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

Open a puzzle
Our puzzle files have the file type .sdk. You can open a puzzle in SudokuDragon by just double clicking on a puzzle file in Windows Explorer.
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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

“一步一个脚印儿 Every step leaves a footprint. Work steadily one step at a time in order to make solid progress.”

Ancient Proverb (China)

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