Sudoku has taken America by storm! Now kids can enjoy the puzzle that keeps their parents' minds racing and pencils sharpened. This edition starts with easy 4 x 4 grids to warm up. Then young solvers advance to more challenging 6 x 6 grids and finally tradition 9 x 9 sudoku puzzles. DESIGNED FOR KIDS: Puzzles are specifically designed for kids ages 4-12. Whatever the skill-level, you child will find a compatible level of puzzle inside. EASY AND FUN: Sudoku puzzles are a proven method for improving logic skills and will benefit a child in other areas such as mathematics and science. PLENTY OF PUZZLES & SOLUTIONS: This is truly a kidís sudoku book like no other. With 220 puzzles inside, it is guaranteed to provide hours of fun and learning.