You are starting on left bottom corner with black colored bricks and your opponent on right top corner with white bricks.
To flood new territory, just select color of brick which you want to join you. All tiles of this color sharing border with you will join your team.
But remember, your phone is playing against you, so be quck and think strategically.
There are two game modes: Puzzle and Strategy.
In strategy mode you can not choose tile's color selected by your enemy before and your enemy can not use tile's color selected by you before.
You can see current results on the top of the screen, left one is your result, right one for your opponent.
Player can choose from three different puzzle sizes.