On a 10x8 playing field, 2 players start from the baseline with their 15 number tiles ranging in value from 1 to 16 (13 is missing). The goal is to reach the opponent's baseline with 3 stones, or to hit so many of the opponent's stones that he becomes unable to move. The number stones may be moved one square at a time. The special feature of the game is to arrange your number stones on the board in such a way that valid arithmetic operations (addition, subtraction, multiplication, division) are created. Example: with the number tiles 2, 14, 16 in a row, the arithmetic operation 2+14=16 can be represented. The first number piece of the calculation may skip the result of the calculation. If the reached field is occupied by a foreign number piece, this is beaten.