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Challenges Hall-of-Fame

This page shows the Hall of Fame (CHoF) for all 341 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-2900 — Part 3

Level III
Start date: 2021-07-31 - 18:03

Rank (#2) User Achieved points (Global score) Solved at y-m-d - h:m:s

Scombes (jerva) 20000 (266541) 2021-08-01 09:36:13
George Lasry (george4096) 19236 (422251) 2021-08-02 13:04:44


First four in challenge SIGABA CSP-2900 — Part 2

Level II
Start date: 2021-07-31 - 17:58

Rank (#2) User Achieved points (Global score) Solved at y-m-d - h:m:s

Scombes (jerva) 2000 (266541) 2021-08-01 15:13:45
George Lasry (george4096) 1725 (422251) 2021-08-03 06:31:59


First four in challenge SIGABA CSP-2900 — Part 1

Level II
Start date: 2021-07-31 - 17:47

Rank (#2) User Achieved points (Global score) Solved at y-m-d - h:m:s

Scombes (jerva) 1824 (266541) 2021-08-02 01:47:14
George Lasry (george4096) 1725 (422251) 2021-08-03 09:42:56


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 (422251) 2021-06-01 21:12:15
Scombes (jerva) 20000 (266541) 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

Scombes (jerva) 1824 (266541) 2021-06-03 06:45:44
George Lasry (george4096) 1613 (422251) 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

Scombes (jerva) 2000 (266541) 2021-06-02 10:40:32
George Lasry (george4096) 1725 (422251) 2021-06-03 22:50:04


First four in challenge Wheatstone Cryptograph — Part 2

Level II
Start date: 2021-05-21 - 15:10

Rank (#4) User Achieved points (Global score) Solved at y-m-d - h:m:s

Eugene (lim0n) 2000 (195334) 2021-05-21 19:56:41
Kurt Gebauer (Yokozuna) 2000 (282608) 2021-05-22 01:51:39
George Lasry (george4096) 1547 (422251) 2021-05-27 21:18:02
sarah b (silva) 1324 (52424) 2021-06-23 15:32:31


First four in challenge Wheatstone Cryptograph — Part 1

Level I
Start date: 2021-04-21 - 19:17

Rank (#33) 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
#33 Antares (Antares) 101 (32880) 2021-07-19 22:12:10

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 (422251) 2021-02-19 14:58:08
Kurt Gebauer (Yokozuna) 1307 (282608) 2021-03-11 11:39:16
Eugene (lim0n) 1269 (195334) 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 (195334) 2021-01-30 17:18:00
Kurt Gebauer (Yokozuna) 2000 (282608) 2021-01-30 17:40:00
George Lasry (george4096) 1660 (422251) 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 (#17) 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 (195334) 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
#17 Antares (Antares) 100 (32880) 2021-07-19 23:33:25

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 (#21) 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 (195334) 2020-12-20 12:44:21
Em Doulgerakis (Greko) 111 (193799) 2020-12-27 19:25:00
#21 Antares (Antares) 100 (32880) 2021-07-19 22:52:24

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 (#6) 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 (195334) 2020-12-20 11:05:51
H. Lautenschlager (helmi) 1444 (57600) 2021-01-01 11:23:23
George Lasry (george4096) 1200 (422251) 2021-05-27 21:20:34
#6 George (Theofanidis) 1178 (132517) 2021-08-16 02:18:13

Click here to see all users that have solved this challenge.


First four in challenge The SZ42 Challenge — Part 8

Level II
Start date: 2020-10-31 - 16:06

Rank (#7) User Achieved points (Global score) Solved at y-m-d - h:m:s

Eugene (lim0n) 2000 (195334) 2020-10-31 20:54:38
Kurt Gebauer (Yokozuna) 2000 (282608) 2020-10-31 21:34:32
H. Lautenschlager (helmi) 2000 (57600) 2020-11-01 00:38:54
Snake (snk) 1456 (187783) 2020-11-11 21:46:53
#7 zuben c3 (zuben-c3) 1172 (44417) 2021-07-24 18:20:49

Click here to see all users that have solved this challenge.


First four in challenge Find the right route — Part 1

Level I
Start date: 2020-10-27 - 17:01

Rank (#52) 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
#51 j.h. (haegarq) 100 (15452) 2021-09-03 16:00:13

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 (#6) 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 (195334) 2020-10-28 06:31:49
George Lasry (george4096) 1353 (422251) 2020-11-21 17:18:37
H. Lautenschlager (helmi) 1333 (57600) 2020-11-26 19:24:05
#6 zuben c3 (zuben-c3) 1172 (44417) 2021-07-23 19:05:20

Click here to see all users that have solved this challenge.


First four in challenge The SZ42 Challenge — Part 6

Level II
Start date: 2020-10-02 - 20:09

Rank (#7) 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 (195334) 2020-10-03 14:07:02
Nicolas (nicosPavlov) 2000 (257791) 2020-10-03 16:38:41
H. Lautenschlager (helmi) 2000 (57600) 2020-10-03 17:00:18
#7 George (Theofanidis) 1167 (132517) 2021-07-28 21:08:45

Click here to see all users that have solved this challenge.


First four in challenge The SZ42 Challenge — Part 5

Level II
Start date: 2020-09-03 - 13:25

Rank (#8) User Achieved points (Global score) Solved at y-m-d - h:m:s

George Lasry (george4096) 2000 (422251) 2020-09-03 16:19:21
H. Lautenschlager (helmi) 2000 (57600) 2020-09-03 18:21:31
Eugene (lim0n) 2000 (195334) 2020-09-03 20:26:14
Nicolas (nicosPavlov) 2000 (257791) 2020-09-04 10:44:48
#8 George (Theofanidis) 1164 (132517) 2021-07-17 00:04:58

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 (#9) 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 (195334) 2020-08-30 12:42:34
H. Lautenschlager (helmi) 2000 (57600) 2020-08-30 12:53:38
George Lasry (george4096) 2000 (422251) 2020-08-30 17:19:16
#9 zuben c3 (zuben-c3) 1163 (44417) 2021-07-16 21:23:32

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 (#8) 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 (57600) 2020-08-16 11:31:06
Eugene (lim0n) 2000 (195334) 2020-08-16 12:35:37
#8 zuben c3 (zuben-c3) 1162 (44417) 2021-07-14 13:29:13

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 (#10) User Achieved points (Global score) Solved at y-m-d - h:m:s

George Lasry (george4096) 2000 (422251) 2020-08-05 17:05:39
Armin Krauss (argh) 2000 (206965) 2020-08-05 20:46:23
Eugene (lim0n) 2000 (195334) 2020-08-05 21:28:35
Dominik M. (Sgt. Pepper) 2000 (128575) 2020-08-05 23:18:08
#10 zuben c3 (zuben-c3) 1160 (44417) 2021-07-14 12:02:45

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 (#11) User Achieved points (Global score) Solved at y-m-d - h:m:s

Eugene (lim0n) 2000 (195334) 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
#11 George (Theofanidis) 1152 (132517) 2021-09-05 17:54:08

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 (#25) 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 (57600) 2020-07-16 14:42:10
#25 Antares (Antares) 1157 (32880) 2021-07-18 04:26:33

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 (#27) 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
#27 Antares (Antares) 100 (32880) 2021-07-20 19:33:23

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 (#38) 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 (195334) 2020-05-17 12:10:48
#38 DS (DS8279) 100 (34191) 2021-08-19 15:48:26

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 (256593) 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 (256593) 2020-05-10 20:53:41
Nicolas (nicosPavlov) 14822 (257791) 2020-09-15 14:25:59
Scombes (jerva) 14427 (266541) 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 (256593) 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 (256593) 2020-04-20 16:19:30
Kurt Gebauer (Yokozuna) 17893 (282608) 2020-04-20 21:51:42
George Lasry (george4096) 16705 (422251) 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 (56037) 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

Scombes (jerva) 14326 (266541) 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 (56037) 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

Scombes (jerva) 20000 (266541) 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 (195334) 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 (422251) 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

Scombes (jerva) 20000 (266541) 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

Scombes (jerva) 20000 (266541) 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

Scombes (jerva) 2000 (266541) 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 (#9) User Achieved points (Global score) Solved at y-m-d - h:m:s

Scombes (jerva) 2000 (266541) 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
#9 Michael Möller (michaelm) 1140 (256593) 2021-08-31 21:40:28

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 (195334) 2020-02-20 08:26:23
#19 Eric (ExAstris) 1147 (56037) 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 (195334) 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 (195334) 2020-01-15 11:18:08
George Lasry (george4096) 1824 (422251) 2020-01-16 00:47:13
#17 Eric (ExAstris) 1144 (56037) 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 (195334) 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 (52424) 2019-11-22 10:56:16
Bart den Hartog (Bart13) 1725 (148936) 2019-11-23 15:02:52
George Lasry (george4096) 1725 (422251) 2019-11-23 17:29:00
Snake (snk) 1725 (187783) 2019-11-23 21:47:29
#20 Eric (ExAstris) 1140 (56037) 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

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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

Scombes (jerva) 14126 (266541) 2020-12-29 18:50:16
George Lasry (george4096) 14125 (422251) 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 (422251) 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 (195334) 2019-08-26 12:30:26
#14 madness (madness) 1192 (71592) 2020-02-25 00:03:25

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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 (256593) 2019-08-21 23:36:41
Eugene (lim0n) 1824 (195334) 2019-08-22 12:59:50
#15 madness (madness) 1193 (71592) 2020-02-19 04:28:42

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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 (256593) 2020-01-27 22:15:31
Snake (snk) 1181 (187783) 2020-03-23 23:23:18
#7 Mike (RogueRamblers) 1132 (81614) 2021-06-21 01:26:25

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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 (256593) 2020-01-26 10:12:37
Snake (snk) 1181 (187783) 2020-03-22 20:17:10
#7 Mike (RogueRamblers) 1132 (81614) 2021-06-21 01:20:50

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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 (256593) 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 Scombes (jerva) 1143 (266541) 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 (#6) 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 (256593) 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
#6 Mike (RogueRamblers) 1130 (81614) 2021-07-18 02:40:07

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First four in challenge The T52 Sturgeon Challenge — Part 8

Level II
Start date: 2019-08-10 - 17:31

Rank (#8) 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 (256593) 2020-01-22 21:11:55
Snake (snk) 1181 (187783) 2020-03-22 13:03:26
#8 H. Lautenschlager (helmi) 1130 (57600) 2021-07-26 12:32:24

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First four in challenge The T52 Sturgeon Challenge — Part 7

Level II
Start date: 2019-08-10 - 17:30

Rank (#6) 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
#6 Mike (RogueRamblers) 1131 (81614) 2021-07-04 23:26:23

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First four in challenge The T52 Sturgeon Challenge — Part 6

Level II
Start date: 2019-08-10 - 17:30

Rank (#6) 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
#6 Michael Möller (michaelm) 1128 (256593) 2021-08-23 20:16:44

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First four in challenge The T52 Sturgeon Challenge — Part 5

Level II
Start date: 2019-08-10 - 17:30

Rank (#6) 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
#6 Michael Möller (michaelm) 1129 (256593) 2021-08-05 20:35:50

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First four in challenge The T52 Sturgeon Challenge — Part 4

Level II
Start date: 2019-07-22 - 23:20

Rank (#10) 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
#10 Mike (RogueRamblers) 1130 (81614) 2021-07-07 03:17:55

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First four in challenge The T52 Sturgeon Challenge — Part 3

Level II
Start date: 2019-07-22 - 23:17

Rank (#12) 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
#12 George (Theofanidis) 1130 (132517) 2021-06-30 11:28:23

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First four in challenge The T52 Sturgeon Challenge — Part 2

Level II
Start date: 2019-07-22 - 23:15

Rank (#15) 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
#15 zuben c3 (zuben-c3) 1127 (44417) 2021-08-25 21:11:59

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First four in challenge The T52 Sturgeon Challenge — Part 1

Level II
Start date: 2019-07-13 - 23:11

Rank (#16) 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
#16 zuben c3 (zuben-c3) 1127 (44417) 2021-08-19 22:35:23

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First four in challenge The Vatican Challenge — Part 5

Level X
Start date: 2019-07-07 - 20:50

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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

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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

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First four in challenge Homophonic Encryption — Part 4

Level II
Start date: 2019-05-08 - 21:31

Rank (#29) 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 (422251) 2019-05-09 20:48:39
#29 zuben c3 (zuben-c3) 1127 (44417) 2021-06-29 10:57:09

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First four in challenge Homophonic Encryption — Part 3

Level II
Start date: 2019-05-08 - 21:30

Rank (#30) 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
#30 zuben c3 (zuben-c3) 1127 (44417) 2021-06-28 23:51:25

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First four in challenge Homophonic Encryption — Part 2

Level II
Start date: 2019-05-08 - 21:30

Rank (#31) User Achieved points (Global score) Solved at y-m-d - h:m:s

George Lasry (george4096) 1725 (422251) 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
#31 zuben c3 (zuben-c3) 1127 (44417) 2021-06-28 23:18:49

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First four in challenge Homophonic Encryption — Part 1

Level II
Start date: 2019-05-04 - 15:22

Rank (#36) 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
#36 zuben c3 (zuben-c3) 1126 (44417) 2021-06-28 20:28:21

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First four in challenge Handycipher made in love — Part 1

Level II
Start date: 2019-02-16 - 12:29

Rank (#23) 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 (256593) 2019-02-16 18:53:09
George Lasry (george4096) 2000 (422251) 2019-02-16 21:36:16
#23 Alain Millecam (Vadrusz) 1121 (5189) 2021-09-06 02:59:14

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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 (422251) 2019-02-16 21:43:46
#28 Eric (ExAstris) 1126 (56037) 2021-04-21 22:27:39

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First four in challenge Cryptanalysis Hacking Puzzles — Part 2

Level I
Start date: 2019-01-09 - 14:10

Rank (#148) 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 (52424) 2019-01-09 20:37:52
Alain Collignon (vexilla72) 200 (123666) 2019-01-10 08:00:54
#146 Nicole (nicole.silva) 100 (600) 2021-09-10 04:53:12

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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

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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 (195334) 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

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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

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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 (256593) 2018-09-25 22:32:51
Kurt Gebauer (Yokozuna) 200 (282608) 2018-09-26 02:53:02
#134 Claus Appelt (Konubixe) 100 (9647) 2021-05-04 20:58:42

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First four in challenge Modular Sequences

Level I
Start date: 2018-09-25 - 14:19

Rank (#58) 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
#57 Antares (Antares) 100 (32880) 2021-07-19 18:48:42

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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

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First four in challenge Fastest in the West

Level II
Start date: 2018-06-12 - 13:24

Rank (#31) 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
#31 Antares (Antares) 1114 (32880) 2021-07-12 20:39:35

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First four in challenge Summer Job

Level II
Start date: 2018-06-12 - 13:16

Rank (#47) 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
#47 thatbusybeaver (thatbusybeaver) 1114 (12456) 2021-07-29 20:41:25

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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 (132517) 2018-10-06 20:53:41
Michael Möller (michaelm) 1176 (256593) 2019-01-02 09:55:59
D3d4lu5 (D3d4lu5) 1138 (363488) 2019-11-28 19:27:00
Eugene (lim0n) 1115 (195334) 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 (57600) 2018-04-18 20:29:36
Viktor (Veselovský) 200 (169444) 2018-04-18 20:31:10
#100 George Lasry (george4096) 100 (422251) 2021-06-11 21:26:45

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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 (#56) User Achieved points (Global score) Solved at y-m-d - h:m:s

H. Lautenschlager (helmi) 2000 (57600) 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
#56 Antares (Antares) 1111 (32880) 2021-07-18 05:51:46

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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 (56037) 2021-05-18 18:53:31

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First four in challenge Advent Challenge — Part 4

Level II
Start date: 2017-12-21 - 17:06

Rank (#37) 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 (256593) 2017-12-21 19:14:17
Kurt Gebauer (Yokozuna) 2000 (282608) 2017-12-21 19:56:48
Scombes (jerva) 2000 (266541) 2017-12-21 22:27:59
#37 Silvia Kortmann (mikinsget) 1110 (24027) 2021-07-22 12:16:41

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First four in challenge AES ECB Wrong Encoding

Level II
Start date: 2017-12-16 - 19:21

Rank (#21) 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
#21 DS (DS8279) 1109 (34191) 2021-08-17 21:58:26

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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

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First four in challenge Advent-Challenge — Part 1

Level I
Start date: 2017-12-08 - 19:24

Rank (#396) 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 (256593) 2017-12-08 20:27:32
HolgerK (HolgerK) 200 (25776) 2017-12-08 20:51:53
H. Lautenschlager (helmi) 200 (57600) 2017-12-08 21:06:49
#394 nyx19 (nyx19) 100 (700) 2021-09-06 19:36:40

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First four in challenge Number Sequence — Part 9

Level I
Start date: 2017-11-16 - 17:43

Rank (#103) 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 (57600) 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
#102 Claus Appelt (Konubixe) 100 (9647) 2021-09-05 00:03:25

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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 (#4) 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 (256593) 2018-04-24 07:26:39
D3d4lu5 (D3d4lu5) 1113 (363488) 2020-12-29 19:34:27
Eugene (lim0n) 1108 (195334) 2021-07-18 14:28:10


First four in challenge ElsieFour — Part 1

Level III
Start date: 2017-10-03 - 06:37

Rank (#4) User Achieved points (Global score) Solved at y-m-d - h:m:s

Scombes (jerva) 14436 (266541) 2018-06-18 22:14:19
Michael Möller (michaelm) 14182 (256593) 2018-10-29 13:09:48
D3d4lu5 (D3d4lu5) 13586 (363488) 2021-01-04 19:14:20
Eugene (lim0n) 13512 (195334) 2021-07-20 12:27:20


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 (256593) 2017-07-29 12:39:20
Kurt Gebauer (Yokozuna) 1186 (282608) 2018-01-22 18:16:47
George Lasry (george4096) 1156 (422251) 2018-07-08 22:27:49
#6 D3d4lu5 (D3d4lu5) 1131 (363488) 2019-05-19 12:39:50

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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 (195334) 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

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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

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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 (422251) 2017-05-31 11:00:46
Michael Möller (michaelm) 14129 (256593) 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 (422251) 2017-05-28 23:32:02
Michael Möller (michaelm) 14117 (256593) 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 (422251) 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

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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

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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 (422251) 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

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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 (256593) 2016-08-14 17:29:02
George Lasry (george4096) 1161 (422251) 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 (256593) 2016-07-28 16:36:55
Alain (Integral) 1310 (207924) 2016-08-06 16:25:46
George Lasry (george4096) 1161 (422251) 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 (256593) 2016-07-13 21:09:45
Alain (Integral) 1310 (207924) 2016-08-06 14:10:50
George Lasry (george4096) 1161 (422251) 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 (422251) 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 (256593) 2017-02-13 22:37:52
George Lasry (george4096) 14276 (422251) 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 (256593) 2017-02-27 14:57:16
George Lasry (george4096) 14276 (422251) 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 (256593) 2016-10-03 10:57:55
George Lasry (george4096) 14276 (422251) 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 (256593) 2016-10-14 13:50:17
George Lasry (george4096) 14276 (422251) 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 (422251) 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

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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

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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

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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 (256593) 2016-03-21 22:09:24
#43 Michael Ammon (Ammonym) 100 (10120) 2021-04-20 22:23:26

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First four in challenge New Year's Greetings — Part 1

Level I
Start date: 2016-03-21 - 09:48

Rank (#47) 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 (256593) 2016-03-21 21:28:11
#47 Silvia Kortmann (mikinsget) 100 (24027) 2021-07-22 12:11:25

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First four in challenge Image Noise

Level I
Start date: 2015-11-20 - 20:26

Rank (#120) 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
#120 thatbusybeaver (thatbusybeaver) 100 (12456) 2021-07-29 04:59:44

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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 (9647) 2021-05-07 23:23:21

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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 (56037) 2021-05-10 00:28:29

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First four in challenge Number Sequence — Part 8

Level I
Start date: 2015-09-14 - 08:54

Rank (#350) 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 (57600) 2015-09-14 13:31:53
#349 Alain Millecam (Vadrusz) 100 (5189) 2021-08-19 06:31:35

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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

Scombes (jerva) 1378 (266541) 2015-09-13 15:43:29
J-L Morel (Rossignol) 1143 (42130) 2017-01-19 15:27:30
George Lasry (george4096) 1129 (422251) 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

Scombes (jerva) 1378 (266541) 2015-09-12 21:15:06
J-L Morel (Rossignol) 1143 (42130) 2017-01-19 15:23:12
George Lasry (george4096) 1129 (422251) 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

Scombes (jerva) 1378 (266541) 2015-09-12 21:12:42
J-L Morel (Rossignol) 1143 (42130) 2017-01-19 15:14:20
George Lasry (george4096) 1129 (422251) 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 (#15) 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
#15 Eric (ExAstris) 1096 (56037) 2021-06-24 02:19:58

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First four in challenge Double-Column Transposition/Granit — Part 3

Level II
Start date: 2015-07-01 - 18:23

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First four in challenge Double-Column Transposition/Granit — Part 2

Level II
Start date: 2015-07-01 - 18:21

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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
Scombes (jerva) 1444 (266541) 2015-05-26 08:31:39
#14 Random Dude (rnd) 1106 (103645) 2019-06-15 03:11:22

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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

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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

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First four in challenge A hidden word — Part 2

Level I
Start date: 2015-04-16 - 16:47

Rank (#97) User Achieved points (Global score) Solved at y-m-d - h:m:s

H. Lautenschlager (helmi) 200 (57600) 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
#97 Antares (Antares) 100 (32880) 2021-07-12 20:03:56

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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 (256593) 2015-10-31 18:28:20
George Lasry (george4096) 1126 (422251) 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 (256593) 2015-10-23 09:07:20
George Lasry (george4096) 1126 (422251) 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 (256593) 2015-09-27 11:51:38
George Lasry (george4096) 1126 (422251) 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 (#83) 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 (57600) 2015-03-23 23:26:20
Noah (Fridax2000) 133 (755) 2015-03-25 19:35:30
#83 alice (bestwishes) 100 (10270) 2021-06-24 10:17:24

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First four in challenge Number Sequence — Part 6

Level I
Start date: 2015-03-23 - 11:49

Rank (#142) 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
#141 Alain Millecam (Vadrusz) 100 (5189) 2021-08-19 06:28:46

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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 (256593) 2015-09-23 19:08:45
Em Doulgerakis (Greko) 13977 (193799) 2016-09-13 10:59:28
George Lasry (george4096) 13775 (422251) 2017-05-27 02:00:58
#6 D3d4lu5 (D3d4lu5) 13529 (363488) 2018-11-01 21:36:05

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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 (256593) 2015-09-20 13:16:49
Em Doulgerakis (Greko) 1140 (193799) 2016-09-06 10:35:51
George Lasry (george4096) 1125 (422251) 2017-05-27 01:48:16
#7 Random Dude (rnd) 1104 (103645) 2019-07-21 17:29:33

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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 (256593) 2015-09-19 21:09:57
George Lasry (george4096) 1125 (422251) 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 (#26) 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 (256593) 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
#26 Eugene (lim0n) 1092 (195334) 2021-08-21 16:42:10

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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 (256593) 2014-12-27 08:15:48
#57 Michael (FoM) 1094 (57794) 2021-04-17 14:26:20

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First four in challenge M-138 — Part 2

Level II
Start date: 2014-12-24 - 00:31

Rank (#125) 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
#125 Silvia Kortmann (mikinsget) 1093 (24027) 2021-07-31 11:47:56

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First four in challenge M-138 — Part 1

Level I
Start date: 2014-12-24 - 00:28

Rank (#200) 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
#200 Matt (mochiorochi) 100 (1786) 2021-08-18 18:57:19

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First four in challenge The Last Note

Level I
Start date: 2014-09-22 - 22:13

Rank (#83) 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
#83 Alain Millecam (Vadrusz) 100 (5189) 2021-08-12 18:35:25

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First four in challenge Heartbleed — Part 3

Level II
Start date: 2014-08-28 - 14:35

Rank (#33) 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 (57600) 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
#33 E01814058 (E01814058) 1092 (11351) 2021-06-24 10:57:45

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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 (57600) 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 (195334) 2019-10-06 16:45:42

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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 (57600) 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

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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 (132517) 2014-11-05 13:45:03
#8 Mir Dim (mir0soft) 1096 (79760) 2020-03-11 08:04:32

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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 (56037) 2021-05-02 05:59:17

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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

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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 (132517) 2014-05-05 20:22:45
#41 madness (madness) 1091 (71592) 2021-04-12 15:42:57

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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

Scombes (jerva) 14283 (266541) 2015-03-10 22:57:57
George Lasry (george4096) 13594 (422251) 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
Scombes (jerva) 1165 (266541) 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

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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

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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

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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

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First four in challenge Enigma Messages with Repeated Letters — Part 5

Level I
Start date: 2014-03-05 - 16:04

Rank (#73) 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 (57600) 2014-03-05 20:15:51
Kurt Gebauer (Yokozuna) 200 (282608) 2014-03-05 20:32:05
#73 Somebody (Achidutzu) 100 (16867) 2021-08-25 19:40:45

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First four in challenge Enigma Messages with Repeated Letters — Part 4

Level I
Start date: 2014-03-05 - 16:03

Rank (#68) 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
#68 Somebody (Achidutzu) 100 (16867) 2021-08-25 19:36:38

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First four in challenge Enigma Messages with Repeated Letters — Part 3

Level I
Start date: 2014-03-05 - 16:02

Rank (#76) 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
#76 Somebody (Achidutzu) 100 (16867) 2021-08-16 08:32:34

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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 (#76) 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
#76 Somebody (Achidutzu) 100 (16867) 2021-08-16 08:07:42

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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 (9647) 2021-06-02 22:20:43

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First four in challenge Enigma Messages with Repeated Letters — Part 1

Level I
Start date: 2013-09-26 - 15:05

Rank (#164) 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 (57600) 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
#164 Claus Appelt (Konubixe) 100 (9647) 2021-08-30 20:53:05

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First four in challenge Hill Cipher with Sudoku Key

Level I
Start date: 2013-09-04 - 16:27

Rank (#87) 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 (132517) 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
#87 Somebody (Achidutzu) 100 (16867) 2021-07-18 18:52:44

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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

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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 (56037) 2021-05-09 02:27:58

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First four in challenge RSA Factoring Challenge: RSA-704

Level II
Start date: 2013-07-31 - 16:34

Rank (#55) 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
#53 Claus Appelt (Konubixe) 0 (9647) 2021-09-12 21:49:40

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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 (132517) 2013-06-07 05:16:04
#30 Mike (RogueRamblers) 1093 (81614) 2019-11-16 01:01:12

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First four in challenge Snow White and the seven dwarfs

Level I
Start date: 2013-04-20 - 11:23

Rank (#279) 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 (57600) 2013-04-20 13:56:40
Viktor (Veselovský) 200 (169444) 2013-04-20 14:49:10
#279 Antares (Antares) 100 (32880) 2021-07-09 17:46:25

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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 (195334) 2020-07-29 16:01:07

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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 (422251) 2013-10-07 04:33:16
Em Doulgerakis (Greko) 1186 (193799) 2013-10-19 17:49:39
#12 Eugene (lim0n) 1091 (195334) 2020-04-24 18:32:49

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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 (56037) 2021-05-28 04:47:11

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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 (57600) 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 (9647) 2021-05-31 23:34:40

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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 (195334) 2020-07-27 17:05:04

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First four in challenge Multilingual Monoalphabetic Substitution

Level I
Start date: 2013-01-30 - 14:27

Rank (#72) 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
#72 Claus Appelt (Konubixe) 100 (9647) 2021-09-12 21:32:57

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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

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First four in challenge Enigma Messages

Level I
Start date: 2013-01-23 - 15:32

Rank (#73) 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
#73 Somebody (Achidutzu) 100 (16867) 2021-09-19 13:12:24

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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 (9647) 2021-05-24 19:48:46

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First four in challenge A hidden word

Level I
Start date: 2013-01-06 - 14:32

Rank (#781) 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
#780 Nicole (nicole.silva) 100 (600) 2021-09-10 03:51:22

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First four in challenge Strange Message from Thessaloniki

Level I
Start date: 2012-12-10 - 15:10

Rank (#46) 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
#46 Antares (Antares) 100 (32880) 2021-07-20 19:26:15

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First four in challenge Recycled One-Time Pad

Level I
Start date: 2012-11-20 - 16:48

Rank (#63) 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 (57600) 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
#63 Antares (Antares) 100 (32880) 2021-07-20 00:49:24

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First four in challenge Letter to the Templars — Part 3

Level II
Start date: 2012-10-09 - 15:00

Rank (#684) 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
#683 et2 (theghost2) 1085 (1485) 2021-09-15 23:37:05

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First four in challenge BCR code (Book-Caesar-RSA)

Level II
Start date: 2012-09-12 - 18:35

Rank (#70) 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
#70 DS (DS8279) 1085 (34191) 2021-08-16 19:10:21

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First four in challenge Beaver Code

Level I
Start date: 2012-08-13 - 20:12

Rank (#1133) 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 (57600) 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
#1132 Phil (Believing) 100 (1686) 2021-08-26 11:59:12

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First four in challenge Letter to the Templars — Part 2

Level I
Start date: 2012-07-30 - 20:10

Rank (#796) User Achieved points (Global score) Solved at y-m-d - h:m:s

H. Lautenschlager (helmi) 200 (57600) 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
#795 Phil (Believing) 100 (1686) 2021-08-26 12:54:33

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First four in challenge Letter to the Templars — Part 1

Level I
Start date: 2012-07-16 - 21:08

Rank (#989) 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
#988 nyx19 (nyx19) 100 (700) 2021-09-06 17:49:49

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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

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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 (56037) 2021-05-30 19:04:55

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First four in challenge Keyshanc — Part 2

Level II
Start date: 2012-05-21 - 20:50

Rank (#36) 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
#36 sarah b (silva) 1084 (52424) 2021-09-16 11:38:35

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First four in challenge Keyshanc — Part 1

Level II
Start date: 2012-05-21 - 20:46

Rank (#46) 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
#46 sarah b (silva) 1084 (52424) 2021-09-15 20:15:11

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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 (15452) 2017-07-26 16:56:19

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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

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First four in challenge Number Sequence — Part 4

Level I
Start date: 2012-04-18 - 19:25

Rank (#784) 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
#782 Arno (gonghengjie) 100 (500) 2021-09-14 09:51:10

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First four in challenge ¿No Hablas Español? No problemo!

Level I
Start date: 2012-04-18 - 19:19

Rank (#143) 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
#143 Julian (julian_38317) 100 (5154) 2021-07-19 21:12:09

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First four in challenge Number Sequence — Part 3

Level I
Start date: 2012-03-30 - 22:49

Rank (#950) 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
#948 Arno (gonghengjie) 100 (500) 2021-09-14 09:48:51

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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 (9647) 2021-05-24 16:59:52

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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 (195334) 2021-01-23 13:01:51

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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

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First four in challenge Partial Key Exposure with RSA — Part 1

Level II
Start date: 2012-02-11 - 13:20

Rank (#82) 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
#82 Antares (Antares) 1084 (32880) 2021-07-10 12:58:27

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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

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First four in challenge RSA Factoring Challenge: RSA-500

Level III
Start date: 2012-02-07 - 12:11

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First four in challenge RSA Factoring Challenge: RSA-490

Level III
Start date: 2012-02-07 - 12:10

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First four in challenge RSA Factoring Challenge: RSA-480

Level III
Start date: 2012-02-07 - 12:09

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First four in challenge RSA Factoring Challenge: RSA-470

Level III
Start date: 2012-02-07 - 12:08

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First four in challenge RSA Factoring Challenge: RSA-1536

Level III
Start date: 2012-02-07 - 12:07

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First four in challenge RSA Factoring Challenge: RSA-460

Level III
Start date: 2012-02-07 - 12:06

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First four in challenge RSA Factoring Challenge: RSA-450

Level III
Start date: 2012-02-07 - 12:05

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First four in challenge RSA Factoring Challenge: RSA-440

Level III
Start date: 2012-02-07 - 12:04

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First four in challenge RSA Factoring Challenge: RSA-430

Level III
Start date: 2012-02-07 - 12:03

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First four in challenge RSA Factoring Challenge: RSA-420

Level III
Start date: 2012-02-07 - 12:02

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First four in challenge RSA Factoring Challenge: RSA-410

Level III
Start date: 2012-02-07 - 12:01

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First four in challenge RSA Factoring Challenge: RSA-400

Level III
Start date: 2012-02-07 - 12:00

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First four in challenge RSA Factoring Challenge: RSA-390

Level III
Start date: 2012-02-07 - 11:59

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First four in challenge RSA Factoring Challenge: RSA-380

Level III
Start date: 2012-02-07 - 11:58

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First four in challenge RSA Factoring Challenge: RSA-370

Level III
Start date: 2012-02-07 - 11:57

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First four in challenge RSA Factoring Challenge: RSA-360

Level III
Start date: 2012-02-07 - 11:55

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First four in challenge RSA Factoring Challenge: RSA-350

Level III
Start date: 2012-02-07 - 11:21

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First four in challenge RSA Factoring Challenge: RSA-340

Level III
Start date: 2012-02-07 - 11:19

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First four in challenge RSA Factoring Challenge: RSA-330

Level III
Start date: 2012-02-07 - 11:18

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First four in challenge RSA Factoring Challenge: RSA-320

Level III
Start date: 2012-02-07 - 11:16

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First four in challenge RSA Factoring Challenge: RSA-310

Level III
Start date: 2012-02-07 - 11:15

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First four in challenge RSA Factoring Challenge: RSA-1024

Level III
Start date: 2012-02-07 - 11:13

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First four in challenge RSA Factoring Challenge: RSA-309

Level III
Start date: 2012-02-07 - 11:11

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First four in challenge RSA Factoring Challenge: RSA-300

Level III
Start date: 2012-02-07 - 11:09

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First four in challenge RSA Factoring Challenge: RSA-290

Level III
Start date: 2012-02-07 - 11:07

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First four in challenge RSA Factoring Challenge: RSA-280

Level III
Start date: 2012-02-07 - 11:05

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First four in challenge RSA Factoring Challenge: RSA-896

Level III
Start date: 2012-02-07 - 11:04

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First four in challenge RSA Factoring Challenge: RSA-270

Level III
Start date: 2012-02-07 - 11:02

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First four in challenge RSA Factoring Challenge: RSA-260

Level III
Start date: 2012-02-07 - 10:50

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First four in challenge RSA Factoring Challenge: RSA-250

Level III
Start date: 2012-02-07 - 10:48

Rank (#16) User Achieved points (Global score) Solved at y-m-d - h:m:s

George (Theofanidis) 0 (132517) 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
#16 Lane Williams (planetlane) 0 (34637) 2021-09-02 19:57:24

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First four in challenge RSA Factoring Challenge: RSA-240

Level III
Start date: 2012-02-07 - 10:47

Rank (#17) 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 (132517) 2019-12-15 22:40:32
Antares (Antares) 0 (32880) 2020-03-02 11:00:19
#16 Lane Williams (planetlane) 0 (34637) 2021-09-02 19:48:00

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First four in challenge RSA Factoring Challenge: RSA-232

Level III
Start date: 2012-02-07 - 10:45

Rank (#15) User Achieved points (Global score) Solved at y-m-d - h:m:s

George (Theofanidis) 0 (132517) 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
#15 Lane Williams (planetlane) 0 (34637) 2021-09-02 20:01:00

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First four in challenge RSA Factoring Challenge: RSA-230

Level II
Start date: 2012-02-07 - 10:43

Rank (#28) 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 (132517) 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
#26 Lane Williams (planetlane) 0 (34637) 2021-09-02 19:45:43

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First four in challenge RSA Factoring Challenge: RSA-220

Level II
Start date: 2012-02-07 - 10:42

Rank (#31) 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
#30 Lane Williams (planetlane) 0 (34637) 2021-09-02 19:42:20

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First four in challenge RSA Factoring Challenge: RSA-210

Level II
Start date: 2012-02-07 - 10:30

Rank (#47) 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
#46 Claus Appelt (Konubixe) 0 (9647) 2021-09-06 21:10:19

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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 (#75) 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
#75 DS (DS8279) 1084 (34191) 2021-08-14 14:26:28

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First four in challenge Factorization Cipher — Part 3

Level II
Start date: 2012-01-06 - 13:10

Rank (#90) 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
#90 Erich (ErichSt) 1084 (12861) 2021-07-20 18:29:14

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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 (16867) 2021-02-17 14:53:53

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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 (16867) 2021-02-04 12:24:45

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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 (16867) 2021-01-30 08:09:31

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First four in challenge Factorization Cipher — Part 2

Level II
Start date: 2011-12-01 - 21:00

Rank (#144) 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
#144 Jeff (Fountain) 1083 (10372) 2021-08-13 22:21:08

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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

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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

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First four in challenge Factorization Cipher — Part 1

Level I
Start date: 2011-10-17 - 18:42

Rank (#479) 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 (256593) 2011-10-17 20:55:05
Daniel Fretwell (fretty) 200 (30107) 2011-10-18 00:25:48
#478 nyx19 (nyx19) 100 (700) 2021-09-06 19:29:21

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First four in challenge Turing Bombe Enigma I

Level I
Start date: 2011-10-17 - 18:36

Rank (#68) 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
#68 Somebody (Achidutzu) 100 (16867) 2021-09-01 20:11:24

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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 (52424) 2020-12-22 13:37:32

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First four in challenge Grille Cipher

Level I
Start date: 2011-10-14 - 18:00

Rank (#459) 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
#458 Alain Millecam (Vadrusz) 100 (5189) 2021-08-11 15:07:54

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First four in challenge Double Columnar Transposition

Level I
Start date: 2011-10-12 - 14:03

Rank (#105) 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 (256593) 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
#105 Claus Appelt (Konubixe) 100 (9647) 2021-09-01 22:22:11

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First four in challenge The third ENIGMA M4 message

Level X
Start date: 2011-09-21 - 18:45

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First four in challenge Affine Codes / Modulo Arithmetic with N / Extended Euclid

Level I
Start date: 2011-09-09 - 11:24

Rank (#557) 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
#556 nyx19 (nyx19) 100 (700) 2021-09-06 18:47:00

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First four in challenge A really long number sequence

Level II
Start date: 2011-09-05 - 22:37

Rank (#114) 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
#114 Erich (ErichSt) 1083 (12861) 2021-07-22 13:51:18

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First four in challenge Pigpen with a twist — Part 1

Level I
Start date: 2011-09-05 - 22:17

Rank (#148) User Achieved points (Global score) Solved at y-m-d - h:m:s

Michael Möller (michaelm) 200 (256593) 2011-09-05 22:17:01
Roland Jansen (roland) 200 (17607) 2011-09-05 22:17:01
Seth Kintigh (DarkFibre) 200 (79471) 2011-09-05 22:17:01
dbuq (dbuq) 200 (22762) 2011-09-05 22:17:01
#148 Gerd Wilts (gerdw) 100 (50634) 2021-06-26 17:19:49

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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

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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 (56037) 2021-04-29 23:42:22

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First four in challenge Modified Caesar Cipher

Level I
Start date: 2011-09-02 - 13:02

Rank (#219) 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 (256593) 2011-09-02 20:39:42
#218 Bertold (bk) 100 (9773) 2021-09-12 17:54:11

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First four in challenge Unusual encryption using a diophantine equation

Level II
Start date: 2011-09-02 - 12:57

Rank (#63) 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
#63 Antares (Antares) 1083 (32880) 2021-07-18 05:01:14

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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 (9647) 2021-05-16 19:40:17

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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 (9647) 2021-05-16 17:23:19

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First four in challenge RSA: Two different keys — same ciphertext

Level II
Start date: 2011-08-15 - 17:03

Rank (#152) 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
#152 thatbusybeaver (thatbusybeaver) 1083 (12456) 2021-07-29 06:07:22

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First four in challenge Broadcasting and low exponent — RSA Attack

Level II
Start date: 2011-07-22 - 20:00

Rank (#222) 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
#222 thatbusybeaver (thatbusybeaver) 1083 (12456) 2021-07-29 05:43:05

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First four in challenge Number Sequence — Part 2

Level I
Start date: 2011-07-11 - 14:34

Rank (#2028) 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
#2026 gilotyna (gilotyna) 100 (300) 2021-09-16 05:06:00

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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 (#41) 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
#41 Antares (Antares) 1082 (32880) 2021-07-19 21:32:07

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First four in challenge Music Code — Part 1

Level I
Start date: 2011-05-17 - 10:00

Rank (#41) 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
#41 Antares (Antares) 100 (32880) 2021-07-19 20:16:48

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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

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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 (195334) 2021-04-01 08:09:59

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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 Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 1

Level I
Start date: 2011-04-07 - 00:00

Rank (#95) 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
#95 Antares (Antares) 100 (32880) 2021-07-18 05:34:00

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First four in challenge Cracking SHA1-Hashed Passwords

Level II
Start date: 2011-04-04 - 21:38

Rank (#514) 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
#512 jonas (eu_mesm0) 1082 (3950) 2021-08-23 04:55:45

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First four in challenge Lattice Part 1

Level II
Start date: 2011-03-11 - 13:15

Rank (#30) 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
#30 Silvia Kortmann (mikinsget) 1082 (24027) 2021-07-16 22:40:04

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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

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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 (50634) 2021-02-22 14:55:15

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First four in challenge Kaskade-S/T — Part 3

Level II
Start date: 2011-03-04 - 00:00

Rank (#32) 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
#32 Eugene (lim0n) 1082 (195334) 2021-08-23 14:38:48

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First four in challenge Lunchtime Attack on the Fully Homomorphic Encryption Scheme

Level II
Start date: 2011-01-14 - 00:00

Rank (#45) 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
#45 Antares (Antares) 1082 (32880) 2021-07-19 18:25:10

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First four in challenge Recovering the Private Key in the Fully Homomorphic Encryption Scheme

Level III
Start date: 2011-01-14 - 00:00

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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 (9647) 2021-05-24 19:26:25

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First four in challenge Original Caesar Cipher

Level I
Start date: 2010-12-15 - 00:00

Rank (#2870) 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
#2866 gilotyna (gilotyna) 100 (300) 2021-09-16 04:58:24

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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

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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 (195334) 2020-08-22 08:23:46

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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 (195334) 2020-07-08 13:45:44

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First four in challenge Enigma Combinatorics

Level I
Start date: 2010-11-12 - 15:31

Rank (#98) 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
#98 Jeff (Fountain) 100 (10372) 2021-07-16 12:52:07

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First four in challenge One-Time Pad with Flaws

Level I
Start date: 2010-11-12 - 15:30

Rank (#299) 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
#298 Florian Seitz (doctor_funkenstein) 100 (3089) 2021-07-10 14:40:24

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First four in challenge Hybrid Encryption I

Level II
Start date: 2010-11-02 - 00:00

Rank (#165) 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
#165 E01814263 (E01814263) 1081 (5814) 2021-06-24 09:57:09

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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

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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 (50634) 2021-02-14 17:52:06

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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 (56037) 2021-04-22 03:10:55

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First four in challenge Molehunt (Part 2/3)

Level I
Start date: 2010-10-23 - 15:00

Rank (#138) 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
#138 Alain Millecam (Vadrusz) 100 (5189) 2021-07-28 07:10:25

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First four in challenge Molehunt (Part 1/3)

Level I
Start date: 2010-10-23 - 10:00

Rank (#146) 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
#146 Alain Millecam (Vadrusz) 100 (5189) 2021-07-19 19:35:17

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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

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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

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First four in challenge Caesar Encryption

Level I
Start date: 2010-10-21 - 19:49

Rank (#1365) 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
#1364 et2 (theghost2) 100 (1485) 2021-09-15 23:52:03

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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 (9647) 2021-05-01 23:22:55

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First four in challenge Kryptos

Level X
Start date: 2010-10-14 - 13:30

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First four in challenge Not-so-Secret Message from Malawi — Part I (RSA)

Level II
Start date: 2010-10-14 - 13:30

Rank (#188) 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
#188 Claus Appelt (Konubixe) 1081 (9647) 2021-09-04 22:51:24

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First four in challenge Not-so-Secret Message from Malawi — Part II (ECC)

Level II
Start date: 2010-10-14 - 13:30

Rank (#38) 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
#38 DS (DS8279) 1081 (34191) 2021-08-13 20:01:03

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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 (422251) 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 (422251) 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

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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

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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