Commemorating the launch of the original Kindergarten Sudoku book five years ago, it is with great pleasure that we publish a new version of the book. The new version comes with 80 new puzzles especially designed for this happy occasion. The sudoku puzzles in this book are designed 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...