لغز 23069:
لغز 23069:
IM Saveliy Golubov (2501) - IM M. Vavulin (2575)
71st Moscow Blitz Moscow RUS, 2017.09.03 Golubov - Vavulin, Moscow 2017
71st Moscow Blitz Moscow RUS, 2017.09.03 Golubov - Vavulin, Moscow 2017
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