20000 (242717) 2021-06-02 12:03:55

First four in challenge SIGABA CSP-889 — Part 2 Level II Start date: 2021-06-01 - 13:35 Rank (#2) User Achieved points (Global score) Solved at y-m-d - h:m:s S Combes (jerva) 1824 (242717) 2021-06-03 06:45:44 George Lasry (george4096) 1613 (399565) 2021-06-05 14:08:00

First four in challenge SIGABA CSP-889 — Part 1 Level II Start date: 2021-06-01 - 13:18 Rank (#2) User Achieved points (Global score) Solved at y-m-d - h:m:s S Combes (jerva) 2000 (242717) 2021-06-02 10:40:32 George Lasry (george4096) 1725 (399565) 2021-06-03 22:50:04

First four in challenge Wheatstone Cryptograph — Part 2 Level II Start date: 2021-05-21 - 15:10 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s Eugene (lim0n) 2000 (178540) 2021-05-21 19:56:41 Kurt Gebauer (Yokozuna) 2000 (282608) 2021-05-22 01:51:39 George Lasry (george4096) 1547 (399565) 2021-05-27 21:18:02

First four in challenge Wheatstone Cryptograph — Part 1 Level I Start date: 2021-04-21 - 19:17 Rank (#30) User Achieved points (Global score) Solved at y-m-d - h:m:s Em Doulgerakis (Greko) 200 (193799) 2021-04-21 23:31:35 Armin Krauss (argh) 200 (206965) 2021-04-21 23:36:27 Kurt Gebauer (Yokozuna) 200 (282608) 2021-04-22 02:19:26 Viktor (Veselovský) 200 (169444) 2021-04-22 02:20:36 #30 Somebody (Achidutzu) 102 (14883) 2021-06-09 16:01:36 Click here to see all users that have solved this challenge.

First four in challenge The SZ42 Challenge — Part 11 Level II Start date: 2021-01-30 - 15:48 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s George Lasry (george4096) 1385 (399565) 2021-02-19 14:58:08 Kurt Gebauer (Yokozuna) 1307 (282608) 2021-03-11 11:39:16 Eugene (lim0n) 1269 (178540) 2021-04-01 08:15:04

First four in challenge The SZ42 Challenge — Part 10 Level II Start date: 2021-01-30 - 15:40 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s Eugene (lim0n) 2000 (178540) 2021-01-30 17:18:00 Kurt Gebauer (Yokozuna) 2000 (282608) 2021-01-30 17:40:00 George Lasry (george4096) 1660 (399565) 2021-02-02 19:40:00

First four in challenge Find the right route — Part 3 Level I Start date: 2020-12-26 - 18:24 Rank (#16) User Achieved points (Global score) Solved at y-m-d - h:m:s Dominik M. (Sgt. Pepper) 200 (128575) 2020-12-26 19:53:41 Eugene (lim0n) 200 (178540) 2020-12-27 13:56:01 Armin Krauss (argh) 200 (206965) 2020-12-27 15:51:21 Kurt Gebauer (Yokozuna) 200 (282608) 2020-12-27 17:23:35 #16 Eric (ExAstris) 101 (54941) 2021-05-15 22:53:44 Click here to see all users that have solved this challenge.

First four in challenge Find the right route — Part 2 Level I Start date: 2020-12-19 - 16:53 Rank (#20) User Achieved points (Global score) Solved at y-m-d - h:m:s S (Zyphe) 200 (13361) 2020-12-19 20:13:14 Dominik M. (Sgt. Pepper) 200 (128575) 2020-12-19 20:13:43 Eugene (lim0n) 200 (178540) 2020-12-20 12:44:21 Em Doulgerakis (Greko) 111 (193799) 2020-12-27 19:25:00 #20 Eric (ExAstris) 101 (54941) 2021-05-13 05:33:23 Click here to see all users that have solved this challenge.

First four in challenge The SZ42 Challenge — Part 9 Level II Start date: 2020-12-19 - 16:31 Rank (#4) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2020-12-19 18:28:53 Eugene (lim0n) 2000 (178540) 2020-12-20 11:05:51 H. Lautenschlager (helmi) 1444 (56470) 2021-01-01 11:23:23 George Lasry (george4096) 1200 (399565) 2021-05-27 21:20:34

First four in challenge The SZ42 Challenge — Part 8 Level II Start date: 2020-10-31 - 16:06 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s Eugene (lim0n) 2000 (178540) 2020-10-31 20:54:38 Kurt Gebauer (Yokozuna) 2000 (282608) 2020-10-31 21:34:32 H. Lautenschlager (helmi) 2000 (56470) 2020-11-01 00:38:54 Snake (snk) 1456 (187783) 2020-11-11 21:46:53 #5 George Lasry (george4096) 1373 (399565) 2020-11-21 17:53:47

First four in challenge Find the right route — Part 1 Level I Start date: 2020-10-27 - 17:01 Rank (#44) User Achieved points (Global score) Solved at y-m-d - h:m:s Dominik M. (Sgt. Pepper) 200 (128575) 2020-10-27 17:54:44 Armin Krauss (argh) 200 (206965) 2020-10-27 19:01:03 Kurt Gebauer (Yokozuna) 200 (282608) 2020-10-27 20:13:26 Snake (snk) 200 (187783) 2020-10-27 20:36:50 #43 George Lasry (george4096) 100 (399565) 2021-06-11 15:27:29 Click here to see all users that have solved this challenge.

First four in challenge The SZ42 Challenge — Part 7 Level II Start date: 2020-10-27 - 16:54 Rank (#4) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2020-10-27 19:33:17 Eugene (lim0n) 2000 (178540) 2020-10-28 06:31:49 George Lasry (george4096) 1353 (399565) 2020-11-21 17:18:37 H. Lautenschlager (helmi) 1333 (56470) 2020-11-26 19:24:05

First four in challenge The SZ42 Challenge — Part 6 Level II Start date: 2020-10-02 - 20:09 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2020-10-02 21:03:47 Eugene (lim0n) 2000 (178540) 2020-10-03 14:07:02 Nicolas (nicosPavlov) 2000 (257791) 2020-10-03 16:38:41 H. Lautenschlager (helmi) 2000 (56470) 2020-10-03 17:00:18 #5 George Lasry (george4096) 1286 (399565) 2020-11-21 17:07:35

First four in challenge The SZ42 Challenge — Part 5 Level II Start date: 2020-09-03 - 13:25 Rank (#6) User Achieved points (Global score) Solved at y-m-d - h:m:s George Lasry (george4096) 2000 (399565) 2020-09-03 16:19:21 H. Lautenschlager (helmi) 2000 (56470) 2020-09-03 18:21:31 Eugene (lim0n) 2000 (178540) 2020-09-03 20:26:14 Nicolas (nicosPavlov) 2000 (257791) 2020-09-04 10:44:48 #6 Snake (snk) 1824 (187783) 2020-09-04 18:20:40 Click here to see all users that have solved this challenge.

First four in challenge The SZ42 Challenge — Part 4 Level II Start date: 2020-08-29 - 23:25 Rank (#7) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2020-08-30 00:14:50 Eugene (lim0n) 2000 (178540) 2020-08-30 12:42:34 H. Lautenschlager (helmi) 2000 (56470) 2020-08-30 12:53:38 George Lasry (george4096) 2000 (399565) 2020-08-30 17:19:16 #7 Snake (snk) 1576 (187783) 2020-09-04 18:19:41 Click here to see all users that have solved this challenge.

First four in challenge The SZ42 Challenge — Part 3 Level II Start date: 2020-08-15 - 21:26 Rank (#7) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2020-08-15 23:28:29 Nicolas (nicosPavlov) 2000 (257791) 2020-08-16 07:01:56 H. Lautenschlager (helmi) 2000 (56470) 2020-08-16 11:31:06 Eugene (lim0n) 2000 (178540) 2020-08-16 12:35:37 #7 George Lasry (george4096) 1576 (399565) 2020-08-21 21:02:59 Click here to see all users that have solved this challenge.

First four in challenge The SZ42 Challenge — Part 2 Level II Start date: 2020-08-05 - 15:44 Rank (#9) User Achieved points (Global score) Solved at y-m-d - h:m:s George Lasry (george4096) 2000 (399565) 2020-08-05 17:05:39 Armin Krauss (argh) 2000 (206965) 2020-08-05 20:46:23 Eugene (lim0n) 2000 (178540) 2020-08-05 21:28:35 Dominik M. (Sgt. Pepper) 2000 (128575) 2020-08-05 23:18:08 #9 Random Dude (rnd) 1178 (103645) 2021-04-03 15:40:16 Click here to see all users that have solved this challenge.

First four in challenge The SZ42 Challenge — Part 1 Level II Start date: 2020-07-22 - 23:20 Rank (#9) User Achieved points (Global score) Solved at y-m-d - h:m:s Eugene (lim0n) 2000 (178540) 2020-07-23 16:28:56 Armin Krauss (argh) 2000 (206965) 2020-07-23 19:34:09 Dominik M. (Sgt. Pepper) 1613 (128575) 2020-07-27 14:04:16 Nicolas (nicosPavlov) 1576 (257791) 2020-07-28 11:57:43 #9 Random Dude (rnd) 1175 (103645) 2021-04-03 03:07:34 Click here to see all users that have solved this challenge.

First four in challenge Lightweight Introduction to Lattices — Part 3 Level II Start date: 2020-07-16 - 12:58 Rank (#24) User Achieved points (Global score) Solved at y-m-d - h:m:s Dominik M. (Sgt. Pepper) 2000 (128575) 2020-07-16 13:39:08 S (Zyphe) 2000 (13361) 2020-07-16 14:13:42 Kurt Gebauer (Yokozuna) 2000 (282608) 2020-07-16 14:34:01 H. Lautenschlager (helmi) 2000 (56470) 2020-07-16 14:42:10 #24 madness (madness) 1162 (71592) 2021-06-13 02:07:01 Click here to see all users that have solved this challenge.

First four in challenge Lightweight Introduction to Lattices — Part 2 Level I Start date: 2020-06-23 - 23:05 Rank (#26) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 200 (282608) 2020-06-24 01:42:06 S (Zyphe) 200 (13361) 2020-06-24 09:52:41 Dominik M. (Sgt. Pepper) 200 (128575) 2020-06-24 09:55:36 Armin Krauss (argh) 200 (206965) 2020-06-24 10:00:32 #26 madness (madness) 100 (71592) 2021-06-13 01:32:23 Click here to see all users that have solved this challenge.

First four in challenge Lightweight Introduction to Lattices — Part 1 Level I Start date: 2020-05-16 - 16:03 Rank (#36) User Achieved points (Global score) Solved at y-m-d - h:m:s Dominik M. (Sgt. Pepper) 200 (128575) 2020-05-16 16:52:00 Snake (snk) 200 (187783) 2020-05-16 20:07:33 Armin Krauss (argh) 200 (206965) 2020-05-16 20:32:03 Eugene (lim0n) 200 (178540) 2020-05-17 12:10:48 #36 madness (madness) 100 (71592) 2021-06-13 01:13:50 Click here to see all users that have solved this challenge.

First four in challenge The Heavy T52 Sturgeon Challenge — Part 9 Level III Start date: 2020-04-30 - 13:03 Rank (#1) User Achieved points (Global score) Solved at y-m-d - h:m:s Michael Möller (michaelm) 15245 (253196) 2020-07-22 07:22:48

First four in challenge The Heavy T52 Sturgeon Challenge — Part 8 Level III Start date: 2020-04-24 - 16:56 No one solved the challenge right now. Be the first!

First four in challenge The Heavy T52 Sturgeon Challenge — Part 7 Level III Start date: 2020-04-23 - 12:30 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s Michael Möller (michaelm) 16645 (253196) 2020-05-10 20:53:41 Nicolas (nicosPavlov) 14822 (257791) 2020-09-15 14:25:59 S Combes (jerva) 14427 (242717) 2021-01-10 14:34:22

First four in challenge The Heavy T52 Sturgeon Challenge — Part 6 Level III Start date: 2020-04-22 - 15:06 Rank (#1) User Achieved points (Global score) Solved at y-m-d - h:m:s Michael Möller (michaelm) 14677 (253196) 2020-10-19 09:11:58

First four in challenge The Heavy T52 Sturgeon Challenge — Part 5 Level III Start date: 2020-04-21 - 12:33 Rank (#2) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 18745 (282608) 2020-04-23 23:55:05 Nicolas (nicosPavlov) 14827 (257791) 2020-09-12 14:33:35

First four in challenge The Heavy T52 Sturgeon Challenge — Part 4 Level III Start date: 2020-04-15 - 13:24 Rank (#4) User Achieved points (Global score) Solved at y-m-d - h:m:s Michael Möller (michaelm) 17893 (253196) 2020-04-20 16:19:30 Kurt Gebauer (Yokozuna) 17893 (282608) 2020-04-20 21:51:42 George Lasry (george4096) 16705 (399565) 2020-05-02 11:16:22 Nicolas (nicosPavlov) 14928 (257791) 2020-08-19 06:43:45

First four in challenge Polyhomophonic Substitution — Part 3 Level II Start date: 2020-04-06 - 20:44 Rank (#14) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 2000 (206965) 2020-04-06 22:29:12 Snake (snk) 2000 (187783) 2020-04-07 08:54:32 Thomas (Thomas4897) 2000 (36141) 2020-04-07 14:25:54 Dominik M. (Sgt. Pepper) 2000 (128575) 2020-04-07 14:59:45 #14 Eric (ExAstris) 1151 (54941) 2021-05-29 19:54:05 Click here to see all users that have solved this challenge.

First four in challenge The SIGABA Challenge — Part 6 Level III Start date: 2020-04-05 - 18:47 Rank (#1) User Achieved points (Global score) Solved at y-m-d - h:m:s S Combes (jerva) 14326 (242717) 2021-02-07 21:35:56

First four in challenge Polyhomophonic Substitution — Part 2 Level II Start date: 2020-03-28 - 15:09 Rank (#19) User Achieved points (Global score) Solved at y-m-d - h:m:s Snake (snk) 2000 (187783) 2020-03-28 17:30:14 Armin Krauss (argh) 2000 (206965) 2020-03-28 22:07:46 Kurt Gebauer (Yokozuna) 2000 (282608) 2020-03-28 22:26:59 Alain Collignon (vexilla72) 2000 (123666) 2020-03-28 23:11:11 #19 Eric (ExAstris) 1151 (54941) 2021-05-25 05:04:23 Click here to see all users that have solved this challenge.

First four in challenge The SIGABA Challenge — Part 5 Level III Start date: 2020-03-26 - 13:03 Rank (#2) User Achieved points (Global score) Solved at y-m-d - h:m:s S Combes (jerva) 20000 (242717) 2020-03-26 13:34:12 Snake (snk) 20000 (187783) 2020-03-26 21:39:40

First four in challenge Polyhomophonic Substitution — Part 1 Level I Start date: 2020-03-22 - 01:57 Rank (#31) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 200 (169444) 2020-03-22 08:47:14 Eugene (lim0n) 200 (178540) 2020-03-22 10:06:44 Snake (snk) 200 (187783) 2020-03-22 10:09:36 Dominik M. (Sgt. Pepper) 200 (128575) 2020-03-22 12:48:30 #31 George Lasry (george4096) 100 (399565) 2021-06-11 15:40:40 Click here to see all users that have solved this challenge.

First four in challenge The SIGABA Challenge — Part 4 Level III Start date: 2020-03-17 - 20:15 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s S Combes (jerva) 20000 (242717) 2020-03-17 20:56:40 Snake (snk) 18390 (187783) 2020-03-21 17:08:22 D3d4lu5 (D3d4lu5) 16438 (363488) 2020-04-08 18:24:55 Nicolas (nicosPavlov) 14472 (257791) 2020-11-17 09:28:05 #5 Em Doulgerakis (Greko) 14143 (193799) 2021-05-10 11:47:05

First four in challenge The SIGABA Challenge — Part 3 Level III Start date: 2020-03-11 - 21:10 Rank (#6) User Achieved points (Global score) Solved at y-m-d - h:m:s S Combes (jerva) 20000 (242717) 2020-03-11 22:43:44 Kurt Gebauer (Yokozuna) 18390 (282608) 2020-03-15 07:50:32 Snake (snk) 17290 (187783) 2020-03-21 19:19:23 D3d4lu5 (D3d4lu5) 16839 (363488) 2020-03-26 17:58:44 #6 Em Doulgerakis (Greko) 14164 (193799) 2021-04-18 22:38:29 Click here to see all users that have solved this challenge.

First four in challenge The SIGABA Challenge — Part 2 Level II Start date: 2020-03-05 - 19:44 Rank (#8) User Achieved points (Global score) Solved at y-m-d - h:m:s S Combes (jerva) 2000 (242717) 2020-03-05 23:35:49 Kurt Gebauer (Yokozuna) 1576 (282608) 2020-03-11 11:19:06 Dominik M. (Sgt. Pepper) 1406 (128575) 2020-03-21 19:54:11 Snake (snk) 1406 (187783) 2020-03-21 21:49:15 #8 Em Doulgerakis (Greko) 1152 (193799) 2021-04-17 16:43:37 Click here to see all users that have solved this challenge.

First four in challenge The SIGABA Challenge — Part 1 Level II Start date: 2020-02-29 - 12:29 Rank (#8) User Achieved points (Global score) Solved at y-m-d - h:m:s S Combes (jerva) 2000 (242717) 2020-02-29 17:14:45 Dominik M. (Sgt. Pepper) 1576 (128575) 2020-03-06 02:41:04 Kurt Gebauer (Yokozuna) 1523 (282608) 2020-03-08 05:38:58 Snake (snk) 1373 (187783) 2020-03-21 14:15:47 #8 Em Doulgerakis (Greko) 1153 (193799) 2021-04-06 09:39:40 Click here to see all users that have solved this challenge.

First four in challenge The LoRa Cipher: Logic Randomness — Part 1 Level II Start date: 2020-02-19 - 20:31 Rank (#19) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 2000 (169444) 2020-02-19 22:35:21 Kurt Gebauer (Yokozuna) 2000 (282608) 2020-02-20 02:32:51 Dominik M. (Sgt. Pepper) 2000 (128575) 2020-02-20 04:28:34 Eugene (lim0n) 2000 (178540) 2020-02-20 08:26:23 #19 Eric (ExAstris) 1147 (54941) 2021-05-26 03:14:48 Click here to see all users that have solved this challenge.

First four in challenge Differential Cryptanalysis — Part 2 Level II Start date: 2020-01-28 - 15:22 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s Eugene (lim0n) 2000 (178540) 2020-01-29 05:52:19 Dominik M. (Sgt. Pepper) 2000 (128575) 2020-01-29 11:13:43 Kurt Gebauer (Yokozuna) 1824 (282608) 2020-01-30 00:15:28

First four in challenge Polyphonic Substitution Cipher — Part 2 Level II Start date: 2020-01-14 - 15:20 Rank (#17) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2020-01-14 20:46:51 Snake (snk) 2000 (187783) 2020-01-14 21:48:19 Eugene (lim0n) 2000 (178540) 2020-01-15 11:18:08 George Lasry (george4096) 1824 (399565) 2020-01-16 00:47:13 #17 Eric (ExAstris) 1144 (54941) 2021-05-24 00:45:44 Click here to see all users that have solved this challenge.

First four in challenge Christmas Challenge 2019: Differential Cryptanalysis — Part 1 Level II Start date: 2019-12-22 - 21:04 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s Eugene (lim0n) 1660 (178540) 2019-12-26 16:31:43 Kurt Gebauer (Yokozuna) 1523 (282608) 2019-12-30 03:08:38 Dominik M. (Sgt. Pepper) 1456 (128575) 2020-01-03 18:30:14

First four in challenge Polyphonic Substitution Cipher — Part 1 Level II Start date: 2019-11-21 - 13:18 Rank (#20) User Achieved points (Global score) Solved at y-m-d - h:m:s sarah b (silva) 2000 (47847) 2019-11-22 10:56:16 Bart den Hartog (Bart13) 1725 (148936) 2019-11-23 15:02:52 George Lasry (george4096) 1725 (399565) 2019-11-23 17:29:00 Snake (snk) 1725 (187783) 2019-11-23 21:47:29 #20 Eric (ExAstris) 1140 (54941) 2021-05-23 23:37:14 Click here to see all users that have solved this challenge.

First four in challenge Cipher ID — Part 1 Level II Start date: 2019-11-19 - 12:00 Rank (#15) User Achieved points (Global score) Solved at y-m-d - h:m:s Bart den Hartog (Bart13) 2000 (148936) 2019-11-19 13:05:00 Viktor (Veselovský) 2000 (169444) 2019-11-19 14:41:45 D3d4lu5 (D3d4lu5) 2000 (363488) 2019-11-20 00:40:59 Armin Krauss (argh) 2000 (206965) 2019-11-20 10:40:28 #15 Random Dude (rnd) 1143 (103645) 2021-04-10 22:59:57 Click here to see all users that have solved this challenge.

First four in challenge The Heavy T52 Sturgeon Challenge — Part 3 Level III Start date: 2019-10-26 - 18:50 Rank (#2) User Achieved points (Global score) Solved at y-m-d - h:m:s S Combes (jerva) 14126 (242717) 2020-12-29 18:50:16 George Lasry (george4096) 14125 (399565) 2020-12-31 12:43:06

First four in challenge The Heavy T52 Sturgeon Challenge — Part 2 Level III Start date: 2019-10-09 - 12:36 No one solved the challenge right now. Be the first!

First four in challenge The Heavy T52 Sturgeon Challenge — Part 1 Level III Start date: 2019-09-30 - 17:57 Rank (#1) User Achieved points (Global score) Solved at y-m-d - h:m:s George Lasry (george4096) 14576 (399565) 2020-04-25 19:03:07

First four in challenge A Cloaked Substitution Cipher — Part 2 Level II Start date: 2019-08-25 - 19:26 Rank (#14) User Achieved points (Global score) Solved at y-m-d - h:m:s D3d4lu5 (D3d4lu5) 2000 (363488) 2019-08-26 00:10:35 Viktor (Veselovský) 2000 (169444) 2019-08-26 01:43:23 Snake (snk) 2000 (187783) 2019-08-26 01:58:38 Eugene (lim0n) 2000 (178540) 2019-08-26 12:30:26 #14 madness (madness) 1192 (71592) 2020-02-25 00:03:25 Click here to see all users that have solved this challenge.

First four in challenge A Cloaked Substitution Cipher — Part 1 Level II Start date: 2019-08-21 - 12:05 Rank (#15) User Achieved points (Global score) Solved at y-m-d - h:m:s Snake (snk) 2000 (187783) 2019-08-21 19:03:44 D3d4lu5 (D3d4lu5) 2000 (363488) 2019-08-21 19:03:46 Michael Möller (michaelm) 2000 (253196) 2019-08-21 23:36:41 Eugene (lim0n) 1824 (178540) 2019-08-22 12:59:50 #15 madness (madness) 1193 (71592) 2020-02-19 04:28:42 Click here to see all users that have solved this challenge.

First four in challenge The T52 Sturgeon Challenge — Part 12 Level II Start date: 2019-08-10 - 17:32 Rank (#7) User Achieved points (Global score) Solved at y-m-d - h:m:s D3d4lu5 (D3d4lu5) 1660 (363488) 2019-08-14 16:54:59 Kurt Gebauer (Yokozuna) 1523 (282608) 2019-08-18 15:58:58 Michael Möller (michaelm) 1196 (253196) 2020-01-27 22:15:31 Snake (snk) 1181 (187783) 2020-03-23 23:23:18 #7 Mike (RogueRamblers) 1132 (75961) 2021-06-21 01:26:25 Click here to see all users that have solved this challenge.

First four in challenge The T52 Sturgeon Challenge — Part 11 Level II Start date: 2019-08-10 - 17:32 Rank (#7) User Achieved points (Global score) Solved at y-m-d - h:m:s D3d4lu5 (D3d4lu5) 1660 (363488) 2019-08-14 17:05:47 Kurt Gebauer (Yokozuna) 1523 (282608) 2019-08-18 15:58:07 Michael Möller (michaelm) 1197 (253196) 2020-01-26 10:12:37 Snake (snk) 1181 (187783) 2020-03-22 20:17:10 #7 Mike (RogueRamblers) 1132 (75961) 2021-06-21 01:20:50 Click here to see all users that have solved this challenge.

First four in challenge The T52 Sturgeon Challenge — Part 10 Level II Start date: 2019-08-10 - 17:32 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 1485 (282608) 2019-08-20 03:56:48 Michael Möller (michaelm) 1198 (253196) 2020-01-23 21:42:35 Snake (snk) 1181 (187783) 2020-03-23 16:25:18 Nicolas (nicosPavlov) 1159 (257791) 2020-07-24 11:17:51 #5 S Combes (jerva) 1143 (242717) 2020-12-30 16:22:54

First four in challenge The T52 Sturgeon Challenge — Part 9 Level II Start date: 2019-08-10 - 17:31 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 1456 (282608) 2019-08-21 22:34:20 Michael Möller (michaelm) 1209 (253196) 2019-12-27 10:38:15 Snake (snk) 1181 (187783) 2020-03-20 17:08:26 Nicolas (nicosPavlov) 1160 (257791) 2020-07-23 10:42:30 #5 S Combes (jerva) 1142 (242717) 2021-01-10 15:04:47

First four in challenge The T52 Sturgeon Challenge — Part 8 Level II Start date: 2019-08-10 - 17:31 Rank (#7) User Achieved points (Global score) Solved at y-m-d - h:m:s D3d4lu5 (D3d4lu5) 1660 (363488) 2019-08-14 06:40:22 Kurt Gebauer (Yokozuna) 1523 (282608) 2019-08-18 16:55:50 Michael Möller (michaelm) 1198 (253196) 2020-01-22 21:11:55 Snake (snk) 1181 (187783) 2020-03-22 13:03:26 #7 Mike (RogueRamblers) 1132 (75961) 2021-06-21 01:44:40 Click here to see all users that have solved this challenge.

First four in challenge The T52 Sturgeon Challenge — Part 7 Level II Start date: 2019-08-10 - 17:30 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s D3d4lu5 (D3d4lu5) 1725 (363488) 2019-08-13 16:29:12 Kurt Gebauer (Yokozuna) 1613 (282608) 2019-08-15 03:30:25 Snake (snk) 1181 (187783) 2020-03-23 09:59:53 Nicolas (nicosPavlov) 1158 (257791) 2020-08-02 04:21:22 #5 Michael Möller (michaelm) 1157 (253196) 2020-08-07 20:58:39

First four in challenge The T52 Sturgeon Challenge — Part 6 Level II Start date: 2019-08-10 - 17:30 Rank (#4) User Achieved points (Global score) Solved at y-m-d - h:m:s D3d4lu5 (D3d4lu5) 1725 (363488) 2019-08-13 00:21:56 Kurt Gebauer (Yokozuna) 1613 (282608) 2019-08-15 14:53:37 Snake (snk) 1181 (187783) 2020-03-22 22:48:36 Nicolas (nicosPavlov) 1158 (257791) 2020-08-01 16:24:05

First four in challenge The T52 Sturgeon Challenge — Part 5 Level II Start date: 2019-08-10 - 17:30 Rank (#4) User Achieved points (Global score) Solved at y-m-d - h:m:s D3d4lu5 (D3d4lu5) 1824 (363488) 2019-08-12 16:35:58 Kurt Gebauer (Yokozuna) 1660 (282608) 2019-08-13 23:24:00 Snake (snk) 1181 (187783) 2020-03-20 17:07:07 Nicolas (nicosPavlov) 1158 (257791) 2020-08-05 14:47:04

First four in challenge The T52 Sturgeon Challenge — Part 4 Level II Start date: 2019-07-22 - 23:20 Rank (#9) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 1725 (282608) 2019-07-25 18:49:21 D3d4lu5 (D3d4lu5) 1385 (363488) 2019-08-11 20:05:00 Alain Collignon (vexilla72) 1256 (123666) 2019-10-01 18:59:20 Luigi Tomelli (archstanton) 1203 (127538) 2019-12-22 13:48:06 #9 S Combes (jerva) 1152 (242717) 2020-09-08 17:05:30 Click here to see all users that have solved this challenge.

First four in challenge The T52 Sturgeon Challenge — Part 3 Level II Start date: 2019-07-22 - 23:17 Rank (#11) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2019-07-23 07:38:03 D3d4lu5 (D3d4lu5) 1824 (363488) 2019-07-24 06:19:13 Alain Collignon (vexilla72) 1256 (123666) 2019-10-01 14:41:57 Random Dude (rnd) 1238 (103645) 2019-10-21 21:48:09 #11 Mike (RogueRamblers) 1131 (75961) 2021-06-17 01:02:56 Click here to see all users that have solved this challenge.

First four in challenge The T52 Sturgeon Challenge — Part 2 Level II Start date: 2019-07-22 - 23:15 Rank (#14) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2019-07-23 00:55:17 D3d4lu5 (D3d4lu5) 1824 (363488) 2019-07-24 06:18:14 Alain Collignon (vexilla72) 1256 (123666) 2019-10-01 11:47:41 Random Dude (rnd) 1238 (103645) 2019-10-20 20:34:27 #14 George (Theofanidis) 1131 (123216) 2021-06-20 14:04:45 Click here to see all users that have solved this challenge.

First four in challenge The T52 Sturgeon Challenge — Part 1 Level II Start date: 2019-07-13 - 23:11 Rank (#15) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 1725 (282608) 2019-07-16 04:47:40 D3d4lu5 (D3d4lu5) 1725 (363488) 2019-07-16 17:31:02 Bart den Hartog (Bart13) 1444 (148936) 2019-07-26 16:40:28 Alain Collignon (vexilla72) 1247 (123666) 2019-10-01 11:45:38 #15 George (Theofanidis) 1130 (123216) 2021-06-15 23:06:13 Click here to see all users that have solved this challenge.

First four in challenge The Vatican Challenge — Part 5 Level X Start date: 2019-07-07 - 20:50 No one solved the challenge right now. Be the first!

First four in challenge The Vatican Challenge — Part 4 Level X Start date: 2019-07-07 - 20:46 Rank (#1) User Achieved points (Global score) Solved at y-m-d - h:m:s Thomas (Thomas4897) 10000 (36141) 2019-08-23 00:58:00

First four in challenge The Vatican Challenge — Part 3 Level X Start date: 2019-06-25 - 17:14 No one solved the challenge right now. Be the first!

First four in challenge Handycipher — Part 10 Level II Start date: 2019-06-25 - 17:10 Rank (#1) User Achieved points (Global score) Solved at y-m-d - h:m:s D3d4lu5 (D3d4lu5) 2000 (363488) 2019-06-26 12:28:07

First four in challenge Handycipher made in love — Part 2 Level II Start date: 2019-05-21 - 16:47 Rank (#17) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 2000 (206965) 2019-05-21 19:53:02 D3d4lu5 (D3d4lu5) 2000 (363488) 2019-05-21 22:37:28 Viktor (Veselovský) 2000 (169444) 2019-05-21 23:37:36 Kurt Gebauer (Yokozuna) 2000 (282608) 2019-05-22 04:17:23 #17 madness (madness) 1128 (71592) 2021-06-17 18:13:56 Click here to see all users that have solved this challenge.

First four in challenge Homophonic Encryption — Part 4 Level II Start date: 2019-05-08 - 21:31 Rank (#28) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 2000 (169444) 2019-05-09 00:56:19 Snake (snk) 2000 (187783) 2019-05-09 14:10:58 Armin Krauss (argh) 2000 (206965) 2019-05-09 17:58:49 George Lasry (george4096) 2000 (399565) 2019-05-09 20:48:39 #28 Eric (ExAstris) 1129 (54941) 2021-05-19 03:49:58 Click here to see all users that have solved this challenge.

First four in challenge Homophonic Encryption — Part 3 Level II Start date: 2019-05-08 - 21:30 Rank (#29) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 2000 (169444) 2019-05-09 00:41:40 Alain Collignon (vexilla72) 2000 (123666) 2019-05-09 10:44:10 Dominik M. (Sgt. Pepper) 2000 (128575) 2019-05-09 13:01:44 Snake (snk) 2000 (187783) 2019-05-09 13:48:05 #29 Eric (ExAstris) 1129 (54941) 2021-05-19 02:13:17 Click here to see all users that have solved this challenge.

First four in challenge Homophonic Encryption — Part 2 Level II Start date: 2019-05-08 - 21:30 Rank (#30) User Achieved points (Global score) Solved at y-m-d - h:m:s George Lasry (george4096) 1725 (399565) 2019-05-10 22:02:30 Armin Krauss (argh) 1725 (206965) 2019-05-10 22:04:09 Snake (snk) 1725 (187783) 2019-05-10 22:29:03 Alain Collignon (vexilla72) 1725 (123666) 2019-05-10 23:47:11 #30 Eric (ExAstris) 1129 (54941) 2021-05-19 02:48:11 Click here to see all users that have solved this challenge.

First four in challenge Homophonic Encryption — Part 1 Level II Start date: 2019-05-04 - 15:22 Rank (#35) User Achieved points (Global score) Solved at y-m-d - h:m:s Snake (snk) 2000 (187783) 2019-05-04 20:15:46 Armin Krauss (argh) 2000 (206965) 2019-05-04 23:35:06 D3d4lu5 (D3d4lu5) 2000 (363488) 2019-05-05 04:23:38 Kurt Gebauer (Yokozuna) 2000 (282608) 2019-05-05 13:33:42 #35 Eric (ExAstris) 1128 (54941) 2021-05-19 02:37:40 Click here to see all users that have solved this challenge.

First four in challenge Handycipher made in love — Part 1 Level II Start date: 2019-02-16 - 12:29 Rank (#22) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 2000 (206965) 2019-02-16 14:52:29 D3d4lu5 (D3d4lu5) 2000 (363488) 2019-02-16 16:30:13 Michael Möller (michaelm) 2000 (253196) 2019-02-16 18:53:09 George Lasry (george4096) 2000 (399565) 2019-02-16 21:36:16 #22 madness (madness) 1124 (71592) 2021-06-17 04:01:37 Click here to see all users that have solved this challenge.

First four in challenge Monoalphabetic Substitution with Nostradamus Flavor Level II Start date: 2019-02-16 - 12:28 Rank (#28) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 2000 (206965) 2019-02-16 13:26:09 D3d4lu5 (D3d4lu5) 2000 (363488) 2019-02-16 15:57:07 Dominik M. (Sgt. Pepper) 2000 (128575) 2019-02-16 19:22:15 George Lasry (george4096) 2000 (399565) 2019-02-16 21:43:46 #28 Eric (ExAstris) 1126 (54941) 2021-04-21 22:27:39 Click here to see all users that have solved this challenge.

First four in challenge Cryptanalysis Hacking Puzzles — Part 2 Level I Start date: 2019-01-09 - 14:10 Rank (#141) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2019-01-09 15:41:27 Dominik M. (Sgt. Pepper) 200 (128575) 2019-01-09 16:25:16 sarah b (silva) 200 (47847) 2019-01-09 20:37:52 Alain Collignon (vexilla72) 200 (123666) 2019-01-10 08:00:54 #139 Luigi Tomelli (archstanton) 100 (127538) 2021-05-19 19:50:42 Click here to see all users that have solved this challenge.

First four in challenge "The Road" — Part 3 Level II Start date: 2018-12-08 - 17:45 No one solved the challenge right now. Be the first!

First four in challenge "The Road" — Part 2 Level II Start date: 2018-12-08 - 17:42 No one solved the challenge right now. Be the first!

First four in challenge "The Road" — Part 1 Level II Start date: 2018-12-08 - 17:27 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 1824 (206965) 2018-12-10 15:47:26 Viktor (Veselovský) 1613 (169444) 2018-12-13 15:15:16 D3d4lu5 (D3d4lu5) 1315 (363488) 2019-01-14 08:37:31 Eugene (lim0n) 1163 (178540) 2019-10-30 12:18:39 #5 Snake (snk) 1160 (187783) 2019-11-14 21:04:35

First four in challenge Catherine of Aragon's Letter to King Ferdinand, her Father (1509) Level X Start date: 2018-11-28 - 15:42 Rank (#2) User Achieved points (Global score) Solved at y-m-d - h:m:s Thomas (Thomas4897) 2000 (36141) 2018-12-11 15:50:54 Viktor (Veselovský) 2000 (169444) 2018-12-11 15:52:01

First four in challenge Cryptanalysis Hacking Puzzles — Part 1 Level I Start date: 2018-10-26 - 20:33 Rank (#26) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 200 (169444) 2018-10-26 22:47:28 D3d4lu5 (D3d4lu5) 200 (363488) 2018-10-27 08:18:21 Dominik M. (Sgt. Pepper) 200 (128575) 2018-10-27 14:30:52 Random Dude (rnd) 150 (103645) 2018-10-28 01:43:34 #26 Luigi Tomelli (archstanton) 100 (127538) 2021-05-18 10:12:16 Click here to see all users that have solved this challenge.

First four in challenge Breaking a Filter Generator Level II Start date: 2018-09-25 - 14:22 Rank (#19) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 1824 (282608) 2018-09-26 21:06:06 Viktor (Veselovský) 1725 (169444) 2018-09-27 22:20:26 roehm (roehm) 1725 (5399) 2018-09-28 00:56:29 D3d4lu5 (D3d4lu5) 1725 (363488) 2018-09-28 02:01:18 #19 Luigi Tomelli (archstanton) 1119 (127538) 2021-06-04 19:29:37 Click here to see all users that have solved this challenge.

First four in challenge Autokey Cipher Level I Start date: 2018-09-25 - 14:21 Rank (#134) User Achieved points (Global score) Solved at y-m-d - h:m:s Snake (snk) 200 (187783) 2018-09-25 16:08:04 Viktor (Veselovský) 200 (169444) 2018-09-25 22:11:53 Michael Möller (michaelm) 200 (253196) 2018-09-25 22:32:51 Kurt Gebauer (Yokozuna) 200 (282608) 2018-09-26 02:53:02 #134 Claus Appelt (Konubixe) 100 (8066) 2021-05-04 20:58:42 Click here to see all users that have solved this challenge.

First four in challenge Modular Sequences Level I Start date: 2018-09-25 - 14:19 Rank (#57) User Achieved points (Global score) Solved at y-m-d - h:m:s Em Doulgerakis (Greko) 200 (193799) 2018-09-25 15:30:49 Snake (snk) 200 (187783) 2018-09-25 17:05:31 Viktor (Veselovský) 200 (169444) 2018-09-25 21:39:20 Kurt Gebauer (Yokozuna) 200 (282608) 2018-09-26 02:12:29 #56 m (umsyt) 100 (9300) 2021-03-11 20:02:55 Click here to see all users that have solved this challenge.

First four in challenge Trendy Messenger Level II Start date: 2018-06-12 - 13:26 Rank (#31) User Achieved points (Global score) Solved at y-m-d - h:m:s D3d4lu5 (D3d4lu5) 2000 (363488) 2018-06-13 01:04:34 Kurt Gebauer (Yokozuna) 2000 (282608) 2018-06-13 11:25:42 Dominik M. (Sgt. Pepper) 1824 (128575) 2018-06-13 14:33:57 Viktor (Veselovský) 1725 (169444) 2018-06-14 19:05:40 #31 Marco Cinelli (Snap) 1129 (37769) 2020-06-05 09:37:44 Click here to see all users that have solved this challenge.

First four in challenge Fastest in the West Level II Start date: 2018-06-12 - 13:24 Rank (#30) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2018-06-13 03:24:07 D3d4lu5 (D3d4lu5) 2000 (363488) 2018-06-13 07:45:23 Alain Collignon (vexilla72) 2000 (123666) 2018-06-13 10:36:19 Dominik M. (Sgt. Pepper) 1824 (128575) 2018-06-14 13:22:36 #30 DS (DS8279) 1121 (29732) 2020-12-20 11:20:19 Click here to see all users that have solved this challenge.

First four in challenge Summer Job Level II Start date: 2018-06-12 - 13:16 Rank (#45) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2018-06-12 21:37:26 E.T (Ertheb) 2000 (81809) 2018-06-12 21:48:19 Viktor (Veselovský) 2000 (169444) 2018-06-12 23:34:15 D3d4lu5 (D3d4lu5) 2000 (363488) 2018-06-13 06:19:26 #45 Claude Vaillancourt (Cl3v3r) 1116 (44129) 2021-05-23 19:22:30 Click here to see all users that have solved this challenge.

First four in challenge Weakened ElsieFour — Part 2 Level II Start date: 2018-04-28 - 16:36 No one solved the challenge right now. Be the first!

First four in challenge Weakened ElsieFour — Part 1 Level II Start date: 2018-04-28 - 16:29 Rank (#4) User Achieved points (Global score) Solved at y-m-d - h:m:s George (Theofanidis) 1200 (123216) 2018-10-06 20:53:41 Michael Möller (michaelm) 1176 (253196) 2019-01-02 09:55:59 D3d4lu5 (D3d4lu5) 1138 (363488) 2019-11-28 19:27:00 Eugene (lim0n) 1115 (178540) 2021-05-10 19:34:04

First four in challenge Number Sequence — Part 10 Level I Start date: 2018-04-18 - 16:56 Rank (#100) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2018-04-18 18:25:13 Kurt Gebauer (Yokozuna) 200 (282608) 2018-04-18 20:22:55 H. Lautenschlager (helmi) 200 (56470) 2018-04-18 20:29:36 Viktor (Veselovský) 200 (169444) 2018-04-18 20:31:10 #100 George Lasry (george4096) 100 (399565) 2021-06-11 21:26:45 Click here to see all users that have solved this challenge.

First four in challenge The Vatican Challenge — Part 2 Level X Start date: 2018-02-14 - 20:43 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s Norbert Biermann (Norbert) 2000 (47790) 2018-03-20 15:45:57 Thomas (Thomas4897) 1000 (36141) 2018-04-16 16:42:50 Tomokiyo (cryptiana) 1000 (1000) 2018-06-01 14:59:09

First four in challenge The Vatican Challenge — Part 1 Level X Start date: 2018-02-14 - 20:36 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s Thomas (Thomas4897) 2000 (36141) 2018-03-12 15:00:33 Norbert Biermann (Norbert) 1000 (47790) 2018-03-20 14:59:36 Tomokiyo (cryptiana) 0 (1000) 2018-08-13 15:02:13

First four in challenge The Einstein Enigma Level II Start date: 2018-02-07 - 23:40 Rank (#55) User Achieved points (Global score) Solved at y-m-d - h:m:s H. Lautenschlager (helmi) 2000 (56470) 2018-02-08 18:35:02 Kurt Gebauer (Yokozuna) 2000 (282608) 2018-02-08 20:23:50 Snake (snk) 2000 (187783) 2018-02-08 21:10:28 Alain Collignon (vexilla72) 1824 (123666) 2018-02-09 07:29:58 #55 Silvia Kortmann (mikinsget) 1113 (20341) 2021-04-18 14:58:41 Click here to see all users that have solved this challenge.

First four in challenge Advent Challenge — Part 3 Level II Start date: 2017-12-22 - 18:19 Rank (#38) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 2000 (169444) 2017-12-22 19:30:50 Dominik M. (Sgt. Pepper) 2000 (128575) 2017-12-22 19:31:05 Alain Collignon (vexilla72) 2000 (123666) 2017-12-22 19:34:58 Kurt Gebauer (Yokozuna) 2000 (282608) 2017-12-22 19:43:48 #38 Eric (ExAstris) 1111 (54941) 2021-05-18 18:53:31 Click here to see all users that have solved this challenge.

First four in challenge Advent Challenge — Part 4 Level II Start date: 2017-12-21 - 17:06 Rank (#36) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 2000 (169444) 2017-12-21 18:47:44 Michael Möller (michaelm) 2000 (253196) 2017-12-21 19:14:17 Kurt Gebauer (Yokozuna) 2000 (282608) 2017-12-21 19:56:48 S Combes (jerva) 2000 (242717) 2017-12-21 22:27:59 #36 madness (madness) 1113 (71592) 2021-02-26 03:22:17 Click here to see all users that have solved this challenge.

First four in challenge AES ECB Wrong Encoding Level II Start date: 2017-12-16 - 19:21 Rank (#20) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 2000 (169444) 2017-12-17 18:10:22 Snake (snk) 1824 (187783) 2017-12-17 21:48:12 Armin Krauss (argh) 1824 (206965) 2017-12-17 23:34:09 Kurt Gebauer (Yokozuna) 1824 (282608) 2017-12-18 13:16:26 #20 Eric (ExAstris) 1111 (54941) 2021-05-21 01:31:06 Click here to see all users that have solved this challenge.

First four in challenge Advent-Challenge — Part 2 Level II Start date: 2017-12-16 - 19:20 Rank (#45) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2017-12-17 00:20:59 Dominik M. (Sgt. Pepper) 2000 (128575) 2017-12-17 06:30:45 Alain Collignon (vexilla72) 2000 (123666) 2017-12-17 11:20:39 Viktor (Veselovský) 2000 (169444) 2017-12-17 12:30:11 #45 Marco Cinelli (Snap) 1111 (37769) 2021-05-04 10:03:45 Click here to see all users that have solved this challenge.

First four in challenge Advent-Challenge — Part 1 Level I Start date: 2017-12-08 - 19:24 Rank (#392) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 200 (282608) 2017-12-08 20:26:00 Michael Möller (michaelm) 200 (253196) 2017-12-08 20:27:32 HolgerK (HolgerK) 200 (25776) 2017-12-08 20:51:53 H. Lautenschlager (helmi) 200 (56470) 2017-12-08 21:06:49 #390 JCR (Jericho) 100 (8470) 2021-05-03 17:52:01 Click here to see all users that have solved this challenge.

First four in challenge Number Sequence — Part 9 Level I Start date: 2017-11-16 - 17:43 Rank (#96) User Achieved points (Global score) Solved at y-m-d - h:m:s nimroth (nimroth cynthor) 200 (6021) 2017-11-16 19:39:34 H. Lautenschlager (helmi) 200 (56470) 2017-11-16 22:27:42 Kurt Gebauer (Yokozuna) 200 (282608) 2017-11-16 23:03:55 Armin Krauss (argh) 200 (206965) 2017-11-17 00:08:50 #95 madness (madness) 100 (71592) 2021-06-20 02:48:34 Click here to see all users that have solved this challenge.

First four in challenge Hilly — Part 2 Level II Start date: 2017-10-17 - 17:12 Rank (#1) User Achieved points (Global score) Solved at y-m-d - h:m:s Em Doulgerakis (Greko) 1156 (193799) 2018-10-29 21:19:05

First four in challenge Weakened ElsieFour — Part 3 Level II Start date: 2017-10-03 - 06:39 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s Nicolas (nicosPavlov) 1226 (257791) 2018-01-18 01:49:20 Michael Möller (michaelm) 1186 (253196) 2018-04-24 07:26:39 D3d4lu5 (D3d4lu5) 1113 (363488) 2020-12-29 19:34:27

First four in challenge ElsieFour — Part 1 Level III Start date: 2017-10-03 - 06:37 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s S Combes (jerva) 14436 (242717) 2018-06-18 22:14:19 Michael Möller (michaelm) 14182 (253196) 2018-10-29 13:09:48 D3d4lu5 (D3d4lu5) 13586 (363488) 2021-01-04 19:14:20

First four in challenge Kaskade-S/T — Part 6 (RansomKaskade Part 1) Level II Start date: 2017-07-02 - 12:32 Rank (#6) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 1444 (206965) 2017-07-14 14:00:35 Michael Möller (michaelm) 1344 (253196) 2017-07-29 12:39:20 Kurt Gebauer (Yokozuna) 1186 (282608) 2018-01-22 18:16:47 George Lasry (george4096) 1156 (399565) 2018-07-08 22:27:49 #6 D3d4lu5 (D3d4lu5) 1131 (363488) 2019-05-19 12:39:50 Click here to see all users that have solved this challenge.

First four in challenge Holographic Encryption — Part 2 Level II Start date: 2017-04-07 - 22:29 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 1613 (169444) 2017-04-12 18:46:17 Armin Krauss (argh) 1444 (206965) 2017-04-20 17:54:38 Eugene (lim0n) 1120 (178540) 2019-11-16 13:49:41

First four in challenge Holographic Encryption — Part 1 Level II Start date: 2017-04-07 - 22:25 Rank (#6) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 1660 (169444) 2017-04-11 09:41:56 Armin Krauss (argh) 1456 (206965) 2017-04-19 17:59:59 Bart den Hartog (Bart13) 1198 (148936) 2017-09-20 03:18:52 D3d4lu5 (D3d4lu5) 1124 (363488) 2019-07-21 16:07:09 #6 Kurt Gebauer (Yokozuna) 1117 (282608) 2020-02-03 08:16:13 Click here to see all users that have solved this challenge.

First four in challenge Hilly — Part 1 Level II Start date: 2017-01-25 - 04:09 Rank (#9) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 1385 (169444) 2017-02-13 19:33:24 Dominik M. (Sgt. Pepper) 1142 (128575) 2018-07-03 02:17:21 Alain (Integral) 1142 (207924) 2018-07-03 19:30:44 Alain Collignon (vexilla72) 1141 (123666) 2018-07-14 09:53:00 #9 Kurt Gebauer (Yokozuna) 1104 (282608) 2021-06-05 12:12:23 Click here to see all users that have solved this challenge.

First four in challenge Handycipher — Part 9 Level III Start date: 2017-01-21 - 22:17 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s George Lasry (george4096) 14906 (399565) 2017-05-31 11:00:46 Michael Möller (michaelm) 14129 (253196) 2018-03-26 21:50:27 D3d4lu5 (D3d4lu5) 13830 (363488) 2019-01-26 17:57:14

First four in challenge Handycipher — Part 8 Level III Start date: 2017-01-21 - 22:14 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s George Lasry (george4096) 14917 (399565) 2017-05-28 23:32:02 Michael Möller (michaelm) 14117 (253196) 2018-04-04 18:16:20 D3d4lu5 (D3d4lu5) 13830 (363488) 2019-01-26 09:32:09

First four in challenge Handycipher — Part 7 Level III Start date: 2017-01-21 - 22:11 Rank (#2) User Achieved points (Global score) Solved at y-m-d - h:m:s George Lasry (george4096) 14917 (399565) 2017-05-28 23:43:15 D3d4lu5 (D3d4lu5) 13830 (363488) 2019-01-26 07:53:23

First four in challenge ASAC — A Strong(er) ADFGVX Cipher — Part 5 Level II Start date: 2016-07-09 - 19:15 No one solved the challenge right now. Be the first!

First four in challenge ASAC — A Strong(er) ADFGVX Cipher — Part 4 Level II Start date: 2016-07-09 - 19:13 No one solved the challenge right now. Be the first!

First four in challenge ASAC — A Strong(er) ADFGVX Cipher — Part 3 Level II Start date: 2016-07-09 - 19:10 No one solved the challenge right now. Be the first!

First four in challenge ASAC — A Strong(er) ADFGVX Cipher — Part 2 Level II Start date: 2016-07-09 - 19:08 Rank (#1) User Achieved points (Global score) Solved at y-m-d - h:m:s George Lasry (george4096) 1155 (399565) 2017-08-01 00:01:51

First four in challenge ASAC — A Strong(er) ADFGVX Cipher — Part 1 Level II Start date: 2016-07-09 - 19:05 Rank (#16) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 2000 (206965) 2016-07-09 20:51:02 zahir mohsen moradi (ariobarzan) 2000 (99757) 2016-07-09 23:39:20 Snake (snk) 2000 (187783) 2016-07-10 18:57:24 Robert (rm) 1613 (56475) 2016-07-13 20:20:15 #16 Dominik M. (Sgt. Pepper) 1101 (128575) 2021-05-08 16:25:36 Click here to see all users that have solved this challenge.

First four in challenge Weakened Handycipher — Part 6 Level II Start date: 2016-06-28 - 20:12 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s Alain (Integral) 1307 (207924) 2016-08-07 12:09:26 Michael Möller (michaelm) 1292 (253196) 2016-08-14 17:29:02 George Lasry (george4096) 1161 (399565) 2017-05-29 01:02:28 Nicolas (nicosPavlov) 1136 (257791) 2018-02-18 11:22:27 #5 D3d4lu5 (D3d4lu5) 1123 (363488) 2018-11-01 00:50:59

First four in challenge Weakened Handycipher — Part 5 Level II Start date: 2016-06-28 - 20:10 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s Michael Möller (michaelm) 1337 (253196) 2016-07-28 16:36:55 Alain (Integral) 1310 (207924) 2016-08-06 16:25:46 George Lasry (george4096) 1161 (399565) 2017-05-29 21:15:02 Nicolas (nicosPavlov) 1136 (257791) 2018-02-18 11:18:20 #5 D3d4lu5 (D3d4lu5) 1123 (363488) 2018-10-31 22:03:45

First four in challenge Weakened Handycipher — Part 4 Level II Start date: 2016-06-28 - 20:08 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s Michael Möller (michaelm) 1414 (253196) 2016-07-13 21:09:45 Alain (Integral) 1310 (207924) 2016-08-06 14:10:50 George Lasry (george4096) 1161 (399565) 2017-05-30 16:00:56 Nicolas (nicosPavlov) 1137 (257791) 2018-02-12 14:08:00 #5 D3d4lu5 (D3d4lu5) 1124 (363488) 2018-10-31 06:18:10

First four in challenge Extended Handycipher — Part 6 Level III Start date: 2016-06-28 - 20:06 Rank (#2) User Achieved points (Global score) Solved at y-m-d - h:m:s George Lasry (george4096) 14274 (399565) 2017-05-30 15:01:05 D3d4lu5 (D3d4lu5) 13701 (363488) 2019-01-28 18:39:51

First four in challenge Extended Handycipher — Part 5 Level III Start date: 2016-06-28 - 20:04 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s Michael Möller (michaelm) 14510 (253196) 2017-02-13 22:37:52 George Lasry (george4096) 14276 (399565) 2017-05-29 00:37:15 D3d4lu5 (D3d4lu5) 13704 (363488) 2019-01-22 06:27:03

First four in challenge Extended Handycipher — Part 4 Level III Start date: 2016-06-28 - 20:02 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s Michael Möller (michaelm) 14475 (253196) 2017-02-27 14:57:16 George Lasry (george4096) 14276 (399565) 2017-05-29 00:30:45 D3d4lu5 (D3d4lu5) 13725 (363488) 2018-12-14 06:34:24

First four in challenge Handycipher — Part 6 Level III Start date: 2016-06-28 - 19:59 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s Alain (Integral) 15666 (207924) 2016-08-16 23:27:18 Michael Möller (michaelm) 15124 (253196) 2016-10-03 10:57:55 George Lasry (george4096) 14276 (399565) 2017-05-28 23:48:45 Nicolas (nicosPavlov) 13925 (257791) 2018-03-06 14:54:25 #5 D3d4lu5 (D3d4lu5) 13748 (363488) 2018-11-04 23:47:38

First four in challenge Handycipher — Part 5 Level III Start date: 2016-06-28 - 19:55 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s Alain (Integral) 15684 (207924) 2016-08-16 15:08:03 Michael Möller (michaelm) 15043 (253196) 2016-10-14 13:50:17 George Lasry (george4096) 14276 (399565) 2017-05-28 23:56:58 Nicolas (nicosPavlov) 13926 (257791) 2018-03-05 11:40:29 #5 D3d4lu5 (D3d4lu5) 13749 (363488) 2018-11-04 13:40:58

First four in challenge Handycipher — Part 4 Level III Start date: 2016-06-28 - 19:50 Rank (#4) User Achieved points (Global score) Solved at y-m-d - h:m:s Alain (Integral) 15684 (207924) 2016-08-15 21:12:28 George Lasry (george4096) 14276 (399565) 2017-05-29 00:06:01 Nicolas (nicosPavlov) 13928 (257791) 2018-03-03 03:12:00 D3d4lu5 (D3d4lu5) 13748 (363488) 2018-11-05 06:48:23

First four in challenge New Year's Greetings — Part 5 Level II Start date: 2016-03-21 - 10:05 Rank (#15) User Achieved points (Global score) Solved at y-m-d - h:m:s Szabó Zoltán (szabo.z87) 2000 (55604) 2016-03-21 19:18:08 Rainer Zufall (kiekuk) 1725 (56786) 2016-03-23 15:46:41 Viktor (Veselovský) 1576 (169444) 2016-03-26 13:20:45 Alain (Integral) 1502 (207924) 2016-03-29 14:51:54 #15 Derek Hatton (alfred_noble) 1107 (33998) 2020-02-18 00:58:18 Click here to see all users that have solved this challenge.

First four in challenge New Year's Greetings — Part 4 Level I Start date: 2016-03-21 - 10:02 Rank (#39) User Achieved points (Global score) Solved at y-m-d - h:m:s Szabó Zoltán (szabo.z87) 200 (55604) 2016-03-21 14:14:22 Robert (rm) 200 (56475) 2016-03-21 15:49:31 Rainer Zufall (kiekuk) 200 (56786) 2016-03-21 23:47:44 Armin Krauss (argh) 200 (206965) 2016-03-22 01:17:45 #39 Michael Ammon (Ammonym) 100 (10120) 2021-04-21 00:31:23 Click here to see all users that have solved this challenge.

First four in challenge New Year's Greetings — Part 3 Level I Start date: 2016-03-21 - 09:59 Rank (#41) User Achieved points (Global score) Solved at y-m-d - h:m:s Szabó Zoltán (szabo.z87) 200 (55604) 2016-03-21 13:56:26 Robert (rm) 200 (56475) 2016-03-21 15:33:43 Rainer Zufall (kiekuk) 200 (56786) 2016-03-21 23:19:10 Armin Krauss (argh) 200 (206965) 2016-03-22 01:17:16 #41 Michael Ammon (Ammonym) 100 (10120) 2021-04-20 23:36:21 Click here to see all users that have solved this challenge.

First four in challenge New Year's Greetings — Part 2 Level I Start date: 2016-03-21 - 09:55 Rank (#43) User Achieved points (Global score) Solved at y-m-d - h:m:s Szabó Zoltán (szabo.z87) 200 (55604) 2016-03-21 13:20:27 Robert (rm) 200 (56475) 2016-03-21 15:27:26 Rainer Zufall (kiekuk) 200 (56786) 2016-03-21 21:24:25 Michael Möller (michaelm) 200 (253196) 2016-03-21 22:09:24 #43 Michael Ammon (Ammonym) 100 (10120) 2021-04-20 22:23:26 Click here to see all users that have solved this challenge.

First four in challenge New Year's Greetings — Part 1 Level I Start date: 2016-03-21 - 09:48 Rank (#46) User Achieved points (Global score) Solved at y-m-d - h:m:s Szabó Zoltán (szabo.z87) 200 (55604) 2016-03-21 13:09:26 Robert (rm) 200 (56475) 2016-03-21 15:23:36 Rainer Zufall (kiekuk) 200 (56786) 2016-03-21 20:58:42 Michael Möller (michaelm) 200 (253196) 2016-03-21 21:28:11 #46 Michael Ammon (Ammonym) 100 (10120) 2021-04-20 22:03:32 Click here to see all users that have solved this challenge.

First four in challenge Image Noise Level I Start date: 2015-11-20 - 20:26 Rank (#119) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2015-11-20 21:33:05 Viktor (Veselovský) 200 (169444) 2015-11-20 22:18:11 Robert (rm) 200 (56475) 2015-11-21 00:20:24 Kurt Gebauer (Yokozuna) 200 (282608) 2015-11-21 00:31:36 #119 Claus Appelt (Konubixe) 100 (8066) 2021-05-15 13:45:15 Click here to see all users that have solved this challenge.

First four in challenge News from Castle Mansfeld Level I Start date: 2015-11-13 - 12:43 Rank (#51) User Achieved points (Global score) Solved at y-m-d - h:m:s Snake (snk) 200 (187783) 2015-11-13 15:30:00 Kurt Gebauer (Yokozuna) 200 (282608) 2015-11-13 19:34:00 Armin Krauss (argh) 200 (206965) 2015-11-13 22:41:00 Viktor (Veselovský) 200 (169444) 2015-11-13 22:52:00 #51 Claus Appelt (Konubixe) 100 (8066) 2021-05-07 23:23:21 Click here to see all users that have solved this challenge.

First four in challenge Weakened Granit — Part 3 Level II Start date: 2015-09-24 - 07:37 No one solved the challenge right now. Be the first!

First four in challenge Weakened Granit — Part 2 Level II Start date: 2015-09-24 - 07:34 No one solved the challenge right now. Be the first!

First four in challenge Weakened Granit — Part 1 Level I Start date: 2015-09-24 - 07:30 Rank (#43) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2015-09-24 12:32:52 Snake (snk) 200 (187783) 2015-09-24 13:14:23 Kurt Gebauer (Yokozuna) 200 (282608) 2015-09-24 16:01:22 Robert (rm) 200 (56475) 2015-09-24 19:44:02 #43 Eric (ExAstris) 100 (54941) 2021-05-10 00:28:29 Click here to see all users that have solved this challenge.

First four in challenge Number Sequence — Part 8 Level I Start date: 2015-09-14 - 08:54 Rank (#344) User Achieved points (Global score) Solved at y-m-d - h:m:s Robert (rm) 200 (56475) 2015-09-14 10:39:04 Bernhard Gruber (bgr) 200 (22889) 2015-09-14 12:09:50 Kurt Gebauer (Yokozuna) 200 (282608) 2015-09-14 13:23:49 H. Lautenschlager (helmi) 200 (56470) 2015-09-14 13:31:53 #343 George Lasry (george4096) 100 (399565) 2021-06-11 20:44:37 Click here to see all users that have solved this challenge.

First four in challenge Spirale — Part 4 Level III Start date: 2015-08-23 - 19:11 No one solved the challenge right now. Be the first!

First four in challenge Spirale — Part 3 Level II Start date: 2015-08-23 - 19:08 Rank (#4) User Achieved points (Global score) Solved at y-m-d - h:m:s S Combes (jerva) 1378 (242717) 2015-09-13 15:43:29 J-L Morel (Rossignol) 1143 (42130) 2017-01-19 15:27:30 George Lasry (george4096) 1129 (399565) 2017-08-21 21:46:21 D3d4lu5 (D3d4lu5) 1098 (363488) 2021-01-19 19:45:17

First four in challenge Spirale — Part 2 Level II Start date: 2015-08-23 - 19:05 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s S Combes (jerva) 1378 (242717) 2015-09-12 21:15:06 J-L Morel (Rossignol) 1143 (42130) 2017-01-19 15:23:12 George Lasry (george4096) 1129 (399565) 2017-08-21 21:06:46 Kurt Gebauer (Yokozuna) 1103 (282608) 2020-01-28 12:25:55 #5 D3d4lu5 (D3d4lu5) 1098 (363488) 2021-01-19 19:44:01

First four in challenge Spirale — Part 1 Level II Start date: 2015-08-23 - 19:04 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s S Combes (jerva) 1378 (242717) 2015-09-12 21:12:42 J-L Morel (Rossignol) 1143 (42130) 2017-01-19 15:14:20 George Lasry (george4096) 1129 (399565) 2017-08-21 20:56:27 Kurt Gebauer (Yokozuna) 1103 (282608) 2020-01-28 12:24:14 #5 D3d4lu5 (D3d4lu5) 1098 (363488) 2021-01-19 19:42:42

First four in challenge Flawed Usage of a OTP Cipher by the BND Level II Start date: 2015-08-23 - 19:00 Rank (#14) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 1725 (206965) 2015-08-26 17:13:36 Kurt Gebauer (Yokozuna) 1576 (282608) 2015-08-28 22:20:36 Alain (Integral) 1456 (207924) 2015-09-04 16:37:12 Bart den Hartog (Bart13) 1398 (148936) 2015-09-10 14:30:56 #14 Polaris (Polaris) 1100 (32963) 2020-08-16 17:37:58 Click here to see all users that have solved this challenge.

First four in challenge Double-Column Transposition/Granit — Part 3 Level II Start date: 2015-07-01 - 18:23 No one solved the challenge right now. Be the first!

First four in challenge Double-Column Transposition/Granit — Part 2 Level II Start date: 2015-07-01 - 18:21 No one solved the challenge right now. Be the first!

First four in challenge Double-Column Transposition/Granit — Part 1 Level II Start date: 2015-07-01 - 18:20 No one solved the challenge right now. Be the first!

First four in challenge Weakened Handycipher — Part 3 Level II Start date: 2015-05-13 - 11:49 Rank (#14) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2015-05-13 21:52:11 Armin Krauss (argh) 1576 (206965) 2015-05-18 14:55:24 Julia Bernotat (El Greco ) 1485 (81129) 2015-05-23 00:58:36 S Combes (jerva) 1444 (242717) 2015-05-26 08:31:39 #14 Random Dude (rnd) 1106 (103645) 2019-06-15 03:11:22 Click here to see all users that have solved this challenge.

First four in challenge Weakened Handycipher — Part 2 Level II Start date: 2015-05-13 - 11:48 Rank (#13) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2015-05-13 16:00:48 Armin Krauss (argh) 1523 (206965) 2015-05-21 01:33:08 Julia Bernotat (El Greco ) 1502 (81129) 2015-05-21 18:04:20 Alain (Integral) 1357 (207924) 2015-06-06 13:54:36 #13 Random Dude (rnd) 1106 (103645) 2019-06-14 00:42:27 Click here to see all users that have solved this challenge.

First four in challenge Weakened Handycipher — Part 1 Level II Start date: 2015-05-13 - 11:47 Rank (#15) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2015-05-13 12:44:32 Julia Bernotat (El Greco ) 1613 (81129) 2015-05-17 18:02:13 Armin Krauss (argh) 1485 (206965) 2015-05-22 19:32:50 Alain (Integral) 1362 (207924) 2015-06-05 15:01:59 #15 Random Dude (rnd) 1106 (103645) 2019-06-25 00:12:17 Click here to see all users that have solved this challenge.

First four in challenge A hidden word — Part 2 Level I Start date: 2015-04-16 - 16:47 Rank (#96) User Achieved points (Global score) Solved at y-m-d - h:m:s H. Lautenschlager (helmi) 200 (56470) 2015-04-16 18:29:39 Armin Krauss (argh) 200 (206965) 2015-04-16 18:35:30 Kurt Gebauer (Yokozuna) 200 (282608) 2015-04-16 19:50:36 Sebastian Slupina (Grandwizard) 200 (10866) 2015-04-16 20:13:45 #96 JCR (Jericho) 100 (8470) 2021-05-06 21:00:58 Click here to see all users that have solved this challenge.

First four in challenge Extended Handycipher — Part 3 Level II Start date: 2015-03-27 - 15:28 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s Michael Möller (michaelm) 1183 (253196) 2015-10-31 18:28:20 George Lasry (george4096) 1126 (399565) 2017-05-31 10:24:36 D3d4lu5 (D3d4lu5) 1109 (363488) 2018-11-16 17:12:39

First four in challenge Extended Handycipher — Part 2 Level II Start date: 2015-03-27 - 15:27 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s Michael Möller (michaelm) 1185 (253196) 2015-10-23 09:07:20 George Lasry (george4096) 1126 (399565) 2017-05-31 10:18:56 D3d4lu5 (D3d4lu5) 1109 (363488) 2018-11-13 20:07:14

First four in challenge Extended Handycipher — Part 1 Level II Start date: 2015-03-27 - 15:26 Rank (#3) User Achieved points (Global score) Solved at y-m-d - h:m:s Michael Möller (michaelm) 1192 (253196) 2015-09-27 11:51:38 George Lasry (george4096) 1126 (399565) 2017-05-31 10:23:02 D3d4lu5 (D3d4lu5) 1109 (363488) 2018-11-10 17:59:52

First four in challenge Number Sequence — Part 7 Level I Start date: 2015-03-23 - 11:51 Rank (#78) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2015-03-23 16:33:15 Kurt Gebauer (Yokozuna) 200 (282608) 2015-03-23 21:51:03 H. Lautenschlager (helmi) 200 (56470) 2015-03-23 23:26:20 Noah (Fridax2000) 133 (755) 2015-03-25 19:35:30 #78 madness (madness) 100 (71592) 2021-06-20 02:33:37 Click here to see all users that have solved this challenge.

First four in challenge Number Sequence — Part 6 Level I Start date: 2015-03-23 - 11:49 Rank (#137) User Achieved points (Global score) Solved at y-m-d - h:m:s Snake (snk) 200 (187783) 2015-03-23 13:02:20 Armin Krauss (argh) 200 (206965) 2015-03-23 14:00:53 Bernhard Gruber (bgr) 200 (22889) 2015-03-23 14:58:23 Viktor (Veselovský) 200 (169444) 2015-03-23 15:46:48 #136 madness (madness) 100 (71592) 2021-06-20 02:22:05 Click here to see all users that have solved this challenge.

First four in challenge Handycipher — Part 3 Level III Start date: 2015-03-03 - 23:40 Rank (#6) User Achieved points (Global score) Solved at y-m-d - h:m:s Alain (Integral) 15093 (207924) 2015-06-12 19:31:53 Michael Möller (michaelm) 14592 (253196) 2015-09-23 19:08:45 Em Doulgerakis (Greko) 13977 (193799) 2016-09-13 10:59:28 George Lasry (george4096) 13775 (399565) 2017-05-27 02:00:58 #6 D3d4lu5 (D3d4lu5) 13529 (363488) 2018-11-01 21:36:05 Click here to see all users that have solved this challenge.

First four in challenge Handycipher — Part 2 Level II Start date: 2015-03-03 - 23:34 Rank (#7) User Achieved points (Global score) Solved at y-m-d - h:m:s Alain (Integral) 1232 (207924) 2015-06-09 23:28:30 Michael Möller (michaelm) 1187 (253196) 2015-09-20 13:16:49 Em Doulgerakis (Greko) 1140 (193799) 2016-09-06 10:35:51 George Lasry (george4096) 1125 (399565) 2017-05-27 01:48:16 #7 Random Dude (rnd) 1104 (103645) 2019-07-21 17:29:33 Click here to see all users that have solved this challenge.

First four in challenge Handycipher — Part 1 Level II Start date: 2015-03-03 - 23:33 Rank (#5) User Achieved points (Global score) Solved at y-m-d - h:m:s Alain (Integral) 1233 (207924) 2015-06-08 17:49:57 Michael Möller (michaelm) 1188 (253196) 2015-09-19 21:09:57 George Lasry (george4096) 1125 (399565) 2017-05-27 01:43:42 Nicolas (nicosPavlov) 1116 (257791) 2018-01-30 05:42:58 #5 D3d4lu5 (D3d4lu5) 1109 (363488) 2018-11-01 17:41:29

First four in challenge M-138 — Part 4 Level II Start date: 2014-12-24 - 00:34 Rank (#25) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2014-12-24 12:41:00 Michael Möller (michaelm) 1367 (253196) 2015-01-15 21:25:39 Claude Vaillancourt (Cl3v3r) 1264 (44129) 2015-02-26 17:40:02 E.T (Ertheb) 1228 (81809) 2015-04-06 09:11:56 #25 Eric (ExAstris) 1094 (54941) 2021-05-05 05:08:15 Click here to see all users that have solved this challenge.

First four in challenge M-138 — Part 3 Level II Start date: 2014-12-24 - 00:33 Rank (#57) User Achieved points (Global score) Solved at y-m-d - h:m:s Bart den Hartog (Bart13) 2000 (148936) 2014-12-24 09:59:48 Kurt Gebauer (Yokozuna) 1725 (282608) 2014-12-26 03:32:17 Armin Krauss (argh) 1725 (206965) 2014-12-26 21:24:22 Michael Möller (michaelm) 1660 (253196) 2014-12-27 08:15:48 #57 Michael (FoM) 1094 (57794) 2021-04-17 14:26:20 Click here to see all users that have solved this challenge.

First four in challenge M-138 — Part 2 Level II Start date: 2014-12-24 - 00:31 Rank (#122) User Achieved points (Global score) Solved at y-m-d - h:m:s Bart den Hartog (Bart13) 2000 (148936) 2014-12-24 03:37:29 Kurt Gebauer (Yokozuna) 2000 (282608) 2014-12-24 08:23:24 Viktor (Veselovský) 2000 (169444) 2014-12-24 13:51:44 Snake (snk) 2000 (187783) 2014-12-24 21:51:26 #122 JCR (Jericho) 1094 (8470) 2021-05-06 10:57:42 Click here to see all users that have solved this challenge.

First four in challenge M-138 — Part 1 Level I Start date: 2014-12-24 - 00:28 Rank (#195) User Achieved points (Global score) Solved at y-m-d - h:m:s Bart den Hartog (Bart13) 200 (148936) 2014-12-24 01:44:19 Kurt Gebauer (Yokozuna) 200 (282608) 2014-12-24 06:16:27 Viktor (Veselovský) 200 (169444) 2014-12-24 12:52:59 Snake (snk) 200 (187783) 2014-12-24 14:45:53 #195 JCR (Jericho) 100 (8470) 2021-05-06 08:41:50 Click here to see all users that have solved this challenge.

First four in challenge The Last Note Level I Start date: 2014-09-22 - 22:13 Rank (#81) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2014-09-23 00:22:00 Robert (rm) 200 (56475) 2014-09-23 00:23:10 Viktor (Veselovský) 200 (169444) 2014-09-23 00:25:56 Frank Promer (Frank) 200 (200) 2014-09-23 09:07:22 #81 Claus Appelt (Konubixe) 100 (8066) 2021-05-04 13:53:59 Click here to see all users that have solved this challenge.

First four in challenge Heartbleed — Part 3 Level II Start date: 2014-08-28 - 14:35 Rank (#30) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2014-08-29 11:41:40 H. Lautenschlager (helmi) 1824 (56470) 2014-08-29 17:50:45 masam (jimboo) 1725 (18687) 2014-08-30 18:20:26 Thomas Lambert (lambert) 1725 (38594) 2014-08-31 13:03:28 #30 Snake (snk) 1100 (187783) 2019-09-26 09:57:32 Click here to see all users that have solved this challenge.

First four in challenge Heartbleed — Part 2 Level I Start date: 2014-08-28 - 14:34 Rank (#60) User Achieved points (Global score) Solved at y-m-d - h:m:s Thomas Gonda (TomG) 200 (36291) 2014-08-28 23:11:12 H. Lautenschlager (helmi) 200 (56470) 2014-08-28 23:31:40 Kurt Gebauer (Yokozuna) 200 (282608) 2014-08-29 00:21:03 Robert (rm) 200 (56475) 2014-08-29 05:17:12 #60 Eugene (lim0n) 100 (178540) 2019-10-06 16:45:42 Click here to see all users that have solved this challenge.

First four in challenge Heartbleed — Part 1 Level I Start date: 2014-08-28 - 14:32 Rank (#90) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 200 (282608) 2014-08-28 19:22:27 Thomas Gonda (TomG) 200 (36291) 2014-08-28 22:31:15 H. Lautenschlager (helmi) 200 (56470) 2014-08-28 23:03:13 Robert (rm) 200 (56475) 2014-08-29 02:38:29 #90 David (dvd) 100 (3813) 2021-03-22 21:40:41 Click here to see all users that have solved this challenge.

First four in challenge Double Column Transposition — Part 5 Level II Start date: 2014-06-23 - 15:56 Rank (#8) User Achieved points (Global score) Solved at y-m-d - h:m:s Francisco Moraes (fmoraes) 1469 (90044) 2014-07-03 19:02:38 Peter Mustermann (Gummiboot) 1362 (60285) 2014-07-16 18:54:42 Alain (Integral) 1330 (207924) 2014-07-25 14:02:24 George (Theofanidis) 1211 (123216) 2014-11-05 13:45:03 #8 Mir Dim (mir0soft) 1096 (79760) 2020-03-11 08:04:32 Click here to see all users that have solved this challenge.

First four in challenge Double Column Transposition — Part 4 Level II Start date: 2014-05-19 - 22:06 Rank (#44) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2014-05-20 01:16:11 Armin Krauss (argh) 2000 (206965) 2014-05-20 01:54:36 Bart den Hartog (Bart13) 2000 (148936) 2014-05-20 05:13:30 Snake (snk) 2000 (187783) 2014-05-20 08:53:55 #44 Eric (ExAstris) 1091 (54941) 2021-05-02 05:59:17 Click here to see all users that have solved this challenge.

First four in challenge Double Column Transposition — Part 3 Level II Start date: 2014-05-02 - 11:44 Rank (#37) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2014-05-02 14:20:58 Viktor (Veselovský) 2000 (169444) 2014-05-02 23:01:45 Alain (Integral) 2000 (207924) 2014-05-03 10:17:50 Armin Krauss (argh) 1660 (206965) 2014-05-06 11:23:34 #37 madness (madness) 1091 (71592) 2021-04-12 16:01:46 Click here to see all users that have solved this challenge.

First four in challenge Double Column Transposition — Part 2 Level II Start date: 2014-05-02 - 11:30 Rank (#41) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 2000 (282608) 2014-05-02 21:43:12 Viktor (Veselovský) 2000 (169444) 2014-05-02 22:03:11 Alain (Integral) 2000 (207924) 2014-05-03 11:10:58 George (Theofanidis) 1660 (123216) 2014-05-05 20:22:45 #41 madness (madness) 1091 (71592) 2021-04-12 15:42:57 Click here to see all users that have solved this challenge.

First four in challenge ORYX Stream Cipher — Part 4c Level III Start date: 2014-04-14 - 20:39 No one solved the challenge right now. Be the first!

First four in challenge ORYX Stream Cipher — Part 4b Level III Start date: 2014-04-14 - 20:38 Rank (#2) User Achieved points (Global score) Solved at y-m-d - h:m:s S Combes (jerva) 14283 (242717) 2015-03-10 22:57:57 George Lasry (george4096) 13594 (399565) 2017-06-27 11:31:13

First four in challenge ORYX Stream Cipher — Part 4a Level II Start date: 2014-04-14 - 20:37 Rank (#11) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 1433 (206965) 2014-04-28 08:48:57 Kurt Gebauer (Yokozuna) 1330 (282608) 2014-05-15 20:49:07 S Combes (jerva) 1165 (242717) 2015-02-17 19:53:47 Forrest Gump (Polyphem) 1142 (38763) 2015-09-21 20:33:17 #11 Michael (FoM) 1101 (57794) 2019-03-11 23:55:56 Click here to see all users that have solved this challenge.

First four in challenge Double Column Transposition — Part 1 Level II Start date: 2014-04-04 - 17:36 Rank (#29) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 2000 (206965) 2014-04-05 01:37:34 Alain (Integral) 1433 (207924) 2014-04-17 23:21:30 Kurt Gebauer (Yokozuna) 1423 (282608) 2014-04-19 04:35:32 Viktor (Veselovský) 1341 (169444) 2014-05-02 23:14:41 #29 madness (madness) 1091 (71592) 2021-04-12 04:34:44 Click here to see all users that have solved this challenge.

First four in challenge Spanish Strip Cipher — Part 3 Level X Start date: 2014-03-27 - 14:45 No one solved the challenge right now. Be the first!

First four in challenge Spanish Strip Cipher — Part 2 Level II Start date: 2014-03-27 - 14:44 Rank (#26) User Achieved points (Global score) Solved at y-m-d - h:m:s Alain (Integral) 2000 (207924) 2014-03-28 01:32:12 Armin Krauss (argh) 1824 (206965) 2014-03-29 13:03:25 masam (jimboo) 1824 (18687) 2014-03-29 14:02:31 E.T (Ertheb) 1725 (81809) 2014-03-29 20:08:59 #26 Kurt Gebauer (Yokozuna) 1091 (282608) 2021-05-20 09:05:10 Click here to see all users that have solved this challenge.

First four in challenge Spanish Strip Cipher — Part 1 Level II Start date: 2014-03-27 - 14:43 Rank (#30) User Achieved points (Global score) Solved at y-m-d - h:m:s Alain (Integral) 2000 (207924) 2014-03-27 22:27:27 Viktor (Veselovský) 2000 (169444) 2014-03-28 00:56:25 Armin Krauss (argh) 1824 (206965) 2014-03-28 15:55:56 Kurt Gebauer (Yokozuna) 1824 (282608) 2014-03-28 21:39:18 #29 Robert (rcw8892) 1091 (8716) 2021-05-10 17:33:43 Click here to see all users that have solved this challenge.

First four in challenge Enigma Messages with Repeated Letters — Part 5 Level I Start date: 2014-03-05 - 16:04 Rank (#72) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2014-03-05 17:31:55 J. M. (jomandi) 200 (113270) 2014-03-05 17:39:07 H. Lautenschlager (helmi) 200 (56470) 2014-03-05 20:15:51 Kurt Gebauer (Yokozuna) 200 (282608) 2014-03-05 20:32:05 #72 Eric (ExAstris) 100 (54941) 2021-05-19 00:35:18 Click here to see all users that have solved this challenge.

First four in challenge Enigma Messages with Repeated Letters — Part 4 Level I Start date: 2014-03-05 - 16:03 Rank (#67) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2014-03-05 18:39:36 Viktor (Veselovský) 200 (169444) 2014-03-05 22:21:49 Kurt Gebauer (Yokozuna) 200 (282608) 2014-03-06 00:00:51 Snake (snk) 200 (187783) 2014-03-06 12:03:10 #67 mglarragan (mglarragan) 100 (3774) 2021-06-21 20:39:11 Click here to see all users that have solved this challenge.

First four in challenge Enigma Messages with Repeated Letters — Part 3 Level I Start date: 2014-03-05 - 16:02 Rank (#75) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2014-03-05 17:28:32 J. M. (jomandi) 200 (113270) 2014-03-05 19:28:13 E.T (Ertheb) 200 (81809) 2014-03-05 21:21:28 Viktor (Veselovský) 200 (169444) 2014-03-05 22:02:36 #75 mglarragan (mglarragan) 100 (3774) 2021-06-21 20:14:23 Click here to see all users that have solved this challenge.

First four in challenge Double Column Transposition Reloaded — Part 3 Level III Start date: 2013-12-11 - 20:11 No one solved the challenge right now. Be the first!

First four in challenge Double Column Transposition Reloaded — Part 2 Level III Start date: 2013-12-11 - 20:11 No one solved the challenge right now. Be the first!

First four in challenge Double Column Transposition Reloaded — Part 1 Level III Start date: 2013-12-11 - 20:09 No one solved the challenge right now. Be the first!

First four in challenge Enigma Messages with Repeated Letters — Part 2 Level I Start date: 2013-10-28 - 20:53 Rank (#75) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2013-10-28 23:12:20 Viktor (Veselovský) 200 (169444) 2013-10-29 01:39:38 Em Doulgerakis (Greko) 200 (193799) 2013-10-29 11:32:52 Kurt Gebauer (Yokozuna) 200 (282608) 2013-10-29 16:44:09 #75 mglarragan (mglarragan) 100 (3774) 2021-06-21 20:28:48 Click here to see all users that have solved this challenge.

First four in challenge Trifid Cipher Level I Start date: 2013-10-28 - 20:49 Rank (#116) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2013-10-29 00:11:55 Kurt Gebauer (Yokozuna) 200 (282608) 2013-10-29 01:01:21 Viktor (Veselovský) 200 (169444) 2013-10-29 01:09:57 Snake (snk) 200 (187783) 2013-10-29 11:28:48 #116 Claus Appelt (Konubixe) 100 (8066) 2021-06-02 22:20:43 Click here to see all users that have solved this challenge.

First four in challenge Enigma Messages with Repeated Letters — Part 1 Level I Start date: 2013-09-26 - 15:05 Rank (#161) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2013-09-26 15:14:57 H. Lautenschlager (helmi) 200 (56470) 2013-09-26 15:43:29 J. M. (jomandi) 200 (113270) 2013-09-26 15:57:21 Alexander (cruachan) 200 (16051) 2013-09-26 16:49:25 #161 JCR (Jericho) 100 (8470) 2021-05-11 22:37:44 Click here to see all users that have solved this challenge.

First four in challenge Hill Cipher with Sudoku Key Level I Start date: 2013-09-04 - 16:27 Rank (#84) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2013-09-04 16:45:32 George (Theofanidis) 200 (123216) 2013-09-04 18:43:31 masam (jimboo) 200 (18687) 2013-09-05 00:18:55 E.T (Ertheb) 200 (81809) 2013-09-05 12:53:10 #84 Eric (ExAstris) 100 (54941) 2021-06-09 22:34:55 Click here to see all users that have solved this challenge.

First four in challenge From Russia with Love Level I Start date: 2013-09-04 - 14:30 Rank (#264) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2013-09-04 14:45:09 J. M. (jomandi) 200 (113270) 2013-09-04 16:39:17 Snake (snk) 200 (187783) 2013-09-04 17:09:40 Em Doulgerakis (Greko) 200 (193799) 2013-09-04 17:42:51 #263 JCR (Jericho) 100 (8470) 2021-05-06 18:47:03 Click here to see all users that have solved this challenge.

First four in challenge Nils away on travel Level I Start date: 2013-08-08 - 13:00 Rank (#155) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2013-08-08 13:22:19 Viktor (Veselovský) 200 (169444) 2013-08-08 13:43:45 J. M. (jomandi) 200 (113270) 2013-08-08 14:10:14 Em Doulgerakis (Greko) 200 (193799) 2013-08-08 14:39:32 #155 Eric (ExAstris) 100 (54941) 2021-05-09 02:27:58 Click here to see all users that have solved this challenge.

First four in challenge RSA Factoring Challenge: RSA-704 Level II Start date: 2013-07-31 - 16:34 Rank (#51) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 0 (206965) 2013-07-31 18:55:07 Viktor (Veselovský) 0 (169444) 2013-07-31 19:30:43 J. M. (jomandi) 0 (113270) 2013-08-01 00:19:22 Luigi Tomelli (archstanton) 0 (127538) 2013-08-01 09:37:51 #49 Eric (ExAstris) 0 (54941) 2021-05-13 03:20:09 Click here to see all users that have solved this challenge.

First four in challenge ORYX Stream Cipher — Part 4d Level III Start date: 2013-06-27 - 11:38 No one solved the challenge right now. Be the first!

First four in challenge ORYX Stream Cipher — Part 3 (revised) Level II Start date: 2013-06-06 - 20:39 Rank (#30) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 2000 (169444) 2013-06-06 22:17:21 J. M. (jomandi) 2000 (113270) 2013-06-06 23:37:08 Kurt Gebauer (Yokozuna) 2000 (282608) 2013-06-07 03:14:23 George (Theofanidis) 2000 (123216) 2013-06-07 05:16:04 #30 Mike (RogueRamblers) 1093 (75961) 2019-11-16 01:01:12 Click here to see all users that have solved this challenge.

First four in challenge Snow White and the seven dwarfs Level I Start date: 2013-04-20 - 11:23 Rank (#278) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 200 (282608) 2013-04-20 13:44:29 J. M. (jomandi) 200 (113270) 2013-04-20 13:54:57 H. Lautenschlager (helmi) 200 (56470) 2013-04-20 13:56:40 Viktor (Veselovský) 200 (169444) 2013-04-20 14:49:10 #278 gordon (sir5) 100 (16181) 2021-05-27 07:01:33 Click here to see all users that have solved this challenge.

First four in challenge Typex — Part 2 Level II Start date: 2013-04-03 - 14:40 Rank (#22) User Achieved points (Global score) Solved at y-m-d - h:m:s J. M. (jomandi) 2000 (113270) 2013-04-04 00:08:52 Kurt Gebauer (Yokozuna) 2000 (282608) 2013-04-04 02:36:42 Seth Kintigh (DarkFibre) 2000 (79471) 2013-04-04 03:51:27 Luigi Tomelli (archstanton) 1725 (127538) 2013-04-05 21:50:01 #22 Eugene (lim0n) 1090 (178540) 2020-07-29 16:01:07 Click here to see all users that have solved this challenge.

First four in challenge Cascading Encryption — Part 3/3 Level II Start date: 2013-03-29 - 12:52 Rank (#12) User Achieved points (Global score) Solved at y-m-d - h:m:s Luigi Tomelli (archstanton) 1485 (127538) 2013-04-08 11:32:41 J. M. (jomandi) 1353 (113270) 2013-04-23 21:11:38 George Lasry (george4096) 1190 (399565) 2013-10-07 04:33:16 Em Doulgerakis (Greko) 1186 (193799) 2013-10-19 17:49:39 #12 Eugene (lim0n) 1091 (178540) 2020-04-24 18:32:49 Click here to see all users that have solved this challenge.

First four in challenge Cascading Encryption — Part 2/3 Level II Start date: 2013-03-25 - 15:05 Rank (#14) User Achieved points (Global score) Solved at y-m-d - h:m:s Luigi Tomelli (archstanton) 1547 (127538) 2013-03-31 20:34:10 J. M. (jomandi) 1349 (113270) 2013-04-21 15:29:10 Armin Krauss (argh) 1214 (206965) 2013-07-31 19:03:54 Em Doulgerakis (Greko) 1195 (193799) 2013-09-14 23:30:24 #14 Eric (ExAstris) 1087 (54941) 2021-05-28 04:47:11 Click here to see all users that have solved this challenge.

First four in challenge Reserve Hand Procedure — Part 1 Level I Start date: 2013-03-06 - 21:14 Rank (#186) User Achieved points (Global score) Solved at y-m-d - h:m:s H. Lautenschlager (helmi) 200 (56470) 2013-03-06 22:27:40 Viktor (Veselovský) 200 (169444) 2013-03-06 22:41:39 J. M. (jomandi) 200 (113270) 2013-03-06 22:50:44 Kurt Gebauer (Yokozuna) 200 (282608) 2013-03-06 23:14:08 #186 Claus Appelt (Konubixe) 100 (8066) 2021-05-31 23:34:40 Click here to see all users that have solved this challenge.

First four in challenge Typex — Part 1 Level II Start date: 2013-02-28 - 14:02 Rank (#25) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 2000 (206965) 2013-02-28 23:48:44 Kurt Gebauer (Yokozuna) 1725 (282608) 2013-03-03 01:19:38 J. M. (jomandi) 1613 (113270) 2013-03-04 15:08:24 Luigi Tomelli (archstanton) 1456 (127538) 2013-03-12 09:42:54 #25 Eugene (lim0n) 1090 (178540) 2020-07-27 17:05:04 Click here to see all users that have solved this challenge.

First four in challenge Multilingual Monoalphabetic Substitution Level I Start date: 2013-01-30 - 14:27 Rank (#69) User Achieved points (Global score) Solved at y-m-d - h:m:s E.T (Ertheb) 200 (81809) 2013-01-30 17:43:50 Armin Krauss (argh) 200 (206965) 2013-01-30 21:36:36 Viktor (Veselovský) 200 (169444) 2013-01-31 01:07:14 Snake (snk) 150 (187783) 2013-01-31 16:01:55 #69 Anabel Roschmann (Beltiona Mousa) 100 (4919) 2020-12-21 06:02:23 Click here to see all users that have solved this challenge.

First four in challenge Cascading Encryption — Part 1/3 Level I Start date: 2013-01-25 - 15:00 Rank (#67) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 200 (169444) 2013-01-25 15:50:34 Bart den Hartog (Bart13) 200 (148936) 2013-01-25 20:50:32 J. M. (jomandi) 200 (113270) 2013-01-26 02:06:04 Hans Peter (hanspeter) 200 (52356) 2013-01-26 03:09:36 #67 Alexander W. Janssen (itnomad) 100 (10782) 2021-02-20 17:10:40 Click here to see all users that have solved this challenge.

First four in challenge Enigma Messages Level I Start date: 2013-01-23 - 15:32 Rank (#71) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 200 (169444) 2013-01-23 18:33:36 E.T (Ertheb) 200 (81809) 2013-01-23 20:02:00 Armin Krauss (argh) 200 (206965) 2013-01-23 22:01:52 J. M. (jomandi) 200 (113270) 2013-01-23 23:06:08 #71 Michael Ammon (Ammonym) 100 (10120) 2021-04-28 23:55:50 Click here to see all users that have solved this challenge.

First four in challenge Playfair with hints about the grid Level I Start date: 2013-01-16 - 12:00 Rank (#105) User Achieved points (Global score) Solved at y-m-d - h:m:s Hans Peter (hanspeter) 200 (52356) 2013-01-16 17:40:39 J. M. (jomandi) 200 (113270) 2013-01-16 17:50:41 Viktor (Veselovský) 200 (169444) 2013-01-16 18:13:58 Armin Krauss (argh) 200 (206965) 2013-01-16 19:00:47 #104 Claus Appelt (Konubixe) 100 (8066) 2021-05-24 19:48:46 Click here to see all users that have solved this challenge.

First four in challenge A hidden word Level I Start date: 2013-01-06 - 14:32 Rank (#768) User Achieved points (Global score) Solved at y-m-d - h:m:s Bart den Hartog (Bart13) 200 (148936) 2013-01-06 15:42:38 Camille (Kam139) 200 (2642) 2013-01-06 15:47:08 Viktor (Veselovský) 200 (169444) 2013-01-06 15:49:04 Armin Krauss (argh) 200 (206965) 2013-01-06 16:15:30 #767 Jorge M. (tlon) 100 (2086) 2021-05-30 10:48:21 Click here to see all users that have solved this challenge.

First four in challenge Strange Message from Thessaloniki Level I Start date: 2012-12-10 - 15:10 Rank (#45) User Achieved points (Global score) Solved at y-m-d - h:m:s Hans Peter (hanspeter) 200 (52356) 2012-12-10 20:46:24 Viktor (Veselovský) 200 (169444) 2012-12-10 21:35:02 Armin Krauss (argh) 200 (206965) 2012-12-10 21:35:41 Bart den Hartog (Bart13) 200 (148936) 2012-12-11 00:52:40 #45 Claus Appelt (Konubixe) 100 (8066) 2021-05-23 17:51:09 Click here to see all users that have solved this challenge.

First four in challenge Recycled One-Time Pad Level I Start date: 2012-11-20 - 16:48 Rank (#62) User Achieved points (Global score) Solved at y-m-d - h:m:s Hans Peter (hanspeter) 114 (52356) 2012-11-26 17:48:41 H. Lautenschlager (helmi) 114 (56470) 2012-11-26 19:16:43 Kurt Gebauer (Yokozuna) 114 (282608) 2012-11-26 19:21:06 Viktor (Veselovský) 114 (169444) 2012-11-26 23:22:20 #62 Jean-Francois (Muskrat) 100 (19013) 2021-01-07 14:52:11 Click here to see all users that have solved this challenge.

First four in challenge Letter to the Templars — Part 3 Level II Start date: 2012-10-09 - 15:00 Rank (#666) User Achieved points (Global score) Solved at y-m-d - h:m:s J. M. (jomandi) 2000 (113270) 2012-10-09 15:34:04 Bart den Hartog (Bart13) 2000 (148936) 2012-10-09 16:24:56 Kurt Gebauer (Yokozuna) 2000 (282608) 2012-10-09 16:42:34 Viktor (Veselovský) 2000 (169444) 2012-10-09 17:40:23 #665 Jorge M. (tlon) 1086 (2086) 2021-05-30 10:06:46 Click here to see all users that have solved this challenge.

First four in challenge BCR code (Book-Caesar-RSA) Level II Start date: 2012-09-12 - 18:35 Rank (#67) User Achieved points (Global score) Solved at y-m-d - h:m:s Seth Kintigh (DarkFibre) 2000 (79471) 2012-09-12 22:05:29 Armin Krauss (argh) 2000 (206965) 2012-09-12 22:42:38 Viktor (Veselovský) 2000 (169444) 2012-09-13 03:09:10 Em Doulgerakis (Greko) 2000 (193799) 2012-09-13 11:06:17 #67 Gerd Wilts (gerdw) 1087 (50534) 2021-02-15 23:39:02 Click here to see all users that have solved this challenge.

First four in challenge Beaver Code Level I Start date: 2012-08-13 - 20:12 Rank (#1117) User Achieved points (Global score) Solved at y-m-d - h:m:s Kurt Gebauer (Yokozuna) 200 (282608) 2012-08-13 20:37:45 H. Lautenschlager (helmi) 200 (56470) 2012-08-13 20:45:13 J. M. (jomandi) 200 (113270) 2012-08-13 20:54:24 David (aki321) 200 (27482) 2012-08-13 21:00:24 #1116 Jorge M. (tlon) 100 (2086) 2021-05-28 13:08:36 Click here to see all users that have solved this challenge.

First four in challenge Letter to the Templars — Part 2 Level I Start date: 2012-07-30 - 20:10 Rank (#782) User Achieved points (Global score) Solved at y-m-d - h:m:s H. Lautenschlager (helmi) 200 (56470) 2012-07-30 20:20:45 Kurt Gebauer (Yokozuna) 200 (282608) 2012-07-30 20:40:43 J. M. (jomandi) 200 (113270) 2012-07-30 20:51:17 Viktor (Veselovský) 200 (169444) 2012-07-30 20:56:20 #781 Jorge M. (tlon) 100 (2086) 2021-05-30 09:42:56 Click here to see all users that have solved this challenge.

First four in challenge Letter to the Templars — Part 1 Level I Start date: 2012-07-16 - 21:08 Rank (#974) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 200 (169444) 2012-07-16 22:14:36 Seth Kintigh (DarkFibre) 200 (79471) 2012-07-16 22:40:41 J. M. (jomandi) 200 (113270) 2012-07-16 22:58:53 Kurt Gebauer (Yokozuna) 200 (282608) 2012-07-16 22:59:07 #973 Jorge M. (tlon) 100 (2086) 2021-05-30 09:31:41 Click here to see all users that have solved this challenge.

First four in challenge Monoalphabetic Substitution with Camouflage — Part 6 Level II Start date: 2012-06-30 - 12:57 Rank (#1) User Achieved points (Global score) Solved at y-m-d - h:m:s Peter Mustermann (Gummiboot) 1209 (60285) 2012-11-16 15:13:11

First four in challenge An 'unhearable' message Level I Start date: 2012-06-05 - 19:56 Rank (#40) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2012-06-05 22:45:37 Bart den Hartog (Bart13) 150 (148936) 2012-06-06 23:58:28 J. M. (jomandi) 125 (113270) 2012-06-09 15:45:52 Dusan (xxdradus) 117 (40436) 2012-06-11 10:18:32 #40 Alexander W. Janssen (itnomad) 100 (10782) 2021-02-04 21:40:43 Click here to see all users that have solved this challenge.

First four in challenge How do you become a big cryptographer? Level I Start date: 2012-05-28 - 17:07 Rank (#214) User Achieved points (Global score) Solved at y-m-d - h:m:s Hans Peter (hanspeter) 200 (52356) 2012-05-28 20:05:04 Armin Krauss (argh) 200 (206965) 2012-05-28 20:05:53 J. M. (jomandi) 200 (113270) 2012-05-28 23:26:26 Kurt Gebauer (Yokozuna) 200 (282608) 2012-05-29 01:44:42 #214 Eric (ExAstris) 100 (54941) 2021-05-30 19:04:55 Click here to see all users that have solved this challenge.

First four in challenge Keyshanc — Part 2 Level II Start date: 2012-05-21 - 20:50 Rank (#35) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 2000 (169444) 2012-05-21 23:15:04 Armin Krauss (argh) 2000 (206965) 2012-05-21 23:46:55 Seth Kintigh (DarkFibre) 2000 (79471) 2012-05-22 00:25:15 J. M. (jomandi) 2000 (113270) 2012-05-22 00:37:56 #35 Mike (RogueRamblers) 1087 (75961) 2020-11-01 23:00:43 Click here to see all users that have solved this challenge.

First four in challenge Keyshanc — Part 1 Level II Start date: 2012-05-21 - 20:46 Rank (#45) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 2000 (169444) 2012-05-21 22:46:39 J. M. (jomandi) 2000 (113270) 2012-05-21 23:06:46 Armin Krauss (argh) 2000 (206965) 2012-05-21 23:10:43 Seth Kintigh (DarkFibre) 2000 (79471) 2012-05-22 00:08:46 #45 Mike (RogueRamblers) 1087 (75961) 2020-10-28 01:22:09 Click here to see all users that have solved this challenge.

First four in challenge Concealed Messages — Vigenère's Night Sky Level X Start date: 2012-05-01 - 10:31 Rank (#16) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 2000 (169444) 2012-05-04 03:23:00 Armin Krauss (argh) 1807 (206965) 2012-05-05 18:20:00 J. M. (jomandi) 1613 (113270) 2012-05-13 13:00:00 E.T (Ertheb) 1199 (81809) 2012-10-12 22:20:00 #15 j.h. (haegarq) 0 (15352) 2017-07-26 16:56:19 Click here to see all users that have solved this challenge.

First four in challenge Number Sequence — Part 5 Level I Start date: 2012-04-18 - 19:27 Rank (#88) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 114 (169444) 2012-04-24 19:50:59 Armin Krauss (argh) 114 (206965) 2012-04-24 20:13:34 J. M. (jomandi) 114 (113270) 2012-04-24 20:44:02 Bart den Hartog (Bart13) 114 (148936) 2012-04-24 22:52:44 #88 Martin (martinbucher) 100 (38365) 2021-05-24 14:31:03 Click here to see all users that have solved this challenge.

First four in challenge Number Sequence — Part 4 Level I Start date: 2012-04-18 - 19:25 Rank (#776) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 114 (169444) 2012-04-24 19:50:41 Armin Krauss (argh) 114 (206965) 2012-04-24 20:13:47 J. M. (jomandi) 114 (113270) 2012-04-24 20:43:44 E.T (Ertheb) 114 (81809) 2012-04-24 20:50:46 #774 Jorge M. (tlon) 100 (2086) 2021-05-30 10:28:58 Click here to see all users that have solved this challenge.

First four in challenge ¿No Hablas Español? No problemo! Level I Start date: 2012-04-18 - 19:19 Rank (#141) User Achieved points (Global score) Solved at y-m-d - h:m:s The Killer (Killer) 200 (42393) 2012-04-18 20:27:08 Seth Kintigh (DarkFibre) 200 (79471) 2012-04-18 20:36:30 Viktor (Veselovský) 200 (169444) 2012-04-18 20:40:31 Thomas Lambert (lambert) 200 (38594) 2012-04-18 21:53:34 #141 JCR (Jericho) 100 (8470) 2021-05-06 21:25:33 Click here to see all users that have solved this challenge.

First four in challenge Number Sequence — Part 3 Level I Start date: 2012-03-30 - 22:49 Rank (#938) User Achieved points (Global score) Solved at y-m-d - h:m:s J. M. (jomandi) 200 (113270) 2012-03-30 23:43:31 Viktor (Veselovský) 200 (169444) 2012-03-30 23:56:03 The Killer (Killer) 200 (42393) 2012-03-31 01:05:55 Seth Kintigh (DarkFibre) 200 (79471) 2012-03-31 07:13:14 #936 Jorge M. (tlon) 100 (2086) 2021-05-25 20:59:06 Click here to see all users that have solved this challenge.

First four in challenge The Book Code: A Challenge for Bookworms Level I Start date: 2012-03-21 - 11:02 Rank (#141) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 200 (169444) 2012-03-21 14:09:53 Hans Peter (hanspeter) 200 (52356) 2012-03-21 16:45:18 Armin Krauss (argh) 200 (206965) 2012-03-21 18:35:26 Kurt Gebauer (Yokozuna) 200 (282608) 2012-03-21 18:40:55 #141 Claus Appelt (Konubixe) 100 (8066) 2021-05-24 16:59:52 Click here to see all users that have solved this challenge.

First four in challenge Monoalphabetic Substitution with Camouflage — Part 5 Level II Start date: 2012-03-09 - 21:49 Rank (#28) User Achieved points (Global score) Solved at y-m-d - h:m:s The Killer (Killer) 2000 (42393) 2012-03-10 18:17:46 J. M. (jomandi) 2000 (113270) 2012-03-10 18:57:08 Armin Krauss (argh) 2000 (206965) 2012-03-10 21:16:55 Seth Kintigh (DarkFibre) 1824 (79471) 2012-03-11 00:47:49 #28 Eugene (lim0n) 1086 (178540) 2021-01-23 13:01:51 Click here to see all users that have solved this challenge.

First four in challenge ECDH-Key Exchange for Beginners Level I Start date: 2012-02-24 - 00:00 Rank (#89) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 200 (169444) 2012-02-24 01:30:57 Bart den Hartog (Bart13) 200 (148936) 2012-02-24 05:01:51 Seth Kintigh (DarkFibre) 200 (79471) 2012-02-24 05:50:55 Armin Krauss (argh) 200 (206965) 2012-02-24 08:50:00 #89 Enigmatic (Enigmatic) 100 (11604) 2021-01-16 04:15:58 Click here to see all users that have solved this challenge.

First four in challenge Partial Key Exposure with RSA — Part 1 Level II Start date: 2012-02-11 - 13:20 Rank (#81) User Achieved points (Global score) Solved at y-m-d - h:m:s Bart den Hartog (Bart13) 2000 (148936) 2012-02-11 13:23:49 Viktor (Veselovský) 2000 (169444) 2012-02-11 13:32:57 J. M. (jomandi) 2000 (113270) 2012-02-11 13:58:47 Nathan (Witten) 2000 (25326) 2012-02-11 14:53:02 #81 Kamil (Lim4K) 1085 (7681) 2021-02-20 11:44:51 Click here to see all users that have solved this challenge.

First four in challenge RSA Factoring Challenge: RSA-2048 Level III Start date: 2012-02-07 - 12:13 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-617 Level III Start date: 2012-02-07 - 12:13 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-500 Level III Start date: 2012-02-07 - 12:11 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-490 Level III Start date: 2012-02-07 - 12:10 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-480 Level III Start date: 2012-02-07 - 12:09 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-470 Level III Start date: 2012-02-07 - 12:08 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-1536 Level III Start date: 2012-02-07 - 12:07 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-460 Level III Start date: 2012-02-07 - 12:06 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-450 Level III Start date: 2012-02-07 - 12:05 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-440 Level III Start date: 2012-02-07 - 12:04 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-430 Level III Start date: 2012-02-07 - 12:03 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-420 Level III Start date: 2012-02-07 - 12:02 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-410 Level III Start date: 2012-02-07 - 12:01 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-400 Level III Start date: 2012-02-07 - 12:00 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-390 Level III Start date: 2012-02-07 - 11:59 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-380 Level III Start date: 2012-02-07 - 11:58 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-370 Level III Start date: 2012-02-07 - 11:57 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-360 Level III Start date: 2012-02-07 - 11:55 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-350 Level III Start date: 2012-02-07 - 11:21 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-340 Level III Start date: 2012-02-07 - 11:19 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-330 Level III Start date: 2012-02-07 - 11:18 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-320 Level III Start date: 2012-02-07 - 11:16 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-310 Level III Start date: 2012-02-07 - 11:15 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-1024 Level III Start date: 2012-02-07 - 11:13 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-309 Level III Start date: 2012-02-07 - 11:11 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-300 Level III Start date: 2012-02-07 - 11:09 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-290 Level III Start date: 2012-02-07 - 11:07 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-280 Level III Start date: 2012-02-07 - 11:05 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-896 Level III Start date: 2012-02-07 - 11:04 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-270 Level III Start date: 2012-02-07 - 11:02 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-260 Level III Start date: 2012-02-07 - 10:50 No one solved the challenge right now. Be the first!

First four in challenge RSA Factoring Challenge: RSA-250 Level III Start date: 2012-02-07 - 10:48 Rank (#14) User Achieved points (Global score) Solved at y-m-d - h:m:s George (Theofanidis) 0 (123216) 2020-03-12 21:20:24 Snake (snk) 0 (187783) 2020-03-16 22:31:47 Erik (Erox) 0 (26141) 2020-03-17 16:24:16 simone (xseris) 0 (8632) 2020-04-14 09:48:28 #14 Eric (ExAstris) 0 (54941) 2021-05-13 03:15:00 Click here to see all users that have solved this challenge.

First four in challenge RSA Factoring Challenge: RSA-240 Level III Start date: 2012-02-07 - 10:47 Rank (#16) User Achieved points (Global score) Solved at y-m-d - h:m:s Snake (snk) 0 (187783) 2019-12-02 20:05:22 Kurt Gebauer (Yokozuna) 0 (282608) 2019-12-03 02:09:39 George (Theofanidis) 0 (123216) 2019-12-15 22:40:32 Roman Seefeld (Antares) 0 (15543) 2020-03-02 11:00:19 #15 Eric (ExAstris) 0 (54941) 2021-05-13 03:07:15 Click here to see all users that have solved this challenge.

First four in challenge RSA Factoring Challenge: RSA-232 Level III Start date: 2012-02-07 - 10:45 Rank (#13) User Achieved points (Global score) Solved at y-m-d - h:m:s George (Theofanidis) 0 (123216) 2020-03-12 21:24:12 Erik (Erox) 0 (26141) 2020-03-17 16:25:27 Snake (snk) 0 (187783) 2020-03-25 13:36:58 simone (xseris) 0 (8632) 2020-04-14 09:43:45 #13 Eric (ExAstris) 0 (54941) 2021-05-13 03:11:30 Click here to see all users that have solved this challenge.

First four in challenge RSA Factoring Challenge: RSA-230 Level II Start date: 2012-02-07 - 10:43 Rank (#27) User Achieved points (Global score) Solved at y-m-d - h:m:s Random Dude (rnd) 0 (103645) 2018-11-06 17:26:28 George (Theofanidis) 0 (123216) 2018-11-07 18:49:46 Armin Krauss (argh) 0 (206965) 2018-11-07 21:12:15 Viktor (Veselovský) 0 (169444) 2018-11-07 22:42:08 #25 Eric (ExAstris) 0 (54941) 2021-05-13 03:23:46 Click here to see all users that have solved this challenge.

First four in challenge RSA Factoring Challenge: RSA-220 Level II Start date: 2012-02-07 - 10:42 Rank (#30) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 0 (169444) 2016-11-23 11:38:21 Snake (snk) 0 (187783) 2016-12-01 16:20:47 S (Zyphe) 0 (13361) 2017-01-02 19:39:56 Bart den Hartog (Bart13) 0 (148936) 2017-01-25 19:34:20 #29 Eric (ExAstris) 0 (54941) 2021-05-13 03:22:08 Click here to see all users that have solved this challenge.

First four in challenge RSA Factoring Challenge: RSA-210 Level II Start date: 2012-02-07 - 10:30 Rank (#45) User Achieved points (Global score) Solved at y-m-d - h:m:s Viktor (Veselovský) 0 (169444) 2013-11-27 18:28:21 Armin Krauss (argh) 0 (206965) 2013-12-01 18:31:41 Francisco Moraes (fmoraes) 0 (90044) 2013-12-01 19:58:59 J. M. (jomandi) 0 (113270) 2013-12-01 22:53:09 #44 Eric (ExAstris) 0 (54941) 2021-05-13 03:18:13 Click here to see all users that have solved this challenge.

First four in challenge AES key — encoded in the machine readable zone of a European ePassport Level II Start date: 2012-01-16 - 19:03 Rank (#67) User Achieved points (Global score) Solved at y-m-d - h:m:s Seth Kintigh (DarkFibre) 2000 (79471) 2012-01-16 22:06:28 Armin Krauss (argh) 2000 (206965) 2012-01-16 23:02:42 Viktor (Veselovský) 2000 (169444) 2012-01-17 15:26:52 J. M. (jomandi) 1725 (113270) 2012-01-19 16:01:37 #67 madness (madness) 1085 (71592) 2021-04-17 19:15:13 Click here to see all users that have solved this challenge.

First four in challenge Factorization Cipher — Part 3 Level II Start date: 2012-01-06 - 13:10 Rank (#89) User Achieved points (Global score) Solved at y-m-d - h:m:s Mayuresh Anand (effort2break) 1824 (8728) 2012-01-07 21:39:28 Armin Krauss (argh) 1824 (206965) 2012-01-07 22:35:57 Nathan (Witten) 1824 (25326) 2012-01-08 01:11:25 Seth Kintigh (DarkFibre) 1824 (79471) 2012-01-08 04:54:22 #89 Silvia Kortmann (mikinsget) 1084 (20341) 2021-05-02 17:38:04 Click here to see all users that have solved this challenge.

First four in challenge Monoalphabetic substitution with camouflage — Part 4 Level I Start date: 2011-12-21 - 13:50 Rank (#46) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2011-12-21 23:01:38 Nathan (Witten) 200 (25326) 2011-12-22 11:32:59 Bart den Hartog (Bart13) 200 (148936) 2011-12-22 13:18:58 J. M. (jomandi) 150 (113270) 2011-12-22 18:04:13 #46 Somebody (Achidutzu) 100 (14883) 2021-02-17 14:53:53 Click here to see all users that have solved this challenge.

First four in challenge Monoalphabetic substitution with camouflage — Part 3 Level II Start date: 2011-12-07 - 15:10 Rank (#44) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 2000 (206965) 2011-12-08 14:37:32 Bart den Hartog (Bart13) 1824 (148936) 2011-12-08 17:06:12 David (aki321) 1824 (27482) 2011-12-08 18:35:40 The Killer (Killer) 1824 (42393) 2011-12-08 23:19:57 #44 Somebody (Achidutzu) 1085 (14883) 2021-02-04 12:24:45 Click here to see all users that have solved this challenge.

First four in challenge Monoalphabetic substitution with camouflage — Part 2 Level II Start date: 2011-12-07 - 15:00 Rank (#48) User Achieved points (Global score) Solved at y-m-d - h:m:s Bart den Hartog (Bart13) 1824 (148936) 2011-12-08 21:15:01 Armin Krauss (argh) 1824 (206965) 2011-12-08 21:48:33 J. M. (jomandi) 1824 (113270) 2011-12-09 00:14:03 The Killer (Killer) 1824 (42393) 2011-12-09 00:25:47 #48 Somebody (Achidutzu) 1085 (14883) 2021-01-30 08:09:31 Click here to see all users that have solved this challenge.

First four in challenge Factorization Cipher — Part 2 Level II Start date: 2011-12-01 - 21:00 Rank (#140) User Achieved points (Global score) Solved at y-m-d - h:m:s Keith Randall (randall77) 2000 (31011) 2011-12-02 01:04:36 Seth Kintigh (DarkFibre) 2000 (79471) 2011-12-02 06:35:42 Armin Krauss (argh) 2000 (206965) 2011-12-02 12:04:41 J. M. (jomandi) 2000 (113270) 2011-12-02 14:05:10 #140 Eric (ExAstris) 1084 (54941) 2021-04-22 21:54:26 Click here to see all users that have solved this challenge.

First four in challenge Unconcealed RSA messages Level II Start date: 2011-11-02 - 08:15 Rank (#49) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 2000 (206965) 2011-11-02 16:49:59 J. M. (jomandi) 2000 (113270) 2011-11-03 01:58:19 Keith Randall (randall77) 1824 (31011) 2011-11-03 23:02:57 The Killer (Killer) 1725 (42393) 2011-11-04 23:01:43 #49 madness (madness) 1084 (71592) 2021-05-16 22:05:17 Click here to see all users that have solved this challenge.

First four in challenge Monoalphabetic substitution with camouflage — Part 1 Level I Start date: 2011-10-27 - 09:40 Rank (#60) User Achieved points (Global score) Solved at y-m-d - h:m:s Seth Kintigh (DarkFibre) 117 (79471) 2011-11-01 17:02:28 Bart den Hartog (Bart13) 117 (148936) 2011-11-01 19:39:08 J. M. (jomandi) 113 (113270) 2011-11-03 19:31:49 Wombat (Wombat) 101 (5822) 2012-01-07 12:27:58 #60 Michael Ammon (Ammonym) 100 (10120) 2021-04-26 23:52:55 Click here to see all users that have solved this challenge.

First four in challenge Factorization Cipher — Part 1 Level I Start date: 2011-10-17 - 18:42 Rank (#473) User Achieved points (Global score) Solved at y-m-d - h:m:s David (aki321) 200 (27482) 2011-10-17 19:11:41 Seth Kintigh (DarkFibre) 200 (79471) 2011-10-17 20:42:20 Michael Möller (michaelm) 200 (253196) 2011-10-17 20:55:05 Daniel Fretwell (fretty) 200 (30107) 2011-10-18 00:25:48 #472 JCR (Jericho) 100 (8470) 2021-05-03 13:13:45 Click here to see all users that have solved this challenge.

First four in challenge Turing Bombe Enigma I Level I Start date: 2011-10-17 - 18:36 Rank (#66) User Achieved points (Global score) Solved at y-m-d - h:m:s Seth Kintigh (DarkFibre) 200 (79471) 2011-10-17 20:20:23 Viktor (Veselovský) 200 (169444) 2011-10-18 02:18:54 David (aki321) 200 (27482) 2011-10-18 11:54:49 J. M. (jomandi) 200 (113270) 2011-10-18 15:36:10 #66 Eric (ExAstris) 100 (54941) 2021-05-05 19:39:16 Click here to see all users that have solved this challenge.

First four in challenge An Invisible Message Level I Start date: 2011-10-17 - 18:25 Rank (#56) User Achieved points (Global score) Solved at y-m-d - h:m:s Seth Kintigh (DarkFibre) 200 (79471) 2011-10-17 22:25:26 J. M. (jomandi) 200 (113270) 2011-10-18 15:35:46 Armin Krauss (argh) 150 (206965) 2011-10-18 19:36:47 Dano (Dano) 107 (14610) 2011-10-30 18:31:14 #56 sarah b (silva) 100 (47847) 2020-12-22 13:37:32 Click here to see all users that have solved this challenge.

First four in challenge Grille Cipher Level I Start date: 2011-10-14 - 18:00 Rank (#454) User Achieved points (Global score) Solved at y-m-d - h:m:s Daniel Fretwell (fretty) 200 (30107) 2011-10-14 18:18:57 Alexander Dockhorn (Descartes) 200 (1200) 2011-10-14 18:47:18 TURINGBOMBE (TBREAKER) 200 (10616) 2011-10-14 19:04:04 Viktor (Veselovský) 200 (169444) 2011-10-14 19:55:13 #453 JCR (Jericho) 100 (8470) 2021-05-03 18:30:43 Click here to see all users that have solved this challenge.

First four in challenge Double Columnar Transposition Level I Start date: 2011-10-12 - 14:03 Rank (#103) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 200 (206965) 2011-10-12 21:40:42 Michael Möller (michaelm) 200 (253196) 2011-10-12 21:53:10 J. M. (jomandi) 200 (113270) 2011-10-12 22:10:29 Seth Kintigh (DarkFibre) 200 (79471) 2011-10-13 05:35:12 #103 JCR (Jericho) 100 (8470) 2021-05-09 22:05:56 Click here to see all users that have solved this challenge.

First four in challenge The third ENIGMA M4 message Level X Start date: 2011-09-21 - 18:45 No one solved the challenge right now. Be the first!

First four in challenge Affine Codes / Modulo Arithmetic with N / Extended Euclid Level I Start date: 2011-09-09 - 11:24 Rank (#549) User Achieved points (Global score) Solved at y-m-d - h:m:s mischa (mmisc) 200 (22426) 2011-09-09 11:43:24 Roland Jansen (roland) 200 (17607) 2011-09-09 11:43:36 Daniel Fretwell (fretty) 200 (30107) 2011-09-09 12:12:29 dbuq (dbuq) 200 (22762) 2011-09-09 12:24:57 #548 JCR (Jericho) 100 (8470) 2021-05-03 12:50:46 Click here to see all users that have solved this challenge.

First four in challenge A really long number sequence Level II Start date: 2011-09-05 - 22:37 Rank (#112) User Achieved points (Global score) Solved at y-m-d - h:m:s The Killer (Killer) 2000 (42393) 2011-09-06 04:39:47 Armin Krauss (argh) 2000 (206965) 2011-09-06 14:07:29 J. M. (jomandi) 1824 (113270) 2011-09-06 23:40:27 Dano (Dano) 1725 (14610) 2011-09-08 18:15:50 #112 madness (madness) 1084 (71592) 2021-04-24 15:16:40 Click here to see all users that have solved this challenge.

First four in challenge Pigpen with a twist — Part 1 Level I Start date: 2011-09-05 - 22:17 Rank (#147) User Achieved points (Global score) Solved at y-m-d - h:m:s dbuq (dbuq) 200 (22762) 2011-09-05 22:17:01 Viktor (Veselovský) 200 (169444) 2011-09-05 22:17:01 Seth Kintigh (DarkFibre) 200 (79471) 2011-09-05 22:17:01 Roland Jansen (roland) 200 (17607) 2011-09-05 22:17:01 #147 JCR (Jericho) 100 (8470) 2021-05-09 15:07:11 Click here to see all users that have solved this challenge.

First four in challenge Pigpen with a twist — Part 3 Level II Start date: 2011-09-02 - 13:15 Rank (#36) User Achieved points (Global score) Solved at y-m-d - h:m:s J. M. (jomandi) 1576 (113270) 2011-09-08 00:00:20 Roland Jansen (roland) 1547 (17607) 2011-09-08 19:55:41 Viktor (Veselovský) 1485 (169444) 2011-09-11 14:50:01 Seth Kintigh (DarkFibre) 1288 (79471) 2011-10-20 21:40:54 #36 Random Dude (rnd) 1084 (103645) 2021-05-03 17:25:13 Click here to see all users that have solved this challenge.

First four in challenge Pigpen with a twist — Part 2 Level II Start date: 2011-09-02 - 13:11 Rank (#38) User Achieved points (Global score) Solved at y-m-d - h:m:s Seth Kintigh (DarkFibre) 1576 (79471) 2011-09-07 17:13:42 Armin Krauss (argh) 1576 (206965) 2011-09-07 19:46:18 David (aki321) 1456 (27482) 2011-09-13 19:37:31 Viktor (Veselovský) 1423 (169444) 2011-09-17 00:59:53 #38 Eric (ExAstris) 1084 (54941) 2021-04-29 23:42:22 Click here to see all users that have solved this challenge.

First four in challenge Modified Caesar Cipher Level I Start date: 2011-09-02 - 13:02 Rank (#218) User Achieved points (Global score) Solved at y-m-d - h:m:s David (aki321) 200 (27482) 2011-09-02 15:54:58 dbuq (dbuq) 200 (22762) 2011-09-02 16:05:13 Daniel Fretwell (fretty) 200 (30107) 2011-09-02 16:25:15 Michael Möller (michaelm) 200 (253196) 2011-09-02 20:39:42 #217 JCR (Jericho) 100 (8470) 2021-05-04 08:32:01 Click here to see all users that have solved this challenge.

First four in challenge Unusual encryption using a diophantine equation Level II Start date: 2011-09-02 - 12:57 Rank (#62) User Achieved points (Global score) Solved at y-m-d - h:m:s Daniel Fretwell (fretty) 2000 (30107) 2011-09-02 17:57:42 The Killer (Killer) 2000 (42393) 2011-09-02 22:53:54 Armin Krauss (argh) 2000 (206965) 2011-09-02 23:05:49 Seth Kintigh (DarkFibre) 2000 (79471) 2011-09-03 01:48:33 #62 Michael (FoM) 1084 (57794) 2021-04-16 00:18:03 Click here to see all users that have solved this challenge.

First four in challenge Digital Signatures: DSA with Medium Fields Level III Start date: 2011-09-02 - 12:23 No one solved the challenge right now. Be the first!

First four in challenge ADFGVX — Part 2 Level I Start date: 2011-08-15 - 17:14 Rank (#114) User Achieved points (Global score) Solved at y-m-d - h:m:s Seth Kintigh (DarkFibre) 200 (79471) 2011-08-15 22:52:12 Daniel Fretwell (fretty) 200 (30107) 2011-08-15 23:37:52 Viktor (Veselovský) 200 (169444) 2011-08-16 03:13:11 dbuq (dbuq) 200 (22762) 2011-08-16 11:32:37 #114 Claus Appelt (Konubixe) 100 (8066) 2021-05-16 19:40:17 Click here to see all users that have solved this challenge.

First four in challenge ADFGVX — Part 1 Level I Start date: 2011-08-15 - 17:11 Rank (#107) User Achieved points (Global score) Solved at y-m-d - h:m:s Daniel Fretwell (fretty) 200 (30107) 2011-08-16 00:59:40 Seth Kintigh (DarkFibre) 200 (79471) 2011-08-16 01:43:25 Viktor (Veselovský) 200 (169444) 2011-08-16 02:35:18 Armin Krauss (argh) 200 (206965) 2011-08-16 14:23:30 #107 Claus Appelt (Konubixe) 100 (8066) 2021-05-16 17:23:19 Click here to see all users that have solved this challenge.

First four in challenge RSA: Two different keys — same ciphertext Level II Start date: 2011-08-15 - 17:03 Rank (#151) User Achieved points (Global score) Solved at y-m-d - h:m:s Daniel Fretwell (fretty) 2000 (30107) 2011-08-15 19:34:25 Armin Krauss (argh) 2000 (206965) 2011-08-15 19:49:05 Viktor (Veselovský) 2000 (169444) 2011-08-15 20:15:53 Seth Kintigh (DarkFibre) 2000 (79471) 2011-08-15 20:37:50 #151 Enigmatic (Enigmatic) 1084 (11604) 2021-04-24 01:04:30 Click here to see all users that have solved this challenge.

First four in challenge Broadcasting and low exponent — RSA Attack Level II Start date: 2011-07-22 - 20:00 Rank (#217) User Achieved points (Global score) Solved at y-m-d - h:m:s Daniel Fretwell (fretty) 2000 (30107) 2011-07-22 20:34:43 mischa (mmisc) 2000 (22426) 2011-07-22 21:25:54 J. M. (jomandi) 2000 (113270) 2011-07-22 21:37:01 Seth Kintigh (DarkFibre) 2000 (79471) 2011-07-22 22:39:56 #217 m (umsyt) 1084 (9300) 2021-03-12 02:48:42 Click here to see all users that have solved this challenge.

First four in challenge Number Sequence — Part 2 Level I Start date: 2011-07-11 - 14:34 Rank (#2000) User Achieved points (Global score) Solved at y-m-d - h:m:s Martin Bauser (stef_the_chef) 200 (4329) 2011-07-11 15:25:33 Armin Krauss (argh) 200 (206965) 2011-07-11 18:06:01 Peter Mustermann (Gummiboot) 200 (60285) 2011-07-11 19:09:24 Seth Kintigh (DarkFibre) 200 (79471) 2011-07-11 19:36:48 #1998 _xlf1024 (_xlf1024) 100 (400) 2021-06-13 18:36:38 Click here to see all users that have solved this challenge.

First four in challenge Substitution Cipher with Non-Prefix Codes Level III Start date: 2011-06-15 - 11:00 Rank (#1) User Achieved points (Global score) Solved at y-m-d - h:m:s Peter Mustermann (Gummiboot) 13959 (60285) 2013-01-14 07:53:12

First four in challenge Music Code — Part 2 Level II Start date: 2011-05-17 - 10:00 Rank (#40) User Achieved points (Global score) Solved at y-m-d - h:m:s Hans Rudolf (mutabor) 1485 (3015) 2011-05-26 16:00:54 Wombat (Wombat) 1353 (5822) 2011-06-11 11:15:57 Seth Kintigh (DarkFibre) 1268 (79471) 2011-07-18 00:28:16 Martin Bauser (stef_the_chef) 1255 (4329) 2011-07-27 20:31:41 #40 sarah b (silva) 1084 (47847) 2020-10-26 13:54:03 Click here to see all users that have solved this challenge.

First four in challenge Music Code — Part 1 Level I Start date: 2011-05-17 - 10:00 Rank (#40) User Achieved points (Global score) Solved at y-m-d - h:m:s Hans Rudolf (mutabor) 110 (3015) 2011-05-26 14:24:25 Paula Olsen (paol) 110 (942) 2011-05-26 23:35:00 Sven Ge (Sven-from-de) 106 (2852) 2011-06-02 00:52:44 Wombat (Wombat) 104 (5822) 2011-06-11 11:13:21 #40 sarah b (silva) 100 (47847) 2020-10-26 13:33:44 Click here to see all users that have solved this challenge.

First four in challenge Kaskade-S/T — Part 5 Level II Start date: 2011-05-05 - 10:34 Rank (#10) User Achieved points (Global score) Solved at y-m-d - h:m:s J. M. (jomandi) 1247 (113270) 2011-07-23 19:19:04 Peter Mustermann (Gummiboot) 1146 (60285) 2012-08-15 17:17:35 Armin Krauss (argh) 1145 (206965) 2012-08-26 19:39:41 Bart den Hartog (Bart13) 1122 (148936) 2013-10-07 05:34:10 #10 D3d4lu5 (D3d4lu5) 1088 (363488) 2019-05-08 18:23:17 Click here to see all users that have solved this challenge.

First four in challenge Kaskade-S/T — Part 4 Level II Start date: 2011-05-05 - 10:30 No one solved the challenge right now. Be the first!

First four in challenge Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 2 Level II Start date: 2011-04-13 - 17:17 Rank (#12) User Achieved points (Global score) Solved at y-m-d - h:m:s Keith Randall (randall77) 1185 (31011) 2011-11-09 17:38:44 J. M. (jomandi) 1182 (113270) 2011-11-19 15:39:10 Viktor (Veselovský) 1179 (169444) 2011-12-04 02:39:48 Bart den Hartog (Bart13) 1133 (148936) 2013-01-27 23:02:55 #12 Eugene (lim0n) 1083 (178540) 2021-04-01 08:09:59 Click here to see all users that have solved this challenge.

First four in challenge Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 1 Level I Start date: 2011-04-07 - 00:00 Rank (#94) User Achieved points (Global score) Solved at y-m-d - h:m:s mischa (mmisc) 200 (22426) 2011-04-07 13:07:53 Armin Krauss (argh) 200 (206965) 2011-04-07 18:43:13 andrewl (andrewl) 150 (1810) 2011-04-08 17:29:54 Roland Jansen (roland) 114 (17607) 2011-04-13 12:30:56 #94 Marco Cinelli (Snap) 100 (37769) 2021-03-01 13:31:26 Click here to see all users that have solved this challenge.

First four in challenge Twelve-Year-Old Murder Case Level X Start date: 2011-04-07 - 00:00 No one solved the challenge right now. Be the first!

First four in challenge Cracking SHA1-Hashed Passwords Level II Start date: 2011-04-04 - 21:38 Rank (#508) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 2000 (206965) 2011-04-04 23:40:47 andrewl (andrewl) 1660 (1810) 2011-04-08 19:08:03 kyprizel (kyprizel) 1660 (20795) 2011-04-08 21:36:06 The Saint (The_Saint) 1613 (1613) 2011-04-09 19:23:00 #506 E01814058 (E01814058) 1082 (1082) 2021-06-16 13:38:30 Click here to see all users that have solved this challenge.

First four in challenge Lattice Part 1 Level II Start date: 2011-03-11 - 13:15 Rank (#28) User Achieved points (Global score) Solved at y-m-d - h:m:s Nobody (nobody) 1613 (42945) 2011-03-15 19:28:27 Armin Krauss (argh) 1576 (206965) 2011-03-16 14:20:53 Wolfgang Weisser (wowmyst) 1523 (33108) 2011-03-18 19:21:20 J. M. (jomandi) 1236 (113270) 2011-06-11 17:16:28 #28 Eugene (lim0n) 1084 (178540) 2020-08-06 13:54:24 Click here to see all users that have solved this challenge.

First four in challenge Kaskade-S/T — Part 1 Level I Start date: 2011-03-04 - 00:00 Rank (#102) User Achieved points (Global score) Solved at y-m-d - h:m:s mischa (mmisc) 200 (22426) 2011-03-04 23:40:28 Thomas Gonda (TomG) 133 (36291) 2011-03-06 14:25:26 Armin Krauss (argh) 120 (206965) 2011-03-08 13:04:08 FirstLast (TheRational) 108 (1753) 2011-03-15 19:48:16 #102 Michael Ammon (Ammonym) 100 (10120) 2021-04-14 00:57:02 Click here to see all users that have solved this challenge.

First four in challenge Kaskade-S/T — Part 2 Level II Start date: 2011-03-04 - 00:00 Rank (#50) User Achieved points (Global score) Solved at y-m-d - h:m:s mischa (mmisc) 1613 (22426) 2011-03-08 03:15:02 Armin Krauss (argh) 1613 (206965) 2011-03-08 18:26:50 Thomas Gonda (TomG) 1576 (36291) 2011-03-09 18:25:14 Christian Inci (ch100) 1398 (9253) 2011-03-21 16:38:35 #50 Gerd Wilts (gerdw) 1083 (50534) 2021-02-22 14:55:15 Click here to see all users that have solved this challenge.

First four in challenge Kaskade-S/T — Part 3 Level II Start date: 2011-03-04 - 00:00 Rank (#31) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 1613 (206965) 2011-03-08 11:25:24 Thomas Gonda (TomG) 1444 (36291) 2011-03-16 21:24:17 mischa (mmisc) 1272 (22426) 2011-05-01 03:25:02 J. M. (jomandi) 1216 (113270) 2011-07-06 01:33:39 #31 Gerd Wilts (gerdw) 1083 (50534) 2021-02-26 07:15:27 Click here to see all users that have solved this challenge.

First four in challenge Recovering the Private Key in the Fully Homomorphic Encryption Scheme Level III Start date: 2011-01-14 - 00:00 No one solved the challenge right now. Be the first!

First four in challenge Lunchtime Attack on the Fully Homomorphic Encryption Scheme Level II Start date: 2011-01-14 - 00:00 Rank (#44) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 2000 (206965) 2011-01-14 18:58:14 Nobody (nobody) 1824 (42945) 2011-01-15 20:51:56 Thomas Gonda (TomG) 1725 (36291) 2011-01-16 19:26:47 mischa (mmisc) 1324 (22426) 2011-02-16 22:47:37 #44 Mike (RogueRamblers) 1082 (75961) 2021-03-06 17:23:59 Click here to see all users that have solved this challenge.

First four in challenge Playfair Encryption Level I Start date: 2010-12-22 - 00:00 Rank (#107) User Achieved points (Global score) Solved at y-m-d - h:m:s Vincent (Bwian) 133 (552) 2010-12-24 04:03:59 Armin Krauss (argh) 113 (206965) 2010-12-29 19:12:56 Lukas (Kahla) 104 (4719) 2011-01-17 00:12:12 David (aki321) 103 (27482) 2011-01-23 15:31:00 #107 Claus Appelt (Konubixe) 100 (8066) 2021-05-24 19:26:25 Click here to see all users that have solved this challenge.

First four in challenge Original Caesar Cipher Level I Start date: 2010-12-15 - 00:00 Rank (#2837) User Achieved points (Global score) Solved at y-m-d - h:m:s Daniel Marschall (blackdrake) 200 (200) 2010-12-15 04:14:31 Armin Krauss (argh) 200 (206965) 2010-12-15 08:38:19 Thomas Gonda (TomG) 200 (36291) 2010-12-15 09:01:42 Petr Fišer (Fiisch) 200 (437) 2010-12-15 11:23:24 #2833 Larry (LarryX) 100 (200) 2021-06-15 00:11:51 Click here to see all users that have solved this challenge.

First four in challenge CMEA 1 Level II Start date: 2010-12-06 - 00:00 Rank (#42) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 1613 (206965) 2010-12-10 15:02:30 Nobody (nobody) 1286 (42945) 2011-01-24 10:53:04 Wolfgang Weisser (wowmyst) 1231 (33108) 2011-03-15 00:16:19 J. M. (jomandi) 1179 (113270) 2011-07-29 13:13:25 #42 madness (madness) 1082 (71592) 2021-04-24 16:34:29 Click here to see all users that have solved this challenge.

First four in challenge CMEA 2 Level III Start date: 2010-12-06 - 00:00 Rank (#27) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 17412 (206965) 2010-12-14 17:00:33 Wolfgang Weisser (wowmyst) 15101 (33108) 2011-03-15 20:30:10 J. M. (jomandi) 14472 (113270) 2011-08-07 11:09:20 Flip (Flip) 14396 (31107) 2011-09-07 18:30:19 #27 Eugene (lim0n) 13100 (178540) 2020-08-22 08:23:46 Click here to see all users that have solved this challenge.

First four in challenge Akelarre Part 1 Level II Start date: 2010-11-24 - 14:40 Rank (#10) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 1523 (206965) 2010-12-02 14:39:03 J. M. (jomandi) 1174 (113270) 2011-08-10 23:47:48 Jan Temme (JaT3) 1129 (11694) 2012-11-26 02:01:43 Viktor (Veselovský) 1126 (169444) 2013-01-18 19:16:55 #10 Eugene (lim0n) 1084 (178540) 2020-07-08 13:45:44 Click here to see all users that have solved this challenge.

First four in challenge Enigma Combinatorics Level I Start date: 2010-11-12 - 15:31 Rank (#96) User Achieved points (Global score) Solved at y-m-d - h:m:s Roadrunner (rr) 200 (12702) 2010-11-12 22:18:52 Armin Krauss (argh) 200 (206965) 2010-11-13 00:16:31 Ulrich Armbrüster (uarmbruester) 133 (7987) 2010-11-15 13:46:30 Dennis Walter (Lotus) 120 (6977) 2010-11-16 23:36:36 #96 Benjamin Bartl (arenas) 100 (6347) 2020-09-20 01:14:33 Click here to see all users that have solved this challenge.

First four in challenge One-Time Pad with Flaws Level I Start date: 2010-11-12 - 15:30 Rank (#298) User Achieved points (Global score) Solved at y-m-d - h:m:s Ilya Ozerov (ilya) 200 (20556) 2010-11-12 22:20:45 Armin Krauss (argh) 200 (206965) 2010-11-12 23:20:47 Roadrunner (rr) 200 (12702) 2010-11-13 11:41:23 Hans Schuell (hschuell) 150 (2194) 2010-11-13 23:49:54 #297 Julian (julian_38317) 100 (3973) 2021-06-20 16:25:44 Click here to see all users that have solved this challenge.

First four in challenge Hybrid Encryption I Level II Start date: 2010-11-02 - 00:00 Rank (#159) User Achieved points (Global score) Solved at y-m-d - h:m:s Nobody (nobody) 2000 (42945) 2010-11-02 22:36:17 Juan (kation) 1824 (6113) 2010-11-03 06:48:02 kyprizel (kyprizel) 1824 (20795) 2010-11-03 11:26:00 Thomas Schmucker (dg) 1824 (26066) 2010-11-03 19:20:13 #159 m (umsyt) 1082 (9300) 2021-03-12 03:14:44 Click here to see all users that have solved this challenge.

First four in challenge Purple 1 Level II Start date: 2010-10-27 - 00:00 Rank (#18) User Achieved points (Global score) Solved at y-m-d - h:m:s Peter Mustermann (Gummiboot) 1167 (60285) 2011-08-19 19:18:21 J. M. (jomandi) 1155 (113270) 2011-11-14 07:57:14 Seth Kintigh (DarkFibre) 1144 (79471) 2012-03-10 01:24:35 Luigi Tomelli (archstanton) 1118 (127538) 2013-07-20 17:56:20 #18 Em Doulgerakis (Greko) 1082 (193799) 2021-04-23 20:27:34 Click here to see all users that have solved this challenge.

First four in challenge Smartcard RSA Level II Start date: 2010-10-25 - 17:00 Rank (#71) User Achieved points (Global score) Solved at y-m-d - h:m:s Nobody (nobody) 2000 (42945) 2010-10-26 16:48:23 Cezary Glowacz (cezaryglowacz) 1824 (9995) 2010-10-27 11:47:29 Claude Laveaux (claude.laveaux) 1613 (14504) 2010-10-29 23:51:30 Christian (Etschupu) 1547 (31788) 2010-10-31 17:09:23 #71 Gerd Wilts (gerdw) 1082 (50534) 2021-02-14 17:52:06 Click here to see all users that have solved this challenge.

First four in challenge Molehunt (Part 3/3) Level II Start date: 2010-10-23 - 20:00 Rank (#80) User Achieved points (Global score) Solved at y-m-d - h:m:s Sebastian Steinmann (teodoc) 2000 (5594) 2010-10-24 00:33:45 Dennis Nolte (JokerX) 2000 (6377) 2010-10-24 14:50:54 Armin Krauss (argh) 1444 (206965) 2010-11-05 11:43:15 Roadrunner (rr) 1373 (12702) 2010-11-14 14:47:52 #80 Eric (ExAstris) 1082 (54941) 2021-04-22 03:10:55 Click here to see all users that have solved this challenge.

First four in challenge Molehunt (Part 2/3) Level I Start date: 2010-10-23 - 15:00 Rank (#137) User Achieved points (Global score) Solved at y-m-d - h:m:s Sebastian Steinmann (teodoc) 200 (5594) 2010-10-23 23:32:16 Dennis Nolte (JokerX) 200 (6377) 2010-10-24 14:50:18 Armin Krauss (argh) 120 (206965) 2010-10-27 22:45:14 Stefan Kühne (subROUTINE) 120 (3595) 2010-10-28 14:02:05 #137 JCR (Jericho) 100 (8470) 2021-05-05 13:14:45 Click here to see all users that have solved this challenge.

First four in challenge Molehunt (Part 1/3) Level I Start date: 2010-10-23 - 10:00 Rank (#145) User Achieved points (Global score) Solved at y-m-d - h:m:s Sebastian Steinmann (teodoc) 200 (5594) 2010-10-23 23:05:37 Dennis Nolte (JokerX) 150 (6377) 2010-10-24 14:48:09 Armin Krauss (argh) 120 (206965) 2010-10-27 21:41:55 Hannes Kremmer (HannesKremmer) 120 (932) 2010-10-27 21:49:12 #145 gordon (sir5) 100 (16181) 2021-05-06 08:58:06 Click here to see all users that have solved this challenge.

First four in challenge A modified homophonic cipher with reduced alphabets — Part 2 Level I Start date: 2010-10-21 - 19:51 Rank (#324) User Achieved points (Global score) Solved at y-m-d - h:m:s Roadrunner (rr) 200 (12702) 2010-10-22 00:14:55 mischa (mmisc) 200 (22426) 2010-10-22 01:30:47 Ralf Stephan (rwst) 200 (25229) 2010-10-22 10:45:12 Ian (blerko) 200 (200) 2010-10-22 12:06:23 #323 Robert (rcw8892) 100 (8716) 2021-05-16 18:42:08 Click here to see all users that have solved this challenge.

First four in challenge A modified homophonic cipher with reduced alphabets — Part 1 Level I Start date: 2010-10-21 - 19:50 Rank (#377) User Achieved points (Global score) Solved at y-m-d - h:m:s mischa (mmisc) 200 (22426) 2010-10-21 23:12:56 Roadrunner (rr) 200 (12702) 2010-10-21 23:42:46 Ralf Stephan (rwst) 200 (25229) 2010-10-22 10:55:58 un known (unknown) 200 (5466) 2010-10-22 15:36:00 #376 Robert (rcw8892) 100 (8716) 2021-05-16 18:08:21 Click here to see all users that have solved this challenge.

First four in challenge Caesar Encryption Level I Start date: 2010-10-21 - 19:49 Rank (#1351) User Achieved points (Global score) Solved at y-m-d - h:m:s slax (slax) 200 (333) 2010-10-21 23:02:24 Roadrunner (rr) 200 (12702) 2010-10-21 23:27:50 mischa (mmisc) 200 (22426) 2010-10-22 01:37:02 Ralf Stephan (rwst) 200 (25229) 2010-10-22 08:58:54 #1350 _xlf1024 (_xlf1024) 100 (400) 2021-06-13 18:42:03 Click here to see all users that have solved this challenge.

First four in challenge Letter from the Alleged Countess Julie von Ortenburg Level I Start date: 2010-10-14 - 13:30 Rank (#168) User Achieved points (Global score) Solved at y-m-d - h:m:s Nobody (nobody) 200 (42945) 2010-10-14 13:35:35 Simon Jakob (simon.jakob) 200 (18714) 2010-10-15 01:31:38 Roadrunner (rr) 133 (12702) 2010-10-17 01:04:32 ***** (JMK41) 133 (133) 2010-10-17 03:35:52 #168 Claus Appelt (Konubixe) 100 (8066) 2021-05-01 23:22:55 Click here to see all users that have solved this challenge.

First four in challenge Kryptos Level X Start date: 2010-10-14 - 13:30 No one solved the challenge right now. Be the first!

First four in challenge Not-so-Secret Message from Malawi — Part I (RSA) Level II Start date: 2010-10-14 - 13:30 Rank (#184) User Achieved points (Global score) Solved at y-m-d - h:m:s das (dasdas) 1725 (1925) 2010-10-17 12:25:10 Thomas Schmucker (dg) 1660 (26066) 2010-10-17 17:38:16 Cezary Glowacz (cezaryglowacz) 1660 (9995) 2010-10-17 21:51:03 kyprizel (kyprizel) 1660 (20795) 2010-10-18 06:51:50 #184 madness (madness) 1082 (71592) 2021-04-17 20:59:23 Click here to see all users that have solved this challenge.

First four in challenge Not-so-Secret Message from Malawi — Part II (ECC) Level II Start date: 2010-10-14 - 13:30 Rank (#37) User Achieved points (Global score) Solved at y-m-d - h:m:s Cezary Glowacz (cezaryglowacz) 1576 (9995) 2010-10-19 17:20:21 Ulrich Armbrüster (uarmbruester) 1414 (7987) 2010-10-29 20:08:00 Flip (Flip) 1222 (31107) 2011-02-04 00:26:45 Armin Krauss (argh) 1216 (206965) 2011-02-14 16:01:41 #37 madness (madness) 1082 (71592) 2021-04-10 18:06:39 Click here to see all users that have solved this challenge.

First four in challenge Notes of an Italian Soldier Level X Start date: 2010-10-14 - 13:30 Rank (#4) User Achieved points (Global score) Solved at y-m-d - h:m:s Armin Krauss (argh) 3000 (206965) 2013-02-18 19:59:00 Viktor (Veselovský) 800 (169444) 2013-05-04 22:57:00 J. M. (jomandi) 800 (113270) 2013-05-19 13:45:00 George Lasry (george4096) 800 (399565) 2013-12-12 15:07:29

First four in challenge Double Column Transposition Level X Start date: 2010-10-14 - 13:30 Rank (#2) User Achieved points (Global score) Solved at y-m-d - h:m:s George Lasry (george4096) 11000 (399565) 2013-11-26 17:23:24 Jim Gillogly (Scryer) 10000 (21260) 2013-12-31 13:58:23

First four in challenge Dorabella Level X Start date: 2010-10-14 - 13:30 No one solved the challenge right now. Be the first!

First four in challenge A Secret Message from Castle Mansfeld Level I Start date: 2010-10-14 - 13:30 Rank (#120) User Achieved points (Global score) Solved at y-m-d - h:m:s Nobody (nobody) 200 (42945) 2010-10-14 13:36:55 Simon Jakob (simon.jakob) 200 (18714) 2010-10-15 01:34:09 ./. (matudo) 133 (373) 2010-10-16 17:19:00 Zaproth Beeblebrox (chmhnk) 125 (356) 2010-10-17 15:01:19 #120 gordon (sir5) 100 (16181) 2021-04-19 07:22:47 Click here to see all users that have solved this challenge.

First four in challenge Classical Ciphers^3 Level I Start date: 2010-10-14 - 13:30 Rank (#169) User Achieved points (Global score) Solved at y-m-d - h:m:s Nobody (nobody) 200 (42945) 2010-10-14 13:35:59 Dennis Nolte (JokerX) 200 (6377) 2010-10-14 17:00:31 Simon Jakob (simon.jakob) 200 (18714) 2010-10-15 01:32:19 No you (lolwhat) 133 (2124) 2010-10-16 19:17:36 #169 Claus Appelt (Konubixe) 100 (8066) 2021-05-21 19:47:04 Click here to see all users that have solved this challenge.

First four in challenge Alice's Birthday Party (Part 1) Level II Start date: 2010-10-14 - 13:30 Rank (#279) User Achieved points (Global score) Solved at y-m-d - h:m:s Nobody (nobody) 2000 (42945) 2010-10-14 13:30:51 Dennis Nolte (JokerX) 1824 (6377) 2010-10-15 13:34:05 kyprizel (kyprizel) 1725 (20795) 2010-10-16 22:05:46 Nabb (Nabb) 1725 (13803) 2010-10-16 22:45:31 #278 Piyush Singh (spiyush19) 1082 (2082) 2021-03-18 09:08:50 Click here to see all users that have solved this challenge.

First four in challenge Alice's Birthday Party (Part 2) Level II Start date: 2010-10-14 - 13:30 Rank (#272) User Achieved points (Global score) Solved at y-m-d - h:m:s Nobody (nobody) 2000 (42945) 2010-10-14 13:31:45 kyprizel (kyprizel) 1725 (20795) 2010-10-16 20:00:25 Nabb (Nabb) 1725 (13803) 2010-10-16 23:25:58 Cezary Glowacz (cezaryglowacz) 1725 (9995) 2010-10-16 23:53:15 #271 m (umsyt) 1082 (9300) 2021-03-12 02:36:23 Click here to see all users that have solved this challenge.

First four in challenge D'Agapeyeff Level X Start date: 2010-10-14 - 13:30 No one solved the challenge right now. Be the first!

First four in challenge RSA with Special d Level III Start date: 2010-10-14 - 13:30 Rank (#23) User Achieved points (Global score) Solved at y-m-d - h:m:s Nobody (nobody) 17412 (42945) 2010-10-22 18:54:58 Christian (Etschupu) 16769 (31788) 2010-10-30 12:12:28 Ilya Ozerov (ilya) 16133 (20556) 2010-11-12 18:59:39 J. M. (jomandi) 14494 (113270)