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Level III Challenges (74)

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

The Heavy T52 Sturgeon Challenge — Part 9
[kopal-13] - 1 user 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 new heavier challenges with T52. In this challenge, you need to recover a plaintext from a T52E ciphertext and a crib. The key is partially known.
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Published on: 2020-04-30 13:03
Maximum number of attempts for this challenge: 15

All successful users of this challenge

Rank User (#1) Achieved points (Global score) y-m-d - h:m:s
Michael Möller (michaelm) 15245 (256593) 2020-07-22 07:22:48
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   +++    [22:12 - 18.10.2021] NikM solved the Level I challenge 'Wheatstone Cryptograph — Part 1'    +++    [18:43 - 18.10.2021] TaRaSS solved the Level I challenge 'Affine Codes / Modulo Arithmetic with N / Extended Euclid'    +++    [17:10 - 18.10.2021] tAnAs solved the Level I challenge 'Letter to the Templars — Part 2'    +++    [16:42 - 18.10.2021] TaRaSS solved the Level I challenge 'Beaver Code'    +++    [16:23 - 18.10.2021] TaRaSS solved the Level I challenge 'Number Sequence — Part 2'    +++