[Event "Vina del Mar Cepa U2000 4th"]
[Site "Vina del Mar"]
[Date "2017.07.22"]
[Round "3.3"]
[White "Fredes Retamal, Matias"]
[Black "Ulloa Perez, Roberto"]
[Result "1/2-1/2"]
[ECO "C48"]
[WhiteElo "1128"]
[BlackElo "1800"]
[PlyCount "78"]
[EventDate "2017.07.21"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CHI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bd6 5. 0-0 0-0 6. Re1 a6 7. Bxc6 dxc6 8. d4 Bg4 9. dxe5 Bxf3 10. Qxf3 Bxe5 11. Bf4 Qe7 12. Bxe5 Qxe5 13. Rad1 Rad8 14. Qe3 Ng4 15. Qg3 Qxg3 16. hxg3 Rfe8 17. f3 Ne5 18. Kf2 f6 19. f4 Nc4 20. b3 Na3 21. Rc1 Rd2+ 22. Re2 Red8 23. Nb1 Nxb1 24. Rxb1 Rd1 25. Rxd1 Rxd1 26. e5 fxe5 27. fxe5 Kf7 28. c4 Ke6 29. Kf3 Rd4 30. g4 c5 31. Re4 Rxe4 32. Kxe4 g5 33. a3 a5 34. a4 b6 35. Kf3 Kxe5 36. Ke3 c6 37. g3 Kd6 38. Ke4 Ke6 39. Kf3 Kf6 1/2-1/2

[Event "Vina del Mar Cepa U2000 4th"]
[Site "Vina del Mar"]
[Date "2017.07.22"]
[Round "2.2"]
[White "Ulloa Perez, Roberto"]
[Black "Ramirez Gomez, Martin"]
[Result "0-1"]
[ECO "A49"]
[WhiteElo "1800"]
[BlackElo "1586"]
[PlyCount "88"]
[EventDate "2017.07.21"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CHI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. Re1 Re8 7. e4 e5 8. dxe5 dxe5 9. Qxd8 Rxd8 10. Nc3 Nc6 11. a3 a5 12. Bg5 Be6 13. Rad1 Rac8 14. h3 h6 15. Be3 Kf8 16. Bc5+ Ke8 17. Bf1 Nd7 18. Be3 Ne7 19. Rd2 Nf6 20. Red1 Rxd2 21. Rxd2 Rd8 22. Kg2 Rxd2 23. Nxd2 Nc8 24. Nc4 Bxc4 25. Bxc4 Nd6 26. Bd3 Ke7 27. f3 Ke6 28. Nb5 Nfe8 29. Bd2 Nxb5 30. Bxb5 Nd6 31. Bd3 b6 32. b4 axb4 33. axb4 Bf8 34. f4 f6 35. Kf3 Kf7 36. Be3 Kg7 37. Bd2 Kf7 38. c4 Nb7 39. Bc3 Bd6 40. Bc2 c5 41. bxc5 Nxc5 42. Bd2 Ne6 43. Ke3 Nd4 44. Bd3 Bc5 0-1

[Event "Vina del Mar Cepa U2000 4th"]
[Site "Vina del Mar"]
[Date "2017.07.22"]
[Round "4.5"]
[White "Ulloa Perez, Roberto"]
[Black "Villegas Ampuero, Consuelo"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "1800"]
[BlackElo "1087"]
[PlyCount "89"]
[EventDate "2017.07.21"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CHI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 e5 2. b3 Nf6 3. Bb2 Nc6 4. e3 Bc5 5. Nc3 d5 6. cxd5 Nxd5 7. Nf3 Nxc3 8. dxc3 Qxd1+ 9. Rxd1 0-0 10. Bb5 f6 11. h3 Bf5 12. Ke2 Rad8 13. Nh4 Rxd1 14. Rxd1 Be6 15. e4 g5 16. Nf5 Bxf5 17. exf5 Kg7 18. Rd5 Bd6 19. Bxc6 bxc6 20. Ra5 Rb8 21. Rxa7 Rb5 22. c4 Rb8 23. c5 Bxc5 24. Rxc7+ Kh6 25. Rxc6 Bd4 26. Bxd4 exd4 27. Rxf6+ Kg7 28. Rd6 Re8+ 29. Kd2 Re4 30. f3 Rf4 31. Rd5 Kf6 32. Kd3 Rxf5 33. Rxf5+ Kxf5 34. Kxd4 Kf4 35. a4 Kg3 36. a5 Kxg2 37. a6 Kxf3 38. a7 Kg3 39. a8Q Kxh3 40. Ke3 g4 41. Qh1+ Kg3 42. Qg1+ Kh4 43. Kf4 Kh5 44. Qxg4+ Kh6 45. Qg5# 1-0

[Event "Vina del Mar Cepa U2000 4th"]
[Site "Vina del Mar"]
[Date "2017.07.21"]
[Round "1.2"]
[White "Gonzalez Gonzalez, Agustin Patricio"]
[Black "Ulloa Perez, Roberto"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1284"]
[BlackElo "1800"]
[PlyCount "104"]
[EventDate "2017.07.21"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CHI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nf6 5. c4 Nc6 6. Bf4 Bg4 7. c5 Qa5+ 8. Nc3 Ne4 9. Bd2 Nxd2 10. Qxd2 Bxf3 11. gxf3 0-0-0 12. 0-0-0 e6 13. Kb1 Be7 14. Bd3 Bf6 15. Ne2 Qxd2 16. Rxd2 Nxd4 17. Nxd4 Bxd4 18. Bxh7 Bxc5 19. Rc1 b6 20. Bd3 Kd7 21. Bb5+ Ke7 22. Rh1 Rh3 23. Kc2 Rdh8 24. f4 Rxh2 25. Rf1 g6 26. Kc3 R8h3+ 27. Bd3 Rf3 28. b4 Bd6 29. a3 Bxf4 30. Re2 g5 31. Kd4 Rh4 32. Kc3 e5 33. Rfe1 e4 34. Rxe4+ dxe4 35. Rxe4+ Kf6 36. Rc4 Be5+ 37. Kd2 Rxc4 38. Bxc4 Rxa3 39. f4 Bxf4+ 40. Ke2 g4 41. Kf2 Rc3 42. Bd5 Rc2+ 43. Kg1 a5 44. b5 a4 45. Kf1 Rd2 46. Bc4 a3 47. Kg1 a2 48. Bxa2 Rxa2 49. Kf1 Bh2 50. Ke1 g3 51. Kd1 g2 52. Kc1 g1Q# 0-1

