Play Sudoku Puzzles to Improve Your IQ

By Kalman Toth

SOMETHING MAGIC ABOUT SQUARE PUZZLES! THEY ARE SIMPLY IRRESISTIBLE. SCIENTIFICALLY PROVEN THAT REGULAR SUDOKU PUZZLE SOLVING IMPROVES IQ AND KEEPS BRAIN IN TOP SHAPE. 500 9x9 SUDOKU PUZZLES WITH... This description may be from another edition of this product.

• Format: Paperback
• Language: English
• ISBN: 1492748692
• ISBN13: 9781492748694
• Release Date: September 2013
• Publisher: Createspace Independent Publishing Platform
• Length: 342 Pages
• Weight: 1.35 lbs.
• Dimensions: 0.7" x 7.4" x 9.7"