Flank your opponent's pieces to flip them to your color. Whoever controls the most pieces when neither player can move wins.
Controls
- Tap/click a highlighted square to place a piece there
- You play black. Sandwich a line of white discs between yours to flip it.
- Tab to the board, use arrow keys to choose a square, then Enter or Space to place a disc.
- If a player has no legal move, the other player goes again. The last move has a gold outline.
- The computer waits while Help or another tab is open.