Runner puzzle on reaction speed and ability in mathematics. You control a cube that moves towards math blocks. Some blocks adds points to your score, others are subtracting your points. You move in three lanes between which you can jump to get the best result or avoid subtraction and division blocks. As soon as your score reaches a negative value, the game will be over and your record will be saved for later overcoming. Also, you may come across decisive blocks, for which you should be well prepared ... The game has several difficulty modes for a larger challenge.Enjoy your game.