This is a logical game similar to Tic Tac Toe, but with a 5 x 5 grid instead of a 3 x 3. One can play alone by tapping the Rnd button, or with somebody else. There are always two players: player O and player X. The winner is the one who can first put 5 Xs or 5 Os side by side horizontally, vertically or diagonally.