So you've already mastered the game that CNN calls "maddeningly addictive." But are you ready to go faster and play without an eraser? Let "New York Times "crossword editor and bestselling author Will Shortz put you to the test with these 150 sudoku puzzles. Smarten up now "
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.