Sudoku 3: Hard to Extreme: 200 Puzzles: Hard to Extreme -- Xaq Pitkow, Spiral
Perfect for sharpening concentration and reasoning skills, here are 200 all-new Sudoku puzzles that build in difficulty level from hard to very challenging. A musthave for every on-the-go Sudoku sleuth!
Author: Xaq Pitkow
Publisher: Chronicle Books
Published: 8/3/2011
Pages: 262
Binding Type: Spiral
Weight: 0.35 lbs
Size: 5.7" H x 3.7" L x 0.75" W
ISBN: 9781452101743