5×5 KenKen
Free printable 5×5 KenKen (Calcudoku) puzzles for a satisfying mix of logic and mental math. Every puzzle has a single unique solution. Play in your browser, print, or download the puzzle and answer key as a PDF.
Fill the grid with 1–5 so no number repeats in any row or column. Each outlined cage must combine to its target using the shown operation.
Click a cell, then pick a number.
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Test pure deductive reasoning with classic Japanese logic puzzles — cross sums, naval coordinate grids, inequality Latin squares, and pixel art nonograms.
KenKen (Calcudoku)
Caged arithmetic logic combining addition, subtraction & division
Learn How to Play, Solve & Teach 5×5 KenKen
What Is KenKen? A Beginner's Guide to the Sudoku-Meets-Math Puzzle
Learn what KenKen (Calcudoku) is and how to solve it, step by step. A friendly beginner's guide to the cages, the operations, and the simple logic tricks that crack every puzzle — play free online or print it.
Frequently asked questions
Is the KenKen generator free?+
Yes. Generate unlimited KenKen (Calcudoku) puzzles and play, print or download them for free — no account or signup required.
How do you play KenKen?+
Fill the grid so each row and column contains the numbers 1 to n with no repeats, like Sudoku. In addition, each outlined 'cage' shows a target and an operation, and the numbers in that cage must combine with that operation to reach the target.
What do the cage symbols mean?+
× means the cage's numbers multiply to the target, ÷ means they divide, − means they subtract, and + means they add. A cage with a single number and no symbol is a free gift — just write that number in.
Does every puzzle have one solution?+
Yes. Each puzzle is verified by a solver to have exactly one unique solution before it's shown to you.
What sizes are available?+
Three grid sizes — 4×4, 5×5 and 6×6 — with Easy, Medium and Hard settings that control how large and tricky the cages are.
How do I print a KenKen puzzle?+
Click Preview & Download, choose US Letter or A4, and download the PDF. It includes the puzzle plus a separate answer key page.