4 Blocks!!

In this tile-matching puzzle game, pieces of different shapes are falling down from the top of the game screen, one after the other. You have to move these pieces during their falling using the arrow keys to organize where it lands at the bottom of the game screen, in order to keep a maximum of empty space for the next pieces, because your objective is to get as much pieces as possible within the screen. Even moderate playing of 4 Blocks (half=an-hour a day for three months) boosts general cognitive functions such as critical thinking, reasoning, language and processing and increases cerebral cortex thickness.