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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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e 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.

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e 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. tricks to solve hard sudoku There are several difficulty levels in Sudoku, ranging from easy for beginners to expert for seasoned players. Solving techniques include scanning, cross-hatching, and identifying candidate numbers. sudoku blank grid printable There are several difficulty levels in Sudoku, ranging from easy for beginners to expert for seasoned players. Solving techniques include scanning, cross-hatching, and identifying candidate numbers. sudoku christmas 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. 4x4 sudoku for kids 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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