When the going gets tough, the tough solve sudoku!
Features:
* 200 easy to easy to hard Sudoku puzzles
* Portable and perfect for solving on the go
* Edited by the #1 man in American crosswords, Will Shortz
Will Shortz Presents Keep Calm and Sudoku On: 200 Easy to Hard Puzzles
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Book Details
Author(s)The New York Times
PublisherSt. Martin's Griffin
ISBN / ASIN1250009197
ISBN-139781250009197
AvailabilityUsually ships in 24 hours
Sales Rank804,136
MarketplaceUnited States 🇺🇸