The board is a grid of cells. Each cell is either alive (black) or dead (white). At the start of the game, you can make as many cells alive as you like. Then you start the game running. In each turn (or generation) cells may change from live to dead, or dead to live according to these rules
Click on cells in the array to toggle state from live to dead. Click on one cell at a time
Click Step to advance one generation, or Run to run continuously.