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Why Play X-Sudoku?

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Extra Challenge

The diagonal constraint adds a new layer of complexity that keeps even expert solvers engaged.

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Brain Training

Improve your logical thinking and pattern recognition with this enhanced puzzle format.

Faster Solutions

Paradoxically, the extra constraint can sometimes make puzzles easier to solve!

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Competition Ready

X-Sudoku appears in world championships. Practice here to compete globally.

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Play Anywhere

Our responsive design works perfectly on desktop, tablet, and mobile devices.

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fiendish sudoku Sudoku competitions are held globally, where speed solvers compete to finish complex grids in the shortest time possible. easy printable sudoku puzzles Sudoku competitions are held globally, where speed solvers compete to finish complex grids in the shortest time possible.

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fiendish sudoku Sudoku is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3x3 subgrids contain all of the digits from 1 to 9. summer sudoku Modern Sudoku was popularized by Nikoli in Japan in the 1980s. It has since become a global phenomenon, with daily puzzles appearing in newspapers and online platforms worldwide. 4x4 sudoku Many people enjoy solving Sudoku as a relaxing hobby. It provides a sense of accomplishment when a difficult puzzle is finally completed correctly.

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fiendish sudoku Many people enjoy solving Sudoku as a relaxing hobby. It provides a sense of accomplishment when a difficult puzzle is finally completed correctly. free printable sudoku games Sudoku is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3x3 subgrids contain all of the digits from 1 to 9.

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fiendish sudoku What is Sudoku and How to Play?

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