Expert Sudoku is a game for experienced Sudoku players with a very high level of difficulty. This hardest Sudoku puzzle is characterized by the fact that only a few numbers are shown in the …

Extreme Sudoku offers five levels of fiendish sudoku puzzles that can be solved with logic and no guessing. You can print, save, or play online the puzzles rated from Evil to Extreme, and …

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Play unlimited sudoku puzzles online. Four levels from Easy to Evil. Compatible with all browsers, tablets and phones including iPhone, iPad and Android.

Extreme Sudoku is the most challenging version of the 9x9 grid puzzle game for the real puzzle masters! It's not just about following the basic rules - you've got to be a puzzle-solving expert …

Complete the entire sudoku puzzle with the correct numbers to win. Hard Sudoku differs from easier difficulties, in that there can be multiple spaces where the answer is not immediately …

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Easy Medium Hard Evil. Today's Variation JigSawDoku. Each Sudoku has a unique solution that can be reached logically without guessing. Enter digits from 1 to 9 into the blank spaces. Every …

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Train your brain by playing sudoku every day. Six difficulty levels, from beginner to diabolical.

Difficult sudoku puzzles to print or play online. Select a puzzle from this list if you are an experienced sudoku player.

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Sudoku Classic: 10 levels of classic Sudoku, each new level more difficult. The sudoku rules apply: you can enter numbers from 1 through 9 but every number can only occur once per row, …

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Challenge yourself with The Globe and Mail's sudoku and other puzzles