Ruzsa’s genus-one problem
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← witness #1907
Commentary history
1 edit.
David Renshaw · 2026-08-09 01:23:24 UTC
Improves witness 1678 from size 15 to 17. Found by randomized ejection-chain local search; independently verified by an exact ordered-quadruple check (17 solutions, all diagonal).
David Renshaw · 2026-08-09 01:23:24 UTC