Play Free KenKen Puzzles Online
Train your math and logic skills with 300 handcrafted puzzles across 7 grid sizes and 4 difficulty levels. No signup required.
Choose Your Grid Size
From beginner-friendly 3×3 grids to mind-bending 9×9 challenges.
What is KenKen?
KenKen is a mathematical logic puzzle invented by Japanese mathematics teacher Tetsuya Miyamoto in 2004. The name comes from the Japanese word meaning "wisdom squared" — a fitting description for a puzzle that combines arithmetic with logical reasoning.
Like Sudoku, KenKen requires you to fill a grid so that each row and column contains every digit exactly once (1 through N for an N×N grid). But KenKen adds a mathematical twist: cells are grouped into cages marked with a target number and an arithmetic operation (+, −, ×, or ÷). The digits in each cage must produce the target when combined using the specified operation.
What sets KenKen apart from other number puzzles like Kakuro is its unique blend of math skills and logical deduction. Smaller grids (3×3 and 4×4) make excellent introductions for students and kids, while larger grids (7×7 through 9×9) challenge even experienced puzzle solvers.
Our collection features 300 free puzzles across seven grid sizes and four difficulty levels. Whether you're new to KenKen or an experienced solver looking for a strategic challenge, you'll find puzzles tailored to your skill level. Try our daily challenge to build a solving streak, or browse the full library to pick exactly what you want.