Kindergarten Sudoku This is a book containing Sudoku puzzles for children in kindergarten - ages 4 - 8 years and up. All the puzzles in the book are 4 x 4 Sudoku puzzles designed specially for these children in mind. Sudoku rules are easy - each number 1, 2, 3, and 4 must appear only once in each row, column, or block. There are 80 puzzles in the book categorized as follows: 48 Classic Sudoku, 8 Alphabet Sudoku, 8 Sh... Full description