Go way beyond difficult, with the hardest, most brain-busting sudoku you've ever seen!
eBay
Title: Beyond Kindergarten Sudoku: 6X6 Sudoku Puzzles For Kids Item Condition: used item in a good condition. Author: Peter I. Kattan, Nicola I. Kattan ISBN 10: 143821278X. Will be clean, not soiled or stained.
eBay
Book
eBay
ISBN-13: 9781454933571, 978-1454933571. Go way beyond difficult, with the hardest, most brain-busting sudoku you've ever seen! Are you up for the challenge?. Way Beyond Black Belt Sudoku (R) Author(s): Frank Longo.
eBay
Go way beyond difficult, with the hardest, most brain-busting sudoku you’ve ever seen! Calling all sudoku-solving diehards: with every puzzle requiring upper-level strategies, this collection packs even more of a punch than our previous Beyond Black Belt Sudoku. Get ready, because you’ll encounter common advanced techniques with curious-sounding names like XYZ-Wing, Finned X-Wing, Sashimi X-Wing, Swordfish, Jellyfish, Gordonian Rectangle, and Gordonian Polygon. And you might find some tricky new things here, too, from Grouped X-Cycle and Simple Grid Coloring to 3D Medusa and Bi-Value Universal Grave. The sudoku generally become increasingly difficult as the book goes along, from “pretty darn hard” to “excruciating.
eBay
eBay
Frank Longo. Way Beyond Black Belt Sudoku. Martial Arts Sudoku - Super Duper Tough.
eBay
Beyond Black Belt Sudoku by Longo, Frank May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less
eBay