[Event "Rio Negro Open 2022"]
[Site "Cipolletti ARG"]
[Date "2022.05.15"]
[Round "9"]
[White "Mareco, S"]
[Black "Obregon, A"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2653"]
[BlackElo "2503"]
[ECO "B92"]
[Opening "Sicilian Defense: Najdorf Variation, Opocensky Variation"]
[PlyCount "77"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be6 8.f4 Be7 9.O-O Qc7 10.Kh1 b5 11.g4 b4 12.Nd5 Nxd5 13.exd5 Bc8 14.a3 bxa3 15.Rxa3 O-O 16.Na5 exf4 17.Bxf4 Nd7 18.c4 Bf6 19.b4 Be5 20.Be3 Re8 21.Bf3 Nf8 22.c5 Ng6 23.Bf2 f5 24.Nc4 Rb8 25.Nb6 Bf4 26.Be2 dxc5 27.bxc5 Rxb6 28.cxb6 Qd6 29.Rc3 Bb7 30.Rc6 Bxc6 31.dxc6 Qxc6+ 32.Bf3 Qf6 33.Qd5+ Kh8 34.Qxf5 Qc3 35.Bg2 Be5 36.b7 Rf8 37.Qxf8+ Nxf8 38.Bd4 Qb4 39.Rxf8+ 1-0