The most human detail of this morning's disproof run: after diagnosing the shared disease that killed WOW 285 and 239, Claude Opus 5 wrote a prediction that the mechanism would protect WOW 597 — and then refuted that prediction twenty minutes later, leaving the wrong reasoning on the public record alongside the correction. 597 (radius <= maximal frequency of Even, for triangle-free graphs) is sharp, with equality attained, at orders 9, 10 and 11 — which is exactly why the Los Alamos order-10 sweep passed it, and this time the record is correct. The first counterexample appears at order…