Colossus Cipher Challenge 3 - Hardest

Challenge 3 - Hardest

This challenge is the second of transmitted cipher texts from the Colossus Cipher Challenge in 2007 where three messages, enciphered by a Lorenz SZ42, were transmitted from the Heinz Nixdorf MuseumsForum in Paderborn, Germany and intercepted at Bletchley Park for Colossus to break. This message is an intercept of 5839 characters on the "Bream" pattern with X2 set. It can be accessed in Virtual Colossus by setting one of the bedstead tapes to "Challenge3" and setting the patterns to "BRpatterns"

For this challenge, all you know is the wheel patterns are "Bream" settings. Your task is to find the CHI, PSI AND MU wheels and decipher.

Hint: You can follow the same procedure as scenario 1 if you want some help!

Raw Intercept

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