Skew knights
Source: Kyiv City MO 2021 Round 1, Problem 11.2
December 21, 2023
combinatoricsChessboard
Problem Statement
Chess piece called skew knight, if placed on the black square, attacks all the gray squares. https://i.ibb.co/HdTDNjN/Kyiv-MO-2021-Round-1-11-2.pngWhat is the largest number of such knights that can be placed on the chessboard without them attacking each other?Proposed by Arsenii Nikolaiev