Nine Men's Morris

Nine Men's Morris is one of the oldest games ever existed. Each player puts a fish onto the playing field. They are put in the middle or to the end of the line. When all the fishes are set, the players move there fishes in turns; one in a move along the lines to the adjacent empty space. The purpose of the shift is to put three pieces in a row and remove the fishes of your enemy. When one player has three fishes left, he gets the right to move any of his fishes to any vacant point; his partner has to move along lines until he has more than three fishes. None of the players can use one and the same mill (line) twice. He may recreate it for several times, but he takes away the rival's fish only for the first mill. The game is won if a player has two fishes left. If two mills are formed at once, two fishes are taken away.