In chess there are situations that occur during the game that coincide with some theorems of mathematics, such as the famous rule of the square is no more than a practical application of the theorem of Pythagoras or the geometric definition of distance. In game theory, chess is considered a zero-sum game, and some go further by stating that for any position that can occur within the board there is a mathematical function capable of evaluating that position. Apart from the practical game, there is also a close relationship between these two areas. Who will not have read or heard the famous legend of the inventor and King, and the form of payments in grains of wheat proposed by the first, whose geometric progression within the chessboard reaches an impressive amount.

Not in vain has chess attracted the attention of famous mathematicians over time. The mathematician Carl. Gauss was interested in solving the problem of the 8 ladies. So also Leonard Euler, raised and solved the "problem of the movement of the horse" (to walk with the horse by all the squares of the board without going twice in any of them), besides proposing solutions inside the chessboard for the construction Of the magic squares of order n. It may seem incredible to the reader, but building the magic square gives the solution to the horse's journey!

Marcel Rovira