Reversi

Place a disc so it surrounds one or more opposing discs in a straight line between your new disc and an existing one. Every surrounded line flips to your color. If you have no legal move, your turn is skipped automatically. Play ends when neither player can move. Whoever has more discs wins; equal counts draw.

Online rooms wait for all players. Everyone must agree to a rematch. Leaving or disconnecting clears that online board.

Make a line that traps opposing discs

Your new disc must bracket at least one opposing disc against a disc you already own. For example, your disc, two opposing discs, and an empty square form a legal opportunity: playing in that empty square flips both opposing discs. The line can be horizontal, vertical, or diagonal. A single move can flip several lines at once.

Corners and available moves matter

Taking the largest number of discs immediately can give your opponent a strong reply. Check whether your move opens a corner, because a disc placed in a corner cannot be bracketed and flipped. Squares next to an empty corner deserve particular care. Also compare how many legal moves each player will have afterwards. A skipped turn is not a loss: play continues if the other player can move. The final disc count decides the result when neither side has a move.

Questions players ask

Can I place a disc anywhere empty?

No. The move must bracket at least one opposing disc along a straight line ending at one of your own discs.

Does a skipped turn mean I lose?

No. The game passes automatically when you have no legal move. It ends only when neither player can move.

Does the board have to be full to finish?

No. Both players can run out of legal moves with empty squares left. The final disc counts decide the winner; equal counts draw.

Keep playing and learning

Play Checkers for captures on the same board size, or Four in a Row to practise blocking immediate threats.