Sudoku: 1800 Extra Hard Puzzles To Keep Your Brain Active For Hours: Active Brain Series Book (Paperback) (ISBN-13: 9781943828586)

Active Brain Series gigantic book of 1800 extra hard Sudoku puzzles with solutions, perfect for the Sudoku enthusiast. With only one level of difficulty there are no wasted puzzles. Sudoku is a fun way to exercise your brain and there are plenty of puzzles in this book to give it a really good workout The book is 8.5" by 11" and has 4 puzzles per page with room for notes.

Author: T. K. Lee
ISBN-10: 194382858X
ISBN-13: 9781943828586
Publisher: Fat Dog Publishing, LLC
Language: English
Published: 06/21/2016
Pages: 610
Format: Paperback
Weight: 3.07lbs
Size: 11.02h x 8.50w x 1.23d