Zero Sum

Zero Sum is a mathematical puzzle game with simple rules, but requires strategic thinking. The playing field consists of 3×3 cells. The goal of the game is to leave exactly one non—zero square on the field. To complicate matters, there is a mode with a 4x4 field, as well as a time-limited blitz mode.The game perfectly trains logic and mathematical abilities, offering both a calm solution to the puzzle and a gambling mode for time.