Across the Board is not simply about chess but the chessboard itself and the fascinating mathematics behind it. John Watkins surveys all the well-known problems in this surprisingly fertile area of recreational mathematics. Many beautiful solutions have emerged for basic chessboard problems since mathematicians first began working on them in earnest over three centuries ago. But now such problems have 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. Across the Board will captivate students and instructors, mathematicians, chess enthusiasts, and puzzle devotees.