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World's Most Difficult Sudoku Only Play if You're an Expert with 200+ Very Hard Puzzles

by World's Most Difficult Sudoku Only Play if You're an Expert with 200+ Very Hard Puzzles

$16.28

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Description

Why should you spend time completing Sudoku? Because of the benefits, of course! When you play, you stimulate your mind to think both logically and creatively. Eventually, you don't just improve your number skills but your entire thinking process too. When you're older, playing Sudoku helps keep the brain sharp and active. Begin the Sudoku habit today.

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Product Details

  • Sep 20, 2017 Pub Date:
  • 9781541941656 ISBN-13:
  • 1541941659 ISBN-10:
  • English Language