Earth Day - Hard Sudoku (Old Television)

This Hard Sudoku puzzle features a 9x9 Sudoku puzzle to solve and a picture of an old television 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.

Earth Day Sudoku Key

638719425
145283967
729465381
871396254
594827613
362154798
456971832
987532146
213648579
sudoku puzzle with an old television

 Check this box to display the answer key

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