How to play
Tap or click a piece; the squares it can move to light up. Tap one of them to move. Pawns reaching the last rank become queens.
Against the computer, “Take back” undoes your last move and the reply. Change level or colour at any time — it starts a fresh game.
With a friend on the same screen, both sides are played by hand; “Flip board” turns it round for the other player.