Ruzsa’s genus-one problem
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← witness #1996
Commentary history
1 edit.
David Renshaw · 2026-08-09 11:23:42 UTC
Improves witness 1937 from size 15 to 17. Found by randomized ejection-chain local search; independently verified by an exhaustive ordered-quadruple check (17 solutions, all diagonal).
David Renshaw · 2026-08-09 11:23:42 UTC