Sudoku puzzles

Learn all about Sudoku puzzles with our in-depth information about Sudoku, its fascinating origins, solution strategies (up to advanced level) and theory.

Let our animated guides take you step-by-step through the many and varied strategies for solving Sudokus.

Every day we publish unique, free puzzles on this site (Standard, Word, Samurai and Jigsaw types) that can also be picked up automatically with your news reader.

A unique variation of the basic puzzle is provided here, each Sudoku can include the Sudoku Stripe - which adds a new twist to solving Sudokus.

Today's Dragon Tip

Full backtrack
If you change your mind about a square allocation you can simply undo it, even if the allocation was done a few moves ago. Just use CTRL and the Z key to undo.
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Sudoku puzzle solver

Our message board forums is full of help and you can join for free and help out other puzzle solvers.

Today’s Quotation

“飞蛾投火 A moth throws itself into a flame - Heading for self destruction.”

Ancient Proverb (China)

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