Go-bang

Game Rules

The game is played by two players on a grid.

The players take turns marking the spaces in the grid [O or X]. 
One of them can only use [O], the other can only use [X]. 

In order to win the game, a player must place five of their marks in a horizontal, vertical or diagonal row, while preventing the opponent from doing so.

The game is won by the player who manages to place five marks in a row.

Game On!