sudoku pic 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 poss
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.
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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.
candidate mode sudoku
sudoku pic 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.
sudoku pic The Benefits of Playing Sudoku Daily
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sudoku pic Advanced Sudoku Solving Techniques
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sudoku pic What is Sudoku and How to Play?
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sudoku pic History of the Sudoku Puzzle
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sudoku pic The Benefits of Playing Sudoku Daily
sudoku pic Sudoku competitions are held globally, where speed solvers compete to finish complex grids in the shortest time possible. sudoku easy 4x4 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 pic What is Sudoku and How to Play?
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