coins and 11 empty boxes - All-Russian MO 2002 Regional (R4) 8.3
Source:
September 17, 2024
combinatorics
Problem Statement
There are empty boxes. In one move you can put one coin in some 10 of them. Two people play and take turns. Wins the one after which for the first time there will be coins in one of the boxes. Who wins when played correctly?