Game: putting numbers in a grid
Source: Ukraine MO 2021 8.7
May 2, 2021
combinatoricsgame
Problem Statement
Andriy and Bogdan take turns putting integers from to inclusive in the cells of an board in such a way that no row or column contains two equal numbers. Andriy begins, and the player who cannot make a move loses. Depending on , which player has a winning strategy?
Proposed by Fedir Yudin