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medium sudoku: free printable puzzles
the comfortable middle: enough clues to keep moving, enough gaps to make you think. 102 numbered puzzles in sets of six, answer key at the end, every one verified to have a single unique solution. prefer a screen? play sudoku in our arcade.
Medium Sudoku #1
fill every row, column, and 3x3 box with the digits 1 to 9 · one unique solution
| 2 | 8 | 9 | 4 | |||||
| 8 | 4 | |||||||
| 5 | 9 | 2 | 3 | 8 | ||||
| 4 | 7 | 9 | 5 | |||||
| 3 | 6 | |||||||
| 9 | 5 | 8 | 4 | |||||
| 9 | 7 | 3 | 2 | 6 | ||||
| 5 | 2 | |||||||
| 6 | 2 | 8 | 1 |
Medium Sudoku #2
fill every row, column, and 3x3 box with the digits 1 to 9 · one unique solution
| 6 | 1 | |||||||
| 6 | 2 | 5 | ||||||
| 2 | 4 | 7 | ||||||
| 6 | 2 | 3 | 7 | 9 | ||||
| 1 | 4 | 5 | 2 | 6 | ||||
| 8 | 9 | 1 | 5 | 4 | ||||
| 4 | 8 | 9 | ||||||
| 2 | 9 | 1 | ||||||
| 5 | 4 |
Medium Sudoku #3
fill every row, column, and 3x3 box with the digits 1 to 9 · one unique solution
| 8 | 2 | 5 | ||||||
| 7 | 3 | 8 | 4 | |||||
| 1 | 3 | 9 | 6 | 7 | ||||
| 8 | 9 | |||||||
| 4 | 2 | 5 | 1 | |||||
| 4 | 7 | |||||||
| 9 | 6 | 1 | 8 | 7 | ||||
| 7 | 3 | 1 | 8 | |||||
| 5 | 9 | 7 |
Medium Sudoku #4
fill every row, column, and 3x3 box with the digits 1 to 9 · one unique solution
| 5 | ||||||||
| 7 | 5 | 2 | ||||||
| 5 | 7 | 2 | 4 | 1 | 6 | 3 | ||
| 9 | 4 | 2 | ||||||
| 1 | 7 | 8 | ||||||
| 2 | 5 | 4 | ||||||
| 8 | 1 | 5 | 2 | 7 | 3 | 6 | ||
| 6 | 7 | 8 | ||||||
| 1 |
Medium Sudoku #5
fill every row, column, and 3x3 box with the digits 1 to 9 · one unique solution
| 6 | 9 | 4 | ||||||
| 8 | 3 | 4 | ||||||
| 7 | 9 | 1 | 6 | |||||
| 7 | 9 | 2 | 4 | |||||
| 5 | 7 | 3 | 9 | |||||
| 4 | 8 | 1 | 6 | |||||
| 2 | 7 | 3 | 6 | |||||
| 4 | 9 | 8 | ||||||
| 6 | 1 | 4 |
Medium Sudoku #6
fill every row, column, and 3x3 box with the digits 1 to 9 · one unique solution
| 1 | 5 | 2 | ||||||
| 6 | ||||||||
| 9 | 4 | 5 | 6 | 8 | 7 | 1 | ||
| 5 | 6 | 4 | ||||||
| 7 | 8 | 1 | 6 | |||||
| 4 | 3 | 7 | ||||||
| 4 | 6 | 8 | 3 | 7 | 2 | 9 | ||
| 4 | ||||||||
| 2 | 7 | 8 |
Medium Sudoku: answer key
solutions for puzzles 1 to 6
| 7 | 2 | 6 | 3 | 1 | 8 | 9 | 4 | 5 |
| 8 | 3 | 9 | 7 | 4 | 5 | 2 | 6 | 1 |
| 5 | 1 | 4 | 9 | 2 | 6 | 7 | 3 | 8 |
| 4 | 8 | 7 | 2 | 6 | 9 | 1 | 5 | 3 |
| 2 | 5 | 3 | 4 | 8 | 1 | 6 | 7 | 9 |
| 6 | 9 | 1 | 5 | 7 | 3 | 8 | 2 | 4 |
| 9 | 7 | 5 | 1 | 3 | 2 | 4 | 8 | 6 |
| 1 | 4 | 8 | 6 | 5 | 7 | 3 | 9 | 2 |
| 3 | 6 | 2 | 8 | 9 | 4 | 5 | 1 | 7 |
| 6 | 7 | 5 | 3 | 9 | 4 | 8 | 1 | 2 |
| 8 | 9 | 3 | 6 | 1 | 2 | 4 | 5 | 7 |
| 2 | 4 | 1 | 5 | 7 | 8 | 9 | 3 | 6 |
| 5 | 6 | 2 | 4 | 8 | 3 | 7 | 9 | 1 |
| 3 | 1 | 4 | 7 | 5 | 9 | 2 | 6 | 8 |
| 7 | 8 | 9 | 1 | 2 | 6 | 5 | 4 | 3 |
| 1 | 3 | 7 | 2 | 4 | 5 | 6 | 8 | 9 |
| 4 | 2 | 8 | 9 | 6 | 1 | 3 | 7 | 5 |
| 9 | 5 | 6 | 8 | 3 | 7 | 1 | 2 | 4 |
| 6 | 4 | 7 | 8 | 2 | 3 | 1 | 5 | 9 |
| 9 | 2 | 5 | 7 | 6 | 1 | 3 | 8 | 4 |
| 1 | 8 | 3 | 4 | 5 | 9 | 6 | 7 | 2 |
| 5 | 1 | 8 | 9 | 7 | 2 | 4 | 3 | 6 |
| 4 | 7 | 2 | 3 | 8 | 6 | 5 | 9 | 1 |
| 3 | 6 | 9 | 5 | 1 | 4 | 7 | 2 | 8 |
| 2 | 9 | 6 | 1 | 3 | 5 | 8 | 4 | 7 |
| 7 | 3 | 1 | 2 | 4 | 8 | 9 | 6 | 5 |
| 8 | 5 | 4 | 6 | 9 | 7 | 2 | 1 | 3 |
| 1 | 8 | 3 | 5 | 2 | 6 | 4 | 7 | 9 |
| 4 | 6 | 9 | 1 | 3 | 7 | 5 | 8 | 2 |
| 5 | 7 | 2 | 9 | 8 | 4 | 1 | 6 | 3 |
| 9 | 5 | 6 | 4 | 1 | 8 | 3 | 2 | 7 |
| 3 | 4 | 1 | 6 | 7 | 2 | 8 | 9 | 5 |
| 7 | 2 | 8 | 3 | 9 | 5 | 6 | 1 | 4 |
| 8 | 1 | 5 | 2 | 4 | 9 | 7 | 3 | 6 |
| 6 | 9 | 7 | 8 | 5 | 3 | 2 | 4 | 1 |
| 2 | 3 | 4 | 7 | 6 | 1 | 9 | 5 | 8 |
| 1 | 3 | 6 | 5 | 9 | 4 | 7 | 8 | 2 |
| 5 | 2 | 8 | 3 | 7 | 6 | 9 | 1 | 4 |
| 7 | 9 | 4 | 1 | 2 | 8 | 6 | 5 | 3 |
| 8 | 7 | 3 | 9 | 6 | 2 | 1 | 4 | 5 |
| 6 | 5 | 1 | 7 | 4 | 3 | 2 | 9 | 8 |
| 2 | 4 | 9 | 8 | 5 | 1 | 3 | 6 | 7 |
| 9 | 1 | 2 | 4 | 8 | 7 | 5 | 3 | 6 |
| 4 | 6 | 5 | 2 | 3 | 9 | 8 | 7 | 1 |
| 3 | 8 | 7 | 6 | 1 | 5 | 4 | 2 | 9 |
| 1 | 7 | 5 | 4 | 8 | 2 | 9 | 3 | 6 |
| 8 | 3 | 6 | 7 | 1 | 9 | 5 | 2 | 4 |
| 2 | 9 | 4 | 5 | 6 | 3 | 8 | 7 | 1 |
| 5 | 8 | 1 | 9 | 7 | 6 | 3 | 4 | 2 |
| 3 | 2 | 7 | 8 | 4 | 1 | 6 | 5 | 9 |
| 6 | 4 | 9 | 3 | 2 | 5 | 1 | 8 | 7 |
| 4 | 6 | 8 | 1 | 3 | 7 | 2 | 9 | 5 |
| 7 | 5 | 2 | 6 | 9 | 8 | 4 | 1 | 3 |
| 9 | 1 | 3 | 2 | 5 | 4 | 7 | 6 | 8 |
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