पहेली 853100:
पहेली 853100:
IM A. Sitnikov (2334) - Sergey And. Korshunov (2150)
Lozovatsky Mem A 2023 Chelyabinsk RUS, 2023.01.31 Sitnikov - Korshunov, Chelyabinsk 2023
Lozovatsky Mem A 2023 Chelyabinsk RUS, 2023.01.31 Sitnikov - Korshunov, Chelyabinsk 2023