MathDB
partition in rectangles a 8x8 chessboard

Source: Portugal OPM 2022 p3

May 15, 2024
geometryrectanglecombinatoricscombinatorial geometry

Problem Statement

The Proenc has a new 8×88\times 8 chess board and requires composing it into rectangles that do not overlap, so that: (i) each rectangle has as many white squares as black ones; (ii) there are no two rectangles with the same number of squares. Determines the maximum value of nn for which such a decomposition is possible. For this value of nn, determine all possible sets A1,...,An{A_1,... ,A_n}, where AiA_i is the number of rectangle ii in squares, for which a decomposition of the board under the conditions intended actions is possible.