OCTO Storm: Hard and Very Hard OCTO Puzzles

By Doug Gardner

OCTO Storm is a book of Hard and Very Hard OCTO Puzzles. OCTO is a patented math and logic puzzle that combines the positional logic of Sudoku with math to create a fun and challenging new puzzle experience.

• Format: Paperback
• Language: English
• ISBN: 1505244765
• ISBN13: 9781505244762
• Release Date: December 2014
• Publisher: CreateSpace Independent Publishing Platform
• Length: 120 Pages
• Weight: 0.66 lbs.
• Dimensions: 8.5" x 0.3" x 8.5"