Parity is a free challenging math puzzle game with 200+ carefully designed levels in 6 level packages. Each levels would teach you new techniques to solve harder levels and parity is the key to win.

⚫ No ads for basic usage: you would not see any ads unless you try to get hints or unlock locked levels.
⚫ Various game rules: In each level packages, new rules come into play.
⚫ Challenging level designs: Puzzles are all carefully designed with different game mechanisms.