Essential Collection

By Box Nine
September 2006
Box Nine Publishing
Distrubuted by Trans-Atlantic Publications Inc.
ISBN: 095536941X
271 pages, 5¾ x 8¼"
$19.95 Paper Original

Sudoku puzzles have becoming increasingly popular in the past 10 years. Box Nine has compiled this new book of puzzles, offering increased challenges to experienced puzzle-solvers as well as puzzles to entice people new to the game.

Sudoku: The Essential Challenge combines original sudoku challenges with Killer, Double Doku, Triple Doku, and 3D Doku. Hints are given for beginners. Each Box Nine puzzle has only one solution. Can you figure it out?

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