Problem 172857: Hitam jalan Bertahan
Stepan Osinovsky (2241) - Paulo Cesar Costa (1974)
Titled Tue 4th Aug 10am chess.com INT (10), 2020.08.04
Titled Tue 4th Aug 10am chess.com INT (10), 2020.08.04
Gerakkan buah untuk memecahkan problem.