Make 24
Combine four numbers from 1 to 10. Use every number exactly once.
Make the numbers click.
Numchemy is a collection of tactile number puzzles. Pick a number, choose an operation, pick another number, and keep building until the target is yours.
Explore the gamesFree to play · No account required · Works offline
Make24
Four cards. Three moves. More than one way to think.
Four targets.
One simple gesture.
Every puzzle uses the same tap-first rhythm, so moving from a quick Make 24 to a deep Target 999 round feels natural.
Make 28
A wider number range gives the familiar four-card puzzle a fresh edge.
Make 48
Five numbers, more possible paths, and no need to use every card.
Target 999
Six numbers and a changing target from 101 to 999. Whole-number steps only.
Play at your pace—or race.
Practice
Take your time and learn each puzzle.
Daily
One official attempt for each game, refreshed every day.
Solo Sprint
Beat the clock across six puzzles, from Intro to Challenge.
Face-to-Face
Share one device and play from opposite sides of the table.
Made for a shared table.
Numchemy is designed for families and puzzle lovers, with large touch targets, color-independent feedback, and layouts for phones and tablets.
- Offline first
- Core puzzles never depend on a connection.
- Private by default
- Profiles, progress, and rankings stay on your device.
- Three languages
- Play in English, Japanese, or Simplified Chinese.
A puzzle should challenge you—not leave you stuck.
Find troubleshooting steps or send us a puzzle report from the app.