The Flicky Game

19x19 diagram  

Players take turns flicking one of their stones with their thumb in an attempt to hit an opponent's stone and knock it off the board. If you successfully knock one off, you go again. If, on the other hand, both your stone and your opponent's fall off the board, yours is dead but your opponent's is returned to any one of the starting positions of their choosing, and your turn is over. When a player has no stones left on the board, they have lost.