لغز 57180:
لغز 57180:
Gor Airapetian (2442) - Oleg Bykov (2401)
72nd ch-RUS HL 2019 Yaroslavl RUS, 2019.06.30 Airapetian - Bykov, Yaroslavl 2019
72nd ch-RUS HL 2019 Yaroslavl RUS, 2019.06.30 Airapetian - Bykov, Yaroslavl 2019
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