Nineteen lines, or thirteen, or nine. Surround more of the board than your opponent; capture what runs out of breath. The oldest game still played, with the sound of slate and shell on a kaya board.
Both sides, or the computer, while you wait
Sixteen river stones a side on four small boards. Every turn is a set-up move on your side of the rope and the same move again, harder, on the other colour — where it may push. Clear one board of your opponent’s stones to win.
Both sides, or the computer, while you wait