ISBN-13: 9781936707461 / Angielski / Miękka / 2017 / 80 str.
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.