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Level II Challenges (160)

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

Weakened Handycipher — Part 3
[kallick-11] - 14 users already solved this challenge, 1 is working on it.
 
 
 
The challenges for the weakened Handycipher serve as an exercise and use an intentionally weakened version of Handycipher. Part 3 is a ciphertext-only challenge.
Handycipher is a newly designed cipher to permit pen-and-paper encrypting and decrypting, while providing a significantly high level of security.
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Author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published on: 2015-05-13 11:49
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#14) Achieved points (Global score) 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
#5 Alain (Integral) 1357 (207924) 2015-06-07 10:32:44
#6 zahir mohsen moradi (ariobarzan) 1216 (99757) 2015-09-14 18:27:06
#7 Michael Möller (michaelm) 1216 (256593) 2015-09-14 18:54:08
#8 Em Doulgerakis (Greko) 1152 (193799) 2016-06-24 14:59:34
#9 George Lasry (george4096) 1128 (422251) 2017-05-27 03:40:02
#10 Nicolas (nicosPavlov) 1119 (257791) 2018-01-23 02:27:58
#11 D3d4lu5 (D3d4lu5) 1111 (363488) 2018-10-27 06:27:48
#12 Viktor (Veselovský) 1108 (169444) 2019-02-22 23:32:41
#13 Danny Higgins (hamster147) 1106 (39638) 2019-05-08 16:05:36
#14 Random Dude (rnd) 1106 (103645) 2019-06-15 03:11:22
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   +++    [11:38 - 16.09.2021] silva solved the Level II challenge 'Keyshanc — Part 2'    +++    [05:06 - 16.09.2021] gilotyna solved the Level I challenge 'Number Sequence — Part 2'    +++    [04:58 - 16.09.2021] gilotyna solved the Level I challenge 'Original Caesar Cipher'    +++    [04:49 - 16.09.2021] gilotyna solved the Level I challenge 'Number Sequence'    +++    [23:56 - 15.09.2021] theghost2 solved the Level I challenge 'Original Caesar Cipher'    +++