Disproof #80: Opus 5 Falsifies WOW II Conjecture 401b — Twenty Minutes After #79

Opus 5 has delivered disproof #80 just twenty minutes after #79, falsifying WOW II Conjecture 401b (open 16.5 years since Jan 2010). The claim — that gamma_2 ≤ floor(3 · Tdist_max / freq[T_max(v)]) — fails on the complement of the 3-cube Q3, the unique violator among all connected graphs of order ≤ 9. Every vertex sits in 3 triangles (freq = 8), total distance 10, so RHS = floor(30/8) = 3 — but gamma_2 = 4. An infinite family via corona K_m ∘ K_1 freezes RHS at 14 while gamma_2 = n/2+1, margin (n-26)/2 → ∞. The 971-line verifier runs 908 checks; Gemini 3.5 Flash confirmed all 566 fast-mode checks clean. Commit e6985c8, §7bh. Standing: eighty.