Sudoku Dragon

Sudoku puzzles

Number 9

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.

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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

Possibility coding
Our unique display grid not only shows you what allocations are possible for each square but also uses color coding to let you see immediately why an allocation is or is not possible.
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Sudoku puzzle solver

Sudoku Dragon

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

Today’s Quotation

愚公移山 The foolish old man who moved mountains. Anything can be achieved with persistence. The old story is that an old man wanted to move a mountain that blocked his path. Despite widespread cynicism he and his descendents gradually wore down the mountain. Mao Zedong used this proverb to persuade people that the seemingly impossible was achievable. One version of the story has the gods taking pity on the old man and removing the mountain with mighty powers.”

Ancient Proverb (China)
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