Othello

Sandwich your opponent's discs between two of yours to flip them — every move must capture at least one disc. If you have no legal move, your turn passes. When neither side can move, whoever holds more discs wins. Corners are gold: they can never be flipped back. Play the computer at three strengths (as Black or White) or pass the device for a local match.

Keyboard: arrows move · Enter/Space place · U/Ctrl+Z undo · N next round