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Here is a puzzle book that will have even the masters begging for mercy--and for more. Almost Impossible Number Puzzles has more than 275 puzzles offering a variety of challenges including Sudoku and Kakuro. It's a perfect take-along for brave men and women. CAUTION: Almost Impossible Number Puzzles may strain the brain and induce pleasure.
Pocket Posh® Almost Impossible Number Puzzles offers a variety of challenges, including sudoku, kakuro, and a fiendish assortment of tricky number puzzles. It’s a perfect take-along for both men and women–and the brave. Pocket Posh Almost Impossible Number Puzzles will do a number on the human brain. Side effects include strain, night sweats, immediate pleasure, even satisfaction. Hard-core gamers and puzzlers will find the ultimate challenge in this collection of head-scratching, mind-bending true logic puzzles. Pocket Posh Almost Impossible Number Puzzles features a chicly styled cover, making it a smart, sophisticated accessory that goes with anything. Packaged in a handy 4 x 6 size, the book fits nicely into a purse or tote. With more than 3 million copies in print, the Pocket Posh puzzle series is a great way to exercise your mind--and look great while doing it! A free trial subscription to The Puzzle Society adds extra value.
Here is a puzzle book that will have even the masters begging for mercy--and for more. Almost Impossible Word Puzzles has more than 180 puzzles that will have puzzlers doing a one-eighty and rethinking the way they tackle puzzles. Challenges include anagrams, cryptograms, Wordoku, soundalikes, coded crosswords, and much more. CAUTION: Almost Impossible Number Puzzles may strain the brain and induce pleasure.
Do all problems have solutions? Is complexity synonymous with difficulty? This original collection of mathematical puzzles and paradoxes proves that things aren't always what they seem! Readers will discover that nothing is as easy or as difficult as it looks and that puzzles can have one, several, or no solutions. The fun-filled puzzles begin with The Tricky Hole, a challenge that involves pushing a large coin through a small hole in a sheet of paper without ripping or making any cuts in the paper. Advance to the Elastic Playing Card, in which it's possible to cut a hole into a playing card big enough for someone to climb through. Other incredible puzzles include Elephants and Castles, Trianglized Kangaroo, Honest Dice and Logic Dice, Mind-reading Powers, and dozens more. Complete solutions explain the mathematical realities behind the fantastic-sounding challenges.
The noted expert selects 70 of his favorite "short" puzzles, including such mind-bogglers as The Returning Explorer, The Mutilated Chessboard, Scrambled Box Tops, and dozens more involving logic and basic math. Solutions included.
A brand-new collection of Killer Sudoku puzzles, the Sudoku variation that has sold over 45,000 copies in the Pocket Posh® series. Our second collection of Pocket Posh Killer Sudoku presents 100 puzzles in four difficulty levels. In addition to the rules of traditional Sudoku, the sum of the digits in each inner cage must equal the number in the top left corner of the cage. This portable package is part of a best-selling series featuring highly stylized, embellished covers and boasting 5 million copies in print. A free trial subscription to The Puzzle Society™ adds extra value.
Our 6th collection of Pocket Posh® crossword puzzles featuring 75 puzzles of medium-level difficulty packaged in our signature, trademarked style. The number 6 symbolizes beauty; in math, it's the first perfect number. Pocket Posh® Crosswords 6 is both beautiful and perfect for hours of puzzling fun. This portable package is part of a best-selling series featuring highly stylized, embellished covers and boasting 5 million copies in print. A free trial subscription to The Puzzle Society™ adds extra value.
Fifth in the series, this Word Roundup collection presents 100 puzzles designed with the flair of our best-selling Pocket Posh style. More than 330,000 Pocket Posh Word Roundup books have sold across the series! We present our 5th Pocket Posh Word Roundup collection for anytime fun and all-around gift giving. Word Roundup™ puzzles are even more popular than word search. Unlike traditional word searches, Word Roundup™ gives clues to the words hidden within the puzzles. The words themselves are for solvers to figure out. This attractive package is sized for portability and is part of our best-selling series of puzzle books that feature highly stylized, embellished covers and boast 5 million copies in print. A free trial subscription to The Puzzle Society™ adds extra value.
This book contains a multitude of challenging problems and solutions that are not commonly found in classical textbooks. One goal of the book is to present these fascinating mathematical problems in a new and engaging way and illustrate the connections between integrals, sums, and series, many of which involve zeta functions, harmonic series, polylogarithms, and various other special functions and constants. Throughout the book, the reader will find both classical and new problems, with numerous original problems and solutions coming from the personal research of the author. Where classical problems are concerned, such as those given in Olympiads or proposed by famous mathematicians like Ramanujan, the author has come up with new, surprising or unconventional ways of obtaining the desired results. The book begins with a lively foreword by renowned author Paul Nahin and is accessible to those with a good knowledge of calculus from undergraduate students to researchers, and will appeal to all mathematical puzzlers who love a good integral or series.