nurikabe

0:00
 
Size6×6Typenurikabepuzz.linkOpen in puzz.linkAI Solve Rate16/51Cheapest Solvegrok-4-1-fast-reasoning ($0.0130)Fastest Solveo3 (2m 23s)

Rules

Shade cells to form a connected wall. Each numbered cell is part of an unshaded island of that size. Islands cannot touch orthogonally. No 2×2 block of shaded cells.