Jumbo Sudoku Hard As Heck
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The next instalment in the popular "Jumbo Sudoku" series, "Jumbo Sudoku Hard as Heck" includes over 300 puzzles. The popular numerical brainteaser is a fun way to work the brain, and Sudoku fans of all levels will love this collection. "Jumbo Sudoku Hard as Heck" includes classic Sudoku, as well as samurai, Kukoro, Killer, and 'Son of Sudoku', Futoshiki puzzles. All the puzzles are rated on a scale of hard to fiendish. If readers are looking to finally be challenged by Sudoku, this is the book they have been waiting for. Sudoku puzzles continue to run in top newspapers and magazines across the country. Because every puzzle is completely different, Sudoku appeals to puzzle-fans of all ages.

Paperback: 240 pages

Publisher: Liberty Street (October 27, 2009)

Language: English

ISBN-10: 1603208240

ISBN-13: 978-1603208246

Product Dimensions: 7 x 0.8 x 9 inches

Shipping Weight: 12 ounces

Average Customer Review: 5.0 out of 5 stars  See all reviews (2 customer reviews)

Best Sellers Rank: #2,460,466 in Books (See Top 100 in Books) #55 in Books > Teens > Hobbies & Games > Games & Activities > Puzzles #1291 in Books > Children's Books > Activities, Crafts & Games > Games > Puzzles #1414 in Books > Humor & Entertainment > Puzzles & Games > Sudoku

Age Range: 12 and up

Grade Level: 7 and up

Tricky puzzles ,also tough, and then fiendish. These are what they say they are, and I have been doing these for years.Also I love the variety which keeps one from getting bored; especially when I spend as much time on these while my family is watching the TV . I can still listen and do my puzzles.

Hard as Heck is the most challenging puzzle book published. Other books say their puzzle levels are hard. These puzzles exceed those. My favorite is the Samurai, (a connected five square Sudoku.

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