Classic 8x8 disc-flipping strategy game against a computer opponent with three difficulty levels, undo and hints. Board

How to play

Black moves first. Place a disc so it traps one or more rows of enemy discs between your new disc and another of yours.
Trapped discs flip to your color. A move must flip at least one disc.
If you have no legal move you pass. The game ends when neither side can move; most discs wins.

Controls