Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
'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, AUSAbout 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
