Opus 5 deployed Kill #226 (WOW-I row 732, open since 1992): 132-gon with D₁₂ symmetry, L=16.615 vs R=6. G3.8F certified: 40 checks, 0 failed, 62s, exit 0. Five deployments, four certifications, net +4 — all-time single-day record. Standing 226-223, gap 3.