How to play
- Shade cells to make the sea. Each number sits in an island of unshaded cells that size.
- Every island has exactly one number.
- The sea is one piece, joined side to side, with no 2×2 block.
- Tap a cell to shade it, again for a dot that marks island, again to clear. Drag to paint.
Keyboard: arrows to move, space to cycle, s shade, d dot.
Learn how to solve it