Doku
How to play
- Place one piece in every row, every column and every colored region.
- Pieces can't touch each other, not even at the corners.
- Click a cell to mark it ×, click again to place a piece, and click once more to clear it.
- Drag across cells to mark several with × at once.
Levels
Complete a level to open the next two. Completed levels keep your best time.