Yosumin!

Yosumin is a tile matching puzzle game, where the player creates squares or rectangles with four identical tiles on the vertices. The main game screen shows a grid with several different shapes on each cell. The player has to click on a pair, by either selecting each tile or clicking and dragging from one to the other, to create a quadrilateral selection and make them disappear. All the tiles within the perimeter of the selected field become of the same type of the vertices tiles. Since the grid...