[Event "It (open)"] [Site "masterchessopen.com Pfalz (Germany)"] [Round "0"] [White "Wiegand Heinrich"] [Black "Auer Hans"] [Result "1-0"] [BlackElo "2020"] [ECO "D91"] [Opening "Gruenfeld: 5.Bg5 c6"] 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 c6 6.e3 O-O 7.Qb3 dxc4 8.Bxc4 Nbd7 9.O-O e6 10.Rac1 c5 11.Bf4 Qa5 12.Bd3 cxd4 13.exd4 Nd5 14.h3 N7f6 15.Nxd5 Qxd5 16.Qxd5 Nxd5 17.Be5 Bxe5 18.dxe5 Bd7 19.Nd4 Rac8 20.Nxe6 Rxc1 21.Rxc1 fxe6 22.Be4 Nf6 {#r} 1-0