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Play free KenKen puzzles online — the addictive math & logic brain game. Solve 3×3 to 9×9 grids, compete in 1v1 matches, earn an Elo rating, and track your progress.
📖 How to PlayRace against another player. Fast matchmaking guaranteed!
★ Default ModeNo opponent, no pressure. Choose size & difficulty freely.
Race the clock! Solve as many as you can in 5 or 60 minutes.
Teachers: Create homework. Students: Complete tasks.
Improve logic, math, and pattern recognition skills.
Detailed stats, Elo rating system, and achievement badges.
Global Ranking Competition
KenKen is a math-based logic puzzle invented by Japanese educator Tetsuya Miyamoto in 2004. It combines arithmetic with Sudoku-like grid logic, making it perfect for players of all ages who want to boost their mathematical thinking and problem-solving skills.
Master addition, subtraction, multiplication, and division naturally.
Develop deductive thinking through constraint-based puzzles.
Used in classrooms worldwide to make math fun and engaging.
Addictive gameplay that keeps you coming back for more.
PuzzleElo has become my daily brain workout. The 1v1 matches are incredibly addictive, and I've improved my mental math significantly!
As a math teacher, I use PuzzleElo assignments with my students. They love competing on the class leaderboard while learning arithmetic!
The Elo rating system keeps me motivated. It's satisfying to see my ranking improve as I get better at solving puzzles faster.
Yes! PuzzleElo offers unlimited free practice mode and daily puzzles. Premium membership unlocks additional features like detailed analytics, larger puzzle sizes, and an ad-free experience.
We offer puzzles from 3×3 (beginner-friendly) to 12×12 (expert level). Each size has its own Elo rating, so you can progress at your own pace.
Your Elo rating is calculated based on puzzle difficulty and completion time. Solving harder puzzles faster earns you more points, while easier puzzles or slower times yield fewer gains. Each puzzle size has its own rating curve!
Join thousands of players improving their math and logic skills every day.
Start Playing Now — It's Free!