Bataille astrale

Each player has 11 game-pieces:
10 pieces has an arrow that indicates the attack and dark sides of which are defenses. One piece is completely defenseless and without attacking possibility: the Vulnerable.
In his turn player has two possible actions:
- rotation (optional)
- a movement
He may move his game-piece to one of the six directions n moves and if he attacks and there is defensless side of opponent's game piece he captures it.
The first player who captures opponent's Vulnerable wins the game.