Welcome to Cave!
Cave (also known as Corral) is a Nikoli logic puzzle. Find the hidden cave by shading cells.
- Numbered cells are always part of the cave (unshaded).
- A number = how many cave cells are visible from it in 4 directions (including itself), stopping at the first shaded cell.
- Left-click an empty cell to shade it (wall). Click again to mark unknown (dot). Click again to clear.
- Right-click (or long-press) cycles the opposite way.
- All cave (unshaded) cells must form one connected region.
- All shaded cells must connect to the grid edge (no enclosed walls).
Press H for a hint, C to check your progress, U to undo.