[Event "1st Mercosur ol"]
[Site "Mar del Plata ARG"]
[Date "2009.06.23"]
[Round "4"]
[White "Mahia, Gustavo ARG2"]
[Black "Olivares, Claudio CHI"]
[Result "1/2-1/2"]
[WhiteElo "2393"]
[BlackElo "1996"]
[ECO "A64"]
[EventDate "2009.06.20"]
[PlyCount "98"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 O-O 
9.O-O a6 10.a4 Nbd7 11.Nd2 Re8 12.h3 Rb8 13.Nc4 Ne5 14.Na3 Qc7 15.f4 Ned7 
16.e4 c4 17.Be3 Nh5 18.Kh2 f5 19.Bd4 Nc5 20.Bxg7 Nxg7 21.e5 dxe5 22.d6 Qf7
23.Nxc4 e4 24.Ne5 Qe6 25.Qd5 Nd7 26.Rfd1 Kf8 27.Rac1 Nxe5 28.fxe5 Bd7 29.
Qxe6 Bxe6 30.Nd5 Bxd5 31.Rxd5 Ne6 32.g4 e3 33.gxf5 gxf5 34.Rd3 f4 35.Bd5 
Ng7 36.Rxe3 fxe3 37.Rf1+ Nf5 38.Rxf5+ Kg7 39.e6 Rbd8 40.d7 Re7 41.Re5 Kf6 
42.Rxe3 Rg7 43.Bxb7 Rb8 44.b3 a5 45.Bd5 Ke7 46.Rf3 Rb6 47.Rg3 Rxg3 48.Kxg3
Rd6 49.Bc4 Rd4 {Ilegible} 1/2-1/2

