Before you leave...
Take 20% off your first order
20% off
Enter the code below at checkout to get 20% off your first order
Across the Board is the definitive work on chessboard problems. It is not simply about chess but the chessboard itself--that simple grid of squares so common to games around the world. And, more importantly, the fascinating mathematics behind it. From the Knight's Tour Problem and Queens Domination to their many variations, John Watkins surveys all the well-known problems in this surprisingly fertile area of recreational mathematics. Can a knight follow a path that covers every square once, ending on the starting square? How many queens are needed so that every square is targeted or occupied by one of the queens?
Each main topic is treated in depth from its historical conception through to its status today. Many beautiful solutions have emerged for basic chessboard problems since mathematicians first began working on them in earnest over three centuries ago, but such problems, including those involving polyominoes, have now been extended to three-dimensional chessboards and even chessboards on unusual surfaces such as toruses (the equivalent of playing chess on a doughnut) and cylinders. Using the highly visual language of graph theory, Watkins gently guides the reader to the forefront of current research in mathematics. By solving some of the many exercises sprinkled throughout, the reader can share fully in the excitement of discovery. Showing that chess puzzles are the starting point for important mathematical ideas that have resonated for centuries, Across the Board will captivate students and instructors, mathematicians, chess enthusiasts, and puzzle devotees.About the Author
John J. Watkins is professor emeritus of mathematics at Colorado College. An award-winning teacher, he is the author of Topics in Commutative Ring Theory (Princeton) and coauthor of Graphs: An Introductory Approach.
Thanks for subscribing!
This email has been registered!
Take 20% off your first order
Enter the code below at checkout to get 20% off your first order
Like it was written by George Santos
Received an Advanced Reader Copy from a friend. I am an avid true crime reader and upon completion I question if the author is credible. The timeline does not add up for his age and the times of his alleged involvement in organized crime. Some of the things in the book he is alleged to have said and done I remember almost word for word from movies I had previously watched. He literally stole a scene from the movie the accountant with Ben Affleck and said that he did it. I did a little research after completing the book and learned that this author was also claiming in 2010 that he was a long time member of the Bloods Gang. That coupled with the above leads me to believe that it is nothing more than fantasy. Do not waste your time or money
Like it was written by George Santos
Received an Advanced Reader Copy from a friend. I am an avid true crime reader and upon completion I question if the author is credible. The timeline does not add up for his age and the times of his alleged involvement in organized crime. Some of the things in the book he is alleged to have said and done I remember almost word for word from movies I had previously watched. He literally stole a scene from the movie the accountant with Ben Affleck and said that he did it. I did a little research after completing the book and learned that this author was also claiming in 2010 that he was a long time member of the Bloods Gang. That coupled with the above leads me to believe that it is nothing more than fantasy. Do not waste your time or money
What a difficult story to tell. I appreciate the honesty and vulnerability. Definitely made me think.
I had hopes for this book but was not expecting what I would read within the pages. If your kink is deplorable grammar, incoherent sentences, and inconsistent messages, then this book is for you. At first, I thought the book I received was not the book I ordered. But as I dived in, it was very confusing. I would not recommend this book to anyone
There are not many reviews on the internet for this book. In researching the many stores selling the book, it was self-published which makes a lot of sense. The online description is written perfectly, so reading the actual book was very difficult. Pages two and three are written clearly as well as the table of contents. Pages 155 and 156 are also written logically.
It appears this book was written, then sent through a program like “Grammarly.” Once completed it seems it was published without being re-read or edited. The first clue was the title narrative that used “Has” instead of “As.” The table of contents is one page off from what it shows on pages four though seven. Many of the “q’s” are written as “[]”
Below are some examples of what was within the pages of this book written verbatim:
“Chains & Discipline/ Domination & entry/ Sadism & Masochism (BDSM) is a wide classification of bed room play.” Page 9
“When bringing up the topic of chains, you are actually asking a person to offer you their depend on, their flexibility, and also possibly their suggestion of security in exchange for sensual/sexual enjoyment, power-play, and also feasible re-evaluation of your very own connection.” Page 39
“Techni[]ue can take a selection of kinds and also be as easy or facility as you pick to (new paragraph) bargain for your details scenario” Page 52
“BDSM stands for chains as well as entry, technique and also supremacy as well as sadism and also masochism.” Page 125
“SHELF means Risk Aware Consensual Kink.” Page 130
“Approval is whatever.” Page 152
“your twist isn’t my twist, yet your twist is OKAY.” Page 153
“You can be a top, base, or button” Page 153
Good service, good book. Just what I was looking for! Thank you!