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Spiral Bound

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Sudoku super-master Frank Longo and mental_floss , the magazine for trivia lovers, bring fans a collection of superb puzzles sure to stimulate the brain. Longo's puzzles are always top-notch, and because these increase in difficulty as the book goes along,…

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For diehards only! These incredibly difficult puzzles are handcrafted for the sudoku warrior who dares to go where other solvers fear to tread. So, if you're armed with the highest-level strategies, get ready for the most satisfying fight your life.   It's…

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This is the sudoku collection with the grace and flair that all the others try to imitate! Puzzle aficionados will love having these challenges with them at the country club, at a fine restaurant, or just on hand during a first-class flight to Paris. With its…

Spiral Bound

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Lounging by the pool is a great way to spend some leisure time, and great sudoku puzzles make it even better. Whether they're on a beach towel or lounge chair, solvers will delight in this latest collection of satisfying sudoku stumpers, created by top puzzle…

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Sudoku designers the world over will weep and gnash their teeth at the revelations in this comprehensive guide to cracking the addictive puzzles--but solvers will find it absolutely invaluable as they seek to improve their skills. Even experts don't know all…

10 X 10 Sudoku

by Frank Longo

|August 4, 2015

Paperback

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Sudoku fans always keep an eagle eye out for fresh formats featuring their favorite puzzles. Here’s one sure to draw them in: 210 sudoku that add a little spice to the mix by changing the standard 9 x 9 puzzles to 10 x 10. That means solvers get 100 squares…

Spiral Bound

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Top solvers can try their hand at the One-Sided Gordonian Rectangle; Extended Gordonian Rectangle; Gordonian Polygon; and Alternating Digits. (But they can take comfort in knowing that no more than one will occur in any single puzzle.)

Paperback

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$16.95

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Only diehards need apply! These incredibly difficult sudoku are made to challenge even the most expert solver…and strain their brains to bursting. Each puzzle requires upper-level strategies that have been honed to perfection from regular practice. Designed…

Spiral Bound

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The difficulty level soars, as even more tricks get added to the mix: X-Wing; Swordfish; XY-Wing; XYZ-Wing; and the Gordonian Rectangle.

Spiral Bound

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The vast majority of sudoku puzzles that are labeled "hard," "expert," "challenger," are not really all that difficult. And in a surprising number of cases, they are downright easy. In the "Mensa Absolutely Nasty Sudoku" books, you will find puzzles truly worthy…

Paperback

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Keep your mind fit with brain aerobics! If you like great mental exercises, try brain aerobics. All you have to do is open this book, lift a pencil, and flex your mind while solving this assortment of invigorating puzzles.   In Brain Aerobics Wordoku 2 ,…

Hardcover

$11.95

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Endless fun for devoted solvers! At 21 feet, 9 ¾ inches long, and with 8,929 empty squares to fill, this huge puzzle adds big excitement to the popular game—and is the perfect challenge for fans who find regular sudoku too easy. It’s composed…