the Calcudoku Series - September: 100 puzzles of great variety every month

By Patrick Min

This is the ninth (September) issue of the new "Calcudoku Series" puzzle books. Each month there will be a new puzzle book with 100 Calcudoku puzzles of the greatest variety (from easy to difficult, with twins, "no-op" puzzles, single operator, patterned, up to 15x15 in size!), at the lowest possible price.

• Format: Paperback
• Language: English
• ISBN: 1537347136
• ISBN13: 9781537347134
• Release Date: September 2016
• Publisher: CreateSpace Independent Publishing Platform
• Length: 106 Pages
• Weight: 0.54 lbs.
• Dimensions: 9.6" x 0.2" x 6.7"