It's a mathematical brain-teaser that will tease ur mind until it implodes. Ur goal is to select like-numbered cells and drag left or right to change their value. Your goal is to recreate the target arrangement in each level.
I recommend going through the in-game tutorial... unless u like having no idea what ur doing and failing at this game. It is tricky and for someone with a tired mind, it will probably push u to ur limits.
Move the number tiles around and puzzle ur way to the end. There are a lot of levels... so the end is not anywhere in sight.
