[Event "BOL-ch"]
[Site "Santa Cruz"]
[Date "2025.04.06"]
[Round "9"]
[White "Tapia, Mauricio"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1894"]
[BlackElo "2384"]
[PlyCount "19"]
[EventDate "2025.04.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CB18_2025"]
[SourceDate "2025.04.30"]
[SourceVersion "1"]
[SourceVersionDate "2025.04.30"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Bc4 e6 5. Nge2 Nf6 6. e5 d5 7. exf6 dxc4 8. fxg7 Bxg7 9. d3 cxd3 10. Qxd3 1/2-1/2

[Event "BOL-ch"]
[Site "Santa Cruz"]
[Date "2025.04.05"]
[Round "8"]
[White "Zambrana, Oswaldo"]
[Black "Gemy Vargas, Jose Daniel"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2384"]
[BlackElo "2328"]
[PlyCount "20"]
[EventDate "2025.04.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CB18_2025"]
[SourceDate "2025.04.30"]
[SourceVersion "1"]
[SourceVersionDate "2025.04.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 a6 6. a4 d6 7. c3 Ba7 8. Be3 0-0 9. Nbd2 Be6 10. Bxe6 fxe6 1/2-1/2

[Event "BOL-ch"]
[Site "Santa Cruz"]
[Date "2025.04.04"]
[Round "6"]
[White "Zambrana, Oswaldo"]
[Black "Titichoca Daza, Daniel Henry"]
[Result "1-0"]
[ECO "B35"]
[WhiteElo "2384"]
[BlackElo "2150"]
[PlyCount "61"]
[EventDate "2025.04.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CB18_2025"]
[SourceDate "2025.04.30"]
[SourceVersion "1"]
[SourceVersionDate "2025.04.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 Re8 9. f3 d5 10. exd5 Nb4 11. Nde2 e6 12. Bd4 Nbxd5 13. Nxd5 exd5 14. 0-0 Bd7 15. Nc3 Bc6 16. Qd2 Rc8 17. Rfe1 Rxe1+ 18. Rxe1 Nh5 19. Ne2 Bf8 20. Bf2 Bd6 21. g3 Qf6 22. Nd4 Ng7 23. Kg2 Nf5 24. c3 Be5 25. Nxf5 Qxf5 26. Bd4 Re8 27. Bc2 Qh5 28. Rxe5 Rxe5 29. g4 Qg5 30. Qxg5 Rxg5 31. h4 1-0

[Event "BOL-ch"]
[Site "Santa Cruz"]
[Date "2025.04.03"]
[Round "5"]
[White "Bolanos, Fernando"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "2211"]
[BlackElo "2384"]
[PlyCount "73"]
[EventDate "2025.04.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CB18_2025"]
[SourceDate "2025.04.30"]
[SourceVersion "1"]
[SourceVersionDate "2025.04.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Nb8 9. a4 Be7 10. Bd2 0-0 11. Be2 Bf5 12. a5 a6 13. Na3 Nd7 14. Nc4 Rc8 15. 0-0 Be4 16. Bb4 Nf6 17. Ne3 Bg6 18. c4 Ne4 19. Bd3 Bg5 20. Rc1 Nxf2 21. Kxf2 e4 22. Be2 f5 23. Rc3 f4 24. Ng4 f3 25. gxf3 Bf4 26. Kg1 h5 27. fxe4 hxg4 28. Bxg4 Qg5 29. Rxf4 Rxf4 30. Rg3 Rxg4 31. Qxg4 Qc1+ 32. Kg2 Rf8 33. Qe6+ Kh8 34. Rh3+ Bh7 35. Rxh7+ Kxh7 36. Qh3+ Kg8 37. Qe6+ 1/2-1/2

[Event "BOL-ch"]
[Site "Santa Cruz"]
[Date "2025.04.03"]
[Round "4"]
[White "Zambrana, Oswaldo"]
[Black "Ticona Rocabado, Licael Roderick"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2384"]
[BlackElo "2353"]
[PlyCount "100"]
[EventDate "2025.04.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CB18_2025"]
[SourceDate "2025.04.30"]
[SourceVersion "1"]
[SourceVersionDate "2025.04.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 0-0 6. c3 d6 7. Re1 h6 8. Nbd2 a6 9. a4 Be6 10. Bxe6 fxe6 11. Nb3 Ba7 12. Be3 Bxe3 13. Rxe3 Qd7 14. d4 Rf7 15. dxe5 Ng4 16. Re2 Ngxe5 17. Nxe5 Nxe5 18. Nd4 Raf8 19. b4 c5 20. Nc2 c4 21. Ne3 Qc6 22. Qd4 Rf4 23. Nf1 Nd3 24. f3 d5 25. Ng3 Rd8 26. Qe3 Rf7 27. exd5 exd5 28. a5 Qf6 29. Ra3 Rdd7 30. Qb6 Qxb6+ 31. axb6 Rf6 32. Re3 d4 33. Re8+ Kf7 34. Rc8 Rxb6 35. Rxc4 dxc3 36. Raxc3 Rxb4 37. Rxb4 Nxb4 38. Ne4 a5 39. g4 Nd5 40. Ra3 b6 41. Kf2 Ke6 42. h4 Ke5 43. Ra1 Kd4 44. Rd1+ Kc4 45. f4 a4 46. g5 a3 47. Nd2+ Kc3 48. Nf3 a2 49. Ne5 Ra7 50. Rc1+ Kb3 0-1

[Event "BOL-ch"]
[Site "Santa Cruz"]
[Date "2025.04.02"]
[Round "3"]
[White "Monroy Garzon, Javier A"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "1973"]
[BlackElo "2384"]
[PlyCount "101"]
[EventDate "2025.04.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CB18_2025"]
[SourceDate "2025.04.30"]
[SourceVersion "1"]
[SourceVersionDate "2025.04.30"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. c4 h6 4. Nc3 Nf6 5. g3 Bd6 6. Bg2 0-0 7. 0-0 Nc6 8. Re1 dxc4 9. Qa4 e5 10. dxe5 Nxe5 11. Nxe5 Bxe5 12. Qxc4 c6 13. Be3 Be6 14. Qb4 Qc7 15. Rad1 a5 16. Qh4 Rfd8 17. h3 Rxd1 18. Rxd1 Bxc3 19. bxc3 Bxa2 20. Bxh6 Qe5 21. Be3 Bb3 22. Ra1 a4 23. Qb4 Nd5 24. Qxb7 Rb8 25. Bd4 Rxb7 26. Bxe5 Re7 27. f4 f6 28. e4 fxe5 29. exd5 cxd5 30. fxe5 Rxe5 31. Kf2 Kf7 32. Bf1 Re7 33. Bb5 Ra7 34. Ra3 Ra5 35. Bc6 Ke6 36. Ke3 Kd6 37. Be8 Ra8 38. Bg6 Kc5 39. h4 Ra6 40. Bf5 Rf6 41. g4 Kc4 42. Kd2 d4 43. Bd3+ Kc5 44. cxd4+ Kb4 45. Ra1 Rf4 46. Rg1 Rxd4 47. Ke3 Rd7 48. h5 Kc3 49. Rc1+ Kb2 50. Rb1+ Kc3 51. Rc1+ 1/2-1/2

[Event "BOL-ch"]
[Site "Santa Cruz"]
[Date "2025.04.02"]
[Round "2"]
[White "Zambrana, Oswaldo"]
[Black "Claure Verastegui, Rene David"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2384"]
[BlackElo "2080"]
[PlyCount "39"]
[EventDate "2025.04.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CB18_2025"]
[SourceDate "2025.04.30"]
[SourceVersion "1"]
[SourceVersionDate "2025.04.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Nb3 e6 7. g4 b5 8. Bg2 Bb7 9. g5 Nfd7 10. Be3 Be7 11. f4 Nc6 12. h4 Na5 13. Qe2 Nc4 14. 0-0-0 Nxe3 15. Qxe3 Qb6 16. Qxb6 Nxb6 17. Na5 0-0-0 18. f5 e5 19. Rhf1 f6 20. gxf6 1/2-1/2

[Event "BOL-ch"]
[Site "Santa Cruz"]
[Date "2025.04.01"]
[Round "1"]
[White "Martinez, Ariel A"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2133"]
[BlackElo "2384"]
[PlyCount "78"]
[EventDate "2025.04.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CB18_2025"]
[SourceDate "2025.04.30"]
[SourceVersion "1"]
[SourceVersionDate "2025.04.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bg5 12. Nc2 Ne7 13. a4 bxa4 14. Rxa4 0-0 15. Bc4 a5 16. 0-0 Bd7 17. Ra2 Rc8 18. Qd3 Nxd5 19. Bxd5 Qb6 20. Na3 Qc5 21. Rd1 Kh8 22. Nc4 a4 23. Nd2 Bd8 24. Nf1 Bb6 25. Ne3 g6 26. Bc4 Be8 27. Qd5 f5 28. exf5 gxf5 29. Qxc5 Bxc5 30. Be6 Rb8 31. Nd5 Rb7 32. Rd2 f4 33. Ra1 e4 34. Re2 e3 35. fxe3 fxe3 36. c4 Rxb2 37. Bg4 Rxe2 38. Bxe2 Rf2 39. Ra2 a3 0-1

[Event "Cusco zt 2.4"]
[Site "Cusco"]
[Date "2025.02.02"]
[Round "9"]
[White "Zambrana, Oswaldo"]
[Black "Carbajal, Augusto"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2398"]
[BlackElo "2103"]
[PlyCount "44"]
[EventDate "2025.01.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB06_2025"]
[SourceDate "2025.02.05"]
[SourceVersion "1"]
[SourceVersionDate "2025.02.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 Be6 9. Nc4 Rc8 10. Ne3 Be7 11. Bxf6 Bxf6 12. Bc4 Bg5 13. Ncd5 0-0 14. 0-0 Bxd5 15. Nxd5 Ne7 16. Bb3 Nxd5 17. Qxd5 Qb6 18. Rad1 Be7 19. Qd3 Rcd8 20. Bd5 a5 21. a4 Rd7 22. Qh3 Rc7 1-0

[Event "Cusco zt 2.4"]
[Site "Cusco"]
[Date "2025.02.01"]
[Round "8"]
[White "Vasquez Vargas, Henry Richard"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "D04"]
[WhiteElo "2146"]
[BlackElo "2398"]
[PlyCount "80"]
[EventDate "2025.01.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB06_2025"]
[SourceDate "2025.02.05"]
[SourceVersion "1"]
[SourceVersionDate "2025.02.05"]
[SourceQuality "1"]

1. Nf3 d5 2. e3 Nf6 3. b3 g6 4. Bb2 Bg7 5. d4 0-0 6. c4 c6 7. Nbd2 Nbd7 8. Be2 b6 9. 0-0 Bb7 10. cxd5 Nxd5 11. Qc2 Rc8 12. Rac1 c5 13. Qb1 cxd4 14. Nxd4 Bh6 15. Rxc8 Qxc8 16. Nc4 Qa8 17. Bf3 Nc5 18. Rd1 Rc8 19. Nb5 Bf8 20. Nxa7 Qxa7 21. Bxd5 Bxd5 22. Rxd5 b5 23. Ne5 Qa8 24. Rd1 Bg7 25. Nf3 Ne4 26. h3 b4 27. Bxg7 Kxg7 28. Qb2+ Nc3 29. Rd7 Kf8 30. Qd2 Qe4 31. Ng5 Qf5 32. Rd8+ Rxd8 33. Qxd8+ Kg7 34. Qxe7 Nxa2 35. e4 Qf6 36. Qa7 Qxg5 37. Qxa2 Qc1+ 38. Kh2 Qf4+ 39. g3 Qxe4 40. Qd2 h5 1/2-1/2

[Event "Cusco zt 2.4"]
[Site "Cusco"]
[Date "2025.02.01"]
[Round "7"]
[White "Zambrana, Oswaldo"]
[Black "Alvarado Zamora, Albert"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2398"]
[BlackElo "2152"]
[PlyCount "166"]
[EventDate "2025.01.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB06_2025"]
[SourceDate "2025.02.05"]
[SourceVersion "1"]
[SourceVersionDate "2025.02.05"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d5 4. exd5 Nf6 5. Bc4 Nbd7 6. Bg5 Nb6 7. Bxf6 Bxf6 8. Bb3 0-0 9. Nge2 a5 10. a4 c6 11. dxc6 bxc6 12. 0-0 Ba6 13. Re1 Bg7 14. Qc1 Rb8 15. Qg5 Nd5 16. Rad1 e6 17. Qg3 Rb4 18. Ne4 Qe7 19. h4 h6 20. Nc5 Bxe2 21. Rxe2 Rxd4 22. Rxd4 Bxd4 23. Nxe6 fxe6 24. Qxg6+ Qg7 25. Qxe6+ Kh8 26. Bxd5 cxd5 27. c3 Ba7 28. Qxd5 Qf6 29. Qd2 Qxh4 30. b4 Rd8 31. Qe1 Rg8 32. Re6 Bb8 33. Qe4 Qxe4 34. Rxe4 Rc8 35. g3 Kg7 36. Re7+ Kf6 37. Rh7 Kg6 38. Rb7 Bc7 39. Ra7 Bd8 40. Rd7 Bf6 41. bxa5 Ra8 42. Rd5 Ra6 43. c4 Kf7 44. Kg2 Ke6 45. Rh5 Bg7 46. Rb5 Bd4 47. Rh5 Ke7 48. f4 Bc3 49. Kf3 Bxa5 50. Kg4 Bc3 51. Rb5 Rxa4 52. Kh5 Rxc4 53. Kxh6 Kf7 54. Kg5 Bb4 55. Rf5+ Kg7 56. Rd5 Rc6 57. Kg4 Be7 58. Re5 Kf7 59. Rf5+ Kg7 60. Re5 Kf7 61. Rf5+ Ke6 62. Re5+ Kd6 63. Rh5 Rc3 64. Re5 Bf6 65. Rf5 Bd4 66. Rg5 Ke6 67. Kh3 Kf6 68. Kg2 Be3 69. Re5 Rc2+ 70. Kh3 Bc5 71. Kg4 Rc3 72. Rf5+ Ke6 73. Re5+ Kd6 74. Rg5 Kc6 75. Kh5 Rf3 76. Kg4 Rf1 77. Re5 Kb5 78. Re4 Bd6 79. Kf5 Kc6 80. g4 Kd7 81. g5 Bxf4 82. Rxf4 Rxf4+ 83. Kxf4 Ke6 1/2-1/2

[Event "Cusco zt 2.4"]
[Site "Cusco"]
[Date "2025.01.31"]
[Round "6"]
[White "Mayta Aiza, Maveric"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "B26"]
[WhiteElo "2146"]
[BlackElo "2398"]
[PlyCount "133"]
[EventDate "2025.01.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB06_2025"]
[SourceDate "2025.02.05"]
[SourceVersion "1"]
[SourceVersionDate "2025.02.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 Nf6 7. h3 0-0 8. Qd2 Rb8 9. a4 Nd4 10. Nge2 e5 11. f4 a6 12. a5 Ne8 13. 0-0 Nc7 14. Rf2 exf4 15. Nxf4 Be6 16. Raf1 Qd7 17. g4 Nc6 18. Nce2 Nb5 19. Ng3 Be5 20. Nfe2 f6 21. Nf4 Nbd4 22. Qe1 Bf7 23. Qd1 Nxa5 24. h4 Nac6 25. Bh3 Qd8 26. c3 Ne6 27. Nge2 Nxf4 28. Nxf4 Qb6 29. Bg2 Qb3 30. Qd2 Qb6 31. Ne2 Na5 32. Bh6 d5 33. exd5 Rfe8 34. Bf4 Nb3 35. Qc2 c4 36. dxc4 Bxf4 37. Nxf4 Re3 38. Kh1 Rbe8 39. Nh3 Re1 40. Ng1 Rxf1 41. Rxf1 a5 42. Qf2 Qxf2 43. Rxf2 Kg7 44. Nf3 a4 45. Nd4 Nc5 46. Kh2 Re3 47. Nb5 Be8 48. Nd4 Bd7 49. Nc2 Rd3 50. Bf3 Kf7 51. Kg2 Ke7 52. Nb4 Re3 53. Nc2 Re5 54. Rd2 Kd6 55. Kf2 Bxg4 56. Bxg4 Ne4+ 57. Ke3 Nxd2+ 58. Kxd2 Re4 59. Ne3 f5 60. Kd3 Rxe3+ 61. Kxe3 fxg4 62. Kf4 h5 63. Ke4 Kc5 64. Kf4 Kd6 65. Ke4 Kc5 66. Kf4 Kd6 67. Ke4 1/2-1/2

[Event "Cusco zt 2.4"]
[Site "Cusco"]
[Date "2025.01.30"]
[Round "4"]
[White "Soria Castillo, Ricardo"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "B24"]
[WhiteElo "1883"]
[BlackElo "2398"]
[PlyCount "30"]
[EventDate "2025.01.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB06_2025"]
[SourceDate "2025.02.05"]
[SourceVersion "1"]
[SourceVersionDate "2025.02.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. f4 e6 6. Nf3 Nge7 7. d3 d5 8. 0-0 0-0 9. e5 Bd7 10. g4 a6 11. a3 Rc8 12. Qe1 Nd4 13. Qf2 f6 14. exf6 Bxf6 15. Kh1 Kh8 0-1

[Event "Cusco zt 2.4"]
[Site "Cusco"]
[Date "2025.01.30"]
[Round "5"]
[White "Zambrana, Oswaldo"]
[Black "Alarco, Alvaro"]
[Result "1-0"]
[ECO "C03"]
[WhiteElo "2398"]
[BlackElo "2022"]
[PlyCount "51"]
[EventDate "2025.01.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB06_2025"]
[SourceDate "2025.02.05"]
[SourceVersion "1"]
[SourceVersionDate "2025.02.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Bd3 c5 5. dxc5 Nf6 6. Qe2 Nc6 7. c3 Bxc5 8. Ngf3 a6 9. 0-0 0-0 10. e5 Nd7 11. Nb3 Be7 12. Nbd4 Re8 13. Bf4 Nf8 14. Bg3 Bd7 15. Rfd1 Qb6 16. h4 f5 17. exf6 gxf6 18. Nxc6 bxc6 19. Ne5 fxe5 20. Qg4+ Kf7 21. Qh5+ Kg8 22. Bxe5 Bf6 23. Bxf6 e5 24. Bxh7+ Nxh7 25. Qg6+ Kf8 26. Qg7# 1-0

[Event "Cusco zt 2.4"]
[Site "Cusco"]
[Date "2025.01.29"]
[Round "3"]
[White "Zambrana, Oswaldo"]
[Black "Moscoso Tellez, Joe Goldtie Marshal"]
[Result "1-0"]
[ECO "B63"]
[WhiteElo "2398"]
[BlackElo "1813"]
[PlyCount "67"]
[EventDate "2025.01.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB06_2025"]
[SourceDate "2025.02.05"]
[SourceVersion "1"]
[SourceVersionDate "2025.02.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 h6 8. Bxf6 gxf6 9. 0-0-0 a6 10. f4 Qb6 11. Nb3 Bd7 12. Be2 h5 13. Kb1 0-0-0 14. Bf3 h4 15. Qe2 Be8 16. Bg4 Kb8 17. f5 Ne5 18. fxe6 fxe6 19. Bxe6 Bh5 20. Qf1 Bxd1 21. Qxd1 Bg7 22. Nd5 Qa7 23. Nd4 Nc4 24. Nf5 Bh6 25. Qe2 Qc5 26. Ka1 Bg5 27. b4 Qb5 28. Nd4 Qe8 29. Qxc4 Qa4 30. Qc7+ Ka7 31. Qb6+ Kb8 32. b5 axb5 33. Nc6+ Ka8 34. Nc7# 1-0

[Event "Cusco zt 2.4"]
[Site "Cusco"]
[Date "2025.01.28"]
[Round "1"]
[White "Zambrana, Oswaldo"]
[Black "Gallegos Quispe, Daniel Paolo"]
[Result "1-0"]
[ECO "B98"]
[WhiteElo "2398"]
[BlackElo "1810"]
[PlyCount "49"]
[EventDate "2025.01.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CB06_2025"]
[SourceDate "2025.02.05"]
[SourceVersion "1"]
[SourceVersionDate "2025.02.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qe2 Be7 8. f4 Nbd7 9. 0-0-0 Qc7 10. Nf3 Nb6 11. g3 0-0 12. Bg2 Re8 13. e5 dxe5 14. Qxe5 Qxe5 15. Nxe5 h6 16. Bh4 Nfd7 17. Nxd7 Nxd7 18. Bxe7 Rxe7 19. Rd6 Rb8 20. a4 b6 21. Rhd1 Bb7 22. Bxb7 Rxb7 23. Rc6 f6 24. Ne4 Kf8 25. Rc8+ 1-0

[Event "Colonia del Sacramento 4th"]
[Site "Colonia del Sacramento"]
[Date "2024.12.12"]
[Round "8"]
[White "Coppola, Claudio"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2212"]
[BlackElo "2404"]
[PlyCount "120"]
[EventDate "2024.12.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "URU"]
[EventCategory "2"]
[SourceTitle "CB04_2025"]
[SourceDate "2025.01.22"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Qc7 5. c3 a6 6. Ba4 b5 7. Bc2 Bb7 8. a4 Bg7 9. axb5 axb5 10. Rxa8+ Bxa8 11. d4 cxd4 12. Nxd4 Nxd4 13. cxd4 Nf6 14. f3 0-0 15. Be3 Rb8 16. Nd2 d6 17. Bd3 Nd7 18. Qc1 Qb6 19. Nb3 Bb7 20. d5 Qd8 21. Qd2 Ne5 22. Bd4 Bc8 23. Rc1 Bd7 24. Be2 e6 25. f4 Bh6 26. Nc5 exd5 27. Bxe5 dxe5 28. Qxd5 Bxf4 29. Nxd7 Bxc1 30. Nxb8 Qxb8 31. Qxb5 Qd6 32. Qd3 Qc5+ 33. Kh1 Bxb2 34. g3 Qc1+ 35. Qd1 Qc5 36. Bd3 Bd4 37. Qf1 Qc6 38. Kg2 Kg7 39. Qf3 h5 40. h4 Qc1 41. Qf1 Qe3 42. Kh3 f6 43. Qe2 Qc1 44. Qf1 Qc8+ 45. Kg2 Qc3 46. Qe2 Bb6 47. Qf1 Qd4 48. Kh3 Ba5 49. Kg2 Be1 50. Qe2 Kh6 51. Qf1 Qe3 52. Qf3 Qd2+ 53. Qe2 Qc1 54. Qf1 Kg7 55. Qe2 Kh6 56. Qf1 Qe3 57. Qf3 Qxf3+ 58. Kxf3 g5 59. hxg5+ fxg5 60. g4 h4 1/2-1/2

[Event "Colonia del Sacramento 4th"]
[Site "Colonia del Sacramento"]
[Date "2024.12.12"]
[Round "9"]
[White "Zambrana, Oswaldo"]
[Black "Romero Barreto, Jaime Jose"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2404"]
[BlackElo "2307"]
[PlyCount "139"]
[EventDate "2024.12.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "URU"]
[EventCategory "2"]
[SourceTitle "CB04_2025"]
[SourceDate "2025.01.22"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 d6 6. c3 a5 7. Nbd2 Ba7 8. h3 0-0 9. Re1 Be6 10. Bb5 Ne7 11. d4 Ng6 12. Bd3 c6 13. Nf1 Nh5 14. Nxe5 dxe5 15. Qxh5 exd4 16. c4 Bb8 17. e5 f5 18. f4 a4 19. Nh2 Qe8 20. Bd2 c5 21. Kh1 Bc7 22. Nf3 h6 23. Rf1 Ne7 24. Qxe8 Rfxe8 25. b4 axb3 26. axb3 b5 27. Rfc1 b4 28. Ne1 Bd7 29. Be2 Bc6 30. Nd3 Bb6 31. Kg1 Be4 32. Nf2 Bb7 33. Bf3 Bxf3 34. gxf3 Nc6 35. Nd3 Ra5 36. Rxa5 Nxa5 37. Rb1 Ra8 38. Ra1 Ra7 39. Nc1 Kf7 40. Kf2 Ke6 41. h4 g6 42. Ra4 Nc6 43. Rxa7 Nxa7 44. Kg3 Bd8 45. Nd3 Be7 46. Bc1 Nc6 47. Bd2 Na5 48. Nc1 Bd8 49. Kh3 Be7 50. Kg3 Kd7 51. Be1 Kc6 52. Kg2 Kc7 53. Kg3 Kb6 54. h5 gxh5 55. Kh3 Kc6 56. Bh4 Kd7 57. Bxe7 Kxe7 58. Kh4 d3 59. Nxd3 Nxb3 60. Kxh5 Nd2 61. Nxc5 b3 62. Nd3 Nxc4 63. Kg6 b2 64. Nxb2 Nxb2 65. Kxf5 Kf7 66. e6+ Kg7 67. e7 Kf7 68. e8Q+ Kxe8 69. Kg6 Kf8 70. Kxh6 1/2-1/2

[Event "Colonia del Sacramento 4th"]
[Site "Colonia del Sacramento"]
[Date "2024.12.11"]
[Round "7"]
[White "Zambrana, Oswaldo"]
[Black "Carbone, Diego"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2404"]
[BlackElo "2233"]
[PlyCount "155"]
[EventDate "2024.12.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "URU"]
[EventCategory "2"]
[SourceTitle "CB04_2025"]
[SourceDate "2025.01.22"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. 0-0 0-0 6. c3 d5 7. exd5 Nxd5 8. a4 a5 9. Re1 Bg4 10. h3 Bh5 11. Nbd2 Nb6 12. Bb5 Bd6 13. Qb3 Re8 14. Ne4 Bxf3 15. gxf3 Re6 16. Kh2 Na7 17. Be3 Nxb5 18. Qxb5 Bf8 19. Bxb6 Rxb6 20. Qxe5 Rxb2 21. d4 Rxf2+ 22. Kg3 Rc2 23. Rac1 Rxc1 24. Rxc1 Ra6 25. Kh2 Re6 26. Qf4 g6 27. Rg1 Bd6 28. Nxd6 Qxd6 29. Qxd6 Rxd6 30. Rb1 b6 31. Kg3 Kg7 32. Kf4 Kf6 33. h4 Rc6 34. Rb3 Rc4 35. Ke4 Ke6 36. Ra3 Kd7 37. Kd3 Rc6 38. c4 Rf6 39. Ke3 Re6+ 40. Kf2 Ke7 41. Rb3 Rc6 42. Rc3 Kf6 43. Kg3 Kf5 44. Rc1 h5 45. Kf2 Kf4 46. c5 bxc5 47. d5 Rb6 48. Rc4+ Ke5 49. Rxc5 Rb4 50. Kg3 Rxa4 51. Rxc7 f6 52. Rg7 Kf5 53. d6 Rd4 54. Ra7 Rxd6 55. Rxa5+ Ke6 56. Ra8 Rd5 57. Re8+ Kf5 58. Rh8 Ra5 59. Rh7 Ra4 60. Rh8 Rb4 61. Rh7 g5 62. hxg5 Kg6 63. Rh8 fxg5 64. Rg8+ Kf6 65. Rf8+ Kg7 66. Ra8 Rf4 67. Ra6 Rf6 68. Ra5 Kg6 69. Ra8 h4+ 70. Kg2 Rb6 71. Rg8+ Kf5 72. Rf8+ Rf6 73. Re8 g4 74. fxg4+ Kxg4 75. Rg8+ Kf4 76. Kh3 Rf7 77. Rg4+ Kf3 78. Rxh4 1/2-1/2

[Event "Colonia del Sacramento 4th"]
[Site "Colonia del Sacramento"]
[Date "2024.12.10"]
[Round "5"]
[White "Guerrero, Alvaro"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2048"]
[BlackElo "2404"]
[PlyCount "110"]
[EventDate "2024.12.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "URU"]
[EventCategory "2"]
[SourceTitle "CB04_2025"]
[SourceDate "2025.01.22"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.22"]
[SourceQuality "1"]

1. e4 c5 2. d3 Nc6 3. Nf3 g6 4. g3 Bg7 5. Bg2 Nf6 6. c3 0-0 7. 0-0 d6 8. Re1 h6 9. a4 a6 10. Nbd2 Rb8 11. h3 b5 12. axb5 axb5 13. d4 Nd7 14. Nb3 c4 15. Nbd2 Qc7 16. Nf1 Na5 17. Ne3 Nb3 18. Nd5 Qd8 19. Ra7 e6 20. Nc7 Nxc1 21. Qxc1 Rb6 22. Qa1 Bb7 23. Na6 e5 24. Nb4 exd4 25. cxd4 Re8 26. Nd5 Bxd5 27. exd5 Rxe1+ 28. Qxe1 Rb8 29. Qb4 Nf6 30. Ra6 Nxd5 31. Qxd6 Qxd6 32. Rxd6 Nb6 33. Ne5 b4 34. Rc6 Bxe5 35. dxe5 Na4 36. Rxc4 Nxb2 37. Rc7 Rb5 38. Rc2 Nd1 39. f4 b3 40. Rc1 Ne3 41. Be4 b2 42. Re1 Rb4 43. Bb1 Nd5 44. e6 fxe6 45. Bxg6 Rb6 46. Bb1 Nc3 47. Kf2 Nxb1 48. Rxb1 Rb3 49. Ke1 Kf7 50. g4 Kf6 51. Kd2 Rb4 52. Kc2 Rxf4 53. Rxb2 Rf2+ 54. Kc1 Rxb2 55. Kxb2 Kg5 0-1

[Event "Colonia del Sacramento 4th"]
[Site "Colonia del Sacramento"]
[Date "2024.12.10"]
[Round "6"]
[White "Pinero Rodriguez, Carlos Jose"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2302"]
[BlackElo "2404"]
[PlyCount "25"]
[EventDate "2024.12.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "URU"]
[EventCategory "2"]
[SourceTitle "CB04_2025"]
[SourceDate "2025.01.22"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.22"]
[SourceQuality "1"]

1. c4 e6 2. d4 d5 3. Nc3 h6 4. Nf3 Nf6 5. a3 b6 6. Bf4 Bb7 7. e3 Bd6 8. Bg3 0-0 9. Be2 Nbd7 10. 0-0 dxc4 11. Bxc4 Bxg3 12. hxg3 c5 13. d5 1/2-1/2

[Event "Colonia del Sacramento 4th"]
[Site "Colonia del Sacramento"]
[Date "2024.12.09"]
[Round "4"]
[White "Zambrana, Oswaldo"]
[Black "Villegas, Franco"]
[Result "1-0"]
[ECO "B66"]
[WhiteElo "2404"]
[BlackElo "2326"]
[PlyCount "93"]
[EventDate "2024.12.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "URU"]
[EventCategory "2"]
[SourceTitle "CB04_2025"]
[SourceDate "2025.01.22"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Be7 7. Qd2 Nc6 8. 0-0-0 Nxd4 9. Qxd4 0-0 10. Bc4 a6 11. Bb3 b5 12. f4 Bb7 13. Rhe1 Rb8 14. a3 a5 15. Nxb5 Nxe4 16. Bxe7 Qxe7 17. Nc3 Nxc3 18. Qxc3 Rfc8 19. Qxa5 Bxg2 20. Kb1 d5 21. f5 Qf6 22. fxe6 fxe6 23. Re3 Be4 24. Rxe4 dxe4 25. Qa6 Kh8 26. Re1 Qh4 27. Qe2 Rd8 28. Ka2 Rd4 29. c3 Rd6 30. Qxe4 Qh6 31. Re2 Rdb6 32. Bc4 Qc1 33. Qg2 e5 34. Bd3 g6 35. Rc2 Qf4 36. Qe4 Qf7+ 37. Bc4 Qe7 38. b4 Rf6 39. Re2 Rc8 40. b5 Qc5 41. Kb3 Rf4 42. Qxe5+ Qxe5 43. Rxe5 Rfxc4 44. Re3 Rf4 45. a4 Rf1 46. Re2 Ra1 47. Re4 1-0

[Event "Colonia del Sacramento 4th"]
[Site "Colonia del Sacramento"]
[Date "2024.12.08"]
[Round "3"]
[White "Alonso, Salvador"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "2470"]
[BlackElo "2404"]
[PlyCount "95"]
[EventDate "2024.12.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "URU"]
[EventCategory "2"]
[SourceTitle "CB04_2025"]
[SourceDate "2025.01.22"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 Bg7 11. g3 f5 12. Bg2 fxe4 13. Bxe4 Rb8 14. Qh5 Ne7 15. Nxe7 Qxe7 16. c3 Bb7 17. Bxb7 Qxb7 18. 0-0 0-0 19. Rad1 Rbd8 20. Nc2 f5 21. Ne3 Qd7 22. Nd5 Kh8 23. f4 Qe6 24. Rf2 Rc8 25. Rfd2 a5 26. Qe2 Rb8 27. a3 Qf7 28. Qf3 Qb7 29. Kg2 Rbe8 30. Ne3 Qa7 31. Nf1 exf4 32. gxf4 b4 33. axb4 axb4 34. cxb4 Re4 35. Rxd6 Rxb4 36. Rd7 Rxb2+ 37. Kh3 Qb6 38. R7d6 Qa5 39. R6d2 Rb4 40. Ng3 Qa4 41. Rf1 Qa6 42. Rff2 Qh6+ 43. Kg2 Qg6 44. Rc2 Re4 45. Kh3 Re6 46. Rfd2 Rg8 47. Rd7 Qe8 48. Rcc7 1/2-1/2

[Event "Colonia del Sacramento 4th"]
[Site "Colonia del Sacramento"]
[Date "2024.12.08"]
[Round "2"]
[White "Zambrana, Oswaldo"]
[Black "Larrea, Manuel"]
[Result "0-1"]
[ECO "B67"]
[WhiteElo "2404"]
[BlackElo "2259"]
[PlyCount "70"]
[EventDate "2024.12.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "URU"]
[EventCategory "2"]
[SourceTitle "CB04_2025"]
[SourceDate "2025.01.22"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f3 Be7 10. h4 h6 11. Be3 h5 12. Nxc6 Bxc6 13. Ne2 d5 14. e5 Nd7 15. f4 Bb5 16. Nd4 Bxf1 17. Rdxf1 g6 18. g4 hxg4 19. h5 gxh5 20. f5 Nc5 21. Rfg1 Ne4 22. Qe1 Kd7 23. Kb1 Qc7 24. Ne2 Rag8 25. Bd4 h4 26. f6 Bc5 27. Bxc5 Qxc5 28. Rxh4 Nd2+ 29. Qxd2 Rxh4 30. a3 Rh2 31. Rg3 Qc4 32. Rb3 Rxe2 33. Qa5 Rxc2 34. Qb6 Rc1+ 35. Ka2 Qc7 0-1

[Event "Colonia del Sacramento 4th"]
[Site "Colonia del Sacramento"]
[Date "2024.12.07"]
[Round "1"]
[White "Perez Candelas, Andres Eloy"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2247"]
[BlackElo "2404"]
[PlyCount "62"]
[EventDate "2024.12.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "URU"]
[EventCategory "2"]
[SourceTitle "CB04_2025"]
[SourceDate "2025.01.22"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.22"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 g6 5. Nf3 Bg7 6. Be3 cxd4 7. cxd4 Qa5+ 8. Nc3 Nh6 9. Bc4 0-0 10. 0-0 Nf5 11. Bd2 Qd8 12. d5 Nd7 13. Re1 a6 14. a4 Nd6 15. Ba2 Nf6 16. Bf4 Re8 17. h3 Bf5 18. Nd4 Qb6 19. Nxf5 Nxf5 20. g4 Qxb2 21. Be5 Nxg4 22. Re2 Qxa1 23. Qxa1 Nxe5 24. Kh1 Rac8 25. d6 exd6 26. Nd5 Nf3 27. Nf6+ Kh8 28. Rxe8+ Rxe8 29. Qc3 N5h4 30. Nxe8 Bxc3 31. Nxd6 b6 0-1

[Event "Bolivarian Games Blitz"]
[Site "Lima"]
[Date "2024.12.03"]
[Round "2.9"]
[White "Baules Rodriguez, Jorge Luis"]
[Black "Zambrana, Oswaldo"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2264"]
[BlackElo "2404"]
[PlyCount "89"]
[EventDate "2024.12.03"]
[EventType "team (blitz)"]
[EventRounds "5"]
[EventCountry "PER"]
[SourceTitle "CB50_2024"]
[SourceDate "2024.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.11.01"]
[SourceQuality "2"]
[WhiteTeam "Panama"]
[BlackTeam "Bolivia"]
[WhiteTeamCountry "PAN"]
[BlackTeamCountry "BOL"]

1. Nf3 Nf6 2. g3 e6 3. Bg2 d5 4. d4 Bd6 5. 0-0 h6 6. c4 0-0 7. Qc2 b6 8. Nc3 Bb7 9. Nb5 Nbd7 10. cxd5 exd5 11. Nxd6 cxd6 12. Bf4 Ne4 13. Rac1 Ndf6 14. Qc7 Ba6 15. Rfe1 Re8 16. h3 Bc4 17. Qxd8 Rexd8 18. b3 Ba6 19. Nd2 Nxd2 20. Bxd2 Rac8 21. Bb4 Rxc1 22. Rxc1 Bxe2 23. Rc7 a5 24. Ba3 Bd3 25. Rc6 b5 26. Bxd6 Ne4 27. Be5 b4 28. f3 Nc3 29. Bc7 Rc8 30. Rc5 a4 31. Ba5 Rxc5 32. dxc5 Nxa2 33. f4 Be4 34. Bxe4 dxe4 35. c6 axb3 36. c7 b2 37. c8Q+ Kh7 38. Qc2 b1Q+ 39. Qxb1 Nc3 40. Qc2 f5 41. Bxb4 Nd5 42. Bc5 Nf6 43. Bd4 Nh5 44. Kg2 Kg6 45. Qc6+ 1-0

[Event "Bolivarian Games Blitz"]
[Site "Lima"]
[Date "2024.12.03"]
[Round "5.5"]
[White "Giron Chavez, David Emanuel"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2051"]
[BlackElo "2404"]
[PlyCount "87"]
[EventDate "2024.12.03"]
[EventType "team (blitz)"]
[EventRounds "5"]
[EventCountry "PER"]
[SourceTitle "CB50_2024"]
[SourceDate "2024.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.11.01"]
[SourceQuality "2"]
[WhiteTeam "Guatemala"]
[BlackTeam "Bolivia"]
[WhiteTeamCountry "GUA"]
[BlackTeamCountry "BOL"]

1. Nf3 Nf6 2. g3 d5 3. c4 e6 4. Bg2 Bd6 5. 0-0 0-0 6. b3 b6 7. Bb2 Bb7 8. d3 Nbd7 9. Nbd2 c5 10. e4 Qc7 11. Qe2 dxe4 12. Nxe4 Be7 13. Nc3 a6 14. d4 cxd4 15. Nxd4 Bxg2 16. Kxg2 Rfd8 17. Rfe1 Bb4 18. Rac1 Rac8 19. Red1 h5 20. h3 h4 21. g4 Nf8 22. Ne4 Nxe4 23. Qxe4 Ng6 24. Ne2 Bd2 25. Rc2 Bg5 26. Rd4 Rxd4 27. Qxd4 Bf6 28. Qe4 Bxb2 29. Rxb2 Rd8 30. Rc2 Qc5 31. Qe3 Qc6+ 32. Qf3 Qxf3+ 33. Kxf3 Rd3+ 34. Kg2 e5 35. b4 Ne7 36. c5 bxc5 37. Rxc5 f6 38. Rc2 Ra3 39. Rb2 Nd5 40. Rd2 Nxb4 41. Rd8+ Kh7 42. Rd2 Rxa2 43. Rxa2 Nxa2 44. Kf3 0-1

[Event "Bolivarian Games Blitz"]
[Site "Lima"]
[Date "2024.12.03"]
[Round "4.9"]
[White "Zambrana, Oswaldo"]
[Black "Avila Pavas, Santiago"]
[Result "0-1"]
[ECO "B04"]
[WhiteElo "2404"]
[BlackElo "2511"]
[PlyCount "122"]
[EventDate "2024.12.03"]
[EventType "team (blitz)"]
[EventRounds "5"]
[EventCountry "PER"]
[SourceTitle "CB50_2024"]
[SourceDate "2024.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.11.01"]
[SourceQuality "2"]
[WhiteTeam "Bolivia"]
[BlackTeam "Colombia"]
[WhiteTeamCountry "BOL"]
[BlackTeamCountry "COL"]

1. e4 Nf6 2. e5 Nd5 3. Nf3 d6 4. d4 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. Qe2 0-0 8. h3 c5 9. dxc5 dxc5 10. c3 Bf5 11. Bc2 Bxc2 12. Qxc2 Nc6 13. Qe2 Qd5 14. Bf4 Qc4 15. Bg3 Qxe2+ 16. Kxe2 Nc4 17. Nbd2 N4xe5 18. Nxe5 Nxe5 19. a4 Rad8 20. Bxe5 Bxe5 21. Nc4 Bg7 22. Rhd1 b6 23. f3 f5 24. Na3 Be5 25. Nb5 Bb8 26. Na3 Kf7 27. Nc4 e6 28. b4 cxb4 29. cxb4 Ke7 30. Rac1 Rxd1 31. Rxd1 Rc8 32. Kd3 Rd8+ 33. Kc2 Rxd1 34. Kxd1 e5 35. Ke2 Ke6 36. Kd3 Bd6 37. b5 Bc5 38. g4 Kd5 39. Nd2 Bb4 40. Nf1 e4+ 41. fxe4+ fxe4+ 42. Kc2 Kd4 43. Kd1 Kd3 44. Ng3 e3 45. h4 Bd6 46. Ne2 h5 47. gxh5 gxh5 48. Ke1 Be5 49. Kd1 Ke4 50. Kc2 Kf3 51. Kd3 Bf6 52. Ng1+ Kf2 53. Nh3+ Kg3 54. Ng1 Kg2 55. Ne2 Kf2 56. Nf4 Bxh4 57. Nh3+ Kf3 58. Ng1+ Kg2 59. Ne2 Kf2 60. Nf4 Bg3 61. Ne2 h4 0-1

[Event "Bolivarian Games Blitz"]
[Site "Lima"]
[Date "2024.12.03"]
[Round "3.1"]
[White "Zambrana, Oswaldo"]
[Black "Cori, Jorge Moise"]
[Result "0-1"]
[ECO "B77"]
[WhiteElo "2404"]
[BlackElo "2595"]
[PlyCount "122"]
[EventDate "2024.12.03"]
[EventType "team (blitz)"]
[EventRounds "5"]
[EventCountry "PER"]
[SourceTitle "CB50_2024"]
[SourceDate "2024.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.11.01"]
[SourceQuality "2"]
[WhiteTeam "Bolivia"]
[BlackTeam "Peru"]
[WhiteTeamCountry "BOL"]
[BlackTeamCountry "PER"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 d6 9. f3 Qa5 10. Qd2 Nxd4 11. Bxd4 Be6 12. 0-0 Rac8 13. Qf2 Nd7 14. Bxg7 Kxg7 15. Rfe1 Qc5 16. Nd5 Qxf2+ 17. Kxf2 Bxd5 18. exd5 Kf6 19. c3 h5 20. h4 Rc7 21. Rad1 b5 22. Rd4 Ne5 23. Rf4+ Kg7 24. Rd4 a5 25. a3 Rb8 26. f4 Ng4+ 27. Kf3 Nf6 28. Rd2 Kf8 29. g3 Nd7 30. f5 gxf5 31. Kf4 b4 32. cxb4 axb4 33. a4 Nc5 34. Bc2 b3 35. Bxf5 Nxa4 36. Kg5 Nb6 37. Rf1 Kg7 38. Kxh5 Nc4 39. Rdf2 Ne3 40. Re1 Nxd5 41. Kg5 Rb5 42. Kg4 Nf6+ 43. Kh3 Rb4 44. g4 Nd5 45. Kg3 Rd4 46. Ref1 Ne3 47. Re1 Nc4 48. g5 Ne5 49. Re3 f6 50. Rxb3 fxg5 51. hxg5 Nf7 52. g6 Ne5 53. Re3 Rb4 54. b3 Rcb7 55. Be6 Kxg6 56. Rf4 Rxf4 57. Kxf4 Kf6 58. Bd5 Rb4+ 59. Kg3 e6 60. Bc4 Nxc4 61. bxc4 Rxc4 0-1

[Event "Bolivarian Games Blitz"]
[Site "Lima"]
[Date "2024.12.03"]
[Round "1.5"]
[White "Zambrana, Oswaldo"]
[Black "Ynojosa Aponte, Felix Jose"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2404"]
[BlackElo "2413"]
[PlyCount "77"]
[EventDate "2024.12.03"]
[EventType "team (blitz)"]
[EventRounds "5"]
[EventCountry "PER"]
[SourceTitle "CB50_2024"]
[SourceDate "2024.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.11.01"]
[SourceQuality "2"]
[WhiteTeam "Bolivia"]
[BlackTeam "Venezuela"]
[WhiteTeamCountry "BOL"]
[BlackTeamCountry "VEN"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 b5 8. Nd5 Nf6 9. Bg5 Be7 10. Bxf6 Bxf6 11. c4 b4 12. Nc2 Rb8 13. b3 Bg5 14. g3 0-0 15. Bg2 a5 16. 0-0 Ne7 17. h4 Nxd5 18. Qxd5 Be6 19. Qd3 Be7 20. Rfd1 Qb6 21. Ne3 Qc5 22. Nf5 Bxf5 23. exf5 Rbd8 24. Be4 Rd7 25. Qf3 Bd8 26. Rd5 Qa7 27. Rad1 Bb6 28. Rxd6 Rxd6 29. Rxd6 Bd4 30. f6 g6 31. Kg2 Qc7 32. Rc6 Qd7 33. Bd5 Rc8 34. Ra6 Re8 35. Qe4 Qd8 36. h5 Kf8 37. hxg6 fxg6 38. Qh4 Qd7 39. Qh6+ 1-0

[Event "Bolivarian Games Rapid"]
[Site "Lima"]
[Date "2024.12.02"]
[Round "2.9"]
[White "Baules Rodriguez, Jorge Luis"]
[Black "Zambrana, Oswaldo"]
[Result "1-0"]
[ECO "A64"]
[WhiteElo "2264"]
[BlackElo "2404"]
[PlyCount "83"]
[EventDate "2024.12.02"]
[EventType "team (rapid)"]
[EventRounds "5"]
[EventCountry "PER"]
[SourceTitle "CB50_2024"]
[SourceDate "2024.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.11.01"]
[SourceQuality "2"]
[WhiteTeam "Panama"]
[BlackTeam "Bolivia"]
[WhiteTeamCountry "PAN"]
[BlackTeamCountry "BOL"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. g3 Bg7 8. Bg2 0-0 9. 0-0 a6 10. a4 Nbd7 11. h3 Re8 12. Nd2 Rb8 13. Nc4 Ne5 14. Na3 Nh5 15. e4 Bd7 16. a5 Qxa5 17. g4 Nf6 18. f4 Bxg4 19. hxg4 Nfxg4 20. fxe5 Nxe5 21. Bf4 Qb4 22. Rb1 c4 23. Nc2 Qc5+ 24. Be3 Qc7 25. Bd4 Nd3 26. Bxg7 Kxg7 27. Qf3 Qe7 28. Qe3 b5 29. Nd4 Rb7 30. b3 Ne5 31. Nc6 Qc7 32. Nxe5 Rxe5 33. b4 a5 34. bxa5 b4 35. a6 Rb6 36. a7 Re8 37. Qd4+ Kg8 38. Na4 Rb7 39. Rfc1 Qa5 40. Nb2 c3 41. Nc4 Qa6 42. Ra1 1-0

[Event "Bolivarian Games Rapid"]
[Site "Lima"]
[Date "2024.12.02"]
[Round "5.5"]
[White "Giron Chavez, David Emanuel"]
[Black "Zambrana, Oswaldo"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2051"]
[BlackElo "2404"]
[PlyCount "112"]
[EventDate "2024.12.02"]
[EventType "team (rapid)"]
[EventRounds "5"]
[EventCountry "PER"]
[SourceTitle "CB50_2024"]
[SourceDate "2024.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.11.01"]
[SourceQuality "2"]
[WhiteTeam "Guatemala"]
[BlackTeam "Bolivia"]
[WhiteTeamCountry "GUA"]
[BlackTeamCountry "BOL"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. 0-0 Bd6 5. c4 0-0 6. b3 b6 7. Bb2 Bb7 8. d3 Nbd7 9. Nbd2 c5 10. e4 Qc7 11. Qe2 dxe4 12. Nxe4 Nxe4 13. dxe4 Ne5 14. Nxe5 Bxe5 15. Bxe5 Qxe5 16. Rad1 Rfd8 17. f4 Qc3 18. e5 Bxg2 19. Kxg2 Rd4 20. Rxd4 cxd4 21. Rd1 Rd8 22. Qd2 Qxd2+ 23. Rxd2 f5 24. Kf3 Kf7 25. Ke2 h6 26. h4 Kg6 27. Kf3 Kh5 28. b4 g6 29. a4 a5 30. b5 g5 31. hxg5 hxg5 32. Rh2+ Kg6 33. Ke2 d3+ 34. Ke3 Rd7 35. Rd2 Rc7 36. Kxd3 Kh5 37. Kc3 Kg4 38. fxg5 Kxg3 39. Rd6 Re7 40. g6 f4 41. g7 Rxg7 42. Rxe6 f3 43. Rf6 Rg4 44. Kd3 Rg5 45. Ke4 f2 46. e6 Rc5 47. e7 Rxc4+ 48. Kd5 Rc8 49. Rf8 Re8 50. Rxe8 f1Q 51. Rg8+ Kh4 52. e8Q Qf5+ 53. Kd6 Qc5+ 54. Kd7 Qd5+ 55. Ke7 Qe5+ 56. Kf8 Qf6+ 1-0

[Event "Bolivarian Games Rapid"]
[Site "Lima"]
[Date "2024.12.02"]
[Round "4.9"]
[White "Zambrana, Oswaldo"]
[Black "Avila Pavas, Santiago"]
[Result "0-1"]
[ECO "B72"]
[WhiteElo "2404"]
[BlackElo "2511"]
[PlyCount "77"]
[EventDate "2024.12.02"]
[EventType "team (rapid)"]
[EventRounds "5"]
[EventCountry "PER"]
[SourceTitle "CB50_2024"]
[SourceDate "2024.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.11.01"]
[SourceQuality "2"]
[WhiteTeam "Bolivia"]
[BlackTeam "Colombia"]
[WhiteTeamCountry "BOL"]
[BlackTeamCountry "COL"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Nc6 7. Qd2 h5 8. f3 Nxd4 9. Bxd4 Bh6 10. Be3 Bxe3 11. Qxe3 Be6 12. 0-0-0 Qa5 13. Kb1 Rc8 14. a3 a6 15. Ne2 0-0 16. Nd4 Kg7 17. h3 h4 18. f4 Bc4 19. Bxc4 Rxc4 20. Nb3 Qb5 21. e5 Nd5 22. Qf3 Nxf4 23. exd6 e5 24. Rhe1 Rd8 25. Re4 Rxe4 26. Qxe4 b6 27. a4 Qe2 28. Qxe2 Nxe2 29. Rd2 Ng3 30. a5 bxa5 31. Nc5 Kf8 32. d7 Ke7 33. Rd5 f6 34. Kc1 Ne2+ 35. Kd1 Nf4 36. Rd2 Ne6 37. Nxa6 Rxd7 38. Rxd7+ Kxd7 39. b4 0-1

[Event "Bolivarian Games Rapid"]
[Site "Lima"]
[Date "2024.12.02"]
[Round "3.1"]
[White "Zambrana, Oswaldo"]
[Black "Cori, Jorge Moise"]
[Result "0-1"]
[ECO "C06"]
[WhiteElo "2404"]
[BlackElo "2595"]
[PlyCount "72"]
[EventDate "2024.12.02"]
[EventType "team (rapid)"]
[EventRounds "5"]
[EventCountry "PER"]
[SourceTitle "CB50_2024"]
[SourceDate "2024.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.11.01"]
[SourceQuality "2"]
[WhiteTeam "Bolivia"]
[BlackTeam "Peru"]
[WhiteTeamCountry "BOL"]
[BlackTeamCountry "PER"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. c3 c5 6. Bd3 b6 7. Qg4 Ba6 8. Bxa6 Nxa6 9. a3 cxd4 10. cxd4 Qc7 11. Ne2 Qc2 12. 0-0 h5 13. Qg3 Rc8 14. Re1 Qf5 15. h3 h4 16. Qb3 Nab8 17. Nf1 Nc6 18. Bd2 Be7 19. Rac1 0-0 20. Ne3 Qe4 21. Ng4 Nxd4 22. Nxd4 Qxd4 23. Be3 Qe4 24. f3 Qf5 25. Qa4 Rxc1 26. Rxc1 Nxe5 27. Qxa7 Bg5 28. Qxb6 Nc4 29. Rxc4 dxc4 30. Qd4 Rd8 31. Qxc4 Qb1+ 32. Kh2 Rd1 33. Qc8+ Kh7 34. Nf2 Bxe3 35. Nxd1 Qxd1 36. Qc4 Qg1# 0-1

[Event "Iberoamerican-ch 10th"]
[Site "Linares"]
[Date "2024.10.01"]
[Round "9"]
[White "Sos Andreu, Eric"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2359"]
[BlackElo "2405"]
[PlyCount "129"]
[EventDate "2024.09.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 h6 4. g3 Nf6 5. Bg2 Bd6 6. 0-0 0-0 7. b3 b6 8. Nc3 Bb7 9. Qc2 Nbd7 10. cxd5 exd5 11. Nh4 Re8 12. Nf5 a6 13. Nxd6 cxd6 14. Qf5 Rc8 15. Bd2 Ne4 16. Nxe4 dxe4 17. Rac1 Nf6 18. Bh3 Nd5 19. e3 g6 20. Qd7 Qxd7 21. Bxd7 Rxc1 22. Rxc1 Rd8 23. Bh3 h5 24. Bf1 Kf8 25. Bc4 Ke7 26. h4 Rc8 27. a4 a5 28. Kf1 Nb4 29. Ke2 d5 30. Bb5 Rxc1 31. Bxc1 Ba6 32. Bxa6 Nxa6 33. f3 Ke6 34. Ba3 Nc7 35. Kf2 Ne8 36. b4 axb4 37. Bxb4 Nf6 38. Ba3 exf3 39. Kxf3 Ne4 40. Bb4 Kf5 41. a5 bxa5 42. Bxa5 g5 43. Bc7 f6 44. Bb8 Nc3 45. hxg5 fxg5 46. Bc7 g4+ 47. Kf2 Ke4 48. Bf4 Kd3 49. Ke1 Ne4 50. Kd1 Nxg3 51. Bxg3 Kxe3 52. Ke1 Kf3 53. Bh4 g3 54. Kf1 Kg4 55. Bd8 h4 56. Ba5 h3 57. Be1 Kf4 58. Kg1 Kf3 59. Kh1 g2+ 60. Kg1 Ke2 61. Bg3 Ke3 62. Be5 Kf3 63. Bd6 Ke3 64. Be5 Kf3 65. Bd6 1/2-1/2

[Event "Iberoamerican-ch 10th"]
[Site "Linares"]
[Date "2024.09.30"]
[Round "8"]
[White "Zambrana, Oswaldo"]
[Black "Ladron de Guevara Pinto, Paolo"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "2405"]
[BlackElo "2371"]
[PlyCount "116"]
[EventDate "2024.09.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 0-0 6. Re1 d6 7. a4 h6 8. c3 a5 9. Nbd2 Be6 10. Bxe6 fxe6 11. Qb3 Qd7 12. Nf1 b6 13. Qb5 Na7 14. Qb3 Nc6 15. Ng3 Rf7 16. h3 Raf8 17. Be3 d5 18. Qb5 Bd6 19. Rab1 d4 20. Bd2 Bc5 21. Re2 Ne8 22. cxd4 Nd6 23. Qxc6 Qxc6 24. Nxe5 Qxa4 25. dxc5 Nb5 26. Nxf7 Rxf7 27. cxb6 cxb6 28. Be3 Nd4 29. Rd2 Qb4 30. Rc1 b5 31. Rc8+ Kh7 32. h4 a4 33. h5 e5 34. Re8 Re7 35. Rc8 Qa5 36. Rc5 Nb3 37. Rdc2 Nxc5 38. Rxc5 Qa6 39. Nf5 Rd7 40. Bd2 a3 41. bxa3 Qxa3 42. Rxb5 Qxd3 43. Rb2 Qa3 44. Rb8 Qa7 45. Rf8 Rxd2 46. Nh4 Qa4 47. Kh2 Qd1 48. f3 Rd8 49. Rf5 Qc1 50. Kh3 Rd1 51. Kg4 Rh1 52. g3 Qf1 53. Rxe5 Qh3+ 54. Kf4 Rg1 55. Nf5 Qxh5 56. Ne7 Qf7+ 57. Nf5 Qc7 58. Ne7 Rf1 0-1

[Event "Iberoamerican-ch 10th"]
[Site "Linares"]
[Date "2024.09.29"]
[Round "7"]
[White "Ticona Rocabado, Licael Roderick"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "E14"]
[WhiteElo "2321"]
[BlackElo "2405"]
[PlyCount "126"]
[EventDate "2024.09.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 Be7 5. Nbd2 0-0 6. b3 c5 7. Bd3 cxd4 8. exd4 b6 9. 0-0 Bb7 10. Bb2 Nc6 11. Rc1 dxc4 12. bxc4 Qd6 13. Qe2 Rfe8 14. Rfd1 Rac8 15. Ne4 Qf4 16. d5 exd5 17. cxd5 Nxd5 18. Bc4 Ncb4 19. Be5 Qh6 20. a3 b5 21. Bxd5 Nxd5 22. Rxc8 Rxc8 23. Qxb5 Rc1 24. Qf1 Rxd1 25. Qxd1 Bxa3 26. Ned2 Qc6 27. Nf1 Bf8 28. Nd4 Qg6 29. Qb3 Nb4 30. Ne3 Qd3 31. Qb2 Be4 32. Nb3 Qb1+ 33. Qxb1 Bxb1 34. Na5 Bd3 35. Bd4 a6 36. Bb6 Bb5 37. h4 f6 38. g4 Kf7 39. Kg2 Ke6 40. f4 Nd5 41. f5+ Ke5 42. Nxd5 Kxd5 43. Kf3 Ba4 44. Bd8 Bd1+ 45. Kg3 Bd6+ 46. Kh3 h5 47. gxh5 Bxh5 48. Nb7 Be5 49. Be7 Ke4 50. Kg2 Kxf5 51. Bb4 Be2 52. Nd6+ Kg4 53. Ne8 g6 54. Be7 Bf3+ 55. Kf2 Bd4+ 56. Kf1 f5 57. Bd8 Bc6 58. Nd6 Kf3 59. h5 Bc5 60. h6 Bxd6 61. Bf6 Bc5 62. Ke1 Bf2+ 63. Kd1 Ba4+ 0-1

[Event "Iberoamerican-ch 10th"]
[Site "Linares"]
[Date "2024.09.28"]
[Round "6"]
[White "Zambrana, Oswaldo"]
[Black "Vallejo Pons, Francisco"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2405"]
[BlackElo "2657"]
[PlyCount "82"]
[EventDate "2024.09.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Rg1 b5 7. g4 Bb7 8. Bg2 e6 9. Qe2 Nfd7 10. Be3 Nc6 11. 0-0-0 Be7 12. a3 Nce5 13. f4 Nc4 14. Bf2 0-0 15. h4 Rc8 16. Rd3 Re8 17. g5 e5 18. fxe5 Ndxe5 19. Rg3 g6 20. Kb1 Bf8 21. Qd1 Bg7 22. Nb3 a5 23. Bd4 Bc6 24. Bf1 b4 25. axb4 axb4 26. Bxc4 bxc3 27. Rxc3 Bxe4 28. Bb5 Rf8 29. Re1 Rb8 30. Rxe4 Rxb5 31. Qf1 Qa8 32. Re1 Qa4 33. Rc7 Rxb3 34. Bxe5 Bxe5 35. cxb3 Qxb3 36. Qf2 Ra8 37. Rxe5 dxe5 38. Qc2 Qa2+ 39. Kc1 Qa1+ 40. Qb1 Qa5 41. Rc3 Qb4 0-1

[Event "Iberoamerican-ch 10th"]
[Site "Linares"]
[Date "2024.09.27"]
[Round "5"]
[White "Domingo Nunez, Alejandro"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2328"]
[BlackElo "2405"]
[PlyCount "80"]
[EventDate "2024.09.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Nf3 Nc6 6. Bc4 Nb6 7. Bb3 e6 8. cxd4 d6 9. Qe2 Be7 10. 0-0 0-0 11. Nc3 Nb4 12. a3 N4d5 13. Bc2 Nxc3 14. bxc3 g6 15. Bh6 Re8 16. Qe4 Bd7 17. exd6 Bxd6 18. Ng5 Bc6 19. Qh4 Nd5 20. Rae1 b5 21. f4 Rc8 22. Bb3 Be7 23. Qh3 Bf6 24. Ne4 Bg7 25. Bg5 Nf6 26. Nc5 Bd5 27. Bc2 Qd6 28. Re3 Nd7 29. Nxd7 Qxd7 30. Rd1 Rc7 31. Qh4 Rec8 32. Rh3 h5 33. Qe1 Qc6 34. Rd2 Qb6 35. Rdd3 a5 36. Kh1 b4 37. axb4 axb4 38. Qb1 Qb7 39. Rd2 bxc3 40. Qxb7 cxd2 0-1

[Event "Iberoamerican-ch 10th"]
[Site "Linares"]
[Date "2024.09.27"]
[Round "4"]
[White "Zambrana, Oswaldo"]
[Black "Escalona Landi, Samid Eduardo"]
[Result "1/2-1/2"]
[ECO "B67"]
[WhiteElo "2405"]
[BlackElo "2305"]
[PlyCount "107"]
[EventDate "2024.09.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 b5 10. Bxf6 gxf6 11. Kb1 Qb6 12. Nxc6 Bxc6 13. f5 b4 14. Ne2 e5 15. Ng3 h5 16. h4 Qc5 17. Bd3 Bh6 18. Qe2 Qe3 19. Rh3 Qxe2 20. Bxe2 Ke7 21. Bf3 Rac8 22. Nxh5 Ba4 23. b3 Bb5 24. g4 Rc3 25. Nxf6 Kxf6 26. g5+ Ke7 27. f6+ Kd8 28. gxh6 Rxh6 29. h5 Kc7 30. Rdh1 Bd7 31. Rg3 d5 32. Rh4 dxe4 33. Rxe4 Bc6 34. Rc4 Rxc4 35. bxc4 e4 36. Be2 Rxf6 37. c5 Bb5 38. Bxb5 axb5 39. Kc1 Kc6 40. Kd2 Rf2+ 41. Ke3 Rxc2 42. Kxe4 Rxa2 43. Rh3 Ra3 44. Rh1 Kxc5 45. h6 Ra8 46. h7 Rh8 47. Kd3 b3 48. Kc3 Kd5 49. Kxb3 f5 50. Rh4 Ke5 51. Kc3 Kf6 52. Kd4 b4 53. Ke3 b3 54. Kf4 1/2-1/2

[Event "Iberoamerican-ch 10th"]
[Site "Linares"]
[Date "2024.09.26"]
[Round "3"]
[White "Donate Moreno, Silvia"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2126"]
[BlackElo "2405"]
[PlyCount "130"]
[EventDate "2024.09.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nb3 Nf6 6. Nc3 e6 7. Be3 Qc7 8. Qe2 a6 9. 0-0-0 Bb4 10. f3 0-0 11. g4 Bxc3 12. bxc3 d5 13. g5 Nh5 14. exd5 exd5 15. Bc5 Nf4 16. Qe3 d4 17. cxd4 Rd8 18. d5 Bf5 19. d6 Qc8 20. Qxf4 Na5 21. Nd4 Bxc2 22. Nxc2 Qxc5 23. Bd3 g6 24. Qb4 Qd5 25. Kb1 Qxg5 26. f4 Qh5 27. Ka1 Nc6 28. Qxb7 Na5 29. Qe4 Qc5 30. Qe5 Qb6 31. f5 Rxd6 32. fxg6 hxg6 33. h4 Rad8 34. Qc3 Rc6 35. Qb2 Qxb2+ 36. Kxb2 Rb8+ 37. Ka1 Nc4 38. Bxc4 Rxc4 39. Ne3 Rf4 40. Rh2 Kg7 41. Nd5 Rf3 42. h5 Rh8 43. Nc7 Rxh5 44. Rxh5 gxh5 45. Nxa6 h4 46. Nc5 h3 47. Ne4 f5 48. Rg1+ Kh6 49. Ng5 Re3 50. a4 h2 51. Nf7+ Kh5 52. Rh1 Re2 53. a5 Rg2 54. Rxh2+ Rxh2 55. a6 Rg2 56. Nd6 f4 57. a7 Rg8 58. Kb2 Ra8 59. Kc3 Rxa7 60. Kd3 Ra2 61. Nf5 Kg4 62. Nd4 Kg3 63. Nf5+ Kf3 64. Nd4+ Kf2 65. Ke4 Ra4 0-1

[Event "Iberoamerican-ch 10th"]
[Site "Linares"]
[Date "2024.09.25"]
[Round "1"]
[White "Suarez Gomez, Paula"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2111"]
[BlackElo "2405"]
[PlyCount "64"]
[EventDate "2024.09.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c4 b4 12. Nc2 0-0 13. Qf3 Bg5 14. g3 f5 15. h4 fxe4 16. Qxe4 Bf5 17. Qe2 Nd4 18. Nxd4 exd4 19. Qh5 Bh6 20. Be2 d3 21. Bf3 d2+ 22. Kf1 Ra7 23. Kg2 Raf7 24. Nf4 Bxf4 25. gxf4 Be6 26. Bd5 Qd7 27. Rad1 Bxd5+ 28. cxd5 Rxf4 29. Rxd2 Rg4+ 30. Kf1 Qb5+ 31. Ke1 Qc4 32. Kd1 Qf4 0-1

[Event "Iberoamerican-ch 10th"]
[Site "Linares"]
[Date "2024.09.25"]
[Round "2"]
[White "Zambrana, Oswaldo"]
[Black "Mingarro Carceller, Sergi"]
[Result "0-1"]
[ECO "B94"]
[WhiteElo "2405"]
[BlackElo "2273"]
[PlyCount "84"]
[EventDate "2024.09.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Qe2 h6 8. Bh4 g6 9. f4 e5 10. fxe5 dxe5 11. 0-0-0 Qc7 12. Nb3 b5 13. Nd5 Nxd5 14. exd5 Bd6 15. Qd2 f5 16. g4 f4 17. Bd3 Kf7 18. g5 h5 19. Be4 a5 20. Qd3 a4 21. Nd2 Nc5 22. Qc3 b4 23. Qf3 Bg4 24. Qg2 b3 25. Kb1 bxa2+ 26. Kxa2 Bxd1 27. Rxd1 Rhb8 28. Qe2 a3 29. b3 Na4 30. Qd3 Nc3+ 31. Ka1 Nxd1 32. Bxg6+ Kg7 33. Ne4 Ne3 34. c4 Qb6 35. Nxd6 Qxd6 36. Be4 a2 37. Qc3 Rc8 38. Be1 Ra3 39. Qb2 Nxc4 40. bxc4 Rxc4 41. Qb7+ Rc7 42. Bb4 Qd7 0-1

[Event "Olympiad-45"]
[Site "Budapest"]
[Date "2024.09.22"]
[Round "11.1"]
[White "Bai, Adelard"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "2378"]
[BlackElo "2405"]
[PlyCount "60"]
[EventDate "2024.09.11"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Taiwan"]
[BlackTeam "Bolivia"]
[WhiteTeamCountry "TPE"]
[BlackTeamCountry "BOL"]

1. d4 d5 2. c4 e6 3. Nc3 h6 4. cxd5 exd5 5. Bf4 Nf6 6. e3 Bd6 7. Bxd6 Qxd6 8. Bd3 0-0 9. h3 Nbd7 10. Nf3 c6 11. 0-0 Qe7 12. Qc2 b6 13. e4 dxe4 14. Nxe4 Bb7 15. Rfe1 Nxe4 16. Bxe4 Qd6 17. Ne5 Nf6 18. Bxc6 Rac8 19. Rac1 Rc7 20. b4 a6 21. a4 Qxb4 22. Qd1 Bxc6 23. Rxc6 Rfc8 24. Rxc7 Rxc7 25. Ng4 Nxg4 26. hxg4 Rc8 27. d5 Rd8 28. Re3 g6 29. g3 Qd6 30. Qb3 b5 1/2-1/2

[Event "Olympiad-45"]
[Site "Budapest"]
[Date "2024.09.21"]
[Round "10.1"]
[White "Zambrana, Oswaldo"]
[Black "Amin, Bassem"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "2405"]
[BlackElo "2636"]
[PlyCount "66"]
[EventDate "2024.09.11"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Bolivia"]
[BlackTeam "Egypt"]
[WhiteTeamCountry "BOL"]
[BlackTeamCountry "EGY"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. 0-0 d6 6. c3 g6 7. Re1 Bg7 8. d4 0-0 9. dxe5 dxe5 10. Qxd8 Rxd8 11. a4 b6 12. Na3 Bb7 13. Bb3 Nxe4 14. Rxe4 Na5 15. Bxf7+ Kxf7 16. Re1 Nb3 17. Rb1 e4 18. Nd4 Nxd4 19. cxd4 Rxd4 20. b3 Rd7 21. Bf4 g5 22. Bg3 Rad8 23. h4 c5 24. a5 Bc3 25. Rec1 Bd2 26. Rc2 e3 27. fxe3 Bxe3+ 28. Kh2 Be4 29. Rf1+ Kg8 30. Ra2 Rd2 31. Rxd2 Rxd2 32. Re1 Rxg2+ 33. Kh3 Bf4 0-1

[Event "Olympiad-45"]
[Site "Budapest"]
[Date "2024.09.20"]
[Round "9.1"]
[White "Zambrana, Oswaldo"]
[Black "Christie, Joshua"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2405"]
[BlackElo "2271"]
[PlyCount "83"]
[EventDate "2024.09.11"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Bolivia"]
[BlackTeam "Jamaica"]
[WhiteTeamCountry "BOL"]
[BlackTeamCountry "JAM"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 0-0 6. Re1 d6 7. a4 h6 8. h3 Re8 9. a5 a6 10. c3 Be6 11. Nbd2 Bf8 12. Qb3 Rb8 13. Bxe6 fxe6 14. Nc4 g5 15. Ne3 Qd7 16. Qc2 Bg7 17. b4 Qf7 18. Rb1 Ra8 19. Nc4 g4 20. hxg4 Nxg4 21. Ne3 Nf6 22. Nf1 Nh5 23. Re3 Rf8 24. Nh4 Nf4 25. Rg3 Qh5 26. Nf3 Rf6 27. N1h2 Qf7 28. Be3 Rg6 29. Nh4 Rxg3 30. fxg3 Nh5 31. g4 Nf4 32. g3 Nh3+ 33. Kg2 Ng5 34. Qd2 Bf6 35. N2f3 Nxf3 36. Nxf3 Qg6 37. Rh1 Qxg4 38. Rxh6 Qg7 39. Qd1 Kf7 40. Qh1 Rh8 41. Ng5+ Ke7 42. Nh7 1-0

[Event "Olympiad-45"]
[Site "Budapest"]
[Date "2024.09.19"]
[Round "8.1"]
[White "Henriquez Villagra, Cristobal"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2604"]
[BlackElo "2405"]
[PlyCount "88"]
[EventDate "2024.09.11"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Chile"]
[BlackTeam "Bolivia"]
[WhiteTeamCountry "CHI"]
[BlackTeamCountry "BOL"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Qc7 6. a4 e5 7. 0-0 Nf6 8. a5 h6 9. Qe1 Bg4 10. Nfd2 Nh5 11. Nc4 Be6 12. Qc3 f6 13. Be3 g5 14. Qa3 Qe7 15. Nbd2 Nf4 16. Kh1 h5 17. Nb3 Bxc4 18. dxc4 Ne6 19. Rad1 Rd8 20. Rxd8+ Kxd8 21. Nc1 g4 22. Nd3 Kc8 23. Qa4 a6 24. b4 cxb4 25. c5 Bh6 26. Qxb4 Bxe3 27. fxe3 h4 28. Kg1 h3 29. g3 Rd8 30. Qb6 Ng5 31. Qa7 Nf3+ 32. Kh1 Nd2 33. Ra1 Qh7 34. Ra4 Rd4 35. Qa8+ Kc7 36. Rxd4 exd4 37. Qe8 dxe3 38. Kg1 Qxe4 39. Qxe4 Nxe4 40. Kf1 f5 41. Nf4 Kd7 42. Nh5 Ke6 43. Ke2 Ke5 44. Kxe3 Nxg3 0-1

[Event "Olympiad-45"]
[Site "Budapest"]
[Date "2024.09.18"]
[Round "7.1"]
[White "Espinoza Solano, Jose Nahum"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "2156"]
[BlackElo "2405"]
[PlyCount "99"]
[EventDate "2024.09.11"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Nicaragua"]
[BlackTeam "Bolivia"]
[WhiteTeamCountry "NCA"]
[BlackTeamCountry "BOL"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. exf5 Bxf5 12. c3 Bg7 13. Nc2 Be6 14. Nce3 0-0 15. g3 f5 16. Bg2 Kh8 17. 0-0 Rb8 18. f4 e4 19. Qd2 Ne7 20. Rfd1 Nxd5 21. Nxd5 a5 22. a3 Qc8 23. Kh1 Qc5 24. Rac1 Rbe8 25. Bf1 Bg8 26. Ne3 Bb3 27. Re1 Rb8 28. Bh3 Be6 29. Rcd1 d5 30. Nc2 b4 31. axb4 axb4 32. cxb4 Qb6 33. Nd4 Qxd4 34. Qxd4 Bxd4 35. Rxd4 Rfc8 36. Bf1 Rc2 37. Re2 Rbc8 38. b5 Rxe2 39. Bxe2 Rc2 40. b4 Rxe2 41. b6 Bc8 42. Rxd5 Rc2 43. Rd8+ Kg7 44. b7 Bxb7 45. Rd7+ Kf6 46. Rxb7 e3 47. Rb6+ Kf7 48. Rb7+ Kf6 49. Rb6+ Kf7 50. Rb7+ 1/2-1/2

[Event "Olympiad-45"]
[Site "Budapest"]
[Date "2024.09.16"]
[Round "6.27"]
[White "Zambrana, Oswaldo"]
[Black "Supi, Luis Paulo"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2405"]
[BlackElo "2570"]
[PlyCount "164"]
[EventDate "2024.09.11"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Bolivia"]
[BlackTeam "Brazil"]
[WhiteTeamCountry "BOL"]
[BlackTeamCountry "BRA"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. 0-0 d6 6. c3 a6 7. a4 h6 8. Na3 0-0 9. Nc2 Ba7 10. Be3 Bb8 11. a5 Ne7 12. Re1 Ng6 13. Bb3 Re8 14. Qb1 Nh5 15. Na3 Nhf4 16. Bd1 d5 17. exd5 Qxd5 18. Bxf4 Nxf4 19. d4 e4 20. Bc2 Bf5 21. Nh4 Bh7 22. f3 f5 23. g3 Nh3+ 24. Kf1 Kh8 25. Qa2 Qd7 26. Nc4 Ba7 27. Qa4 c6 28. Kg2 g5 29. Kxh3 gxh4 30. f4 Qg7 31. Bd1 hxg3 32. hxg3 h5 33. Rg1 Re6 34. Be2 Rg8 35. Ne5 Bb8 36. Qb3 Rf6 37. c4 Bxe5 38. dxe5 Rg6 39. Qc3 h4 40. e6 Qxc3 41. bxc3 hxg3 42. e7 Rh6+ 43. Kg2 Re6 44. Rad1 Rxe7 45. c5 Bg6 46. Rh1+ Rh7 47. Rxh7+ Bxh7 48. Rd7 Rg7 49. Rd8+ Rg8 50. Rd7 Rg7 51. Rd8+ Bg8 52. Rf8 Rf7 53. Rxf7 Bxf7 54. Kxg3 Kg7 55. Kf2 Kf6 56. Ke3 Bb3 57. Kd4 Ke6 58. Bh5 Kf6 59. Be2 Ke6 60. Bh5 Bc2 61. Be2 Bd3 62. Bd1 Bf1 63. Bb3+ Kf6 64. Ke3 Bg2 65. Bc4 Bh3 66. Ba2 Bg4 67. Bb3 Bf3 68. Ba2 Bg4 69. Bb3 Bh5 70. Bc4 Bg6 71. Bb3 Bf7 72. Bd1 Bg6 73. Bb3 Bf7 74. Bd1 Ba2 75. Kd4 Bb1 76. Ke3 Ba2 77. Kd4 Bf7 78. Ke3 Ba2 79. Kd4 Ke6 80. Be2 Bb3 81. Bh5 Ba4 82. Be2 Bb3 1/2-1/2

[Event "Olympiad-45"]
[Site "Budapest"]
[Date "2024.09.15"]
[Round "5.47"]
[White "Mesfin, Leykun"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "B83"]
[WhiteElo "2118"]
[BlackElo "2405"]
[PlyCount "138"]
[EventDate "2024.09.11"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Ethiopia"]
[BlackTeam "Bolivia"]
[WhiteTeamCountry "ETH"]
[BlackTeamCountry "BOL"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Bd3 e5 7. 0-0 Be7 8. Nc3 d6 9. h3 0-0 10. Kh1 Nd7 11. Be3 Bg5 12. Qh5 Bxe3 13. fxe3 Nf6 14. Qh4 Be6 15. Rf3 Nd7 16. Qf2 Qb6 17. b3 a5 18. Ne2 a4 19. Rf1 g6 20. Qh4 Qd8 21. Qh6 Qe7 22. Ng3 f6 23. Be2 axb3 24. axb3 Ra2 25. Bd1 Qg7 26. Qh4 Kh8 27. R3f2 Qe7 28. Bg4 Kg7 29. Bxe6 Qxe6 30. Rd2 Rfa8 31. Rfd1 Ra1 32. Qg4 Qxg4 33. hxg4 Nc5 34. Rxd6 Rxd1+ 35. Rxd1 Ra2 36. Rc1 Kh6 37. Kh2 Kg5 38. Kh3 Rb2 39. Nf1 Nxe4 40. Nh2 f5 41. Nf3+ Kf6 42. gxf5 gxf5 43. Ne1 Ra2 44. Nd3 Ra8 45. g4 fxg4+ 46. Kxg4 Nd2 47. Rd1 Rg8+ 48. Kh3 Ne4 49. Rf1+ Ke6 50. Kh2 Nc3 51. Rf3 Nd5 52. Rh3 Nf6 53. Nf2 Rd8 54. Rf3 Ra8 55. Nd3 Ra2 56. Ne1 e4 57. Rg3 Ra1 58. Ng2 Rc1 59. Nf4+ Kf5 60. Rg2 Ng4+ 61. Kg3 Nxe3 62. Rf2 Ke5 63. Re2 Nf5+ 64. Kg4 Rg1+ 65. Ng2 Rxg2+ 66. Rxg2 Ne3+ 67. Kg3 Nxg2 68. Kxg2 Kd4 69. Kf2 Kc3 0-1

[Event "Olympiad-45"]
[Site "Budapest"]
[Date "2024.09.14"]
[Round "4.24"]
[White "Zambrana, Oswaldo"]
[Black "Peralta, Fernando"]
[Result "0-1"]
[ECO "C07"]
[WhiteElo "2405"]
[BlackElo "2558"]
[PlyCount "54"]
[EventDate "2024.09.11"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Bolivia"]
[BlackTeam "Argentina"]
[WhiteTeamCountry "BOL"]
[BlackTeamCountry "ARG"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 cxd4 5. exd5 Qxd5 6. Bc4 Qd8 7. 0-0 Nc6 8. Nb3 a6 9. Nbxd4 Nxd4 10. Nxd4 Qc7 11. Qe2 Bd6 12. Kh1 Ne7 13. Bb3 0-0 14. Nf3 b5 15. Ng5 Bb7 16. Qd3 Ng6 17. h4 Bf4 18. Rg1 Rad8 19. Qh3 Bxc1 20. Raxc1 Rd4 21. h5 Rh4 22. hxg6 Qf4 23. gxf7+ Rxf7 24. Bxe6 Qxg5 25. f3 Rxh3+ 26. Bxh3 Rxf3 27. Be6+ Rf7 0-1

[Event "Olympiad-45"]
[Site "Budapest"]
[Date "2024.09.12"]
[Round "2.30"]
[White "Zambrana, Oswaldo"]
[Black "Bjerre, Jonas Buhl"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2405"]
[BlackElo "2648"]
[PlyCount "86"]
[EventDate "2024.09.11"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]
[WhiteTeam "Bolivia"]
[BlackTeam "Denmark"]
[WhiteTeamCountry "BOL"]
[BlackTeamCountry "DEN"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 d6 6. c3 a6 7. a4 Ba7 8. Be3 Bxe3 9. fxe3 Ne7 10. Nbd2 Ng6 11. a5 0-0 12. Qe1 c6 13. Ba2 d5 14. exd5 cxd5 15. e4 Be6 16. exd5 Bxd5 17. Bc4 Re8 18. Qd1 b5 19. Bxd5 Qxd5 20. Ne4 Nxe4 21. dxe4 Qxe4 22. Qb3 Ra7 23. Rae1 Qg4 24. Kh1 Rd7 25. Nd4 Nf4 26. Qc2 f6 27. Re3 Red8 28. Rg3 Qh5 29. h3 Qf7 30. Nf5 Qc4 31. Rf2 Nd3 32. Re2 g6 33. Rg4 Nf4 34. Rf2 Kh8 35. Nh6 Qe6 36. Rg3 f5 37. Kh2 Nd3 38. Rf1 e4 39. Qd2 f4 40. Rg5 Qe7 41. h4 Rf8 42. Qe2 Qg7 43. Ng4 h6 0-1

[Event "South America-ch 2nd"]
[Site "Coliseo Miguel Grau"]
[Date "2024.08.03"]
[Round "9"]
[White "Zambrana, Oswaldo"]
[Black "Reyes Zavaleta, Fabian Ricardo"]
[Result "1-0"]
[ECO "B96"]
[WhiteElo "2408"]
[BlackElo "2139"]
[PlyCount "59"]
[EventDate "2024.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Be7 9. Qe2 b5 10. a3 Bb7 11. 0-0-0 Nbd7 12. Qe1 Rc8 13. Bd3 g5 14. fxg5 Ng4 15. Kb1 hxg5 16. Bg3 Qb6 17. h3 Nge5 18. Bf2 Qc7 19. Rf1 Nc4 20. Bxc4 Qxc4 21. Nf3 Ne5 22. Bd4 Qc7 23. Qg3 f6 24. h4 Nxf3 25. Qxf3 e5 26. Bf2 Qd7 27. hxg5 fxg5 28. Rh1 Rxh1 29. Rxh1 Qe6 30. Nd5 1-0

[Event "South America-ch 2nd"]
[Site "Coliseo Miguel Grau"]
[Date "2024.08.02"]
[Round "8"]
[White "Vivas Zamora, Fabian Ernesto"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "2386"]
[BlackElo "2408"]
[PlyCount "89"]
[EventDate "2024.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nab1 Be7 10. Bxf6 Bxf6 11. a4 b4 12. Nd5 0-0 13. Bc4 Bg5 14. 0-0 Kh8 15. c3 Rb8 16. cxb4 Nxb4 17. Nxb4 Rxb4 18. b3 a5 19. Nc3 Be6 20. Nd5 Rb8 21. Qd3 Qc8 22. Rfb1 Qc5 23. Rb2 f5 24. Rd1 fxe4 25. Qxe4 Bf5 26. Qe2 Bg6 27. h3 Rbe8 28. Bb5 Rc8 29. Kh1 Bh4 30. Qg4 Bxf2 31. Ne7 Rcd8 32. Nxg6+ hxg6 33. Bd3 Qe3 34. Bxg6 Qh6 35. Rc2 Bd4 36. Rc4 Rf6 37. Rc8 Rdf8 38. Bd3 g6 39. Rxf8+ Qxf8 40. Rc1 Bc5 41. Kh2 Qh6 42. Rf1 Rxf1 43. Bxf1 Qf4+ 44. Qxf4 exf4 45. h4 1/2-1/2

[Event "South America-ch 2nd"]
[Site "Coliseo Miguel Grau"]
[Date "2024.08.02"]
[Round "7"]
[White "Zambrana, Oswaldo"]
[Black "Terry, Renato"]
[Result "1/2-1/2"]
[ECO "C06"]
[WhiteElo "2408"]
[BlackElo "2526"]
[PlyCount "103"]
[EventDate "2024.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Ngf3 Nf6 5. e5 Nfd7 6. Bd3 c5 7. c3 Nc6 8. 0-0 a5 9. a4 cxd4 10. cxd4 Nb4 11. Bb1 b6 12. Re1 Ba6 13. Nf1 Rc8 14. Ra3 Nb8 15. h4 h6 16. Ng3 g6 17. h5 g5 18. Nh2 Rc7 19. Rc3 Qc8 20. Ree3 N4c6 21. Ng4 Bb4 22. Nf6+ Kd8 23. Rf3 Nd7 24. Ng4 Bxc3 25. bxc3 Nxd4 26. Rxf7 Rxc3 27. Be3 Qc4 28. Kh2 Ne2 29. Ne4 Rxe3 30. fxe3 Qc1 31. Nef2 Qxd1 32. Nxd1 d4 33. Ba2 Nc5 34. exd4 Nxd4 35. Nc3 Bc8 36. Bb1 Bd7 37. Bg6 Nxa4 38. Nxa4 Bxa4 39. Rb7 Nc6 40. Rxb6 Kc7 41. Rb1 Kc8 42. Kg3 Kc7 43. Be4 Nb4 44. Ra1 Bc6 45. Bg6 a4 46. Nxh6 Rxh6 47. Kg4 Bxg2 48. Kxg5 Rh8 49. Rxa4 Nc6 50. Kf6 Rf8+ 51. Kg7 Rb8 52. h6 1/2-1/2

[Event "South America-ch 2nd"]
[Site "Coliseo Miguel Grau"]
[Date "2024.08.01"]
[Round "6"]
[White "Castellanos Villela, Alejandro"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "B85"]
[WhiteElo "2203"]
[BlackElo "2408"]
[PlyCount "28"]
[EventDate "2024.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. d4 cxd4 5. Nxd4 Qc7 6. Be2 Nf6 7. 0-0 a6 8. Be3 Be7 9. f4 d6 10. Qe1 0-0 11. Qg3 Bd7 12. Kh1 Kh8 13. Rae1 Rac8 14. Bd3 Nb4 1/2-1/2

[Event "South America-ch 2nd"]
[Site "Coliseo Miguel Grau"]
[Date "2024.07.31"]
[Round "4"]
[White "Zambrana, Oswaldo"]
[Black "Caceres Sandoval, Eduardo"]
[Result "1-0"]
[ECO "B94"]
[WhiteElo "2408"]
[BlackElo "1986"]
[PlyCount "87"]
[EventDate "2024.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Qe2 h6 8. Bh4 g6 9. f4 e5 10. fxe5 dxe5 11. 0-0-0 Qc7 12. Nb3 b5 13. Nd5 Nxd5 14. exd5 Bd6 15. Qd2 g5 16. Bf2 f5 17. g4 Nf6 18. h4 Ne4 19. Qe1 Rf8 20. Bg1 Nf6 21. hxg5 hxg5 22. gxf5 Bxf5 23. Bd3 Bxd3 24. Rxd3 Qc4 25. Be3 Nxd5 26. Bxg5 Nb4 27. Rd2 Rc8 28. Qd1 Qe4 29. Rhh2 Rc6 30. Kb1 Qf5 31. Rxd6 Qxg5 32. Rh1 Rxd6 33. Qxd6 Qe7 34. Qg6+ Qf7 35. Qe4 Qd5 36. Qg6+ Qf7 37. Qg4 Qc4 38. Qg2 Qd5 39. Qh2 Nc6 40. Qh5+ Qf7 41. Qh3 Qf5 42. Qg2 Qf3 43. Qg6+ Ke7 44. Rh7+ 1-0

[Event "South America-ch 2nd"]
[Site "Coliseo Miguel Grau"]
[Date "2024.07.31"]
[Round "5"]
[White "Zambrana, Oswaldo"]
[Black "Sanchez Negreiros, Jose Alberto"]
[Result "1-0"]
[ECO "C06"]
[WhiteElo "2408"]
[BlackElo "1972"]
[PlyCount "75"]
[EventDate "2024.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Ngf3 Nf6 5. e5 Nfd7 6. c3 c5 7. Bd3 Nc6 8. 0-0 a5 9. Qe2 a4 10. c4 dxc4 11. Nxc4 cxd4 12. Bf4 Nc5 13. Rac1 Nxd3 14. Qxd3 0-0 15. Rfd1 Nb4 16. Qb1 d3 17. a3 Nd5 18. Bg3 b6 19. Qxd3 Ba6 20. Qd2 Bxc4 21. Rxc4 b5 22. Rg4 Kh8 23. Bh4 Rb8 24. Bxe7 Qxe7 25. Ng5 Rfd8 26. Rd4 f6 27. Nxe6 Qxe6 28. Rxd5 Rf8 29. exf6 Qxf6 30. Qd4 Qg6 31. h3 h6 32. Rd6 Qh5 33. Rd3 Rb7 34. Re3 Rbf7 35. Re5 Rf5 36. Rxf5 Rxf5 37. g4 Rg5 38. Qe4 1-0

[Event "South America-ch 2nd"]
[Site "Coliseo Miguel Grau"]
[Date "2024.07.30"]
[Round "3"]
[White "Soriano Quispe, Ivan Excender"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2295"]
[BlackElo "2408"]
[PlyCount "46"]
[EventDate "2024.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. e4 d5 6. e5 Ne4 7. Bd3 c5 8. Nf3 cxd4 9. Nxd4 Nd7 10. Bf4 Qh4 11. g3 Qh5 12. 0-0 g5 13. cxd5 Nxc3 14. dxe6 gxf4 15. exd7 Bxd7 16. bxc3 Rac8 17. Bf5 Bxf5 18. Qxf5 Qxf5 19. Nxf5 Rxc3 20. Rab1 a5 21. gxf4 Rc4 22. Ne3 Rxf4 23. Nd5 Rd4 1/2-1/2

[Event "South America-ch 2nd"]
[Site "Coliseo Miguel Grau"]
[Date "2024.07.29"]
[Round "1"]
[White "Reyes Zavaleta, Diego Alexander"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "A61"]
[WhiteElo "1870"]
[BlackElo "2408"]
[PlyCount "79"]
[EventDate "2024.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bf4 Bg7 8. h3 0-0 9. e3 a6 10. a4 Qe7 11. Be2 Nbd7 12. 0-0 Nh5 13. Bh2 f5 14. Nd2 Nhf6 15. Nc4 Ne8 16. a5 Ne5 17. Nb6 Rb8 18. Ra3 g5 19. f4 Ng6 20. Nca4 gxf4 21. exf4 Nf6 22. Kh1 Bd7 23. Bd3 Ne4 24. Bxe4 fxe4 25. Nxd7 Qxd7 26. f5 Rxf5 27. Rxf5 Qxf5 28. Nxc5 Rf8 29. Bxd6 Rd8 30. Nxb7 Rd7 31. Rb3 Qf7 32. Qc1 e3 33. Rxe3 Rxb7 34. Qc8+ Bf8 35. Rf3 Qg7 36. Bxf8 Nxf8 37. Rxf8+ Qxf8 38. Qxb7 Qf1+ 39. Kh2 Qf4+ 40. Kh1 1/2-1/2

[Event "South America-ch 2nd"]
[Site "Coliseo Miguel Grau"]
[Date "2024.07.29"]
[Round "2"]
[White "Zambrana, Oswaldo"]
[Black "Colque Mendoza, Fabrizio Daniel"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2408"]
[BlackElo "1682"]
[PlyCount "117"]
[EventDate "2024.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 d6 6. c3 Be6 7. Bb5 Bb6 8. Nbd2 0-0 9. h3 Ne7 10. d4 Ng6 11. Re1 c6 12. Bf1 Qc7 13. dxe5 dxe5 14. Nc4 Rad8 15. Qc2 Bxc4 16. Bxc4 h6 17. a4 Qe7 18. a5 Bc7 19. Be3 b5 20. axb6 axb6 21. Ra7 Rd7 22. b4 Rfd8 23. Rxc7 Rxc7 24. Bxb6 Rcd7 25. Bxd8 Qxd8 26. Qa4 Qb6 27. Qa5 Qb8 28. Qa6 Qd6 29. g3 Ne8 30. Kg2 Kh7 31. Qa2 Qf6 32. Qa8 Nc7 33. Qc8 Qd6 34. Re2 Qe7 35. Rd2 Rxd2 36. Nxd2 Nf8 37. Nf3 f6 38. h4 h5 39. Nd2 g6 40. Nf1 Kg7 41. Ne3 Qd7 42. Qb7 Kh6 43. Kf1 Nd5 44. Qxd7 Nxe3+ 45. fxe3 Nxd7 46. Bf7 Nb6 47. Ke2 c5 48. bxc5 Na4 49. c6 Nxc3+ 50. Kd3 Nb5 51. Kc4 Nd6+ 52. Kd5 Nxf7 53. c7 g5 54. c8Q Kg7 55. Ke6 gxh4 56. Qd7 hxg3 57. Qxf7+ Kh6 58. Kxf6 g2 59. Qg7# 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.06.02"]
[Round "11"]
[White "Zambrana, Oswaldo"]
[Black "Campos, Maria Jose"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "2401"]
[BlackElo "2214"]
[PlyCount "74"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 d6 6. a4 0-0 7. h3 Na5 8. Ba2 c5 9. Bg5 a6 10. Bxf6 Bxf6 11. Nc3 Qe8 12. Nd5 Bd8 13. c3 Bd7 14. b3 Kh8 15. Re1 Nc6 16. b4 cxb4 17. cxb4 b5 18. Bb3 bxa4 19. Rxa4 a5 20. Nd2 Nd4 21. Ra3 a4 22. Ba2 f5 23. Nf3 Nb5 24. Rxa4 Rxa4 25. Qxa4 fxe4 26. Nd2 exd3 27. Qb3 Qg6 28. Re3 Bf5 29. Qc4 Nd4 30. Kh2 Bh4 31. Nf3 Bxf2 32. Nxd4 Be4 33. Rxe4 Bg3+ 34. Kg1 Qxe4 35. Nf3 Qe2 36. Nc3 Qf2+ 37. Kh1 Qf1+ 0-1

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.31"]
[Round "10"]
[White "Salinas Herrera, Pablo Patricio"]
[Black "Zambrana, Oswaldo"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2485"]
[BlackElo "2401"]
[PlyCount "71"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Qc7 6. a4 e5 7. Na3 f6 8. Nc4 Be6 9. b3 Nh6 10. 0-0 0-0-0 11. Qe1 Nf7 12. Qc3 g5 13. Be3 h5 14. Nb2 Rd4 15. a5 Kb8 16. Na4 Qe7 17. Qb2 Qd8 18. Ne1 h4 19. c3 Rxa4 20. Rxa4 g4 21. Ra1 g3 22. h3 Ng5 23. Qe2 Be7 24. Kh1 a6 25. f4 exf4 26. Bxf4+ Ka8 27. Nf3 Qd7 28. d4 Bxb3 29. Rab1 Nxh3 30. gxh3 Qxh3+ 31. Kg1 g2 32. Rfe1 Bc4 33. Qxc4 Qxf3 34. Rxb7 Kxb7 35. Rb1+ Ka7 36. Qe6 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.30"]
[Round "9"]
[White "Zambrana, Oswaldo"]
[Black "Arenas Vanegas, David"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2401"]
[BlackElo "2345"]
[PlyCount "113"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. 0-0 d6 6. c3 a5 7. Nbd2 0-0 8. h3 Ba7 9. Re1 Ne7 10. Nh4 Be6 11. Qf3 c6 12. Bb3 a4 13. Bc2 Ng6 14. Nf5 Bxf5 15. exf5 Nh4 16. Qe2 Nxf5 17. d4 Nh4 18. dxe5 dxe5 19. Nc4 Qd5 20. Qf1 e4 21. Rd1 Qh5 22. Nd6 Qg6 23. c4 Qg3 24. Kh1 Bxf2 25. Bxe4 Rad8 26. Bc2 Rxd6 27. Rxd6 Ng4 28. hxg4 Nf5 29. Qd3 Qh4+ 30. Qh3 Nxd6 31. Qxh4 Bxh4 32. c5 Nc4 33. b3 Ne5 34. bxa4 Nxg4 35. Rb1 Re8 36. Bf4 g5 37. Bd6 Bf2 38. Bf5 Ne3 39. Bd7 Re4 40. g4 Nxg4 41. Kg2 Bd4 42. Rxb7 h5 43. Bxc6 Re2+ 44. Kf3 Re3+ 45. Kg2 Re2+ 46. Kf3 Re3+ 47. Kg2 Ne5 48. Bd5 h4 49. c6 h3+ 50. Kf1 Nxc6 51. Bxc6 g4 52. Rb4 Rd3 53. Ke2 Re3+ 54. Kd2 Ba7 55. Rxg4+ Kh7 56. Be4+ Kh6 57. Bf4+ 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.29"]
[Round "8"]
[White "Corrales Jimenez, Fidel"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "2545"]
[BlackElo "2401"]
[PlyCount "100"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 c5 5. Bxb4 cxb4 6. e3 b6 7. Bd3 Bb7 8. Nbd2 0-0 9. 0-0 d6 10. Re1 Nbd7 11. Nf1 e5 12. Bf5 g6 13. Bxd7 Nxd7 14. e4 Re8 15. d5 Nc5 16. a3 a5 17. axb4 axb4 18. Rxa8 Qxa8 19. Qd2 Qa4 20. Qh6 Qd7 21. h3 f6 22. N1h2 Qe7 23. Qd2 b3 24. Qe3 Ra8 25. Nd2 Ra4 26. Rc1 Ra2 27. Rb1 Ra4 28. Nxb3 Rxc4 29. Nd2 Rc2 30. Nhf3 Nd7 31. Ra1 Qd8 32. b3 Rc8 33. h4 Ra8 34. Rxa8 Bxa8 35. h5 Nf8 36. hxg6 hxg6 37. Nh4 f5 38. Qh6 fxe4 39. Nxg6 Qf6 40. Qxf8+ Qxf8 41. Nxf8 Kxf8 42. Nxe4 Bxd5 43. Nxd6 Bxb3 44. Kf1 Be6 45. Ke1 Ke7 46. Nb5 Bd5 47. g3 Bc6 48. Nc3 Kd6 49. Kd2 Kc5 50. f4 exf4 1/2-1/2

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.28"]
[Round "7"]
[White "Cadena Montoya, Gustavo Adolfo"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "A67"]
[WhiteElo "2228"]
[BlackElo "2401"]
[PlyCount "78"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ Nfd7 9. a4 0-0 10. Nf3 Na6 11. 0-0 Nc7 12. Bd3 a6 13. f5 Ne5 14. Kh1 Nxf3 15. Qxf3 Ne8 16. Qh3 Qe7 17. Bd2 Bd7 18. Rf4 Nf6 19. Rh4 b5 20. Bg5 h5 21. Rf1 c4 22. Be2 b4 23. Nd1 Qe5 24. Qe3 Bxa4 25. Nf2 Rfe8 26. Bxc4 Qxb2 27. fxg6 fxg6 28. Nd3 Qc3 29. e5 Ng4 30. Qe4 Rf8 31. Bf4 Bb5 32. Qxg6 Qxc4 33. Qe6+ Rf7 34. Bh6 Raf8 35. h3 Qxd3 36. Rxf7 Rxf7 37. Rxg4 hxg4 38. Qxg4 Qf1+ 39. Kh2 Qf5 0-1

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.27"]
[Round "5"]
[White "Zambrana, Oswaldo"]
[Black "Supi, Luis Paulo"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2401"]
[BlackElo "2581"]
[PlyCount "99"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. 0-0 a6 6. a4 Bc5 7. c3 d6 8. Be3 0-0 9. Nbd2 Re8 10. b4 Bxe3 11. fxe3 Be6 12. b5 Bxc4 13. Nxc4 Nb8 14. b6 cxb6 15. Nh4 Re6 16. Nf5 Nbd7 17. Rb1 Kh7 18. Qf3 g6 19. Nfxd6 Qf8 20. d4 Rxd6 21. Nxe5 Kg8 22. Nd3 Rc6 23. e5 Nh7 24. Nb4 Rxc3 25. Qxb7 Qe8 26. Nd5 Rb8 27. Qxa6 Rcc8 28. Qd3 Rc6 29. Qa3 Kg7 30. Rb2 Ndf8 31. Rbf2 Rb7 32. Qb2 Qd8 33. Qb3 Qc8 34. h3 Ng5 35. Qd3 Rc1 36. h4 Ngh7 37. Qb3 Rxf1+ 38. Rxf1 Ne6 39. Nxb6 Qd8 40. a5 Qxh4 41. d5 Neg5 42. Qb2 Ne4 43. d6 Kg8 44. d7 Nc5 45. a6 Nxa6 46. e6 fxe6 47. Qd4 Qd8 48. Qe4 Rxb6 49. Qxg6+ Kh8 50. Qe8+ 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.27"]
[Round "6"]
[White "Zambrana, Oswaldo"]
[Black "Terry, Renato"]
[Result "0-1"]
[ECO "C06"]
[WhiteElo "2401"]
[BlackElo "2521"]
[PlyCount "110"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Ngf3 Nf6 5. e5 Nfd7 6. Bd3 c5 7. c3 Nc6 8. 0-0 g5 9. dxc5 Ndxe5 10. Nxe5 Nxe5 11. Bb5+ Bd7 12. Qe2 Bxb5 13. Qxb5+ Qd7 14. Qe2 Ng6 15. Nf3 f6 16. Be3 e5 17. Rad1 Rd8 18. b4 0-0 19. Bc1 b6 20. cxb6 axb6 21. Ne1 Qc6 22. Qb2 Rc8 23. Bd2 b5 24. Rc1 f5 25. Qb3 f4 26. f3 Kg7 27. Nc2 Bf6 28. Kh1 h5 29. Ne1 e4 30. Nc2 e3 31. Bxe3 fxe3 32. Nxe3 d4 33. Nf5+ Kh7 34. Rfd1 dxc3 35. Rd6 Qc4 36. Qc2 Rcd8 37. a3 Rxd6 38. Nxd6 Qc6 39. Ne4 Rd8 40. a4 bxa4 41. b5 Qb6 42. Qxa4 Kh6 43. Qc2 Be5 44. Rb1 Rd5 45. Qb3 Rd8 46. Qc2 Nf4 47. Ng3 Nd3 48. Ne4 Nf4 49. Ng3 Qg6 50. Nf5+ Kh7 51. Qe4 Nd3 52. Qb7+ Bg7 53. Nxg7 Nf2+ 54. Kg1 Qxb1+ 55. Kxf2 Rd2+ 0-1

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.26"]
[Round "4"]
[White "Quesada Perez, Luis Ernesto"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "E35"]
[WhiteElo "2567"]
[BlackElo "2401"]
[PlyCount "39"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 exd5 6. Bg5 h6 7. Bh4 g5 8. Bg3 Ne4 9. e3 Be6 10. Bd3 Nxg3 11. hxg3 Nd7 12. Nf3 Qe7 13. Qa4 c6 14. a3 Bd6 15. Qc2 0-0-0 16. b4 Kb8 17. Na4 h5 18. Nc5 h4 19. gxh4 gxh4 20. Bf5 1/2-1/2

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.25"]
[Round "2"]
[White "Tobar Beltran, Carlos Andres"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "A67"]
[WhiteElo "2018"]
[BlackElo "2401"]
[PlyCount "76"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ Nfd7 9. a4 0-0 10. Nf3 Na6 11. 0-0 Nc7 12. Bd3 a6 13. Re1 Re8 14. e5 dxe5 15. d6 Ne6 16. fxe5 Nd4 17. Bf4 Nxf3+ 18. Qxf3 Nxe5 19. Bxe5 Rxe5 20. Rxe5 Bxe5 21. Bc4 Be6 22. Bxe6 Bd4+ 23. Kh1 fxe6 24. Qxb7 Rb8 25. Qf3 Qxd6 26. Ne4 Qe7 27. Qe2 a5 28. Rf1 Rf8 29. Rd1 Rf5 30. Qb5 Qf8 31. Qa6 Kg7 32. Ng3 Rf2 33. Qxa5 Qb8 34. b4 Qb7 35. Rg1 Rb2 36. Qb5 Qxb5 37. axb5 Bxg1 38. b6 Bd4 0-1

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.25"]
[Round "3"]
[White "Zambrana, Oswaldo"]
[Black "Zapata Montoya, Andres Geronimo"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2401"]
[BlackElo "2140"]
[PlyCount "117"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 0-0 8. Ne2 Re8 9. Qc2 h5 10. Be3 Be6 11. 0-0-0 Qa5 12. a3 b5 13. Nf4 Bxf4 14. Bxf4 Nd7 15. h3 Nb6 16. g4 h4 17. Rhg1 g5 18. Bd2 Nc4 19. f4 Qd8 20. fxg5 fxg5 21. Rde1 Na5 22. Bh7+ Kh8 23. d5 cxd5 24. Bf5 d4 25. cxd4 Nb3+ 26. Kb1 Nxd2+ 27. Qxd2 Qd5 28. Bxe6 Rxe6 29. Rxe6 fxe6 30. Qf2 Qe4+ 31. Ka1 Qf4 32. Qe2 Qxd4 33. Rd1 Qf4 34. Rf1 Qd6 35. Qxb5 Rf8 36. Re1 Rg8 37. Qe2 Rg6 38. Qe4 Kh7 39. Rf1 Kh6 40. Qa8 Qd4 41. Rf7 Qd1+ 42. Ka2 Qd5+ 43. Qxd5 exd5 44. Rxa7 Re6 45. a4 Re3 46. Rd7 Rxh3 47. Rd6+ Kg7 48. Rxd5 Kf6 49. a5 Re3 50. Rf5+ Kg6 51. Rf1 Re4 52. Ka3 Rxg4 53. a6 Re4 54. b4 h3 55. a7 Re8 56. b5 g4 57. b6 g3 58. b7 g2 59. Rg1 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.24"]
[Round "1"]
[White "Zambrana, Oswaldo"]
[Black "Uribe Valencia, Victor Alexis"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2401"]
[BlackElo "1855"]
[PlyCount "89"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c4 b4 12. Nc2 0-0 13. g3 Rb8 14. b3 Bg5 15. Bg2 Be6 16. 0-0 a5 17. Qd3 Ne7 18. h4 Bh6 19. Nxe7+ Qxe7 20. Rfd1 Rfd8 21. a3 g6 22. axb4 axb4 23. Ra4 Bf8 24. Rb1 Qc7 25. Rxb4 Qc5 26. Rxb8 Rxb8 27. Bf1 f5 28. b4 fxe4 29. Qxe4 Qc7 30. Ne3 Qf7 31. b5 Bh6 32. Rc1 Rc8 33. b6 d5 34. Qxe5 Bg7 35. Qf4 Qxf4 36. gxf4 dxc4 37. Bxc4 Bxc4 38. Rxc4 Rb8 39. Nd5 Kf7 40. Rc6 Bd4 41. Kg2 h6 42. h5 gxh5 43. f5 h4 44. Rc7+ Kf8 45. b7 1-0

[Event "BOL-ch"]
[Site "Oruro"]
[Date "2024.04.07"]
[Round "9"]
[White "Zambrana, Oswaldo"]
[Black "Gemy Vargas, Jose Daniel"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2407"]
[BlackElo "2317"]
[PlyCount "99"]
[EventDate "2024.04.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 219 Extra"]
[Source "ChessBase"]
[SourceDate "2024.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 d6 6. c3 a5 7. Re1 0-0 8. h3 h6 9. Nbd2 Be6 10. Bb5 Ne7 11. d4 exd4 12. cxd4 Ba7 13. a4 c6 14. Bd3 Ng6 15. Nf1 d5 16. e5 Ne4 17. N1d2 Nxd2 18. Bxd2 c5 19. Qc1 Nh4 20. Nxh4 Qxh4 21. dxc5 Rac8 22. Be3 d4 23. Bf4 Bxc5 24. Bg3 Qg5 25. Qb1 f5 26. exf6 Qxf6 27. Re4 Bd5 28. Re5 Qd8 29. Qd1 b6 30. Qg4 Bf7 31. Qe4 g6 32. h4 Re8 33. h5 Rxe5 34. Bxe5 Qd5 35. hxg6 Be6 36. Qf4 Be7 37. Re1 Bg5 38. Qg3 Rc1 39. Rxc1 Bxc1 40. f4 Qb3 41. Qh4 Qd1+ 42. Kh2 Bxf4+ 43. Bxf4 Qxd3 44. Qd8+ Kg7 45. Qe7+ Kxg6 46. Qxe6+ Kg7 47. Be5+ Kf8 48. Qxb6 Qe2 49. Qf6+ Ke8 50. Qe6+ 1-0

[Event "BOL-ch"]
[Site "Oruro"]
[Date "2024.04.06"]
[Round "8"]
[White "Martinez, Ariel A"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2142"]
[BlackElo "2407"]
[PlyCount "96"]
[EventDate "2024.04.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 219 Extra"]
[Source "ChessBase"]
[SourceDate "2024.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d4 cxd4 6. Qxd4 Qxd4 7. Nxd4 e5 8. Nf3 f6 9. Be3 Be6 10. a3 Nh6 11. h3 Nf7 12. Nc3 Nd6 13. Nd2 Be7 14. f3 b6 15. Ne2 Kd7 16. 0-0-0 g5 17. g4 h5 18. Bf2 Rh7 19. Ng3 hxg4 20. hxg4 Rah8 21. Rxh7 Rxh7 22. Rh1 Rh4 23. Rxh4 gxh4 24. Ne2 h3 25. Bg3 Nf7 26. Bf2 Ng5 27. Ng3 c5 28. Ngf1 c4 29. c3 Kc6 30. Nh2 Bf7 31. Be3 Kb5 32. Kb1 Ne6 33. Ndf1 Nf4 34. Ng3 Bc5 35. Bxf4 exf4 36. Nh5 Bg1 37. Nf1 h2 38. Nxh2 Bxh2 39. Nxf6 Kc6 40. g5 Bg3 41. Kc1 Bh4 42. Kd2 Bxg5 43. Ng4 Kd6 44. Ke2 Ke6 45. Nh2 Be7 46. Nf1 Bc5 47. Nd2 Ke5 48. Nf1 b5 0-1

[Event "BOL-ch"]
[Site "Oruro"]
[Date "2024.04.06"]
[Round "7"]
[White "Mayta Aiza, Maveric"]
[Black "Zambrana, Oswaldo"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "2084"]
[BlackElo "2407"]
[PlyCount "85"]
[EventDate "2024.04.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 219 Extra"]
[Source "ChessBase"]
[SourceDate "2024.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 d6 7. Qd2 h6 8. Nge2 e5 9. 0-0 Nge7 10. h3 a6 11. a4 Nd4 12. f4 exf4 13. Nxf4 0-0 14. Rf2 Kh7 15. Raf1 Ng8 16. Ncd5 b5 17. Ne2 Nxe2+ 18. Qxe2 Be6 19. Nf4 Qd7 20. axb5 axb5 21. e5 Rae8 22. g4 Bxe5 23. c4 Bg7 24. b3 Ne7 25. Qd2 bxc4 26. dxc4 Rb8 27. Qd3 Rb6 28. Nh5 Ng8 29. Bd5 Be5 30. Nf4 Bxf4 31. Rxf4 Bxd5 32. Qxd5 f6 33. Bxc5 Rxb3 34. Bxd6 Rd8 35. c5 Rxh3 36. Rb1 Kh8 37. Rb7 Qe8 38. Re4 Rxd6 39. cxd6 Qc8 40. Rc4 Qe8 41. Qe4 Rg3+ 42. Kh2 Qf8 43. Qxg6 1-0

[Event "BOL-ch"]
[Site "Oruro"]
[Date "2024.04.05"]
[Round "6"]
[White "Zambrana, Oswaldo"]
[Black "Bolanos, Fernando"]
[Result "1-0"]
[ECO "B69"]
[WhiteElo "2407"]
[BlackElo "2227"]
[PlyCount "57"]
[EventDate "2024.04.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 219 Extra"]
[Source "ChessBase"]
[SourceDate "2024.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 Be7 10. Nf3 b5 11. Bxf6 gxf6 12. Kb1 b4 13. Ne2 Qb6 14. Ned4 h5 15. Bc4 Na5 16. Bd3 Nb7 17. Qe2 Nc5 18. Bc4 Rc8 19. Rhe1 Nxe4 20. Bxe6 Nc3+ 21. bxc3 fxe6 22. c4 e5 23. fxe5 dxe5 24. Nxe5 fxe5 25. Qxe5 Rh7 26. Nf5 Rc5 27. Ng7+ Rxg7 28. Qxg7 Be6 29. Qg6+ 1-0

[Event "BOL-ch"]
[Site "Oruro"]
[Date "2024.04.04"]
[Round "5"]
[White "Ribera, Miguel Angel"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "1953"]
[BlackElo "2407"]
[PlyCount "70"]
[EventDate "2024.04.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 219 Extra"]
[Source "ChessBase"]
[SourceDate "2024.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.31"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. d4 h6 4. cxd5 exd5 5. Bf4 Nf6 6. e3 Bd6 7. Bxd6 Qxd6 8. Bd3 0-0 9. Nge2 c6 10. h3 b6 11. 0-0 Ba6 12. Ng3 Bxd3 13. Qxd3 Nbd7 14. Rad1 Rfe8 15. Rfe1 Rad8 16. Nf5 Qc7 17. f3 h5 18. e4 dxe4 19. fxe4 g6 20. e5 Nxe5 21. Qg3 h4 22. Qxh4 Ned7 23. Ne7+ Kg7 24. Re3 Nf8 25. Rde1 Qd7 26. d5 c5 27. Re5 N8h7 28. g4 b5 29. g5 Nh5 30. d6 Qxd6 31. Nf5+ gxf5 32. Rxe8 Rxe8 33. Rxe8 Qg6 34. Nd5 Nxg5 35. Kf1 Nf3 0-1

[Event "BOL-ch"]
[Site "Oruro"]
[Date "2024.04.04"]
[Round "4"]
[White "Zambrana, Oswaldo"]
[Black "Ticona Rocabado, Licael Roderick"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2407"]
[BlackElo "2377"]
[PlyCount "90"]
[EventDate "2024.04.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 219 Extra"]
[Source "ChessBase"]
[SourceDate "2024.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 d6 6. c3 0-0 7. a4 a5 8. Be3 Ba7 9. Nbd2 h6 10. h3 Be6 11. Bxe6 fxe6 12. Qb3 Qd7 13. Bxa7 Rxa7 14. d4 exd4 15. cxd4 d5 16. Rfe1 Ra6 17. exd5 exd5 18. Ne5 Nxe5 19. Rxe5 Rb6 20. Qc3 Qc6 21. Qxc6 Rxc6 22. b3 Rc2 23. Rd1 c6 24. f3 Rc3 25. Kf2 Rd3 26. Ke2 Rxd4 27. Ke3 Rb4 28. Kd3 Re8 29. Rxe8+ Nxe8 30. Rc1 Rb6 31. Rc5 Ra6 32. Kd4 Nf6 33. Rc1 Nd7 34. g4 Rb6 35. f4 Rb4+ 36. Ke3 Kf7 37. Kf3 Ke6 38. Re1+ Kf7 39. h4 Nc5 40. Re3 Ne6 41. f5 Nd4+ 42. Kf2 h5 43. gxh5 Nxf5 44. Rc3 Rxh4 45. Rc5 Rh2+ 0-1

[Event "BOL-ch"]
[Site "Oruro"]
[Date "2024.04.03"]
[Round "3"]
[White "Titichoca Daza, Daniel Henry"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2130"]
[BlackElo "2407"]
[PlyCount "82"]
[EventDate "2024.04.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 219 Extra"]
[Source "ChessBase"]
[SourceDate "2024.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c4 b4 12. Nc2 0-0 13. Qf3 Bg5 14. h4 Bh6 15. g4 f6 16. a3 b3 17. Qxb3 Rb8 18. Qc3 Bxg4 19. Bh3 f5 20. b4 Bxh3 21. Qxh3 fxe4 22. Qg4 Kh8 23. Qxe4 Qd7 24. Rd1 Rbe8 25. Kf1 Qf7 26. Rh2 Qh5 27. Re1 Bd2 28. Re2 Bf4 29. Rh1 Ne7 30. Nc7 Rc8 31. Nxa6 Qf7 32. c5 d5 33. Qd3 e4 34. Qb3 Nf5 35. b5 e3 36. Rh3 Qh5 37. b6 Qg4 38. Rhxe3 Bxe3 39. Rxe3 Nxe3+ 40. Qxe3 Qd1+ 41. Ne1 Rce8 0-1

[Event "BOL-ch"]
[Site "Oruro"]
[Date "2024.04.03"]
[Round "2"]
[White "Zambrana, Oswaldo"]
[Black "Cueto Chajtur, Johny"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2407"]
[BlackElo "2100"]
[PlyCount "69"]
[EventDate "2024.04.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 219 Extra"]
[Source "ChessBase"]
[SourceDate "2024.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.31"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 a6 4. Bc4 b5 5. Bb3 Bb7 6. 0-0 e6 7. Re1 Nf6 8. e5 Nd5 9. Bg5 f6 10. exf6 Bxf6 11. Bh6 Kf7 12. Nbd2 Bg7 13. Bg5 Nf6 14. Ne5+ Kg8 15. Ne4 Bxe4 16. Rxe4 h6 17. Bxf6 Bxf6 18. Nxg6 Rh7 19. d5 c5 20. dxe6 c4 21. e7 Qe8 22. Qd5+ Kg7 23. Qxa8 Kxg6 24. Rg4+ Bg5 25. Qe4+ Kg7 26. h4 Nc6 27. hxg5 h5 28. Rf4 Qxe7 29. Qxe7+ Nxe7 30. Bxc4 bxc4 31. Rxc4 Kg6 32. Rd1 Nf5 33. Rc7 Kxg5 34. Rcxd7 Rh6 35. R1d5 1-0

[Event "BOL-ch"]
[Site "Oruro"]
[Date "2024.04.02"]
[Round "1"]
[White "Montevilla Cahuasa, Jonathan Isaac"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "1974"]
[BlackElo "2407"]
[PlyCount "155"]
[EventDate "2024.04.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 219 Extra"]
[Source "ChessBase"]
[SourceDate "2024.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Qc7 6. h3 e5 7. 0-0 Nf6 8. a3 Nd7 9. Be3 a5 10. Nbd2 h6 11. c3 b6 12. d4 Ba6 13. Re1 Bg7 14. dxc5 Nxc5 15. Bxc5 bxc5 16. c4 0-0 17. Qc2 Bc8 18. Rad1 Be6 19. Nf1 Rfb8 20. b3 a4 21. bxa4 Qa5 22. Ne3 Qxa4 23. Qxa4 Rxa4 24. Rd6 Rc8 25. Red1 Rxa3 26. Rd8+ Rxd8 27. Rxd8+ Kh7 28. Rd6 Ra6 29. Ng4 Bxg4 30. hxg4 Ra1+ 31. Kh2 Rc1 32. Rxc6 Rxc4 33. Kg3 Rc3 34. Rc7 Kg8 35. Rc8+ Bf8 36. Kh2 Kg7 37. Rc6 Rc4 38. Nxe5 Rxe4 39. Nd7 c4 40. f3 Rd4 41. Nxf8 Kxf8 42. Kg3 Ke7 43. Kf2 Kd7 44. Rc5 Kd6 45. Rc8 Kd5 46. Ke2 f6 47. g3 h5 48. gxh5 gxh5 49. Rc7 f5 50. Rf7 Ke6 51. Rh7 c3 52. Rxh5 Rd2+ 53. Ke3 Rd1 54. Rh2 Kd5 55. g4 fxg4 56. fxg4 Kc4 57. g5 Rd3+ 58. Ke4 Rd2 59. Rh8 Rd4+ 60. Ke3 Rg4 61. Rc8+ Kb3 62. Rb8+ Kc2 63. Rb5 Kd1 64. Rb1+ Kc2 65. Rb5 Rc4 66. g6 Rg4 67. Rb6 Kd1 68. Rb1+ Kc2 69. Rb6 Kc1 70. Kf3 Rg1 71. Kf4 c2 72. Kf5 Kd2 73. Rd6+ Ke3 74. Rc6 c1Q 75. Rxc1 Rxc1 76. g7 Rg1 77. Kf6 Rxg7 78. Kxg7 1/2-1/2

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.12.02"]
[Round "9"]
[White "Zambrana, Oswaldo"]
[Black "Mareco, Sandro"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2400"]
[BlackElo "2606"]
[PlyCount "53"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 d6 6. c3 a5 7. Re1 0-0 8. h3 Be6 9. Nbd2 Ba7 10. a4 h6 11. Nf1 Nxe4 12. Rxe4 d5 13. Bxd5 Bxd5 14. Re1 Bc5 15. Ng3 Re8 16. Be3 Bf8 17. Nd2 g6 18. Rf1 f5 19. f4 exf4 20. Bxf4 g5 21. Nxf5 gxf4 22. Rxf4 Kh8 23. Qf1 Ne5 24. d4 Ng6 25. Rg4 Ra6 26. Qd3 Be6 27. Rxg6 1-0

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.12.01"]
[Round "8"]
[White "Delgado Rosas, Alex Antonio"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2105"]
[BlackElo "2400"]
[PlyCount "100"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 cxd4 6. exd4 Bg4 7. c3 e6 8. Qb3 Bd6 9. Bxd6 Qxd6 10. Bd3 0-0 11. 0-0 Rab8 12. a4 a6 13. a5 Qc7 14. Qa4 Nd7 15. h3 Bh5 16. Rfe1 Rfe8 17. Re3 Rbd8 18. Qc2 Bg6 19. b4 e5 20. dxe5 Ndxe5 21. Rae1 Re6 22. Bxg6 hxg6 23. Nxe5 Rxe5 24. Nf3 Rxe3 25. Rxe3 Qf4 26. Qd2 Kh7 27. Rd3 Qxd2 28. Rxd2 Kg8 29. Kf1 Kf8 30. Ke2 Ke7 31. Kd3 Kd6 32. Re2 f6 33. Nd4 Rc8 34. Nxc6 bxc6 35. Kd4 Rh8 36. Kd3 Rc8 37. Kd4 g5 38. Re3 Rb8 39. Re2 Rh8 40. Re3 Rh4+ 41. g4 f5 42. Rg3 f4 43. Rd3 Rh8 44. c4 Rb8 45. Rb3 Rxb4 46. Rxb4 c5+ 47. Kc3 cxb4+ 48. Kxb4 Kc6 49. Kc3 dxc4 50. Kxc4 f3 0-1

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.30"]
[Round "7"]
[White "Zambrana, Oswaldo"]
[Black "Hernandez Guerrero, Gilberto Eduardo"]
[Result "1/2-1/2"]
[ECO "B48"]
[WhiteElo "2400"]
[BlackElo "2527"]
[PlyCount "72"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. 0-0-0 b5 9. f3 Be7 10. g4 Nxd4 11. Qxd4 Bb7 12. g5 Nh5 13. Kb1 Rc8 14. a3 Bc5 15. Qd2 Bxe3 16. Qxe3 0-0 17. h4 Rfd8 18. Bh3 Nf4 19. h5 Qe5 20. Bg4 d5 21. Qb6 d4 22. g6 hxg6 23. hxg6 Nxg6 24. Bh5 Qc7 25. Qxc7 Rxc7 26. Bxg6 fxg6 27. Rhg1 Rcd7 28. Ne2 d3 29. Nf4 dxc2+ 30. Kxc2 Rxd1 31. Rxd1 Rxd1 32. Kxd1 Kf7 33. Nd3 Kf6 34. Ke2 e5 35. Kf2 a5 36. b4 axb4 1/2-1/2

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.29"]
[Round "6"]
[White "Miranda Mesa, Elier"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2490"]
[BlackElo "2400"]
[PlyCount "52"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Bc4 a6 5. a4 e6 6. Nge2 Nf6 7. 0-0 d5 8. exd5 exd5 9. Ba2 Bd6 10. d3 Ne6 11. Ng3 0-0 12. Nh5 Nxh5 13. Qxh5 Nd4 14. Bg5 Qd7 15. Bxd5 Nxc2 16. Rac1 Nb4 17. Bc4 b6 18. Rfe1 Qf5 19. Ne4 Bc7 20. Re3 Be6 21. Bxe6 fxe6 22. Rf3 Qe5 23. Rh3 Qf5 24. Rf3 Qe5 25. Rh3 Qf5 26. Re1 Bd8 1/2-1/2

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.28"]
[Round "5"]
[White "Zambrana, Oswaldo"]
[Black "Ortiz Verdesoto, Anahi Eduarda"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2400"]
[BlackElo "2175"]
[PlyCount "75"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 d6 6. a4 0-0 7. Re1 Na5 8. Ba2 c5 9. Bg5 Be6 10. Bxf6 Bxf6 11. Nc3 g6 12. Nd5 Bg7 13. c3 Nc6 14. h3 Rb8 15. Qd2 h6 16. b4 cxb4 17. cxb4 Ne7 18. Nxe7+ Qxe7 19. Bc4 Rfd8 20. Qa2 Rd7 21. Rac1 Rbd8 22. Bd5 Bxd5 23. Qxd5 Rc7 24. Rc4 Qd7 25. Nd2 Rxc4 26. Nxc4 Qxa4 27. Qxb7 Bf8 28. Ne3 Qa3 29. Nd5 Kg7 30. Re3 Qc1+ 31. Kh2 Qc8 32. Qxa7 Rd7 33. Qa2 Rb7 34. Qc4 Qb8 35. Rf3 h5 36. h4 Qd8 37. g3 Qb8 38. Qc6 1-0

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.27"]
[Round "4"]
[White "Berdayes Ason, Dylan Isidro"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2507"]
[BlackElo "2400"]
[PlyCount "111"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 h6 4. Nf3 Nf6 5. Bf4 Bd6 6. Bxd6 Qxd6 7. e3 0-0 8. c5 Qe7 9. Be2 Nbd7 10. 0-0 c6 11. b4 b6 12. Qc2 a5 13. a3 Bb7 14. e4 dxe4 15. Nxe4 Nxe4 16. Qxe4 Nf6 17. Qc2 Ba6 18. Ne5 Bxe2 19. Qxe2 Qc7 20. Nc4 bxc5 21. bxc5 Nd7 22. Rfb1 Rfb8 23. g3 a4 24. Qc2 e5 25. dxe5 Nxc5 26. Rxb8+ Rxb8 27. Nd6 Nb3 28. Rd1 c5 29. Qc4 Qe7 30. Re1 Qe6 31. Qe4 Nd4 32. Rc1 Qh3 33. Nc4 Rb3 34. Nd2 Rb2 35. Rb1 Rxb1+ 36. Nxb1 Qe6 37. Nc3 Qb3 38. Qa8+ Kh7 39. Nxa4 Qxa3 40. Qe4+ Kh8 41. Qa8+ Kh7 42. Kg2 Ne6 43. Qe4+ g6 44. Nb6 Qb4 45. Nc4 Kg7 46. h4 h5 47. Qd5 Nc7 48. Qd3 Qb7+ 49. Qf3 Qd5 50. Qxd5 Nxd5 51. Kf3 f6 52. Ke4 Nc3+ 53. Kd3 Nd5 54. f4 fxe5 55. Nxe5 Ne7 56. g4 1/2-1/2

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.26"]
[Round "3"]
[White "Zambrana, Oswaldo"]
[Black "Cabezas Solano, David Alejandro"]
[Result "1-0"]
[ECO "B96"]
[WhiteElo "2400"]
[BlackElo "2171"]
[PlyCount "59"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qe2 Nbd7 8. 0-0-0 Qc7 9. f4 b5 10. g4 b4 11. Nd5 exd5 12. exd5+ Be7 13. Nc6 Nb8 14. Bxf6 gxf6 15. Bg2 Nxc6 16. dxc6 Ra7 17. f5 a5 18. Bd5 Kd8 19. Qe4 Ba6 20. Qd4 Rg8 21. Rhe1 Bb5 22. Bxf7 Rf8 23. Bd5 Ra6 24. Re6 Kc8 25. g5 Qa7 26. Qe4 Bd8 27. Rxd6 Bc7 28. Qe7 Bxd6 29. Be6+ Kb8 30. Qxd6+ 1-0

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.26"]
[Round "2"]
[White "Zambrana, Oswaldo"]
[Black "Layton Henao, Cesar Tulio"]
[Result "1-0"]
[ECO "B65"]
[WhiteElo "2400"]
[BlackElo "1896"]
[PlyCount "49"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "EXT 2025"]
[Source "ChessBase"]
[SourceDate "2024.10.14"]
[SourceVersion "1"]
[SourceVersionDate "2024.10.14"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 Be7 8. 0-0-0 0-0 9. f4 Nxd4 10. Qxd4 Qa5 11. Bc4 Bd7 12. Bb3 Bc6 13. Rhe1 b5 14. Nd5 Nxd5 15. exd5 Bxg5 16. dxc6 e5 17. Qxd6 Bxf4+ 18. Kb1 Bxh2 19. Rf1 Bf4 20. g3 Bxg3 21. Rxf7 Rxf7 22. c7 Bh4 23. Qd7 Qb4 24. Qxf7+ Kh8 25. Rd8+ 1-0

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.25"]
[Round "1"]
[White "Pastor Carvajal, Jeigoth"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1985"]
[BlackElo "2400"]
[PlyCount "37"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 5. d3 d5 6. f4 Be7 7. Nf3 Nf6 8. 0-0 0-0 9. Qe1 d4 10. Na4 c4 11. dxc4 c5 12. e5 Nd7 13. b3 Bb7 14. Nb2 Qb6 15. Nd3 f6 16. Bd2 Qc6 17. Qg3 fxe5 18. fxe5 Rf5 19. Bh6 1/2-1/2

[Event "Oruro Baptista Memorial"]
[Site "Oruro"]
[Date "2023.11.05"]
[Round "9"]
[White "Zambrana, Oswaldo"]
[Black "Mirzoev, Azer"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2400"]
[BlackElo "2415"]
[PlyCount "39"]
[EventDate "2023.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 a6 6. 0-0 Ba7 7. a4 d6 8. Nbd2 0-0 9. h3 Ne7 10. Bb3 Ng6 11. d4 h6 12. Re1 Re8 13. a5 Bd7 14. Qc2 Bc6 15. Ba4 Bxa4 16. Qxa4 Qd7 17. dxe5 Nxe5 18. Nxe5 Rxe5 19. Qxd7 Nxd7 20. Nf3 1/2-1/2

[Event "Oruro Baptista Memorial"]
[Site "Oruro"]
[Date "2023.11.04"]
[Round "8"]
[White "Rios Gomez, Cristhian Camilo"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "E38"]
[WhiteElo "2475"]
[BlackElo "2400"]
[PlyCount "25"]
[EventDate "2023.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Na6 6. a3 Bxc3+ 7. Qxc3 Nxc5 8. Bg5 Nce4 9. Bxf6 Qxf6 10. Qxf6 Nxf6 11. Nf3 d5 12. cxd5 Nxd5 13. e3 1/2-1/2

[Event "Oruro Baptista Memorial"]
[Site "Oruro"]
[Date "2023.11.04"]
[Round "7"]
[White "Zambrana, Oswaldo"]
[Black "Ribera, Miguel Angel"]
[Result "1-0"]
[ECO "B96"]
[WhiteElo "2400"]
[BlackElo "1923"]
[PlyCount "51"]
[EventDate "2023.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qe2 b5 8. 0-0-0 Nbd7 9. f4 Qc7 10. g4 Be7 11. Bxf6 Bxf6 12. g5 Bxd4 13. Rxd4 Bb7 14. Bh3 0-0 15. Rhd1 Nc5 16. a3 d5 17. exd5 exd5 18. Kb1 Rfe8 19. Qh5 Ne4 20. Nxe4 Rxe4 21. f5 g6 22. Qh6 Re2 23. Rc1 gxf5 24. Bxf5 f6 25. gxf6 Rxh2 26. Rg4+ 1-0

[Event "Oruro Baptista Memorial"]
[Site "Oruro"]
[Date "2023.11.03"]
[Round "6"]
[White "Tapia Espada, Antonio Enrique"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "1686"]
[BlackElo "2400"]
[PlyCount "66"]
[EventDate "2023.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 h6 4. Nf3 Nf6 5. e3 Be7 6. b3 0-0 7. Be2 Nbd7 8. 0-0 b6 9. cxd5 exd5 10. Ne5 Bb7 11. f4 c5 12. Ba3 Rc8 13. Rc1 a6 14. g4 cxd4 15. Bxe7 Qxe7 16. exd4 Ne4 17. Qe1 Nxe5 18. fxe5 b5 19. Bd3 Qg5 20. Nxe4 dxe4 21. Be2 Rfd8 22. Rxc8 Bxc8 23. Qf2 Bxg4 24. Qxf7+ Kh8 25. Bxg4 Qxg4+ 26. Kh1 e3 27. Rg1 Qe4+ 28. Rg2 Rg8 29. Qh5 Rc8 30. Qd1 e2 31. Qe1 Rc1 32. Qxc1 e1Q+ 33. Qxe1 Qxe1+ 0-1

[Event "Oruro Baptista Memorial"]
[Site "Oruro"]
[Date "2023.11.03"]
[Round "5"]
[White "Zambrana, Oswaldo"]
[Black "Beltran Salvador, Milka"]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "2400"]
[BlackElo "1624"]
[PlyCount "67"]
[EventDate "2023.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. 0-0-0 b5 9. f3 Bb4 10. Kb1 Bb7 11. Nxc6 Qxc6 12. Bd4 Bc5 13. Qg5 Bxd4 14. Rxd4 0-0 15. Be2 h6 16. Qd2 Qc7 17. g4 d5 18. g5 hxg5 19. Qxg5 dxe4 20. Rg1 Ne8 21. Nxe4 f6 22. Qh4 Rd8 23. Rxd8 Qxd8 24. Bd3 Qd4 25. Rg4 Bxe4 26. Rxe4 Qd5 27. Rd4 Qb7 28. Bh7+ Kf7 29. Qh5+ Ke7 30. Qc5+ Kf7 31. Bg6+ Kg8 32. Rh4 f5 33. Rh8+ Kxh8 34. Qxf8# 1-0

[Event "Oruro Baptista Memorial"]
[Site "Oruro"]
[Date "2023.11.02"]
[Round "4"]
[White "Ferrufino, Boris"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1884"]
[BlackElo "2400"]
[PlyCount "36"]
[EventDate "2023.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Nbd2 d5 4. e3 Nbd7 5. Bd3 b6 6. Ne5 Nxe5 7. dxe5 Nd7 8. f4 Bb7 9. 0-0 g6 10. b3 Nc5 11. Ba3 Nxd3 12. Bxf8 Kxf8 13. cxd3 Ba6 14. Nf3 c5 15. Rf2 Kg7 16. Qd2 Rc8 17. h3 h5 18. Rc1 Qd7 1/2-1/2

[Event "Oruro Baptista Memorial"]
[Site "Oruro"]
[Date "2023.11.02"]
[Round "3"]
[White "Zambrana, Oswaldo"]
[Black "Arce, Valeria"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2400"]
[BlackElo "1382"]
[PlyCount "89"]
[EventDate "2023.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Be7 5. Nf3 Nf6 6. Nxf6+ Bxf6 7. Bd3 0-0 8. 0-0 c5 9. dxc5 Nc6 10. c3 Qc7 11. Be3 e5 12. Qc2 g6 13. Bh6 Bg7 14. Bxg7 Kxg7 15. b4 Be6 16. Rfe1 a5 17. a3 f6 18. Be4 Rfd8 19. h4 Bd5 20. h5 Bxe4 21. Qxe4 Qf7 22. Rad1 gxh5 23. Nh4 Qb3 24. Nf5+ Kh8 25. Nd6 Rd7 26. b5 Na7 27. Qf5 Rg7 28. Qxf6 Qg8 29. Nf5 Rf8 30. Qxg7+ Qxg7 31. Nxg7 Kxg7 32. Rd7+ Rf7 33. Rxf7+ Kxf7 34. c4 Kf6 35. f4 exf4 36. Re8 Kf5 37. Ra8 Nxb5 38. cxb5 Kg4 39. c6 bxc6 40. bxc6 h4 41. Rxa5 f3 42. c7 fxg2 43. c8Q+ Kg3 44. Ra4 h3 45. Qc3# 1-0

[Event "Oruro Baptista Memorial"]
[Site "Oruro"]
[Date "2023.11.01"]
[Round "2"]
[White "Salazar Salinas, Rodrigo"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "1495"]
[BlackElo "2400"]
[PlyCount "193"]
[EventDate "2023.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. d4 e6 2. Nc3 c5 3. d5 Nf6 4. e4 exd5 5. Nxd5 Nxd5 6. Qxd5 Be7 7. Be3 Nc6 8. 0-0-0 d6 9. Bb5 0-0 10. Bxc6 Be6 11. Qd3 bxc6 12. Ne2 Qa5 13. a3 Rab8 14. Bd2 Qb6 15. Bc3 d5 16. Qg3 f6 17. Nf4 Bf7 18. exd5 Bd6 19. dxc6 Qc7 20. Rxd6 Qxd6 21. c7 Qxc7 22. Nd3 Qxg3 23. hxg3 Rbc8 24. Re1 Rfe8 25. Rxe8+ Bxe8 26. Kd2 Bb5 27. Ke3 Kf7 28. g4 g5 29. f3 Ba4 30. b3 Be8 31. Nf2 c4 32. Ne4 Ke6 33. b4 Bg6 34. Bd4 Bxe4 35. Kxe4 a6 36. c3 Rf8 37. a4 f5+ 38. gxf5+ Rxf5 39. g4 Rf4+ 40. Ke3 Kd5 41. b5 axb5 42. axb5 Rf8 43. b6 Re8+ 44. Kf2 Kc6 45. Kf1 Ra8 46. Ke2 Kd5 47. Ke3 Ra1 48. Ke2 Rb1 49. Kd2 Kc6 50. Ke3 Rd1 51. Ke4 Rd3 52. f4 gxf4 53. Kxf4 Rd1 54. Ke4 Re1+ 55. Be3 Kb7 56. Kf3 Rh1 57. Kf4 Kc6 58. Ke4 Re1 59. Kf4 Kd5 60. Bd4 Rf1+ 61. Ke3 Rf7 62. Bh8 Rf1 63. Bd4 Rf8 64. g5 Rf1 65. Bf6 Rb1 66. Bd4 Re1+ 67. Kf4 Ke6 68. Bc5 Kd7 69. Bd4 Kc6 70. Kf3 Re7 71. Kf4 Kd5 72. Kf3 Rf7+ 73. Ke3 Rf8 74. Bg7 Rg8 75. Bf6 Rb8 76. Bd4 Rf8 77. Bg7 Rf1 78. Bd4 Kc6 79. Ke4 Rh1 80. Ke5 Rh4 81. Be3 Rh3 82. Bd4 Rg3 83. Kf4 Rg2 84. Kf5 Rb2 85. Ke4 Rb5 86. Be3 Kd6 87. Kd4 Rxb6 88. Kxc4 Rc6+ 89. Kd4 Ke6 90. c4 Ra6 91. Ke4 Ra1 92. Kd4 Rd1+ 93. Kc5 Rd3 94. Bc1 Rb3 95. Bd2 Rd3 96. Bc1 Rb3 97. Bd2 1/2-1/2

[Event "Oruro Baptista Memorial"]
[Site "Oruro"]
[Date "2023.11.01"]
[Round "1"]
[White "Zambrana, Oswaldo"]
[Black "Fernandez Mallco, Alejandro Elvis"]
[Result "1-0"]
[ECO "C06"]
[WhiteElo "2400"]
[BlackElo "1282"]
[PlyCount "99"]
[EventDate "2023.11.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BOL"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 b6 8. a3 Bb7 9. b4 c4 10. Bc2 b5 11. a4 a6 12. 0-0 Be7 13. f4 g6 14. Nf3 Qb6 15. Kh1 0-0-0 16. Be3 f5 17. exf6 Bxf6 18. Qd2 Ne7 19. axb5 Qxb5 20. Ne5 Bxe5 21. fxe5 Nf5 22. Bg5 Rde8 23. g4 Ne7 24. Ba4 Qb6 25. Rf7 Nc6 26. Bxc6 Bxc6 27. Bf6 Rhf8 28. Rxf8 Rxf8 29. Qh6 Rf7 30. g5 Bb7 31. Qh3 Kb8 32. Nf4 Nf8 33. Qg4 Bc8 34. h4 Kb7 35. Ra5 Kb8 36. Kg2 Nd7 37. Qd1 Kb7 38. Qa4 Nxf6 39. gxf6 Bd7 40. Qc2 Qd8 41. Qa2 Qb6 42. Kg3 Bb5 43. Qe2 Qc6 44. Qg4 Qe8 45. Qxe6 Qxe6 46. Nxe6 Ka7 47. Ng5 Rf8 48. Nxh7 Rf7 49. e6 Rxh7 50. f7 1-0

[Event "South America-ch"]
[Site "Lima"]
[Date "2023.09.22"]
[Round "9"]
[White "Zambrana, Oswaldo"]
[Black "Vivas Zamora, Fabian Ernesto"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2380"]
[BlackElo "2346"]
[PlyCount "61"]
[EventDate "2023.09.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 216 Extra"]
[Source "ChessBase"]
[SourceDate "2023.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. 0-0 d6 6. c3 g5 7. Na3 Bg7 8. Bb3 Nh5 9. Nc4 Nf4 10. Ne3 h5 11. g3 Nh3+ 12. Kg2 Bf6 13. Ng1 Nxg1 14. Kxg1 Bh3 15. Re1 Qd7 16. Qf3 Rh6 17. Nd5 Bd8 18. Ba4 a6 19. Qe2 h4 20. Be3 Qe6 21. Bxg5 Rg6 22. Bxh4 Kd7 23. Bxd8 Rxd8 24. Bb3 Qe8 25. Qh5 Qh8 26. Qxh8 Rxh8 27. Ne3 Nd8 28. d4 c6 29. dxe5 dxe5 30. Rad1+ Kc7 31. f3 1/2-1/2

