[Event "American Continental Rapid 18th"]
[Site "Medellin"]
[Date "2024.06.01"]
[Round "8"]
[White "Alzate Arango, John Ubaldo"]
[Black "Cruz, David1"]
[Result "1-0"]
[ECO "C48"]
[PlyCount "191"]
[EventDate "2024.06.01"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[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. Bb5 Nf6 4. Nc3 Nd4 5. 0-0 Nxb5 6. Nxb5 c6 7. Nc3 d6 8. d4 exd4 9. Nxd4 Be7 10. Re1 0-0 11. h3 Re8 12. Bf4 Bf8 13. Qf3 Nd7 14. Rad1 Ne5 15. Qg3 Qf6 16. Kh1 g6 17. Bg5 Qg7 18. Nf3 Nc4 19. Bc1 Be6 20. Nd4 Rad8 21. Nxe6 Rxe6 22. f3 Rde8 23. Qf2 a5 24. Rd4 b5 25. b3 Nb6 26. Rd3 Nd7 27. Be3 b4 28. Bd4 Qh6 29. Ne2 Ne5 30. Rdd1 Be7 31. Be3 Qg7 32. Bd4 c5 33. Ba1 Qh6 34. Kh2 Bh4 35. g3 Bd8 36. Nf4 Rf6 37. Nd5 Rxf3 38. Qg2 Ng4+ 39. Kg1 Ne3 40. Qxf3 Nxc2 41. Nf6+ Kf8 42. Nd7+ Ke7 43. Qf6+ Kxd7 44. Qxf7+ Re7 45. Qd5 Nxe1 46. Rxe1 Qf8 47. Rf1 Qe8 48. Rf6 Re6 49. Rxe6 Qxe6 50. Qxe6+ Kxe6 51. Kf2 Bg5 52. Ke2 h5 53. g4 hxg4 54. hxg4 d5 55. exd5+ Kxd5 56. Kd3 Be7 57. Bg7 Bd6 58. Bf6 Ke6 59. Bg5 Ke5 60. Bd2 Kd5 61. Bg5 Be5 62. Bd8 Bd4 63. Bxa5 Ke5 64. Bd8 Kf4 65. g5 Kf3 66. Kc4 Be3 67. Be7 Kf4 68. Bxc5 Bxc5 69. Kxc5 Kxg5 70. Kxb4 Kf4 71. Kc4 g5 72. b4 g4 73. b5 g3 74. b6 g2 75. b7 g1Q 76. b8Q+ Ke4 77. Qb7+ Ke5 78. Qe7+ Kf5 79. Qd7+ Ke5 80. Qe7+ Kf5 81. Qc5+ Qxc5+ 82. Kxc5 Ke5 83. a4 Ke6 84. Kc6 Ke7 85. Kc7 Ke6 86. a5 Kd5 87. a6 Kc5 88. a7 Kb5 89. a8Q Kb4 90. Kc6 Kb3 91. Kc5 Kc2 92. Kd4 Kb3 93. Qa5 Kc2 94. Qa2+ Kd1 95. Kd3 Ke1 96. Qe2# 1-0

[Event "American Continental Rapid 18th"]
[Site "Medellin"]
[Date "2024.06.01"]
[Round "7"]
[White "Alzate Arango, John Ubaldo"]
[Black "Zapata, Olga Maria"]
[Result "1/2-1/2"]
[ECO "D00"]
[BlackElo "1729"]
[PlyCount "120"]
[EventDate "2024.06.01"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 4. Bd3 Bxd3 5. Qxd3 c6 6. Nf3 Nbd7 7. 0-0 e6 8. c4 dxc4 9. Qxc4 Nb6 10. Qb3 Bd6 11. Ne5 0-0 12. Nd2 Nh5 13. Bg3 Nxg3 14. hxg3 Bxe5 15. Ne4 Bc7 16. Nc5 Qd5 17. Nxb7 Qxb3 18. axb3 e5 19. Rfc1 exd4 20. exd4 Nd5 21. Rxc6 Bb6 22. Nc5 Ne7 23. Rd6 Rfd8 24. Rxd8+ Rxd8 25. Re1 Ng6 26. Re4 h6 27. Na4 Bxd4 28. Nc3 Bb6 29. Re2 Rd4 30. Na4 Rd1+ 31. Kh2 Bd4 32. f3 Kh7 33. Nc3 Rd3 34. Rc2 Be5 35. Kh3 Ne7 36. b4 Nf5 37. Nb5 a6 38. Nc7 Rd6 39. b5 axb5 40. Nxb5 Rb6 41. Rc5 Re6 42. f4 Bxb2 43. Rxf5 Bf6 44. Nc7 Re7 45. Nd5 Re6 46. Nxf6+ gxf6 47. Kg4 Re2 48. Kh3 Kg6 49. g4 Re3+ 50. g3 Re1 51. Kg2 h5 52. Rxh5 Re2+ 53. Kf3 Re7 54. Ra5 Rc7 55. Ra3 Re7 56. Re3 Rb7 57. Rc3 Re7 58. Re3 Rc7 59. Re8 Rc3+ 60. Re3 Rc7 1/2-1/2

[Event "American Continental Rapid 18th"]
[Site "Medellin"]
[Date "2024.06.01"]
[Round "9"]
[White "Diaz Padilla, Richard"]
[Black "Alzate Arango, John Ubaldo"]
[Result "1-0"]
[ECO "A12"]
[WhiteElo "1799"]
[PlyCount "61"]
[EventDate "2024.06.01"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. Nf3 c6 2. c4 d5 3. e3 Bf5 4. b3 Nf6 5. Bb2 e6 6. Nc3 Bd6 7. Be2 Nbd7 8. Nh4 Bg6 9. Nxg6 hxg6 10. h3 Rc8 11. Qc2 Qe7 12. a3 a6 13. b4 dxc4 14. Bxc4 Nb6 15. Be2 Nbd5 16. 0-0 0-0 17. d4 Nh5 18. Ne4 Bc7 19. Rfe1 Qh4 20. Nd2 Qe7 21. Rad1 Nhf6 22. Bc4 Qd6 23. Nf3 Rfd8 24. e4 Nf4 25. e5 Qe7 26. exf6 Qxf6 27. d5 Nxh3+ 28. Kf1 Qf4 29. dxe6 b5 30. exf7+ Kf8 31. Bb3 1-0

[Event "American Continental Rapid 18th"]
[Site "Medellin"]
[Date "2024.06.01"]
[Round "2"]
[White "Finley Rosero, Karol Valentina"]
[Black "Alzate Arango, John Ubaldo"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "1823"]
[PlyCount "80"]
[EventDate "2024.06.01"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[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. Nf3 Bg4 7. Be2 Be7 8. Bf4 0-0 9. 0-0 Nd7 10. Re1 Re8 11. c3 Nb6 12. Qc2 Nd5 13. Bg3 Bd6 14. Bxd6 Qxd6 15. h3 Bh5 16. Nh2 Bxe2 17. Rxe2 Re6 18. Rae1 Rae8 19. Ng4 Nf4 20. Rxe6 fxe6 21. Qd2 Kf7 22. Qe3 a6 23. Qf3 Ng6 24. Ne3 Kg8 25. Nc4 Qd7 26. Qg4 Nf8 27. h4 Qd5 28. b3 g6 29. Re3 b5 30. Nd2 Qf5 31. Qe2 Qc2 32. Qe1 Qxa2 33. Ne4 Kf7 34. Nd6+ Ke7 35. Nxe8 Kxe8 36. Qd1 Kd7 37. h5 a5 38. Rd3 a4 39. bxa4 Qxa4 40. Qd2 Qa1+ 1-0

[Event "American Continental Rapid 18th"]
[Site "Medellin"]
[Date "2024.06.01"]
[Round "1"]
[White "Lopez Gaviria, Alvaro Diego"]
[Black "Alzate Arango, John Ubaldo"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1971"]
[PlyCount "75"]
[EventDate "2024.06.01"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 c6 2. e4 d5 3. exd5 cxd5 4. Bd3 h6 5. Bf4 Nf6 6. Nd2 Nc6 7. c3 e6 8. Ngf3 Bd6 9. Ne5 Qc7 10. Qe2 Bd7 11. Bg3 Rf8 12. f4 0-0-0 13. b4 Ne8 14. 0-0 f5 15. Rae1 Nxe5 16. dxe5 Be7 17. Rc1 Kb8 18. Nb3 b6 19. Nd4 Rc8 20. Ba6 Rd8 21. Qc2 Bc8 22. Bd3 Bb7 23. a4 a6 24. Qe2 Rc8 25. Bxa6 Bxb4 26. Nxe6 Bc5+ 27. Bf2 Qe7 28. Bxc5 Rxc5 29. Nxc5 Qxc5+ 30. Kh1 Nc7 31. Bb5 Nxb5 32. Qxb5 Qxb5 33. axb5 Re8 34. Kg1 Re6 35. Rfd1 Kc7 36. c4 dxc4 37. Rxc4+ Kb8 38. Rd8+ 1-0

[Event "American Continental Rapid 18th"]
[Site "Medellin"]
[Date "2024.06.01"]
[Round "6"]
[White "Orrego Sucerquia, Tatiana"]
[Black "Alzate Arango, John Ubaldo"]
[Result "1-0"]
[ECO "A42"]
[WhiteElo "1777"]
[PlyCount "117"]
[EventDate "2024.06.01"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nc6 5. Nf3 Bg4 6. d5 Ne5 7. Be2 Bxf3 8. Bxf3 Nxc4 9. Qa4+ c6 10. Qxc4 Rc8 11. dxc6 bxc6 12. 0-0 Nf6 13. Bg5 0-0 14. Bxf6 Bxf6 15. Rfd1 Qc7 16. Rac1 Be5 17. h3 Rb8 18. b3 e6 19. Na4 c5 20. Nc3 Qa5 21. Rc2 Rb4 22. Qe2 Rfb8 23. Nb1 Bd4 24. Nd2 e5 25. Nc4 Qc7 26. Bg4 h5 27. Bf3 Rd8 28. Ne3 Bxe3 29. Qxe3 Kg7 30. a3 Rd4 31. Rxd4 exd4 32. Qxd4+ Kg8 33. Qd5 Qa5 34. a4 Kg7 35. e5 Qe1+ 36. Kh2 Qxe5+ 37. Qxe5+ dxe5 38. Rxc5 Rd3 39. Rb5 Rd4 40. Rxe5 Rb4 41. Rb5 Rxb5 42. axb5 Kf6 43. Kg3 Ke5 44. Bc6 g5 45. Be8 h4+ 46. Kg4 f6 47. Kf3 f5 48. g3 hxg3 49. fxg3 Kf6 50. h4 g4+ 51. Kf4 Ke6 52. h5 Ke7 53. Bg6 Kf6 54. Be8 Kg7 55. Kxf5 Kh6 56. Kf6 Kh7 57. Kg5 Kg7 58. Kxg4 Kf8 59. h6 1-0

[Event "American Continental Rapid 18th"]
[Site "Medellin"]
[Date "2024.06.01"]
[Round "5"]
[White "Ortiz Torres, John Jairo"]
[Black "Alzate Arango, John Ubaldo"]
[Result "0-1"]
[ECO "A41"]
[PlyCount "42"]
[EventDate "2024.06.01"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. h3 b6 5. Nf3 Bb7 6. e4 Nc6 7. a3 Nf6 8. Bg5 0-0 9. h4 h6 10. Be3 Kh7 11. Bd3 e5 12. d5 Ne7 13. Nh2 Bc8 14. Be2 a6 15. g4 Nfg8 16. Qd2 f5 17. gxf5 gxf5 18. Rg1 f4 19. Rxg7+ Kxg7 20. Bxf4 Rxf4 21. 0-0-0 Rxh4 0-1

[Event "American Continental Blitz 18th"]
[Site "Medellin"]
[Date "2024.05.29"]
[Round "8"]
[White "Alzate Arango, John Ubaldo"]
[Black "Carvajal Barreto, Gian Lucas"]
[Result "1-0"]
[ECO "D00"]
[BlackElo "1440"]
[PlyCount "7"]
[EventDate "2024.05.29"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Bf5 3. e3 Nc6 4. Bb5 1-0

[Event "American Continental Blitz 18th"]
[Site "Medellin"]
[Date "2024.05.29"]
[Round "4"]
[White "Alzate Arango, John Ubaldo"]
[Black "Vilotijevic, Lazar"]
[Result "0-1"]
[ECO "A45"]
[BlackElo "1998"]
[PlyCount "90"]
[EventDate "2024.05.29"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 c5 3. c3 Qb6 4. Qb3 Qxb3 5. axb3 cxd4 6. Be5 dxc3 7. bxc3 d6 8. Bxf6 gxf6 9. e3 f5 10. Bc4 Bg7 11. Ne2 Nc6 12. 0-0 Ne5 13. Bb5+ Bd7 14. Bxd7+ Kxd7 15. Ra2 a6 16. c4 Rhc8 17. Nd4 e6 18. Nd2 Ke7 19. N2f3 Nxf3+ 20. Nxf3 b5 21. cxb5 axb5 22. Rxa8 Rxa8 23. Nd4 Bxd4 24. exd4 Ra2 25. g3 Rb2 26. Rc1 Rxb3 27. Rc7+ Kf6 28. Rb7 Rb2 29. Kg2 b4 30. Kf3 b3 31. Ke3 Rb1 32. h4 b2 33. Ke2 e5 34. dxe5+ Kxe5 35. f4+ Kd4 36. Kd2 Rh1 37. Rxb2 Rh2+ 38. Kc1 Rxb2 39. Kxb2 Ke3 40. Kc1 Kf3 41. Kd2 Kxg3 42. Kd3 Kxf4 43. Kd4 Kg3 44. Kd5 f4 45. Kxd6 f3 0-1

[Event "American Continental Blitz 18th"]
[Site "Medellin"]
[Date "2024.05.29"]
[Round "9"]
[White "Cruz, David1"]
[Black "Alzate Arango, John Ubaldo"]
[Result "1-0"]
[ECO "B12"]
[PlyCount "69"]
[EventDate "2024.05.29"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[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. e5 Bf5 4. Nf3 e6 5. c3 Nd7 6. Be2 c5 7. 0-0 Rc8 8. Qa4 a6 9. Be3 cxd4 10. Nxd4 Ne7 11. f4 Bg6 12. Nd2 Nf5 13. Nxf5 Bxf5 14. g4 Be4 15. Nxe4 dxe4 16. Qxe4 Nc5 17. Qc2 Qc7 18. Rad1 Be7 19. f5 Qxe5 20. Bf4 Qe4 21. Qd2 0-0 22. Bf3 Qa4 23. b4 Rcd8 24. Qe2 Qb5 25. Qe3 Bh4 26. bxc5 Qb2 27. fxe6 fxe6 28. Qxe6+ Kh8 29. Rxd8 Rxd8 30. Bd5 Qxc3 31. Be3 h6 32. Qe4 Qb2 33. Bd4 Qa3 34. Qe5 Rxd5 35. Qxg7# 1-0

[Event "American Continental Blitz 18th"]
[Site "Medellin"]
[Date "2024.05.29"]
[Round "1"]
[White "Mendez Machado, Andre"]
[Black "Alzate Arango, John Ubaldo"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2106"]
[PlyCount "87"]
[EventDate "2024.05.29"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[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. f3 e6 4. Nc3 Nd7 5. a3 h6 6. h4 b6 7. Be3 Bb7 8. Qd2 Rc8 9. e5 c5 10. f4 cxd4 11. Bxd4 Bc5 12. Nf3 Ne7 13. Bd3 Nc6 14. Nb5 Be7 15. 0-0-0 a6 16. Nd6+ Bxd6 17. exd6 Nxd4 18. Nxd4 Nc5 19. Rhe1 Nxd3+ 20. Qxd3 Qxd6 21. f5 e5 22. Qg3 0-0 23. Qxe5 Qxe5 24. Rxe5 Rfe8 25. Rde1 Rxe5 26. Rxe5 Rc7 27. Re8+ Kh7 28. Kd2 g6 29. f6 a5 30. Re7 Rc8 31. Rxb7 Re8 32. Rxf7+ Kg8 33. Re7 Rxe7 34. fxe7 Kf7 35. Nc6 Ke8 36. Kd3 g5 37. hxg5 hxg5 38. Kd4 b5 39. Kxd5 b4 40. Ke6 bxa3 41. bxa3 a4 42. Nd4 g4 43. Nf5 g3 44. Nd6# 1-0

[Event "American Continental Blitz 18th"]
[Site "Medellin"]
[Date "2024.05.29"]
[Round "5"]
[White "Ortiz Torres, John Jairo"]
[Black "Alzate Arango, John Ubaldo"]
[Result "1-0"]
[ECO "D11"]
[PlyCount "53"]
[EventDate "2024.05.29"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 c6 2. c4 d5 3. Nc3 Bf5 4. Nf3 e6 5. a3 Nf6 6. Bg5 Be7 7. h4 Nbd7 8. e3 a6 9. h5 h6 10. Bh4 Ne4 11. Bxe7 Qxe7 12. Bd3 Nxc3 13. bxc3 Bxd3 14. Qxd3 b5 15. c5 a5 16. e4 a4 17. 0-0 0-0 18. Rfe1 Qf6 19. exd5 exd5 20. Re3 Rfe8 21. Rae1 Re6 22. Rxe6 fxe6 23. Re3 Re8 24. Qe2 Qf5 25. Qe1 Nf6 26. Re5 Qg4 27. Nh2 1-0

[Event "American Continental Blitz 18th"]
[Site "Medellin"]
[Date "2024.05.29"]
[Round "3"]
[White "Tobar Beltran, Carlos Andres"]
[Black "Alzate Arango, John Ubaldo"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2018"]
[PlyCount "57"]
[EventDate "2024.05.29"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. Nf3 c6 2. e4 d5 3. exd5 cxd5 4. d4 Bf5 5. Bd3 Bxd3 6. Qxd3 Nf6 7. 0-0 e6 8. Re1 Be7 9. Bf4 0-0 10. Nbd2 Nc6 11. c3 Rc8 12. Ne5 h6 13. Qh3 b5 14. Re3 Nh7 15. Rg3 Nxe5 16. Bxe5 Ng5 17. Qg4 f5 18. Qh5 Qe8 19. Qxe8 Rcxe8 20. f4 Ne4 21. Rxg7+ Kh8 22. Nxe4 dxe4 23. Rxe7+ Kg8 24. Rg7+ Kh8 25. Rxa7+ Kg8 26. a4 bxa4 27. R1xa4 Rc8 28. Rg7+ Kh8 29. Raa7 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.28"]
[Round "7"]
[White "Alzate Arango, John Ubaldo"]
[Black "Avella Munoz, Andrea"]
[Result "0-1"]
[ECO "D00"]
[BlackElo "1727"]
[PlyCount "60"]
[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 d5 2. Bf4 h5 3. c4 dxc4 4. Nc3 c6 5. e3 b5 6. Qf3 Bg4 7. Qe4 Nf6 8. Qc2 e6 9. f3 Bf5 10. Qd2 Bb4 11. Nge2 Nbd7 12. g3 Bd3 13. Nc1 Bg6 14. Bg2 h4 15. 0-0 hxg3 16. Bxg3 a6 17. a3 Ba5 18. b4 Bc7 19. Qf2 Rc8 20. Bxc7 Qxc7 21. Qg3 e5 22. f4 exd4 23. exd4 0-0 24. f5 Qxg3 25. hxg3 Bh5 26. a4 Rfe8 27. Kf2 Ng4+ 28. Kg1 Ne3 29. Re1 Nxg2 30. Kxg2 Rxe1 0-1

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.27"]
[Round "5"]
[White "Alzate Arango, John Ubaldo"]
[Black "Pena, Alcides"]
[Result "0-1"]
[ECO "D00"]
[BlackElo "1734"]
[PlyCount "40"]
[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 d5 2. Bf4 e6 3. e3 Nf6 4. Bd3 Bd6 5. Ne2 c5 6. c3 0-0 7. dxc5 Bxc5 8. Nd2 Bd6 9. Nf3 Qc7 10. Bg5 Nbd7 11. Qc2 a6 12. 0-0-0 b5 13. a3 Bb7 14. Ng3 Rfc8 15. e4 Qa5 16. Bxf6 Nxf6 17. e5 Bxa3 18. Kd2 Ne4+ 19. Bxe4 dxe4 20. Nxe4 b4 0-1

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.27"]
[Round "6"]
[White "Suaza Builes, Oscar A"]
[Black "Alzate Arango, John Ubaldo"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1684"]
[PlyCount "28"]
[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 c6 2. Bf4 d5 3. e3 Bf5 4. Nd2 e6 5. c4 Bd6 6. Bg3 Nf6 7. Ngf3 Bc7 8. Qb3 Bxg3 9. hxg3 Qc7 10. Nh4 Be4 11. Nxe4 Nxe4 12. Bd3 Qa5+ 13. Kf1 Nd2+ 14. Ke2 Nxb3 0-1

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.26"]
[Round "4"]
[White "Moreno Rios, Mateo"]
[Black "Alzate Arango, John Ubaldo"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "1780"]
[PlyCount "103"]
[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. Nf3 c6 2. d3 d5 3. g3 Bg4 4. Bg2 e6 5. Nbd2 Nf6 6. c3 Nbd7 7. 0-0 Qc7 8. e4 dxe4 9. dxe4 Ne5 10. Qc2 0-0-0 11. Nxe5 Qxe5 12. Re1 Qh5 13. b4 Bh3 14. a4 Bd6 15. Bh1 Rd7 16. Nc4 Bc7 17. Be3 a6 18. Nb6+ Bxb6 19. Bxb6 Re8 20. c4 Bg4 21. e5 Bf5 22. Qe2 Qxe2 23. Rxe2 Ng8 24. b5 Ne7 25. bxa6 bxa6 26. Bc5 Bd3 27. Rb2 Bxc4 28. Bd6 Rb7 29. Rab1 Rxb2 30. Rxb2 Bd5 31. Rb8+ Kd7 32. Rb7+ Kd8 33. Rb8+ Nc8 34. Rb7 h6 35. Rxf7 Nxd6 36. exd6 e5 37. Rxg7 e4 38. Kf1 e3 39. Bxd5 cxd5 40. f3 d4 41. Rg4 d3 42. Rd4 d2 43. Ke2 Kc8 44. Rh4 Kd7 45. Rxh6 Kc8 46. Rh7 Kd8 47. Rb7 Rh8 48. Rb1 Rh6 49. Kxe3 Rxh2 50. Rd1 Kd7 51. Rxd2 Rh1 52. Kf4 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.25"]
[Round "3"]
[White "Alzate Arango, John Ubaldo"]
[Black "Ng Mora, Joshua"]
[Result "1/2-1/2"]
[ECO "D02"]
[BlackElo "1779"]
[PlyCount "57"]
[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. Bf4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 d5 6. c3 Be7 7. Nbd2 0-0 8. Ne5 Nfd7 9. Qh5 f5 10. g4 Nxe5 11. Bxe5 Nd7 12. gxf5 Nxe5 13. dxe5 exf5 14. Bxf5 Rxf5 15. Qxf5 d4 16. Rg1 dxc3 17. bxc3 Qd5 18. e4 Qc5 19. Qe6+ Kh8 20. Qc4 Qa3 21. Qxc7 Ba6 22. c4 Rd8 23. Rg3 Qb4 24. Rd1 Rxd2 25. Rxd2 Qb1+ 26. Ke2 Qxe4+ 27. Kd1 Qb1+ 28. Ke2 Qe4+ 29. Kd1 1/2-1/2

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.24"]
[Round "1"]
[White "Acuna, Nelson David"]
[Black "Alzate Arango, John Ubaldo"]
[Result "1-0"]
[ECO "B18"]
[WhiteElo "1934"]
[PlyCount "57"]
[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 Bf5 5. Qd3 e6 6. Nf3 Nf6 7. Nxf6+ Qxf6 8. Qb3 Qe7 9. Bd2 Qc7 10. Bd3 Bxd3 11. Qxd3 Nd7 12. c4 Bd6 13. g3 0-0-0 14. 0-0 Qb8 15. b4 h5 16. c5 Bc7 17. b5 h4 18. bxc6 Nxc5 19. Qc4 Ne4 20. Rab1 Nxd2 21. Nxd2 hxg3 22. Rxb7 gxf2+ 23. Kg2 Rxh2+ 24. Kf3 Rh3+ 25. Ke2 Qxb7 26. cxb7+ Kxb7 27. Rxf2 Rh2 28. Rxh2 Bxh2 29. Nb3 1-0

