[Event "It \"] [Site "masterchessopen.com Leningrad (Russia)"] [Round "4"] [White "Borisenko Georgy K (UZB)"] [Black "Bertholdt Dieter"] [Result "1-0"] [WhiteElo "2354"] [ECO "E21"] [Opening "Nimzo-Indian: Three Knights"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 O-O 5.Bg5 h6 6.Bh4 c5 7.e3 cxd4 8.Nxd4 Nc6 9.Bd3 d5 10.cxd5 exd5 11.O-O Bxc3 12.bxc3 Ne5 13.Rb1 b6 14.Bb5 Bd7 15.f4 Neg4 16.Re1 Re8 17.Qf3 g5 18.fxg5 Ne4 19.g6 f6 20.h3 Nd2 21.Qxd5+ {#r} 1-0