Reply To: Competitor Ciphers & Challenges
I agree with the plugboard pairings in your solutions, but I was expecting different Bombe indicators for 5 & 6. Not sure if it’s my mistake or yours, and I don’t have time at the moment to work it out. If you add AAR to your indicator for 5, and add ZZO to your indicator for 6, you get the values I was expecting. Possibly something to do with working backwards to find indicators at the start of the message? Or a problem with the step function?
7 is possible to solve, but it is rather difficult without knowing what the second cipher is. I’ve prepared a few hints (all encrypted with the same settings I used for upsidedown-2025-6). The plaintext comes from the same source as the other plaintexts.
upsidedown-2025-7 Hint 1: PSDA DCST VUHZ BPRU PKOG AFJH YVHE SCZE WVNI BTLF HLCG WAGZ PNGA TLCB JGMQ TMUN HWXI ZWWU XHEQ YZZN YWFE LXEW UWUY RQTF OUUZ NWAU TCMQ NPUI UMSL GW
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