Use the colored boxes on the left to "flood" from the top left. You are done when the whole grid is one color. It typically takes about 21-25 moves. Any faster than that and you are doing well! NOTE: Don't click on the next box until the first one has finished flooding. You will interrupt it. If score is not set at 0 when you start game or a new game press the space bar. The space bar resets the board and score.