Things You'll Need
Instructions
Download and print out a Sudoku game grid with possibilities or blank. You can do this at sites like Sudoku Essentials. These grids are blank templates that will allow you to write in numbers to create a new puzzle.
Create your solution first by filling in the grid with numbers one through nine. Make sure there are no repeats in any row, column or grid. If you get a repeat, you will have to erase several or all of your numbers and start again.
Begin removing mirrored pairs of numbers. These are the numbers in blocks that overlap when the grid is folded in half. The fewer pairs you take out the easier the puzzle is to solve. Too many blanks and a child will not be able to play.
Test the puzzle each time you remove a mirrored pair. If at any time the puzzle can e solved more than one way, reinsert the numbered pairs until it has only one solution. Extremely difficult puzzles remove pairs until a single solution puzzle is no longer possible. Keep yours simpler with fewer removed pairs to ensure that kids can complete it.