Clear the grid.
Keep your calm.
Sumistry is a relaxing but strategic puzzle: pair numbers that are identical or add up to ten — or chain three or more tiles into a perfect ten — clear rows, build combos, and plan your way to a perfectly empty board.
3 + 7 makes ten · 4 and 4 match — empty cells never block the way.
Why you'll keep coming back
Easy to learn, deep to master
One rule, four directions — horizontal, vertical, diagonal, and wrapping around row ends. Chain three or more connected tiles into an exact ten for bigger clears. Every move reshapes the board.
Daily Puzzle
One shared board a day, the same for everyone. Clear it fully to keep your streak alive.
Calm by design
No timers, no pressure, no penalties for exploring. Gentle sounds and haptics make every match satisfying.
Truly offline
No account, no ads, no data collection. Your game lives on your device — play anywhere.
Dark themed
Designed dark-first, easy on the eyes for a late-night puzzle or a quick commute session.
Smart hints & undo
Stuck? Hints point to the strongest move, and undo lets you rewind without losing the run.