Fun Times with Math-Logic Puzzles: Sudoku, Kakuro, & Gokigen

101 puzzles for hours of entertainment for young and old alike.These puzzles will strengthen arithmetic skills, exercise your brain, and keep your mind sharp.There are 41 Sudoku, 35 Kakuro, & 25 Gokigen.The Sudoku puzzles are divided into 4 levels of difficulty: Easy, Medium, Hard and Extra Hard.