Sudoku-Stak: The 3-Dimensional Logic Puzzle -- Book 1 (Paperback) (ISBN-13: 9781618971784)

"I truly LOVE your puzzles. Thank you for a new and challenging twist on the sudoku puzzle. These are, by far, my favorite variation." - Jane, Bethesda, USA "This very interesting advancement to the puzzle has rekindled my family's interest in sudoku. It's just amazing that so many numbers can go together in only one way." - Peter, Banstead, UK "After finishing my first sudoku puzzle, I was hooked. Having them in 3-D form only makes me want to do them 3 times more Thank you for cubing the complexity of the challenge." - Rory, Buderim, AUS About the Author: Richard John is the mastermind behind this uniquely challenging form of Sudoku that expands the 2-dimensional puzzle into a mind-bending cube of seemingly unsolvable numbers. His engineering background and perseverance helped create what you hold in your hands today. Richard runs a family business and teaches yoga. He lives with his wife, Claire, in Harare, Zimbabwe. Publisher's website: http: //sbpra.com/RichardJohn

Author: Richard John
ISBN-10: 1618971786
ISBN-13: 9781618971784
Publisher: Strategic Book Publishing
Language: English
Published: 01/30/2012
Pages: 92
Format: Paperback
Weight: 0.52lbs
Size: 11.00h x 8.50w x 0.19d