The game is played on a board of 9 by 9 squares, checkered, with black squares in the corners. Each player has a king, a queen, two rooks, two knights, and two bishops, i.e., the usual set of pieces without pawns. There is an additional piece, not owned by any player: the ball. The object of the game is to kick to ball to the goal at the opponents side of the board. The squares e1 and e9 are the goals.
 
A move of a player consists of two parts: he first makes a normal move with one of his pieces. No captures are made, and check is disregarded. No piece may move to a goal, i.e., to e1 or e9. But rooks and queens may move across it, e.g. from d1 to f1.
 
After its move, the player must, if he can, kick the ball. A piece can kick the ball if the ball is adjacent to it, i.e., a kings move away.
 
The ball moves in the same way as the piece that kicks the ball, and the ball must be moved directly away from the piece. Also, the ball cannot be moved to or over occupied squares (except when a knight kicks the ball). For instance, a rook on a3 can kick a ball on a4 to squares a5, a6, a7, a8, a9, as long as the ball isn't moved to an occupied square; but a rook on a3 cannot kick a ball on b4. A knight can kick the ball to any square, a knight-move away from the square where the ball was before the kick, but not to a square, adjacent to the knight. It is not allowed to kick the ball into or across the goal from a square on the 1st or 9th row.
 
When the ball is kicked to a square adjacent to another piece of the same player, the player may (but haven't) make another kick. If after a second kick, a third kick is possible, the player may also make this third kick, and similar for successive kicks. To pass additional kicks please use the pass symbol or the pass command in the play menu.
 
In the original football chess an infinite number of passes, in order to draw the game, is not allowed. Here this rule is implemented by the rule that repetition with the same player on the play is a loss.