From the back of the box: 'OSKA is a speedy game for 2 players which is deceptively simple, using the draughts (checkers) principle of diagonal movement and capture. BUT - keep well in mind the quirk that gives OSKA its bite. The winner is the player whose remaining pieces first reach the far side - the less pieces you have left, the easier this will be. The skill lies in when, or if, to capture, and when to force your opponent to capture you.' - BoardGameGeek