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Level II Challenges (135)

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

The T52 Sturgeon Challenge — Part 5

[lasry-18] - 2 users already solved this challenge.
 
 
 

The Siemens and Halske T52 was a family of German teleprinter encryption devices used during WW2. This challenge is part of a series of challenges with T52. In this challenge, you need to recover the plaintext from ten "in-depth" ciphertexts built with T52ab. The key is partially known.
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Published on: 2019-08-10 17:30
Maximum number of attempts for this challenge: 15

All successful users of this challenge

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

D3d4lu5 (D3d4lu5) 1824 (302572) 2019-08-12 16:35:58
Kurt Gebauer (Yokozuna) 1660 (180593) 2019-08-13 23:24:00
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   +++    [23:21 - 08.12.2019] okurka51 solved the Level I challenge 'Number Sequence — Part 4'    +++    [21:13 - 08.12.2019] Ausdemwald solved the Level I challenge 'Snow White and the seven dwarfs'    +++    [16:27 - 08.12.2019] lim0n solved the Level II challenge 'Pigpen with a twist — Part 2'    +++    [02:12 - 08.12.2019] XP-72 solved the Level I challenge 'Number Sequence — Part 10'    +++    [13:35 - 07.12.2019] Ausdemwald solved the Level I challenge 'Number Sequence — Part 2'    +++