Calcudoku · Math Logic Puzzles

Razzle Puzzles

Contains ads

About this game

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

About Calcudoku math puzzles:

Every Calcudoku has a single solution that can be reached logically. Like Sudoku, 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 math 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 Sudoku variant, was originally invented in 2004 by Japanese math teacher Tetsuya Miyamoto.

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.

I like the game but it is too easy to accidentally input a number in the wrong square. A simple update that would help a bunch would be to deactivate the grid number selection when the calculator is activated. I find myself accidentally selecting a grid number when I intended to select the calculator numbers. Also, why not just provide the full function built-in calculator rather than the very limited calculator?

Hate the way this app is set up... I've played another game like this called Kenken and the way they allow you to fill in possible answers was so easy. This one was so confusing switching from possible answers to actual answers and I couldn't put possible answers into multiple boxes at once. Got so frustrated that I just deleted it. To the developers please take the time out to make this simpler because doing a 9x9 grid set for difficult is difficult enough.