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.

99 puzzles built around the chessboard. Arithmetical and probability problems, chessboard recreations, geometrical puzzles, mathematical amusements and games, more. Solutions.

Mathematical chess is a two-player educational and entertaining game played on ten digit pieces (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) and six operator pieces (addition, subtraction, multiplication, division, power, and root). The chessboard is a grid made up of nine vertical and nine horizontal lines. It is flexible and suitable for all students from middle and high schools to universities. The excessive use of electronic calculators and games has caused a negative impact on the alertness of the minds and the numerical abilities of students at all levels. Dr Ryan said, In numeracy, the young teenage student in 2003 was approximately a quarter of a grade level behind his or her counterpart in 1964. This was reported in the article Grade Worse Than in 1960s (SMH, 11 February 2008). Students love challenges and competitions. Dr Robert C. Ferguson writes, A learning environment organised around games has a positive effect on students attitudes towards learning (Teachers Guide: Research and Benefits of Chess, 11 October 2006). The above statements drive the implementation of this mathematical chess game. Like European chess and Chinese chess, mathematical chess teaches strategy planning, problem-solving, memory improvement, decision-making, concentration, perseverance, observation, analysis, and organisation skill. Mathematical chess itself also promotes numerical abilities, mental alertness, and speedy calculation. The numeracy performance of students in many countries has not improved since 1960, not because of the incompetence of the teachers, but because an educational game interesting and challenging enough to attract students attention did not exist. Mathematical chess can help resolve this drawback. The authors dream is to see mathematical chess become a popular game in all middle and high schools, and to see the love and passion of mathematics flowering in the minds of young people around the world.

How much math can you cover in five minutes? Quite a bit, if you have a good guide. In this collection of one hundred short essays, Ehrhard Behrends offers a tour through contemporary and everyday mathematics. The topics range from pure mathematics to applications of mathematics to observations about the mathematics that surrounds us in daily life. Here, we read about the parable of grains of rice on a chessboard, the mathematics of the lottery, music and mathematics, intriguingparadoxes, the concept of infinity, the Poincare conjecture, quantum computers, and plenty more.

New Math Chess is a two-player educational and recreational game played on ten Digit pieces (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) and six Operator pieces (Addition, Subtraction, Multiplication, Division, Power (Square & Cube), and Root (Square Root & Cube Root)). The book focuses on the explanation and applications of four fundamental concepts governing the feasibility and the success of the book: (i) Attachment of Digits to an Operator, (ii) Partial Values of an Operator, (iii) Partial Equality of two Partial Values of an Operator, (iv) Partial Equality of an Operator with its Partial Values. The book provides 20 chess games with solutions for the readers to practice. New Math Chess is flexible and suitable for all students from middle and high schools to universities.

This unique collection contains extensive and in-depth interviews with mathematicians who have shaped the field of mathematics in the twentieth century. Collected by two mathematicians respected in the community for their skill in communicating mathematical topics to a broader audience, the book is also rich with photographs and includes an introdu