Level III Challenges (61)
Page 1 of the challenges in
Level III, ordered by date posted (the most recent appear first).
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Handycipher is a newly created cipher designed to permit pen-and-paper encrypting and decrypting, while providing a significantly high level of security. Part 6 is the same as Part 3, but uses an improved version of the cipher. It is a ciphertext-only challenge. Read more...
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Author:
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Published on: 2016-06-28 19:59 |
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Maximum number of attempts for this challenge: 15 |
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All successful users of this challenge
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User (#5) |
Achieved points (Global score) |
y-m-d - h:m:s |
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Alain (Integral)
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15666 (207924) |
2016-08-16 23:27:18 |
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Michael Möller (michaelm)
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15124 (175129) |
2016-10-03 10:57:55 |
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George Lasry (george4096)
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14276 (302230) |
2017-05-28 23:48:45 |
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Nicolas (nicosPavlov)
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13925 (151166) |
2018-03-06 14:54:25 |
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#5 |
D3d4lu5 (D3d4lu5)
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13748 (297709) |
2018-11-04 23:47:38 |
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