Crack the number mystery, one equation at a time.
Four tiles. One target. Endless ways to solve it. Combine your number tiles with + − × ÷ and parentheses to hit the target exactly. How fast can you crack the Mathstery?
How to play
Simple to learn. Surprisingly deep. Hard to put down.
Read the target
Look at the target number on the right of the board.
Build an equation
Tap your four number tiles and the operators to build an equation.
Hit the target
Make it equal the target exactly — every tile must be used.
Beat the clock
Solve it fast and set a new personal record.
Why you'll love it
Pure puzzle solving — no accounts, no clutter.
Quick & satisfying
Puzzles you can solve in seconds — or agonize over for minutes.
Beat your best time
A built-in timer turns every solve into a personal challenge.
Track your stats
Follow your progress and chase your fastest solves.
Endless variety
New challenges every round — no two puzzles feel the same.
Easy to learn
An interactive tutorial gets you solving in under a minute.
No accounts, no ads
No sign-ups, no tracking — just you and the numbers.
Take a look
Tactile tiles, a clean board, and a satisfying win screen.
Think you've got the numbers?
Warm up your brain over coffee or sneak in a quick mental workout.
Solve the Mathstery