Stockfish
PGN
| Event | 4th Buenos Aires Open |
| Site | Buenos Aires ARG |
| Date | 2026.05.22 |
| Round | 5.11 |
| White | GM Obregon, A |
| Black | FM Ambrogi, A |
| Result | 1-0 |
| WhiteElo | 2506 |
| BlackElo | 2225 |
| ECO | B00 |
| Opening | Nimzowitsch Defense: Declined Variation |
| PlyCount | 119 |
Moves
1.e4 Nc6 2.Nf3 d5 3.exd5 Qxd5 4.Nc3 Qa5 5.d4 Nf6 6.Bd2 Bg4 7.Nb5 Qb6 8.c4 Bxf3 9.Qxf3 Nxd4 10.Nxd4 Qxd4 11.Qxb7 Qe4+ 12.Qxe4 Nxe4 13.Be3 e6 14.Bd3 Nc5 15.Be2 a5 16.Bd4 O-O-O 17.O-O-O Ne4 18.Bf3 Bc5 19.Bxg7 Nxf2 20.Rxd8+ Rxd8 21.Rf1 Nd3+ 22.Kc2 Bd4 23.Bxd4 Rxd4 24.Kc3 Rd6 25.Be2 Ne5 26.Rf6 c5 27.b3 Rd4 28.g3 Rd8 29.Rh6 Rh8 30.Rh5 Nd7 31.g4 Kc7 32.Bd3 Kd6 33.h3 Nf8 34.a3 Ng6 35.h4 h6 36.g5 f5 37.Rxh6 Rxh6 38.gxh6 Nxh4 39.b4 axb4+ 40.axb4 cxb4+ 41.Kxb4 Ng6 42.c5+ Ke7 43.Be2 Kf6 44.Bh5 Ne7 45.Kc4 Nc6 46.Be8 Ne7 47.Kd4 e5+ 48.Kc4 e4 49.Kd4 Nc8 50.c6 Nd6 51.c7 f4 52.Kd5 Nc8 53.Kxe4 Ne7 54.Kf3 Nc8 55.Kxf4 Nd6 56.Bh5 Nc8 57.Ke4 Ne7 58.Kd4 Nc8 59.Kc5 Ne7 60.Bg4 1-0
