OCTO Spectrum

By Doug Gardner

Book Overview

The OCTO puzzle is a patented math and logic challenge that is part Sudoku, part Kakuro, and part something else entirely OCTO Spectrum is a collection of 60 OCTO puzzles that range from Easy to Very Hard--the perfect book for puzzle fans who want to experience the full spectrum of challenge available from the OCTO puzzle.

• Format: Paperback
• Language: English
• ISBN: 1449995705
• ISBN13: 9781449995706
• Release Date: March 2010
• Publisher: Createspace Independent Publishing Platform
• Length: 90 Pages
• Weight: 0.40 lbs.
• Dimensions: 0.2" x 6.0" x 9.0"