[Event "It"] [Site "masterchessopen.com - Zurich (Switzerland)"] [Round "0"] [White "Petrosian Tigran V (ARM)"] [Black "Schmid Lothar (GER)"] [Result "1-0"] [WhiteElo "2580"] [BlackElo "2530"] [ECO "A43"] [Opening "Old Benoni: Schmidt"] 1.d4 c5 2.d5 d6 3.c4 g6 4.Nc3 Bg7 5.e4 Nf6 6.Be2 O-O 7.Nf3 e6 8.O-O exd5 9.cxd5 Re8 10.Nd2 Na6 11.f3 Nc7 12.a4 b6 13.Nc4 Ba6 14.Bg5 Bxc4 15.Bxc4 a6 16.Kh1 Rb8 17.Qe2 Qc8 18.Bf4 Bf8 19.Rab1 Nh5 20.Bd2 f5 21.g4 Nf6 22.gxf5 gxf5 23.Rg1+ Kh8 24.Rg3 Re7 25.Rbg1 Rg7 26.e5 dxe5 27.Qxe5 Nce8 28.Rxg7 Bxg7 29.Rxg7 Kxg7 30.Qe7+ Kg6 31.d6 {#r} 1-0