USA TODAY® Sit & Solve® Hard Sudoku (Sit & Solve® Series)

By Frank Longo

Some like it hard--and this time, Frank Longo's made his intricate, brilliantly constructed puzzles for those who enjoy a brain-busting challenge. These are some of the finest puzzles you'll ever find.

• Format: Paperback
• Language: English
• ISBN: 140277527X
• ISBN13: 9781402775277
• Release Date: June 2010
• Publisher: Puzzlewright
• Length: 96 Pages
• Weight: 0.05 lbs.
• Dimensions: 4.8" x 0.5" x 6.0"