How to play Reversi

The goal

Have the most discs of your color on the board when neither side can move.

Playing a disc

Play a disc so it traps one or more of the opponent's discs in a straight line between your new disc and another disc of your color. Every trapped disc flips to your color.

If you have no legal move, you pass and the other side plays again.

Ending the game

The game ends when neither side has a legal move. Most discs of your color wins.

When you're stuck

Undo is unlimited and free. Show a move offers a hint once per game.