ASU 455 All Soviet Union MO 1987 game with naturals <=p
Source:
August 7, 2019
gamegame strategycombinatorics
Problem Statement
Two players are writting in turn natural numbers not exceeding . The rules forbid to write the divisors of the numbers already having been written. Those who cannot make his move looses. a) Who, and how, can win if ? b) Who wins if ?