Recommended Games
Daily Diagonal Sudoku
It's just like standard sudoku, but with diagonals!
Daily Sudoku
Indulge in your daily habit with all the bells and whistles from our classic Sudoku.
Microsoft Sudoku
Use simple logic to fill in the puzzle's nine rows and nine columns with numerals 1-9.
10x10 Classic
Enjoy this modern twist on a classic, logical puzzle!
How to play Mathdoku
Play the best free online version of the popular game.
Test your number logic skills in games ranging from easy to hard!
Stretch your brain muscles with this addictive math puzzle game!
About Mathdoku
Math meets Sudoku in a whole new way!
KenKen players love MathDoku!