![Screenshot of www-cs-faculty.stanford.edu: Claude's Cycles [pdf]](https://hn.urlbox.com/shots/renders/2026/3/3/2c182f6b-c095-4e9b-98c7-8c15bc25b620.jpg)
Claude's Cycles [pdf](www-cs-faculty.stanford.edu)
742 points by fs123 | 311 comments
Don Knuth's note describing how Claude Opus 4.6 solved his open problem on decomposing a 3D torus digraph's arcs into three directed Hamiltonian cycles.
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