Black & White tiles runAre you fast as you think you are? Choose a color, Black or White, and then tap all the tiles of this color.? In the first level you'll find only 2 black & white tiles to tap – it's easy,? In the second level, 3 black & white tiles – not a real challenge,? In the third level, 4 black & white tiles – still, a piece of cake for you,? But in levels twelve, thir, fourth and so, dozens on dozens of black & white tiles – well, here you'll start to sweat…