Eighteen sudoku puzzles to print: six easy, six medium and six hard, with the answers at the end. Each level fits on one A4 or Letter page. Every puzzle has exactly one solution.
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Easy printable sudoku
40 starting numbers. A gentle warm-up: most squares can be filled by checking one row, column or box.
3
5
4
1
7
7
1
2
3
4
7
1
3
9
5
6
5
2
1
4
8
6
4
8
1
2
6
8
3
9
7
4
8
3
6
9
1
2
4
3
Easy 1
8
1
7
2
3
4
9
7
8
5
4
7
9
2
7
9
5
1
8
8
4
7
8
7
4
5
9
2
3
6
1
3
4
8
5
1
5
9
2
4
Easy 2
7
2
6
8
7
4
3
1
5
9
8
8
5
4
2
7
1
3
8
5
9
6
7
1
3
8
5
7
8
2
1
6
5
3
4
3
1
4
6
2
Easy 3
3
5
9
1
2
3
5
2
6
1
9
4
5
1
2
2
8
9
4
7
1
1
9
8
3
2
4
8
9
3
1
3
5
7
6
5
2
3
9
1
Easy 4
7
5
4
3
9
3
6
7
8
6
7
4
3
2
1
3
4
7
4
6
4
8
5
1
3
3
2
8
6
4
8
3
2
8
2
1
3
9
5
4
Easy 5
1
7
3
2
9
6
7
2
9
8
2
8
9
7
6
4
3
1
7
5
2
1
9
3
5
8
3
1
4
7
5
1
7
8
2
8
8
4
5
9
Easy 6
Medium printable sudoku
32 starting numbers. You will need to look at rows, columns and boxes together.
9
6
1
4
4
6
7
9
3
1
6
4
2
1
3
1
8
3
4
5
2
1
2
1
9
6
8
3
5
1
2
6
Medium 1
1
9
5
2
4
6
7
3
8
8
6
8
9
8
3
5
4
5
6
4
3
7
5
6
9
9
1
4
6
2
9
7
Medium 2
3
4
7
3
4
6
1
9
8
2
2
7
8
3
6
3
8
9
5
1
6
4
9
1
4
5
2
1
5
9
2
7
Medium 3
6
8
3
9
5
2
4
1
6
3
7
7
4
1
3
1
6
4
2
9
5
9
3
4
9
8
5
1
8
9
4
7
Medium 4
6
5
9
9
8
5
4
1
7
2
6
5
3
3
8
1
5
7
4
6
4
8
6
7
8
9
3
3
7
5
8
9
Medium 5
7
1
6
5
2
3
4
8
1
1
9
2
7
4
6
5
4
2
3
9
5
1
4
2
5
7
5
9
4
8
4
2
Medium 6
Hard printable sudoku
26 starting numbers. Pencil in notes and look for pairs before you commit.
3
5
4
7
8
5
6
3
7
2
4
2
4
1
3
1
7
2
5
4
2
1
4
8
9
5
Hard 1
3
2
1
8
3
2
1
7
2
3
5
9
5
1
8
7
9
9
6
6
8
2
5
4
7
6
Hard 2
4
2
5
6
3
5
6
8
9
2
5
6
7
2
1
9
8
9
4
4
6
5
8
4
9
8
Hard 3
3
1
2
4
7
3
6
2
9
7
6
3
4
5
8
7
5
1
2
4
5
8
8
5
2
9
Hard 4
7
5
3
2
1
5
8
4
9
5
1
4
5
8
9
3
7
7
8
3
1
6
1
7
2
5
Hard 5
4
5
2
8
8
1
9
6
6
2
7
2
8
9
6
3
5
2
6
8
4
3
9
4
8
1
Hard 6
Easy answers
2
3
5
4
8
6
9
1
7
8
6
9
5
7
1
2
4
3
4
7
1
3
2
9
5
6
8
5
9
3
2
1
4
8
7
6
6
4
8
9
3
7
1
2
5
7
1
2
6
5
8
3
9
4
9
5
7
1
4
3
6
8
2
3
8
6
7
9
2
4
5
1
1
2
4
8
6
5
7
3
9
Easy 1 answer
8
5
1
6
7
3
4
9
2
6
2
3
1
4
9
7
8
5
4
7
9
5
2
8
6
3
1
2
3
7
9
5
6
1
4
8
5
6
8
4
3
1
2
7
9
1
9
4
2
8
7
5
6
3
7
4
5
8
9
2
3
1
6
9
1
2
3
6
4
8
5
7
3
8
6
7
1
5
9
2
4
Easy 2 answer
1
5
7
9
2
8
6
4
3
2
6
8
7
4
3
1
5
9
9
3
4
6
5
1
2
7
8
8
9
5
4
6
2
3
1
7
4
1
3
8
7
5
9
2
6
6
7
2
1
3
9
4
8
5
7
8
9
2
1
6
5
3
4
5
2
6
3
8
4
7
9
1
3
4
1
5
9
7
8
6
2
Easy 3 answer
3
7
4
8
5
9
1
2
6
9
1
6
7
2
4
3
8
5
5
2
8
3
6
1
7
4
9
4
3
5
6
1
2
9
7
8
2
8
9
4
7
5
6
1
3
7
6
1
9
8
3
2
5
4
8
9
2
1
4
6
5
3
7
1
4
3
5
9
7
8
6
2
6
5
7
2
3
8
4
9
1
Easy 4 answer
2
1
7
8
9
6
5
4
3
9
3
4
2
5
1
6
7
8
5
8
6
7
4
3
9
2
1
1
9
3
6
7
4
2
8
5
7
5
2
9
3
8
4
1
6
4
6
8
5
1
2
3
9
7
3
4
5
1
2
7
8
6
9
6
7
9
4
8
5
1
3
2
8
2
1
3
6
9
7
5
4
Easy 5 answer
1
7
5
6
8
4
3
2
9
3
4
6
7
2
9
8
1
5
2
8
9
5
3
1
7
6
4
4
9
3
1
6
7
5
8
2
7
1
2
4
5
8
9
3
6
6
5
8
3
9
2
1
4
7
5
6
4
9
1
3
2
7
8
9
2
1
8
7
6
4
5
3
8
3
7
2
4
5
6
9
1
Easy 6 answer
Medium answers
9
6
1
8
2
5
4
7
3
8
7
4
3
1
9
5
2
6
3
2
5
4
7
6
8
9
1
5
9
3
2
4
1
6
8
7
6
4
2
9
8
7
1
3
5
1
8
7
6
5
3
9
4
2
4
3
6
5
9
2
7
1
8
2
1
9
7
6
8
3
5
4
7
5
8
1
3
4
2
6
9
Medium 1 answer
8
1
9
7
5
6
2
3
4
6
7
3
9
4
2
1
5
8
4
2
5
3
1
8
7
9
6
3
8
4
1
2
7
5
6
9
2
9
6
8
3
5
4
7
1
1
5
7
6
9
4
8
2
3
7
4
1
5
6
9
3
8
2
9
3
8
2
7
1
6
4
5
5
6
2
4
8
3
9
1
7
Medium 2 answer
8
1
6
2
5
3
9
7
4
7
3
4
6
1
9
8
5
2
2
5
9
4
7
8
3
6
1
6
4
3
8
9
2
5
1
7
5
2
8
7
6
1
4
3
9
1
9
7
3
4
5
6
2
8
4
7
5
1
8
6
2
9
3
3
6
1
9
2
4
7
8
5
9
8
2
5
3
7
1
4
6
Medium 3 answer
1
6
8
3
9
7
4
5
2
4
5
2
1
6
8
9
3
7
7
3
9
5
2
4
6
1
8
3
1
7
6
4
5
2
8
9
8
4
6
2
1
9
3
7
5
2
9
5
7
8
3
1
4
6
6
7
4
9
5
1
8
2
3
5
2
1
8
3
6
7
9
4
9
8
3
4
7
2
5
6
1
Medium 4 answer
8
6
5
1
3
4
9
7
2
9
2
3
8
5
7
4
1
6
7
1
4
2
6
9
5
8
3
3
4
8
7
1
2
6
5
9
5
9
2
6
8
3
7
4
1
1
7
6
9
4
5
2
3
8
2
5
1
4
9
8
3
6
7
4
8
9
3
7
6
1
2
5
6
3
7
5
2
1
8
9
4
Medium 5 answer
7
3
9
5
4
1
8
6
2
5
1
2
3
6
8
4
9
7
4
8
6
7
9
2
3
1
5
1
9
3
2
5
7
6
8
4
6
7
5
1
8
4
2
3
9
2
4
8
9
3
6
5
7
1
8
6
1
4
2
9
7
5
3
3
2
7
6
1
5
9
4
8
9
5
4
8
7
3
1
2
6
Medium 6 answer
Hard answers
8
3
5
2
6
7
9
1
4
2
4
7
8
1
9
3
5
6
6
1
9
5
3
4
8
7
2
1
7
2
3
5
8
4
6
9
5
6
3
9
4
2
1
8
7
9
8
4
6
7
1
5
2
3
3
9
1
7
2
5
6
4
8
7
5
6
4
8
3
2
9
1
4
2
8
1
9
6
7
3
5
Hard 1 answer
8
3
5
6
4
9
2
1
7
1
9
7
2
8
3
5
6
4
6
2
4
5
1
7
8
9
3
4
1
2
7
9
6
3
8
5
7
6
9
8
3
5
4
2
1
5
8
3
1
2
4
6
7
9
9
7
6
3
5
8
1
4
2
3
4
1
9
6
2
7
5
8
2
5
8
4
7
1
9
3
6
Hard 2 answer
4
2
1
9
8
5
3
6
7
3
7
5
6
4
1
9
8
2
6
8
9
2
7
3
4
1
5
8
9
4
5
1
6
7
2
3
2
1
3
7
9
4
6
5
8
7
5
6
8
3
2
1
9
4
1
3
2
4
6
8
5
7
9
5
6
7
3
2
9
8
4
1
9
4
8
1
5
7
2
3
6
Hard 3 answer
7
5
9
3
8
6
4
1
2
2
8
1
4
9
7
6
5
3
4
3
6
1
2
5
9
8
7
5
2
4
8
3
9
7
6
1
6
1
3
7
4
2
5
9
8
8
9
7
5
6
1
3
2
4
1
4
2
9
5
3
8
7
6
9
7
8
6
1
4
2
3
5
3
6
5
2
7
8
1
4
9
Hard 4 answer
7
9
5
8
1
3
4
2
6
6
2
1
4
5
7
8
3
9
8
4
3
2
9
6
5
7
1
4
1
7
9
6
2
3
5
8
2
8
9
1
3
5
6
4
7
5
3
6
7
4
8
9
1
2
3
6
8
5
2
1
7
9
4
9
5
2
6
7
4
1
8
3
1
7
4
3
8
9
2
6
5
Hard 5 answer
4
5
9
7
6
3
1
2
8
8
7
3
2
5
1
9
4
6
6
1
2
9
8
4
7
5
3
9
3
6
1
4
2
8
7
5
5
2
4
3
7
8
6
1
9
7
8
1
6
9
5
4
3
2
1
4
8
5
3
9
2
6
7
2
6
5
8
1
7
3
9
4
3
9
7
4
2
6
5
8
1
Hard 6 answer
For teachers and parents
You are welcome to print these puzzles for your class, club or family, as many copies as you need. Easy puzzles suit children from about age 8 who know the rules; medium and hard puzzles suit older students and adults. A short sudoku is a calm start to a lesson and practises step-by-step logic.
How to solve a sudoku
Fill the grid so every row, every column and every 3 by 3 box contains the numbers 1 to 9 once each. Start with the rows, columns or boxes that already have the most numbers. Write small notes for squares with two or three possible numbers, and look for a number that can only go in one place. For more methods, read our sudoku solving tips.