GridSum - Math Puzzle

A fresh number puzzle every day. Select cells to hit your targets — logic only, no guessing. Easy to learn, hard to put down.

Train your mind with GridSum, the satisfying number puzzle game that's easy to learn and hard to master.

How it works: Select cells in a 7x7 grid so that each row and column adds up to its target number. Every puzzle has exactly one solution, solvable by pure logic.

What's inside:

• Daily Puzzle: a fresh challenge every day
• Puzzle Packs: hundreds of puzzles across 20 hand-crafted packs
• Three difficulty levels: Easy for a quick fix, Medium to sharpen your focus, Hard to truly test your logic
• Hints: stuck? Reveal a cell to get back on track
• Personal bests: beat your time and set new records
• Coin rewards: earn coins for every puzzle you solve

Why you'll love it: GridSum hits the sweet spot between a quick brain teaser and a deep mental workout. Challenging enough to keep you engaged, rewarding enough to keep you coming back.

Perfect for a morning commute, a coffee break, or winding down at night.

Download free and start solving today.