[Event "Bayern Regionalliga Southeast 2000/01"] [Site "masterchessopen.com Germany"] [Round "4"] [White "Hahn Winfried Prof Dr (GER)"] [Black "Hartl Aldo (GER)"] [Result "0-1"] [WhiteElo "2082"] [BlackElo "2146"] [ECO "E41"] [Opening "Nimzo-Indian: 4.e3 c5"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 b6 6.Bd2 cxd4 7.exd4 O-O 8.a3 Be7 9.Ng3 Bb7 10.f3 d5 11.Be3 Nc6 12.cxd5 Nxd5 13.Nxd5 Qxd5 14.Bd3 Rad8 15.Qc2 Nxd4 16.Bxd4 Qxd4 17.Bxh7+ Kh8 18.Be4 Ba6 19.Qc3 Qxc3+ 20.bxc3 Rc8 21.Ne2 Rfd8 22.g4 Bh4+ 23.Ng3 Rxc3 24.a4 f5 25.gxf5 exf5 26.Bxf5 Rxf3 27.Bg4 Rf4 28.Bh5 Be7 {#R} 0-1