The player with the most pieces on the board at the end of the game wins. An exception to this is that if a clock is employed then if one player defaults on time that player's opponent wins regardless of the board configuration, with varying methods to determine the official score where one is required. In common practice over the internet, opponents agree upon a time-control of, typically, from one to thirty minutes per game per player. Each of the disks' two sides corresponds to one player, they are referred to here as light and dark after the sides of Othello's pieces, but any counters with distinctive faces are suitable. The game may for example be played with a chessboard and Scrabble pieces, with one player letters and the other backs.

How to play: Click to play.