How to Play
Reversi, also known as Othello, starts with four discs in the center. Players take turns placing a disc of their color so that it sandwiches one or more opponent discs between two of their own. Those trapped discs flip to the current player's color.
The game ends when neither player can move. The player with the most discs on the board wins.
Controls
Click a legal move; the game highlights valid placements. Pass automatically if no move is available.
Scoring
The final disc count determines the winner. Some modes track Elo ratings.
