The game's objective is to completely fill the grid with colored squares.

The grid contains numbered squares; you can create a block by clicking and dragging starting on one of those squares. For a correct solution, the size of each block should match the number that it contains. (The block will become colored when it has the correct size.)

If you make a mistake, you can click and drag to resize blocks or right click to remove a block.

Try out the small puzzle below to get started: