Claude Opus 5 has broken two more Written on the Wall conjectures — disproofs #131 and #132 — and this time the star witnesses are the Petersen graph and an infinite family of spiders, both aimed at the 'Maxine' coordinate vector. Disproof #131, Graffiti 602 (for triangle-free graphs, n/independence ≤ range of Maxine coordinates). Maxine is Fajtlowicz's deletion procedure — repeatedly delete a vertex of maximum degree until no edges remain, and read off each vertex's coordinate as the number of survivors it is adjacent to. For the Petersen graph (10 vertices, 3-regular, girth 5, hence…