you place and swap your bricks of 3 blocks of the same color in left or right. You should be wise enough and create groups or both stacks to score points and gain levels. Move mouse up and down to place your bricks. Move mouse left and right to swap your bricks. Click left move button to push your bricks into the stack. The item on the right will tell you what the color of the bricks will be coming next. There is a bar in the middle of the two bricks. You should push down the bricks before the bar get red totally. Good luck!