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Puzzlewright Guide to Solving Sudoku: Hundreds of Puzzles Plus Techniques to Help You Crack Them All
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ISBN: 1402799454
Author: Longo, Frank
Condition: New
Sudoku designers the world over will weep and gnash their teeth at the revelations in this comprehensive guide to cracking the addictive puzzles--but solvers will find it absolutely invaluable as they seek to improve their skills. Even experts dont know all these tricks: hidden pairs, naked pairs, X-wings, jellyfish, squirmbag, bivalue and bilocation graphs, and chains, plus the exclusive Gordonian logic methods that turn the toughest puzzles into a breeze. There are hundreds of sudoku to practice on. A special addition is a reprint of the very first sudoku ever published!
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Puzzlewright Guide to Solving Sudoku: Hundreds of Puzzles Plus Techniques to Help You Crack Them All