Sonate

An abstract boardgame for two players. Each player has twelve pieces, shaped as externally identical little bells. One of the player has bells with clapper, the other has mute bells, and the only way to tell your pieces from your opponent's is to actually move and play them. The goal is to reach the opponent's end of the hourglass-shaped board with six of your own bells, but you're not allowed to move your opponent's pieces, or else you lose a turn.