[Event "It (open) \"] [Site "Buenos Aires (Argentina)"] [Round "1"] [White "Roeder Mathias (GER)"] [Black "De Martin Juan Alfredo"] [Result "1-0"] [WhiteElo "2445"] [ECO "A05"] [Opening "Reti: KIA"] 1.Nf3 Nf6 2.g3 g6 3.b3 Bg7 4.Bb2 O-O 5.Bg2 c5 6.c4 Nc6 7.O-O d6 8.Nc3 e5 9.e3 Bg4 10.h3 Bxf3 11.Bxf3 Qd7 12.Bg2 a6 13.d3 Rab8 14.Qd2 b5 15.Rac1 b4 16.Ne2 Nh5 17.d4 exd4 18.exd4 Qc7 19.Rcd1 Rbd8 20.g4 Nf6 21.d5 Nb8 22.Ng3 Nbd7 23.f4 Ne8 24.Ne4 h6 25.Bxg7 Kxg7 26.f5 Nef6 27.g5 Nxe4 28.gxh6+ Kh7 29.Bxe4 Ne5 30.Qg5 {#r} 1-0