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GPT-6 Astra cracks 217-year-old Napoleonic cipher in six hours

A French-language post claims Astra deciphered an unsolved code addressed to one of Napoleon's generals in 6 hours, a puzzle that had resisted for 217 years.

Antoine Copra
@Cobra_FX_Archived 29 days agoOriginally posted 2026.10.05
Antoine Copra @Cobra_FX_Originally posted 2026.10.05
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En 6 heures, GPT-6 Astra a déchiffré un code non résolu adressé à l'un des généraux de Napoléon. L'énigme résistait depuis 217 ans.

This post quotes another post: “Engineer uses GPT-6 Astra to decipher 217-year-old Napoleonic letter”

x.com/cobra_fx_/status/2106975239255076917Archived 2026.10.06 10:05