Sudoku 200 Puzzles for Smart Kids: 4LEVELS EASY MODERATE HARD SUPER HARD, tips and secrets to solve sudoku Over 200 Brain Teasing Puzzles for smart kids
This book contains 200 sudoku puzzles, it has 4 varying difficulty levels easy, moderate, hard and super hard >this puzzle is good for your child's mind and cognitive development >this puzzle book designed especially to enhance kid performance gradually.
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