The White and Black players each start with 14 Atoms of their color.
Click the green 'start thinking' circle to automatically randomize the starting position of atoms. (In the Fixed-Start variants there is no randomizing.)
 
The object of the game is to get rid of your opponent's atoms. (In the Losing variants the object is to get rid of your own atoms.)
 
Each player can move an atom of his color in any direction, but it must keep moving through all empty squares until it hits another atom or comes to rest against a wall.
If it hits another atom (of either color) it explodes and destroys all atoms of both players which are adjacent to it as well as itself. If it hits a wall it does not explode.
If a move by either player leaves atoms belonging to only one player, that player wins.. (In the Losing variants that player loses.)
If the last move leaves an empty board it is a draw.
If each player has only one atom left it is a draw.
If a player has atoms left but has no legal moves he is stalemated and it counts as a draw.