This book is intended for Yahoo backgammon players to achieve the highest online rating for this popular free online game. This book uncovers the secrets behind how the rating system works, how to combat and defeat various cheat tactics, and how to maximize rating increases, enabling you to reach the Yahoo maximum rating (3500). There is no reward or prize upon reaching this level. Yahoo rating points can not be redeemed for monetary value; they are, in a sense, worth nothing. Some of the information in this book can be found online by asking veteran players, assuming they're willing to give up some of their secrets. The first half of the book is intended to cover the basic rules of the game. A chapter has been specifically devoted for an important element of the game that most people are not technically proficient with: the doubling cube. The rest of the book covers cheat tactics and how to combat and defeat them, reference charts of rate optimization, statistical analyses, dice programs, and more.