Make your brain smarter, 5 minutes a day
A focused collection of logic puzzles — pure, distraction-free, playable anytime
Featured
Start with these three — challenge your logic
Sudoku 9×9
Fill a 9×9 grid with digits 1-9 so each row, column, and 3×3 box contains every digit once. Six difficulty levels from beginner to extreme, with pencil marks, smart hints, and auto-check. Daily challenges plus online multiplayer — the world's most classic logic puzzle.
★ Popular24 Game (Standard)
Four random cards; use +, −, ×, ÷ and parentheses to make 24. Four difficulty levels with a timed mode, hints, and solution display. Daily challenges, 60-second blitz mode, real-time multiplayer duels, and combo scoring. The classic mental-math puzzle for global competition.
★ NewEquation Pyramid
A target number sits at the top. Pick three cells from the 3×3 grid below in order to build an equation equal to the target. Each cell carries an operator and a digit, so you reverse-engineer the formula. Levels progress, with hints and multiplayer battles. A brand-new challenge awaits.
6 hand-picked math games
Logic · Sudoku reasoning · Equation challenge — pick one and start
Why choose Math Duel？
Get back to the joy of the game itself — nothing in your way
100% Free
No login, no ads, no paywall — every game and feature is completely free.
Multiplayer
Real-time head-to-head duels in 24 Game, Sudoku and Equation Pyramid — challenge a friend anytime.
Global puzzles
The Daily Challenge is the same puzzle worldwide — beat the clock and climb the leaderboard against players everywhere.
Kid friendly
Healthy, educational content in a clean, distraction-free interface — fun for the whole family.