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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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play 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. sudoku puzzle with solution 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 puzzle with solution 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.

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play Advanced Sudoku solving methods involve complex patterns like X-Wing, Swordfish, and XY-Wing. These techniques are often required for hard and expert level puzzles. new york sudoku hard To solve a Sudoku puzzle, one must look for cells where only one number is possible, or rows/columns/blocks where a specific number has only one possible placement. huge sudoku puzzle The rules of Sudoku are simple but the depth of the game is immense. Every well-posed Sudoku puzzle has a unique solution that can be reached through logical deduction. swordfish sudoku Many people enjoy solving Sudoku as a relaxing hobby. It provides a sense of accomplishment when a difficult puzzle is finally completed correctly. billions sudoku evil 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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