[Event "corr."] [Site "masterchessopen.com DDR"] [Round "0"] [White "Koppe Fred"] [Black "Hentzgen K"] [Result "0-1"] [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.Ne2 Nc6 9.Be3 O-O 10.O-O cxd4 11.cxd4 Bg4 12.f3 Na5 13.Bd3 Be6 14.Rc1 Bxa2 15.Qa4 Be6 16.d5 Bd7 17.Qb4 b6 18.Ba6 f5 19.Bg5 Bf6 20.Bxf6 exf6 21.Nd4 fxe4 22.fxe4 Rb8 23.Rfd1 b5 24.Ra1 Nc4 25.Kh1 Qb6 26.Nb3 Rf7 27.Qc5 Be8 28.Qxb6 axb6 29.Nd4 Nd6 30.Rab1 Nxe4 31.Re1 Nc3 {#R} 0-1