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Printable sudoku

Ten sudoku at five levels, plus four smaller grids for children. Every one comes with its answer key.

Each puzzle is checked by a solver before it reaches this page, and a puzzle is only published if it has exactly one solution. A sudoku with two answers is not a harder sudoku, it is a broken one: the answer key calls a perfectly valid grid wrong. The clue count under each puzzle is the real number of given digits, not a label.

Nine by nine

Gentle sudoku 1

45 clues given. Exactly one solution.

Sudoku275893159686175193458716234197321952763436792
Show the answersGentle sudoku 1, answer key

Gentle sudoku 2

45 clues given. Exactly one solution.

Sudoku458672731596927537823524647394517827615353647
Show the answersGentle sudoku 2, answer key

Easy sudoku 1

38 clues given. Exactly one solution.

Sudoku15632475618394743235276214958537829342
Show the answersEasy sudoku 1, answer key

Easy sudoku 2

38 clues given. Exactly one solution.

Easy sudoku 2
Show the answersEasy sudoku 2, answer key

Medium sudoku 1

32 clues given. Exactly one solution.

Medium sudoku 1
Show the answersMedium sudoku 1, answer key

Medium sudoku 2

32 clues given. Exactly one solution.

Medium sudoku 2
Show the answersMedium sudoku 2, answer key

Hard sudoku 1

28 clues given. Exactly one solution.

Hard sudoku 1
Show the answersHard sudoku 1, answer key

Hard sudoku 2

28 clues given. Exactly one solution.

Hard sudoku 2
Show the answersHard sudoku 2, answer key

Expert sudoku 1

27 clues given. Exactly one solution.

Expert sudoku 1
Show the answersExpert sudoku 1, answer key

Expert sudoku 2

26 clues given. Exactly one solution.

Expert sudoku 2
Show the answersExpert sudoku 2, answer key

Smaller grids for children

4 by 4 sudoku for children 1

6 clues given. Digits 1 to 4.

4 by 4 sudoku for children 1
Show the answers4 by 4 sudoku for children 1, answer key

4 by 4 sudoku for children 2

6 clues given. Digits 1 to 4.

4 by 4 sudoku for children 2
Show the answers4 by 4 sudoku for children 2, answer key

6 by 6 sudoku for children 1

15 clues given. Digits 1 to 6.

6 by 6 sudoku for children 1
Show the answers6 by 6 sudoku for children 1, answer key

6 by 6 sudoku for children 2

15 clues given. Digits 1 to 6.

6 by 6 sudoku for children 2
Show the answers6 by 6 sudoku for children 2, answer key

Want more? The sudoku generator makes a new one every click, at any level.

Read the guide: What makes a sudoku hard? We tested 500 puzzles by clue count.