Calcudoku · Math Sudoku Puzzle

Razzle Puzzles

Contains ads

About this game

Enjoy Calcudoku, a fun number puzzle game that tests your math and logic! If you like Killer Sudoku puzzles, you will love Calcudoku!

About Calcudoku number puzzles:

Every Calcudoku has a single solution that can be reached logically. Like Sudoku, Killer Sudoku and KenKen®, fill in the grid such that no two digits repeat in any column or row. Use the shapes in the grid as your guide. Each shape contains a number equaling the product of the shapes' digits. For example a shape with three cells containing the number 6 may have cell values 1, 2 and 3, as 1 × 2 × 3 = 6. Challenge yourself further with larger grids for experts, up to 9x9 size!

Calcudoku offers thousands of fun number puzzles with features to help you solve each puzzle. Enjoy an unlimited number of hints and checks in case you get stuck. Use the calculator tool to help with multiplication and division against large numbers. And rest assured that all puzzle games are automatically saved and restored letting you stop and restart games with ease.

Track your best and average solve times over history with our stats tracker.

Calcudoku, a popular Killer Sudoku variant, was originally invented in 2004 by Japanese math teacher Tetsuya Miyamoto. Also known as KenKen® and Mathdoku, Calcudoku brings to you over 15,000 unique puzzle grids!

You can play Calcudoku by Razzle Puzzles on your phone and tablet. Enjoy Calcudoku online or in offline mode!

For support please contact us at [e-mail] or visit RazzlePuzzles.com

Ratings and reviews

Been playing this to use my brain on days I otherwise don't have to, and I really like how the app lets you personalize your experience. You can use the built in calculator, and check to make sure your answers are correct in the options as you're playing, or you can opt for a bigger challenge by not checking until it's all filled out. I like it a lot and would recommend it to anyone who likes more laid-back math puzzles.

Would be 4 or 5 stars with an undo button. While using the calculator, it's easy to accidentally fill in an actual cell and you won't know which you did. Great game on paper! But this GUI has too many picayune quirks and tics. You can lose by forced gui mistakes easier than by flawed logic. Once they fix the kinks, I would pay for a premium version.

This is a good game, just a shame about the ads. Yes it's either watch ads or pay - I get it, but when the advert is over why can't we go back to the game without having to go to ad part 2 and ad part 3? That's when it goes over the line from acceptable necessity to overbearing annoyance. I'm sticking with it for a while, but can't see me keeping it for the long term.