Mills(Nine Men's Morris) is one of the oldest games known in history. Each of the two players has nine chips, which they put alternately on any free point of the game board. If a player gets three chips in a line - a mill, he removes one of the opponent's chips from the game board. You must remove a piece which is not in a mill, only if all of the opponent's chips are in mills, you can remove a piece even from a mill. When all the chips have been entered on the game board, the players move alternately one of their chips on a neighbouring place. If a player gets three of his chips in a line, he can remove one of the opponent's chips again. A mill can be opened and closed any number of times. If a player has only three chips left, he can jump with his chips to any free point of the game board. A player has lost, if he has only two chips left or if he is not able to make a move with one of his chips.