placing shapes on chessboard, 8x8
Source: Bulgaria 1974 P4
June 20, 2021
combinatorics
Problem Statement
Find the maximal count of shapes that can be placed over a chessboard with size in such a way that no three shapes are not on two squares, lying next to each other by diagonal parallel ( is the lowest-bottom left corner of the chessboard, is the highest-upper right corner of the chessboard).V. Chukanov