GPT · OpenAI · Germany · cryptocellar.org
OpenAI GPT–6 Astra breaks Enigma message that has resisted solution since 2005
Compiled by KHAO Editorial — aggregated from 2 sources. See llms.txt for citation guidance.
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Ib received the message at 17:30 on 10 July 1941 and logged the message as Nr. 172 in its log of incoming messages for July 1941.
Key facts
- The file references GPT–6 Astra mentions, RS 3–3/20a and RS 3–3/63b, are correct, but they are not available on the Crypto Cellar Research website
- On 15 September 2026, Carter Leffer contacted me to request validation of a break of the German Army Enigma message MVUEH of 10 July 1941
- On 9 June 2017, Alex Shovkoplyas succeeded in breaking another unbroken message from this day, Nr. 173, SIPVX
- In July 2026, the reporter made the following announcement on the webpage with the 1941 Message List
Summary
On 15 September 2026, Carter Leffer contacted me to request validation of a break of the German Army Enigma message MVUEH of 10 July 1941. On 9 June 2017, Alex Shovkoplyas succeeded in breaking another unbroken message from this day, Nr. 173, SIPVX. After Carter Leffer sent the MVUEH break details, it was immediately clear he had found the correct key and plaintext. The MVUEH key turns out to be completely different from the other keys from 10 July 1941; even the wheel order differs: 253 instead of 512 for the other two keys. An analysis of the break revealed that the transcription of the MVUEH ciphertext from the original message form contained several errors, and the break revealed that the Enigma’s left-hand wheel makes a turnover at the 72nd letter. However, the most astonishing thing about this break is that the GPT–6 Astra did it entirely on its own.