CHRISTMAS SUDOKU PUZZLES BOOK FOR Toddlers If you're looking for a Sudoku book for beginners to advanced, here's the perfect first Sudoku puzzle book...
Sudoku Puzzles Activity Book For toddlers: 220 Sudoku Puzzles Easy-Medium-Hard-Difficult With Solution
90 EASY + 70 MEDIUM + 40 HARD + 20 DIFFICULT
There are 4 puzzles per page and solutions are at the end of the book.