Way Beyond Black Belt Sudoku® (Martial Arts Puzzles Series)

With every puzzle requiring upper-level strategies, this collection packs even more of a punch than Beyond Black Belt Sudoku. You'll encounter common advanced techniques with curious-sounding names like Sashimi X-Wing, Swordfish, and Gordonian Polygon, as well as some tricky new things, including Grouped X-Cycle and 3D Medusa. The puzzles grow increasingly difficult as the book goes along, from "pretty darn hard" to "excruciating."

• • Author: Frank Longo
• • Publisher: Puzzlewright
• • Publication Date: Oct 01, 2019
• • Number of Pages: 192 pages
• • Language: English
• • Binding: Paperback
• • ISBN-10: 1454933577
• • ISBN-13: 9781454933571