Objective of the game:
Block your opponent move so that in the end there are no move left for him to take.
By doing this you win the game.
1. First Move can be in any of the grid.
2. Future move should be in chain (i.e. beside any of the previous move(horizontal,vertical and cross blocks))
3. You cannot override any of the fill grids.
Good Luck! Keep playing and block me.