Independence Day - Hard Sudoku (American Flag)
This Hard Sudoku puzzle features a 9x9 Sudoku puzzle to solve and a picture of the American flag to color. The Sudoku puzzle is printable and changes each time you visit or click on the Refresh button below.
With this Sudoku puzzle generator, you can easily create new puzzles to use in the classroom or at home.
The puzzle also has an optional answer key checkbox that you can select, if you wish to print out the answer key.
Level of Difficulty: Hard
Sudoku Strategy: To solve the puzzle, you need to fill in the missing numbers (from 1 to 9) so that each column, row and 3x3 subgrid does not contain the same number more than once.
Independence Day Sudoku Puzzle
Instructions: Fill in the missing numbers (from 1 to 9) to solve the Sudoku puzzle. Each column, row and 3x3 subgrid must only contain each number once.
| 3 | 7 | 2 | 1 | 8 | 9 | |||
| 1 | 5 | 9 | 6 | 7 | 2 | |||
| 9 | 4 | 8 | 6 | 1 | 7 | |||
| 6 | 9 | 8 | 1 | 3 | 7 | 4 | ||
| 4 | 3 | 7 | 5 | 9 | 8 | 6 | ||
| 2 | 4 | 3 | 5 | |||||
| 2 | 8 | 4 | 7 | |||||
| 5 | 8 | 6 | 7 | 2 | 4 | 9 | 3 | |
| 7 | 4 | 3 | 9 | 2 | 6 |
Independence Day Sudoku Key
| 3 | 7 | 6 | 4 | 2 | 1 | 8 | 5 | 9 |
| 1 | 8 | 5 | 9 | 6 | 7 | 3 | 4 | 2 |
| 2 | 9 | 4 | 5 | 3 | 8 | 6 | 1 | 7 |
| 6 | 5 | 9 | 8 | 1 | 3 | 7 | 2 | 4 |
| 4 | 3 | 7 | 2 | 5 | 9 | 1 | 8 | 6 |
| 8 | 2 | 1 | 7 | 4 | 6 | 9 | 3 | 5 |
| 9 | 6 | 2 | 3 | 8 | 4 | 5 | 7 | 1 |
| 5 | 1 | 8 | 6 | 7 | 2 | 4 | 9 | 3 |
| 7 | 4 | 3 | 1 | 9 | 5 | 2 | 6 | 8 |
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