Problem 63:
Problem 63:
R. Dubinski (2295) - O. Svirin (2415)
Russian Cup 8th Leg Smolensk RUS (9), 1997.06.22 Dubinski - Svirin, Smolensk 1997
Russian Cup 8th Leg Smolensk RUS (9), 1997.06.22 Dubinski - Svirin, Smolensk 1997