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

Tentative impossibilities
To change the tentative impossibilities (numbers that can not go in a square) just press CTRL and the number you want to remove from the current square. To clear all tentative possibilities and impossibilities from the current square press the F7 key.
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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

“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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