問題 258206:
問題 258206:
GM B. Grachev (2639) - IM Maksim Chigaev (2542)
69th ch-RUS HL 2016 Kolomna RUS, 2016.06.30 Grachev - Chigaev, Kolomna 2016
69th ch-RUS HL 2016 Kolomna RUS, 2016.06.30 Grachev - Chigaev, Kolomna 2016