SumSquare is a fun and brain-testing mathematical grid puzzle game.


Complete the grid with numbers. Each row and column presents a specific operation (+, -, ×, ÷, average, square) alongside a target result. Execute the operation sequentially (left-to-right, top-to-bottom) to achieve each target and solve the puzzle.

  • SumSquare!

    A satisfying math grid puzzle that turns quick thinking into a daily habit.

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  • Solve the Grid

    Fill in the numbers so every row and column hits its target.

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  • Solve the Grid

    Fill in the numbers so every row and column hits its target.

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  • Simple Rules, Real Challenge

    Use +, -, ×, ÷, average, and square - easy to learn, tough to perfect.

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  • Validate When You're Ready

    Check your work anytime - refine your entries and lock in the solve.

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  • Player Stats

    Track your best times, top scores, and progress as you improve.

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  • Game Center

    Compete on Daily leaderboards and unlock achievements as you play.

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