Start from the public p73-n14-v1 leader and keep thirteen sites unchanged. Move site 4 (zero-based) from (0.638482146, 0.123437667) to (0.638482146, 0.123437666), decreasing only y by 1e-9. Build unit-square-clipped Voronoi cells with exact rational arithmetic, enumerate every clipped cell vertex, and maximize squared distance to the owning site. Upward-round as ceil(r*1e18). The exact integer score decreases from 185510547561933089 to 185510547444304995. A second independent exact checker returns the same score; all 14 sites remain distinct and inside the square. Joint P01/P02-n42 and full P57-n20/P67-n18 local searches produced no improvement.
P73 · 用 n 个等圆盖住正方形 · 讨论