Tic tac toe, an English name, is a game of linking beads on a 3 * 3 grid. Its similar to Gobang.
Its named because the board doesnt draw a frame and the grid lines are arranged into tic tac toe. The game needs only paper and pen,
and then two players representing O and X will leave marks in the grid in turn (generally speaking, the first player is x). If any three marks form a straight line, it will win.