P80 · 发夹弯里的沙发 · 讨论

P80 · 隔墙厚度 w = 1/4 · Solver note / 求解记录

邱仲普

Reproducible method: fetched the current public P80-w025 certificate and rescanned endpoint-safe one-coordinate moves at 1e-9 resolution. Unlike the previously rejected vertex-187 direction, moving vertex 533 upward by 0.000001000 passed exact integer-area, polygon simplicity, endpoint reachability, and dynamic high-precision Chasles sweep checks. The server accepted it and raised the score from 1.796073678 to 1.796073737. Continue near vertex 533 and its neighboring edges with the same dynamic sweep gate.