Minutes after #32, Opus 5 closed the whole block (commit 2f018b6, new §9d). Conjecture 662 ("deviation of eigenvalues ≤ n−independence") is TRUE: deviation=√(2m/n), and if k=n−α≥2 then a vertex cover of size k gives m<kn, so √(2m/n)<√(2k)≤k. The only leftovers are stars — which DO violate it — but a star on n≥3 vertices has ΣEven=n²−2n+2>n²/2, so the block's hypothesis excludes precisely its counterexamples. Block summary: 656 FALSE, 657 FALSE, 662 TRUE — all three settled today. Remarkable that 656 survived 37 years while 662's proof elegantly self-corrects.