[Event "?"] [Site "masterchessopen.com Dortmund (Germany)"] [Round "4"] [White "Gerndorf Michael (GER)"] [Black "Sperlich Stefan"] [Result "1-0"] [WhiteElo "2141"] [ECO "D85"] [Opening "Gruenfeld: Exchange, 5.e4"] 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Be3 O-O 9.Ne2 Nc6 10.O-O Qc7 11.Qc1 Bd7 12.Rd1 Rac8 13.Bh6 Na5 14.Bd3 Ba4 15.Bxg7 Kxg7 16.Re1 c4 17.Bc2 Bxc2 18.Qxc2 Nc6 19.Ng3 b5 20.Rab1 Rb8 21.Nf1 e6 22.Ne3 Rfc8 23.Rec1 Qa5 24.Qd2 Rd8 25.d5 Ne5 26.Qd4 f6 27.f4 Nd3 28.Ng4 Qb6 29.Qxb6 Rxb6 30.Rf1 exd5 31.exd5 Rxd5 32.Ne3 Rc5 33.Nc2 Ra6 34.Nd4 Rb6 35.a4 a6 36.f5 Kf7 37.axb5 axb5 38.fxg6+ hxg6 39.Ra1 Rb7 40.Rfb1 b4 41.cxb4 Rxb4 42.Ra7+ Kg8 43.Ra8+ Kh7 44.Rba1 Rb7 45.h3 c3 46.R8a7 Rxa7 47.Rxa7+ Kh6 48.Nc2 Kg5 49.Ra4 Kf5 50.g3 Ke5 51.Kf1 Rb5 52.Rc4 Rc5 53.Ra4 Rb5 54.Rc4 Rb3 55.Ne3 Nb2 56.Rc6 Na4 57.Ke2 Rb6 58.Nc4+ Kd5 59.Nxb6+ Kxc6 60.Nxa4 c2 61.Kd2 c1=Q+ 62.Kxc1 Kd5 63.Kd2 Ke4 64.Ke2 f5 65.Nc5+ Kd5 66.Nd3 Ke4 67.h4 f4 68.Nxf4 {#r} 1-0