PhD in Sudoku (Sudoku U)

by Longo, Frank

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Paperback $4.49
Condition Bargain Brand-new publisher overstock that may have a remainder mark and minor wear from handling. Bargain
$4.49

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About

We’ll school you in sudoku! Find your grade, improve your play - and graduate to the next level.

Sudoku professor Frank Longo has crafted five books with 300 sudoku each, which will take students from solving basics to super-hard, super-expert strategies. Try them and see how far you can go!

Warning: these excruciatingly hard puzzles are for sudoku experts only! In order to solve these brain-busting conundrums, you must master not only one upper-level technique, but an array of skills. Every one is a challenge.
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