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leetcode sudoku solver Modern Sudoku was popularized by Nikoli in Japan in the 1980s. It has since become a global phenomenon, with daily puzzles appearing in n

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

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

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leetcode sudoku solver 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. sudoku com tournament Sudoku variants like Killer Sudoku, Jigsaw Sudoku, and Sudoku-X provide additional challenges for players looking for something different from the classic version. tip for 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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