MysteryTwister C3
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Level I Challenges (82)

Page 1 of the challenges in Level I, ordered by date posted (the most recent appear first).

Cryptanalysis Hacking Puzzles — Part 2

[martins-02] - 32 users already solved this challenge, 13 are working on it.
 
 
 

Solving this challenge is not as hard as finding the needle in a haystack, isn't it?
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Author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published on: 2019-01-09 14:10
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#32) Achieved points (Global score) y-m-d - h:m:s

Armin Krauss (argh) 200 (175390) 2019-01-09 15:41:27
Dominik M. (Sgt. Pepper) 200 (89042) 2019-01-09 16:25:16
sarah b (silva) 200 (14059) 2019-01-09 20:37:52
Alain Collignon (vexilla72) 200 (80284) 2019-01-10 08:00:54
#5 Random Dude (rnd) 200 (77973) 2019-01-10 13:53:12
#6 D3d4lu5 (D3d4lu5) 150 (260853) 2019-01-10 22:13:00
#7 S (Zyphe) 133 (10461) 2019-01-11 17:15:04
#8 George (Theofanidis) 133 (101521) 2019-01-11 18:10:41
#9 Michael Möller (michaelm) 125 (169404) 2019-01-12 22:07:19
#10 0e85dc6eaf (0e85dc6eaf) 125 (125) 2019-01-13 13:05:43
#11 j.h. (haegarq) 114 (15252) 2019-01-16 06:17:43
#12 E.T (Ertheb) 107 (71517) 2019-01-22 21:08:13
#13 Lane Williams (planetlane) 105 (21611) 2019-01-31 03:52:34
#14 Klein (rijman) 104 (417) 2019-02-04 19:38:43
#15 Oliver Spiess (AWK-Spiess) 103 (503) 2019-02-10 23:03:31
#16 Pierre Robier (tripleedged) 103 (5916) 2019-02-16 16:59:17
#17 yachoor (yachoor) 103 (103) 2019-02-18 12:09:49
#18 Oliver H (AlfheriH) 102 (804) 2019-02-23 13:20:02
#19 Luigy (Luigy) 102 (102) 2019-03-01 01:12:17
#20 Sergey (vkaser) 102 (902) 2019-03-05 14:17:35
#21 Ulrich Dorobeck (Papageno) 102 (3827) 2019-03-06 16:31:58
#22 Rainer Zufall (kiekuk) 102 (56786) 2019-03-07 09:54:57
#23 Viktor (Veselovský) 102 (142053) 2019-03-10 11:36:16
#24 Snake (snk) 102 (72164) 2019-03-10 13:49:10
#25 Somebody (Achidutzu) 102 (403) 2019-03-11 15:41:55
#26 Michael (FoM) 102 (34465) 2019-03-14 15:40:07
#27 Thiago Araujo Pereira (thiagoap) 101 (701) 2019-03-21 14:22:15
#28 Joerg G. (SnifferMaster) 101 (18154) 2019-03-22 14:48:50
#29 Jennifer White (Dusty) 101 (501) 2019-03-24 20:38:43
#30 Sebastian Slupina (Grandwizard) 101 (10866) 2019-03-31 23:42:04
#31 Christian (Zettorino) 101 (502) 2019-04-04 10:17:30
#32 Kame Kaze (kamekazeman) 101 (301) 2019-04-17 23:43:59
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Cryptanalysis Hacking Puzzles — Part 1

[martins-01] - 16 users already solved this challenge, 11 are working on it.
 
 
 

Three messages were delivered — two encrypted, one in clear. Can you solve the puzzle?
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Author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published on: 2018-10-26 20:33
Maximum number of attempts for this challenge: 15

All successful users of this challenge

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

Viktor (Veselovský) 200 (142053) 2018-10-26 22:47:28
D3d4lu5 (D3d4lu5) 200 (260853) 2018-10-27 08:18:21
Dominik M. (Sgt. Pepper) 200 (89042) 2018-10-27 14:30:52
Random Dude (rnd) 150 (77973) 2018-10-28 01:43:34
#5 Snake (snk) 150 (72164) 2018-10-28 17:45:23
#6 E.T (Ertheb) 150 (71517) 2018-10-28 18:58:04
#7 Armin Krauss (argh) 117 (175390) 2018-11-01 19:25:26
#8 Rainer Zufall (kiekuk) 113 (56786) 2018-11-03 12:57:49
#9 Kurt Gebauer (Yokozuna) 113 (146278) 2018-11-03 15:32:07
#10 H. Lautenschlager (helmi) 113 (29022) 2018-11-03 17:33:23
#11 Alain Collignon (vexilla72) 111 (80284) 2018-11-04 11:04:29
#12 Hans Peter (hanspeter) 108 (52256) 2018-11-08 18:35:37
#13 Johnatan (RazorBest) 103 (1105) 2018-12-03 17:38:42
#14 Michael (FoM) 102 (34465) 2018-12-27 19:40:37
#15 S (Zyphe) 101 (10461) 2019-01-13 16:47:18
#16 v1k1ng (v1k1ng) 101 (101) 2019-01-21 22:25:16
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Autokey Cipher

[cli-02] - 64 users already solved this challenge, 2 are working on it.
 
 
 

The autokey cipher uses only a short keyword and the plaintext to encrypt messages. Are you able to break the given ciphertext?
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Author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published on: 2018-09-25 14:21
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#64) Achieved points (Global score) y-m-d - h:m:s

Snake (snk) 200 (72164) 2018-09-25 16:08:04
Viktor (Veselovský) 200 (142053) 2018-09-25 22:11:53
Michael Möller (michaelm) 200 (169404) 2018-09-25 22:32:51
Kurt Gebauer (Yokozuna) 200 (146278) 2018-09-26 02:53:02
#5 Armin Krauss (argh) 200 (175390) 2018-09-26 09:50:09
#6 H. Lautenschlager (helmi) 150 (29022) 2018-09-26 19:27:39
#7 Random Dude (rnd) 150 (77973) 2018-09-26 20:28:17
#8 Em Doulgerakis (Greko) 150 (124033) 2018-09-26 20:50:58
#9 Alain Collignon (vexilla72) 150 (80284) 2018-09-27 11:05:50
#10 Dominik M. (Sgt. Pepper) 150 (89042) 2018-09-27 11:50:12
#11 Nicolas (nicosPavlov) 133 (151166) 2018-09-27 18:41:45
#12 D3d4lu5 (D3d4lu5) 133 (260853) 2018-09-28 06:16:40
#13 Murat Kaya (mksecurity) 133 (133) 2018-09-28 08:50:51
#14 Joerg G. (SnifferMaster) 125 (18154) 2018-09-28 15:52:36
#15 E.T (Ertheb) 125 (71517) 2018-09-28 16:50:20
#16 Joachim Kessel (joe_counter) 120 (229) 2018-09-29 15:00:43
#17 George (Theofanidis) 120 (101521) 2018-09-29 17:44:10
#18 sarah b (silva) 117 (14059) 2018-10-01 10:03:13
#19 S (Zyphe) 114 (10461) 2018-10-01 16:30:16
#20 Lane Williams (planetlane) 113 (21611) 2018-10-02 18:45:46
#21 Jörg Schwarzwälder (secuso) 113 (2125) 2018-10-02 22:31:54
#22 Marc (rcll0891) 113 (22180) 2018-10-02 22:50:57
#23 Dodo (Dodo) 111 (2335) 2018-10-03 23:13:57
#24 HowarthStudios (HowarthStudios) 110 (3496) 2018-10-04 18:57:11
#25 kelalaka (kelalaka) 108 (417) 2018-10-06 16:20:34
#26 Javantea (Javantea) 108 (40816) 2018-10-08 03:03:57
#27 Luigi Tomelli (archstanton) 107 (108345) 2018-10-09 09:55:33
#28 Nofre Tete (noffi) 106 (21921) 2018-10-11 00:10:28
#29 Arbacle Clemens (arbacle) 106 (2502) 2018-10-12 21:47:20
#30 Ekrem Aydin (Eko115) 105 (1105) 2018-10-14 15:12:37
#31 Pavel Kessler (pavel) 105 (3791) 2018-10-14 23:31:28
#32 j.h. (haegarq) 104 (15252) 2018-10-17 14:31:21
#33 Roland Jansen (roland) 104 (17607) 2018-10-20 10:17:11
#34 jusb3 (jusb3) 103 (2199) 2018-10-25 17:22:24
#35 João Vaz Martins (Awakening Star) 103 (4561) 2018-10-28 12:15:47
#36 Christian (gizmore) 103 (204) 2018-10-29 21:59:44
#37 Rainer Zufall (kiekuk) 103 (56786) 2018-10-29 22:51:17
#38 clyto (clytorock) 103 (3195) 2018-11-03 13:42:10
#39 Hans Peter (hanspeter) 102 (52256) 2018-11-08 18:43:25
#40 madness (madness) 102 (15307) 2018-11-15 02:30:32
#41 steven (steven18) 102 (3091) 2018-11-25 13:56:37
#42 Karl Schutt (günter) 101 (41550) 2018-12-02 08:45:33
#43 Johnatan (RazorBest) 101 (1105) 2018-12-03 18:06:20
#44 zuben c3 (zuben-c3) 101 (24853) 2018-12-17 19:42:41
#45 DirkS (Dustman) 101 (8479) 2018-12-18 14:06:12
#46 Dev Kalra (0__0) 101 (1490) 2018-12-22 18:38:39
#47 fm92 (fm92) 101 (601) 2018-12-24 11:44:39
#48 Bertolo (Bertolo) 101 (7167) 2018-12-24 14:34:03
#49 Ein-beispiel (Ein-beispiel) 101 (301) 2018-12-30 23:25:55
#50 Pierre Robier (tripleedged) 101 (5916) 2019-01-02 23:49:13
#51 Epeli (Epeli) 101 (3084) 2019-01-04 23:58:11
#52 Szabó Zoltán (szabo.z87) 101 (55604) 2019-01-07 10:50:44
#53 Michael (FoM) 101 (34465) 2019-01-15 01:34:57
#54 mglarragan (mglarragan) 101 (2091) 2019-01-20 11:02:50
#55 Oliver H (AlfheriH) 101 (804) 2019-02-23 15:07:06
#56 George Lasry (george4096) 101 (292103) 2019-02-23 20:06:46
#57 Raudah (Sandouk) 101 (301) 2019-03-05 20:33:00
#58 Ulrich Dorobeck (Papageno) 101 (3827) 2019-03-05 22:32:20
#59 Somebody (Achidutzu) 101 (403) 2019-03-15 22:17:42
#60 Selma Metin (seltuna) 101 (902) 2019-03-28 14:58:12
#61 Sebastian Slupina (Grandwizard) 101 (10866) 2019-03-31 23:23:12
#62 Christian (Zettorino) 101 (502) 2019-04-04 11:04:03
#63 Darchicourt (Darki) 101 (3308) 2019-04-09 11:27:52
#64 Kame Kaze (kamekazeman) 100 (301) 2019-04-18 16:58:27
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Modular Sequences

[cli-01] - 27 users already solved this challenge, 14 are working on it.
 
 
 

What do you know about modular sequences? Work it out.
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Author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published on: 2018-09-25 14:19
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#27) Achieved points (Global score) y-m-d - h:m:s

Em Doulgerakis (Greko) 200 (124033) 2018-09-25 15:30:49
Snake (snk) 200 (72164) 2018-09-25 17:05:31
Viktor (Veselovský) 200 (142053) 2018-09-25 21:39:20
Kurt Gebauer (Yokozuna) 200 (146278) 2018-09-26 02:12:29
#5 Armin Krauss (argh) 200 (175390) 2018-09-26 09:53:20
#6 H. Lautenschlager (helmi) 150 (29022) 2018-09-26 17:43:13
#7 Random Dude (rnd) 150 (77973) 2018-09-26 20:55:07
#8 Dominik M. (Sgt. Pepper) 150 (89042) 2018-09-27 11:43:26
#9 Alain Collignon (vexilla72) 150 (80284) 2018-09-27 12:26:17
#10 D3d4lu5 (D3d4lu5) 133 (260853) 2018-09-28 06:52:02
#11 S (Zyphe) 114 (10461) 2018-10-01 15:48:02
#12 Dodo (Dodo) 111 (2335) 2018-10-03 22:15:17
#13 kelalaka (kelalaka) 108 (417) 2018-10-07 11:41:41
#14 Luigi Tomelli (archstanton) 106 (108345) 2018-10-11 14:59:10
#15 Rainer Zufall (kiekuk) 103 (56786) 2018-11-01 19:44:48
#16 Hans Peter (hanspeter) 102 (52256) 2018-11-15 07:33:53
#17 madness (madness) 102 (15307) 2018-11-15 10:59:14
#18 Christian (chrisadmin) 102 (2019) 2018-11-19 18:50:23
#19 E.T (Ertheb) 102 (71517) 2018-11-19 21:26:49
#20 Joerg G. (SnifferMaster) 102 (18154) 2018-11-22 14:48:02
#21 Johnatan (RazorBest) 101 (1105) 2018-12-05 11:00:20
#22 Michael (FoM) 101 (34465) 2019-01-13 12:05:38
#23 Pierre Robier (tripleedged) 101 (5916) 2019-02-18 23:51:30
#24 Oliver H (AlfheriH) 101 (804) 2019-02-23 14:52:10
#25 Jens Hansen (bonnaix) 101 (3511) 2019-03-08 20:38:41
#26 Klaus (kumaus) 101 (21415) 2019-03-19 16:35:44
#27 Darchicourt (Darki) 101 (3308) 2019-04-09 13:56:41
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Number Sequence — Part 10

[strauss-01] - 63 users already solved this challenge, 16 are working on it.
 
 
 

How many experience points does Thomas need to reach the 200th level of his new computer game?
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Author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published on: 2018-04-18 16:56
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#63) Achieved points (Global score) y-m-d - h:m:s

Armin Krauss (argh) 200 (175390) 2018-04-18 18:25:13
Kurt Gebauer (Yokozuna) 200 (146278) 2018-04-18 20:22:55
H. Lautenschlager (helmi) 200 (29022) 2018-04-18 20:29:36
Viktor (Veselovský) 200 (142053) 2018-04-18 20:31:10
#5 Nofre Tete (noffi) 200 (21921) 2018-04-18 22:28:44
#6 Snake (snk) 200 (72164) 2018-04-19 10:02:11
#7 Lucio (lcalderonc) 150 (1251) 2018-04-19 19:24:03
#8 Dominik M. (Sgt. Pepper) 150 (89042) 2018-04-19 22:11:26
#9 S (Zyphe) 150 (10461) 2018-04-19 23:07:58
#10 D3d4lu5 (D3d4lu5) 133 (260853) 2018-04-20 18:28:23
#11 Luigi Castro Alvis (LuigiCastro21) 120 (2417) 2018-04-23 05:00:35
#12 E.T (Ertheb) 117 (71517) 2018-04-23 17:22:26
#13 Rainer Zufall (kiekuk) 113 (56786) 2018-04-25 23:01:20
#14 Robert (rm) 113 (56475) 2018-04-26 00:22:43
#15 nimroth (nimroth cynthor) 109 (6021) 2018-04-28 23:07:37
#16 Diego (DiegoRA) 109 (3697) 2018-04-29 04:34:37
#17 Diego Ucharima (Diego_Ucharima) 109 (2206) 2018-04-29 08:40:11
#18 Carlos (OzBlanco) 108 (3596) 2018-04-29 21:10:11
#19 Steve Vaillancourt (stvai2) 108 (15041) 2018-04-29 23:19:24
#20 George (Theofanidis) 103 (101521) 2018-05-27 17:04:16
#21 Danny Higgins (hamster147) 102 (22117) 2018-05-31 12:56:53
#22 Lasome (Lasome) 102 (203) 2018-05-31 19:42:31
#23 Ansehn (Rnabtd) 102 (203) 2018-05-31 19:50:50
#24 Andreas (reklavv) 102 (102) 2018-06-05 15:56:09
#25 j.h. (haegarq) 102 (15252) 2018-06-06 08:38:06
#26 Georgius Stolte (HazmatsFear) 102 (15671) 2018-06-06 20:55:45
#27 Alain Collignon (vexilla72) 102 (80284) 2018-06-07 16:49:46
#28 Kim H. S. (tenchijin) 102 (25468) 2018-06-07 22:01:45
#29 Nicolas (nicosPavlov) 102 (151166) 2018-06-10 05:55:54
#30 jack (jack_) 102 (303) 2018-06-18 16:58:32
#31 Random Dude (rnd) 101 (77973) 2018-07-07 05:49:00
#32 Em Doulgerakis (Greko) 101 (124033) 2018-07-26 17:18:32
#33 Hans Joachim Girulat (joregi) 101 (33493) 2018-07-27 15:41:49
#34 Karl Schutt (günter) 101 (41550) 2018-08-05 18:03:58
#35 Hughes (hughes) 101 (4735) 2018-08-06 08:13:07
#36 Julian (Lemmynator) 101 (16666) 2018-08-06 14:48:05
#37 Lane Williams (planetlane) 101 (21611) 2018-08-09 23:38:08
#38 mykallan (mikeA) 101 (2197) 2018-08-13 01:08:40
#39 Michael Möller (michaelm) 101 (169404) 2018-08-25 17:48:00
#40 A (2h873hcue) 101 (301) 2018-09-05 12:26:38
#41 Pavel Kessler (pavel) 101 (3791) 2018-09-24 23:22:06
#42 Jörg Schwarzwälder (secuso) 101 (2125) 2018-10-02 22:52:40
#43 kelalaka (kelalaka) 101 (417) 2018-10-07 13:15:50
#44 Javantea (Javantea) 101 (40816) 2018-10-10 03:40:25
#45 Luigi Tomelli (archstanton) 101 (108345) 2018-10-16 13:29:38
#46 Christian (chrisadmin) 101 (2019) 2018-10-17 19:52:58
#47 Mathijs Verbeek (QIXL) 101 (3096) 2018-10-17 21:07:59
#48 jusb3 (jusb3) 101 (2199) 2018-10-26 00:30:43
#49 Christian (gizmore) 101 (204) 2018-10-29 22:34:01
#50 Hans Peter (hanspeter) 100 (52256) 2018-11-08 18:38:36
#51 Johnatan (RazorBest) 100 (1105) 2018-12-17 12:20:28
#52 zuben c3 (zuben-c3) 100 (24853) 2018-12-17 19:05:08
#53 Elle (mermaidm0tel) 100 (200) 2018-12-21 12:48:39
#54 Kasia (kasia-tutej) 100 (53366) 2019-01-01 21:06:43
#55 Ronny (kadenbach) 100 (1000) 2019-01-06 01:49:20
#56 Michael (FoM) 100 (34465) 2019-01-12 02:36:00
#57 Piotr (lesnik7) 100 (7971) 2019-01-13 18:52:32
#58 Pierre Robier (tripleedged) 100 (5916) 2019-02-16 17:47:55
#59 Klaus (kumaus) 100 (21415) 2019-03-14 12:05:12
#60 Piyush Agarwal (Piyushgrwl) 100 (3493) 2019-03-20 23:26:41
#61 Joerg G. (SnifferMaster) 100 (18154) 2019-03-22 15:59:06
#62 Sebastian Slupina (Grandwizard) 100 (10866) 2019-04-04 12:10:14
#63 Darchicourt (Darki) 100 (3308) 2019-04-09 15:11:03
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   +++    [21:51 - 24.04.2019] r_karoly solved the Level I challenge 'Original Caesar Cipher'    +++    [14:24 - 24.04.2019] maryllb solved the Level I challenge 'Number Sequence'    +++    [14:20 - 24.04.2019] lim0n solved the Level I challenge 'Factorization Cipher — Part 1'    +++    [14:17 - 24.04.2019] lim0n solved the Level I challenge 'Number Sequence — Part 8'    +++    [13:31 - 24.04.2019] Hopfrog solved the Level I challenge 'Number Sequence — Part 2'    +++