KenKen-Style Puzzles

KenKen puzzles — also called mathdoku — challenge you to fill a grid with digits so each row and column is unique and every boldly-caged region equals a target using arithmetic.

Subcategories

What is a KenKen puzzle?

KenKen is a branded arithmetic-logic puzzle invented by Japanese mathematician Tetsuya Miyamoto. Our mathdoku puzzles follow the exact same rules.

Is KenKen free here?

Yes — all our KenKen-style mathdoku puzzles are free to play and print with no registration required.

What grid sizes are available?

We offer KenKen-style grids from 3x3 up to 9x9, covering easy beginner puzzles to expert-level challenges.