Posted by **arundhati** at Dec. 19, 2015

English | ISBN: 0852640749 | 1962 | 168 pages | PDF | 4 MB

Posted by **thingska** at July 22, 2015

English | Oct 1, 1986 | ISBN: 0486252116 | 112 Pages | PDF | 2.5 MB

Posted by **MoneyRich** at March 15, 2015

English | Sep 1996 | ISBN: 1886846057 | 240 Pages | DJVU | 5 MB

The Puzzle King has 710 chess problems and 34 math puzzles. All are composed by American's greatest puzzle maker, Sam Loyd.An exciting and rewarding way to hone your chess skills and more importantly, have fun. Everyone loves a puzzle, and this page-turner sharpens your chess visions and stretches your imagination.

Posted by **MoneyRich** at March 5, 2015

English | Feb 14, 1979 | ISBN: 0517015447 | 120 Pages | PDF | 3 MB

This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.

Posted by **MoneyRich** at March 5, 2015

English | Dec 26, 2003 | ISBN: 1568812019 | 175 Pages | PDF | 11 MB

Collected over several years by Peter Winkler, of Bell Labs, dozens of elegant, intriguing challenges are presented in Mathematical Puzzles. The answers are easy to explain, but without this book, devilishly hard to find. Creative reasoning is the key to these puzzles. No involved computation or higher mathematics is necessary, but your ability to construct a mathematical proof will be severly tested–even if you are a professional mathematician. For the truly adventurous, there is even a chapter on unsolved puzzles.

Posted by **MoneyRich** at March 5, 2015

English | Dec 1954 | ISBN: 0486201988 | 248 Pages | PDF | 5 MB

Over 180 puzzles involve inference and interpretation, algebra, dissection of plane figures, geometry, properties of numbers, decimation, permutations and probability. Try your hand at The Spider's Cousin, Jack O'Lantern, The Battle of Hastings, The Missing Penny, and scores more. Over 100 pages of detailed solutions.

Posted by **MoneyRich** at March 5, 2015

English | January, 2000 | ISBN: 0442305303 | 253 pages | PDF | 18 MB

Many of the earliest books, particularly those dating back to the 1900's and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.

Posted by **roxul** at Feb. 5, 2015

English | ISBN: 0852640749 | 1962 | 168 pages | PDF | 4 MB

Posted by **ChrisRedfield** at May 19, 2014

Published: 1987-08-15 | ISBN: 0226282538 | PDF | 256 pages | 12 MB

Posted by **nebulae** at May 8, 2014

English | ISBN: 0521735254, 0521756154 | 2008 | 208 pages | PDF | 3 MB