AI article
Claude Fable 5.1 Solves the Cyphral Distich, a 370-year-old cipher
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Hacker News | Sep 13, 2026 | u1hcw9nx
Automated excerpt
Problem We gave Claude Fable 5.1 an open task: solve Sir Thomas Urquhart’s Cyphral Distich. Each line contains exactly 32 letters and ends and / land (a rhyming 2 line verse), consistent with the promised distich. The Jewel (1652) has exactly 284 numbered pages, and the octastick + decagram contain 285 numbers. Either Urquhart slipped here or numbers of this line were misprinted. Fable 5.1 spent some time looking over different problems.
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