Cranium-Crushing Friday Sudoku

By Frank Longo

Book Overview

Do you dare? Wrap your brain around the XY-Wing, XYZ-Wing, Alternating Digits, Extended Gordonian Rectangle, Multi-Digit One-Sided Gordonian Rectangle, Gordonian Polygon, One-Sided Gordonian Polygon,... This description may be from another edition of this product.

• Format: Spiral-bound
• Language: English
• ISBN: 1402744285
• ISBN13: 9781402744280
• Release Date: January 2008
• Publisher: Sterling
• Length: 96 Pages
• Weight: 0.70 lbs.
• Dimensions: 0.3" x 8.5" x 9.9"

Customer Reviews

The most difficult collection I've found

I am good enough at sudoku (techniques up to and including x-wing) that it is difficult to find puzzles that are challenging enough to be interesting. The puzzles in this book are extremely difficult, and I have been able to solve only 3 our of the 100 I've tried so far without using some new techniques that I had never even heard of before.

good for your brain

really challenging puzzles good if you are advanced we loved them are addicting