Let me introduce your rival - gravity. Gravity is a force under which all things with mass are brought toward one another. This is also the case of planets, stars, or even galaxies, but we are not going that far away. We will focus on playing with physical attributes of certain shapes being stacked onto each other. Your goal will be to place all given shapes on the board in a way that they will not fall off. Pay attention to the shape of the next block, and decide where are you going to place it. Have fun.