Expert Sudoku -- Nikoli Publishing, Paperback
Expert Sudoku is an all-new collection of handcrafted puzzles for the expert puzzle-solver. This is the book that challenges skilled solvers and Sudoku-lovers at the top level--every one of the 320 puzzles is rated "difficult." Good luck!
Author: Nikoli Publishing
Publisher: Workman Publishing
Published: 11/1/2009
Pages: 401
Binding Type: Paperback
Weight: 0.56 lbs
Size: 6.12" H x 4.18" L x 0.98" W
ISBN: 9780761158356