Two players ("red" and "green" take their turns on a 6x6 board. In the beginning the board is empty except for a red "1" in the upper left and a green "1" in the lower right.

Making a turn means setting one field of the board. Setting a field makes it assume the sum of the points of the 8 surrounding fields. But there is a catch: If the field is of the opponent's color, their score is subtracted rather than added. If the resulting score is positive, the field will get your color, else your opponent's color. The same happens to the global score, which is just a colored difference of the score of all fields on the board. If the score in the end is red, red wins. If it is green, green wins. If it is black (0), it is a draw.

License: free