Sample problems of Sudoku puzzle

Sample problemsRulesHow to play

Sample problems

Here are sample problems of Sudoku. You need Adobe Flash Player to enjoy these Sudoku puzzles.

 

ProblemSizeLevelAuthorSolution
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Sample problem 1
9x9

Easy

AikoSample solution
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Sample problem 2
9x9

Easy

-4Sample solution
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Sample problem 3
9x9

Easy

T.KarinoSample solution
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Sample problem 4
9x9

Easy

Hone RokuoSample solution
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Sample problem 5
9x9

Easy

aquablueSample solution
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Sample problem 6
9x9

Easy

Hone RokuoSample solution
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Sample problem 7
9x9

Easy

-4Sample solution
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Sample problem 8
9x9

Easy

POTSSample solution
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Sample problem 9
9x9

Easy

Yuichi SaitoSample solution
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Sample problem 10
9x9

Medium

Yuichi SaitoSample solution
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Sample problem 11
9x9

Medium

cubic functionSample solution
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Sample problem 12
9x9

Medium

CastySample solution
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Sample problem 13
9x9

Medium

MomotereuSample solution
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Sample problem 14
9x9

Medium

KomiedaSample solution
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Sample problem 15
9x9

Medium

Ryohei NakaiSample solution
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Sample problem 16
9x9

Medium

aquablueSample solution
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Sample problem 17
9x9

Medium

akasyoSample solution
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Sample problem 18
9x9

Hard

SAKAMOTO, NobuyukiSample solution
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Sample problem 19
9x9

Hard

CastySample solution
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Sample problem 20
9x9

Hard

-4Sample solution

Members of nikoli.com can enjoy new puzzles everyday at your own exclusive page. For the details, please check the "About nikoli.com" page.

We are sometimes publishing free puzzle problems at the members area.

Sudoku books

If you would like to enjoy Sudoku puzzles on paper, You can buy Sudoku books at the Purchase Nikoli Books page at the Nikoli official site.

Super Hard SudokuSudoku CommunicationBeginner Sudoku by NikoliSudoku with hints to do themFresh SudokuGlorious Sudoku (a bit hard)