Sum-Squares

In Sum-Squares, fill in the missing squares to match the totals at the end of each row and column! Jump into an assortment of unique modes:

Standard - Pick a grid size and difficulty, then solve the missing squares as fast as you can! The better your logical deduction skills, the more points you'll earn.

Time Attack - Race against the clock to see how many grids you can complete before time runs out!

Grid Blitz - The grids are small in this mode, but your deduction skills will be put on full display in this test of speed and accuracy!

This free-to-play, addictive puzzle game is sure to be fun for all ages. It can be enjoyed as a casual experience or to help sharpen your quick addition skills.

Ready to test your logic? Download now and start solving!