Sudoku Puzzle Books for Kids in Bulk: : beginner sudoku puzzle books for kids under 5 with 4x4, 6x6, and 9x9 Puzzle Grids (Paperback)

Sudoku for Kids - Play Sudoku Online

Sudoku 4x4 - Hard

4x4 Sudoku Puzzle

Rule and Tutorial of Sudoku – CalcBlocks – Sudoku like Calculation Puzzles.

Sudoku 4x4 worksheet

4x4 Sudoku 1 - Solution

Printable PDF Easy Sudoku for Kids 4x4 400 Children Puzzles - Portugal

Online free sudoku puzzles

I hired a developer to create a sudoku generator for me. It generates 4x4, 6x6 and 9x9 with the difficulties easy, medium, hard, very hard. This is from a 6x6 very hard

Easy 4X4 Sudoku puzzle game for kids - 20 pages printable worksheet