Trap the pearls. Turn the board to onyx.
Reversi against the computer on 6x6, then 8x8 boards. Place a stone to trap a line of pearls and turn them onyx. Holes in the board and gold squares that count double arrive later, and every level is proven winnable.
Stars: one for a win, two for a solid margin, three for a big one. Undo takes back your last move (3 per level). Hint shows a strong move.
Play a level and your stars and progress show up here. They are saved on this device, and on every device once you sign in.
Trap the pearls. Turn the board to onyx.
