Will Shortz Presents Train Your Brain Sudoku: 200 Puzzles to Flex Your Mental Mu

<p>Watch out! These puzzles are going to make you sweat. <p/>Includes: <br>-200 very hard puzzles<br>-Perfect portable size<br>-Edited by Will Shortz</p><br><br><b>Author:</b> Will Shortz<br><b>Publisher:</b> St. Martin's Griffin<br><b>Published:</b> 11/17/2015<br><b>Pages:</b> 320<br><b>Binding Type:</b> Paperback<br><b>Weight:</b> 0.48lbs<br><b>Size:</b> 7.10h x 5.00w x 1.00d<br><b>ISBN:</b> 9781250075482<br><p><b>About the Author</b><br><p><b>Will Shortz</b> has been crossword editor of<i> The New York Times </i>since 1993. He is also the puzzlemaster on NPR's<i> Weekend Edition Sunday </i>and the founder and director of the annual American Crossword Puzzle Tournament.</p></p>