Puzzle Book | KAPPA Sudoku PLUS Brain Workout | Digest Size 2-Titles

Kappa Sudoku Collection Puzzle Book 2 Titles, Brain Workout Number Match, Easy to Hard for Training and Learning with Game. Kappa Sudoku Digest/Pocket: 8 x 5 inches | 2 Volumes | Titles (May Vary from image) The offer consists of only two titles, regardless of how many you order from this list: a 2-pack, a 12-pack, and a 24-pack.  Sudoku puzzles are fun and engaging, stimulating your brain! This puzzle book is ideal for people on the go and will provide hours of entertainment. Strain your brain, including long-term memory, working memory, executive functioning, attention to detail, multitasking, and processing speed.