Hexadoku: Sudoku with a hexadecimal twist (Paperback) (ISBN-13: 9781453644713)

Hexadoku is a challenging variant of sudoku that uses the set of sixteen hexadecimal digits, instead of the traditional nine. It is played on a 16x16 grid, which means there are over three times the number of cells that need to be filled in No knowledge of hexadecimal is needed to play... just a bit of logic and a sharp pencil. (This book contains three hundred hexadoku puzzles grouped into four difficulty levels.)

Author: Keith Elder
ISBN-10: 1453644717
ISBN-13: 9781453644713
Publisher: Createspace Independent Publishing Platform
Language: English
Published: 07/01/2010
Pages: 206
Format: Paperback
Weight: 0.62lbs
Size: 9.02h x 5.98w x 0.44d