[Event "Cali Masificacion op U2050"]
[Site "Cali"]
[Date "2021.12.29"]
[Round "6"]
[White "Geurts, Harrie Tulio"]
[Black "Lopez Idarraga, Daniel Eduardo"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1792"]
[BlackElo "2006"]
[PlyCount "138"]
[EventDate "2021.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bc4 e6 4. Nc3 Nf6 5. d3 a6 6. a3 d6 7. Bg5 Be7 8. Qd2 h6 9. Bf4 b5 10. Ba2 Bb7 11. h3 0-0 12. 0-0 Rc8 13. Ne2 Nd7 14. c3 Nce5 15. Nxe5 Nxe5 16. Rad1 Qb6 17. Be3 Qc6 18. f4 Nd7 19. f5 exf5 20. Rxf5 c4 21. Nf4 Nf6 22. Nd5 Nxd5 23. exd5 Qd7 24. Rdf1 g6 25. R5f2 Bh4 26. Re2 Bxd5 27. dxc4 Bxc4 28. Bxc4 Rxc4 29. Bxh6 Rfc8 30. Bg5 Qa7+ 31. Kh1 Qc5 32. Bxh4 Rxh4 33. Qe1 Qc4 34. Re8+ Rxe8 35. Qxe8+ Kg7 36. Qe1 Rh5 37. Qd1 Rd5 38. Qe1 Re5 39. Qd1 a5 40. Re1 a4 41. Qd2 Qe6 42. Rd1 Re2 43. Qd4+ Qe5 44. Kg1 Rxb2 45. Qxd6 Qxd6 46. Rxd6 Rb3 47. Rd5 Rxa3 48. Rxb5 Rxc3 49. Ra5 a3 50. Kh2 Kf6 51. h4 Ke6 52. Kg1 Kd6 53. Kh2 Kc6 54. Ra7 Kb6 55. Rxf7 a2 56. Rf1 Ra3 57. Ra1 Kc5 58. g3 Kb4 59. Kh3 Kb3 60. Kg4 Kb2 61. Rxa2+ Kxa2 62. Kf4 Kb3 63. Kg5 Kc4 64. g4 Rg3 65. Kf4 Rg1 66. h5 Kd5 67. hxg6 Ke6 68. Kg5 Rh1 69. g7 Kf7 0-1

[Event "Cali Masificacion op U2050"]
[Site "Cali"]
[Date "2021.12.29"]
[Round "7"]
[White "Triana Castro, Francisco Javier"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "D03"]
[WhiteElo "1613"]
[BlackElo "1792"]
[PlyCount "81"]
[EventDate "2021.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 d5 4. e3 Be7 5. Bxf6 Bxf6 6. Bd3 Nc6 7. c3 a6 8. Nbd2 e5 9. dxe5 Nxe5 10. Nxe5 Bxe5 11. 0-0 c6 12. Re1 Be6 13. Nb3 Qc7 14. g3 h5 15. Nd4 Bxd4 16. exd4 0-0-0 17. h4 Qd7 18. Re5 g6 19. Qd2 Rde8 20. Rae1 Bg4 21. Qf4 Re6 22. a3 Rhe8 23. f3 Rxe5 24. Rxe5 Rxe5 25. dxe5 Be6 26. Kf2 Kb8 27. b4 Qe7 28. Ke3 b6 29. Kd4 a5 30. Ke3 axb4 31. axb4 c5 32. bxc5 bxc5 33. Qa4 Qb7 34. Bb5 d4+ 35. cxd4 cxd4+ 36. Kf4 f6 37. Bc6 Qb2 38. exf6 Qd2+ 39. Ke5 Qe1+ 40. Be4 Qxg3+ 41. Kxe6 1-0

[Event "Cali Masificacion op U2050"]
[Site "Cali"]
[Date "2021.12.28"]
[Round "5"]
[White "Cortes Castro, Jhonny"]
[Black "Geurts, Harrie Tulio"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "2014"]
[BlackElo "1792"]
[PlyCount "94"]
[EventDate "2021.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 d5 2. e5 c5 3. f4 Nc6 4. Nf3 Bg4 5. Bb5 Qb6 6. c4 dxc4 7. Bxc4 e6 8. 0-0 Nge7 9. Nc3 Nf5 10. Qa4 Bxf3 11. Rxf3 Nfd4 12. Rg3 g6 13. d3 Be7 14. Rb1 0-0 15. Be3 Nf5 16. Rh3 Nxe3 17. Rxe3 Rad8 18. Qd1 Nd4 19. Qg4 h5 20. Qh3 Nf5 21. Rf3 Nd4 22. Rf2 Kg7 23. Ne4 Qb4 24. a3 Qa5 25. Kh1 b5 26. Ba2 Rd7 27. Rg1 Rh8 28. g4 hxg4 29. Qxg4 Rh4 30. Qg3 Nf5 31. Qf3 Qd8 32. Bb1 Qh8 33. Ng3 Nxg3+ 34. Rxg3 Rd4 35. Qb7 Qd8 36. Rgf3 a6 37. Qxa6 Qd5 38. b4 c4 39. Kg1 cxd3 40. Ba2 Qe4 41. Qxb5 d2 42. Bb3 Rg4+ 43. Rg3 d1Q+ 44. Bxd1 Rxd1+ 45. Rf1 Rxg3+ 46. hxg3 Qe3+ 47. Kg2 Rd2+ 0-1

[Event "Cali Masificacion op U2050"]
[Site "Cali"]
[Date "2021.12.28"]
[Round "4"]
[White "Geurts, Harrie Tulio"]
[Black "Velasquez Soto, Jair Andres"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "1792"]
[PlyCount "69"]
[EventDate "2021.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 Nc6 5. Be3 Nf6 6. Be2 0-0 7. f4 e5 8. fxe5 dxe5 9. d5 Nb8 10. Nf3 Re8 11. Bg5 Na6 12. 0-0 Qd6 13. Nd2 Qb6+ 14. Kh1 h6 15. Na4 Qd6 16. c5 Qd8 17. Bh4 Rb8 18. Rc1 c6 19. Bxf6 Bxf6 20. Nc4 Bg5 21. Rc3 cxd5 22. exd5 Nb4 23. Nd6 Re7 24. a3 Na6 25. b4 b6 26. Nxc8 Qxc8 27. d6 Re6 28. d7 Qc6 29. b5 Qe4 30. Rc4 Qe3 31. Rf3 Qd2 32. Qxd2 Bxd2 33. Rd3 Bg5 34. cxb6 axb6 35. Rc8+ 1-0

[Event "Cali Masificacion op U2050"]
[Site "Cali"]
[Date "2021.12.27"]
[Round "3"]
[White "Geurts, Harrie Tulio"]
[Black "Borrero, Alexander"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "1792"]
[BlackElo "1977"]
[PlyCount "20"]
[EventDate "2021.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. c4 g6 2. Nc3 Bg7 3. e3 c5 4. Nge2 Nc6 5. g3 h5 6. h4 d6 7. Bg2 Bf5 8. d3 Nf6 9. 0-0 0-0 10. Nf4 Rb8 0-1

[Event "Cali Masificacion op U2050"]
[Site "Cali"]
[Date "2021.12.27"]
[Round "2"]
[White "Zorrilla Cabal, Jose Miguel"]
[Black "Geurts, Harrie Tulio"]
[Result "0-1"]
[ECO "A00"]
[BlackElo "1792"]
[PlyCount "46"]
[EventDate "2021.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. c3 d5 2. d3 e5 3. g3 c6 4. Nf3 Bd6 5. h4 h6 6. Bg2 Nf6 7. a4 a5 8. Na3 Qe7 9. Nc2 e4 10. Nfd4 0-0 11. Ne3 Bc7 12. Qc2 Re8 13. Bh3 Bxh3 14. Rxh3 Qd7 15. Rh1 Na6 16. Nb3 exd3 17. Qxd3 Rad8 18. Qd4 Re4 19. Qd3 Rde8 20. Nd2 Nc5 21. Qc2 Rxe3 22. fxe3 Bxg3+ 23. Kd1 Ng4 0-1

[Event "Manizales Las Americas op-A"]
[Site "Manizales"]
[Date "2021.10.17"]
[Round "7"]
[White "Arango, Santiago"]
[Black "Geurts, Harrie Tulio"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2023"]
[BlackElo "1803"]
[PlyCount "64"]
[EventDate "2021.10.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. e4 d5 2. Nc3 d4 3. Nce2 c5 4. d3 Nc6 5. f4 e5 6. Nf3 Bd6 7. g3 Bg4 8. Neg1 exf4 9. gxf4 Be7 10. Be2 Bh4+ 11. Kf1 Nh6 12. c3 f5 13. e5 Qe7 14. h3 Bxf3 15. Nxf3 0-0-0 16. Rg1 Rhg8 17. a3 Nf7 18. Bd2 h6 19. Qa4 g5 20. Nxh4 gxh4 21. Kf2 Nfxe5 22. fxe5 Qxe5 23. Bf3 Qh2+ 24. Rg2 Rxg2+ 25. Bxg2 Qg3+ 26. Kf1 Qxd3+ 27. Ke1 dxc3 28. Bxc3 Re8+ 29. Kf2 Qe3+ 30. Kf1 Qe2+ 31. Kg1 Rg8 32. Qxc6+ bxc6 0-1

[Event "Manizales Las Americas op-A"]
[Site "Manizales"]
[Date "2021.10.17"]
[Round "8"]
[White "Lopez Idarraga, Daniel Eduardo"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "E46"]
[WhiteElo "2032"]
[BlackElo "1803"]
[PlyCount "145"]
[EventDate "2021.10.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nge2 Bb7 6. a3 Be7 7. Nf4 0-0 8. Bd3 d5 9. cxd5 exd5 10. 0-0 Nbd7 11. Bd2 c5 12. Rc1 Rc8 13. Qe2 Bd6 14. Nh5 Re8 15. dxc5 bxc5 16. Ng3 d4 17. Na4 Ne5 18. Bf5 d3 19. Qd1 Ned7 20. Bxd3 Bxg3 21. hxg3 Ne5 22. Bf5 Qd5 23. e4 Nxe4 24. Bf4 Nd2 25. Bh3 Rcd8 26. Bxd2 Qxd2 27. Qxd2 Rxd2 28. Rfe1 Rdd8 29. Nxc5 Bc8 30. Bxc8 Rxc8 31. b4 g6 32. Rcd1 Nc4 33. a4 Rxe1+ 34. Rxe1 a5 35. Rc1 Nb2 36. Rb1 axb4 37. Rxb2 Rxc5 38. Rxb4 Rc1+ 39. Kh2 Kg7 40. g4 Rc3 41. f3 Ra3 42. g5 h6 43. gxh6+ Kxh6 44. Kg3 Kg5 45. Rb5+ f5 46. Ra5 Rb3 47. Ra8 Ra3 48. a5 f4+ 49. Kh2 Ra2 50. a6 Ra1 51. Ra7 Ra2 52. Kg1 Ra1+ 53. Kf2 Ra2+ 54. Kf1 Ra1+ 55. Ke2 Ra2+ 56. Kd3 Rxg2 57. Rf7 Rf2 58. Ke4 Re2+ 59. Kd5 Re3 60. a7 Ra3 61. Kc6 Kh5 62. Kb7 Rb3+ 63. Kc8 Ra3 64. Kb8 g5 65. Rh7+ Kg6 66. Rh8 Kg7 67. Rc8 Kg6 68. a8Q Rxa8+ 69. Kxa8 Kh5 70. Rh8+ Kg6 71. Rh1 Kf5 72. Rg1 Kg6 73. Rg4 1-0

[Event "Manizales Las Americas op-A"]
[Site "Manizales"]
[Date "2021.10.16"]
[Round "5"]
[White "Geurts, Harrie Tulio"]
[Black "Lopez Rayo, Isabella"]
[Result "0-1"]
[ECO "A12"]
[WhiteElo "1803"]
[BlackElo "1748"]
[PlyCount "76"]
[EventDate "2021.10.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 g6 3. e3 Bg7 4. Nf3 d5 5. c4 c6 6. cxd5 cxd5 7. Bb5+ Bd7 8. Bxd7+ Nbxd7 9. 0-0 0-0 10. d3 Rc8 11. Qd2 Re8 12. Ne5 Nxe5 13. Bxe5 Ne4 14. Qb2 Bxe5 15. Qxe5 Nc5 16. Rd1 Nxd3 17. Qd4 Nc5 18. b4 e5 19. Qb2 Ne4 20. f3 Nf6 21. Nc3 Qb6 22. Nxd5 Nxd5 23. Rxd5 Qxe3+ 24. Qf2 Rc1+ 25. Rd1 Rxa1 26. Qxe3 Rxd1+ 27. Kf2 b6 28. Qe2 Rd4 29. a3 f6 30. Qa6 Re7 31. b5 Rc7 32. Kg3 Rd2 33. Qa4 Rcc2 34. Qb3+ Kg7 35. f4 e4 36. Kh4 Rxg2 37. h3 Rc5 38. f5 Rxf5 0-1

[Event "Manizales Las Americas op-A"]
[Site "Manizales"]
[Date "2021.10.16"]
[Round "6"]
[White "Geurts, Harrie Tulio"]
[Black "Shaffer, Alexander"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1803"]
[BlackElo "1774"]
[PlyCount "132"]
[EventDate "2021.10.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. a3 c5 4. e3 cxd4 5. exd4 d5 6. Nf3 Be7 7. Nc3 0-0 8. cxd5 Nxd5 9. Be2 Nc6 10. 0-0 b6 11. Qb3 Na5 12. Qc2 Bb7 13. Bd2 Rc8 14. Rac1 Nf6 15. Be3 Nc4 16. Nd2 Nxe3 17. fxe3 Nd5 18. Qd3 Bg5 19. Nxd5 Bxd5 20. Bf3 Qd7 21. Be4 f5 22. Bxd5 Qxd5 23. Nf3 Bf6 24. Qa6 Rxc1 25. Rxc1 Qb3 26. Qe2 g6 27. Rc3 Qd5 28. Qc2 Rf7 29. Rc8+ Kg7 30. Rc7 Rd7 31. Kf2 g5 32. Rxd7+ Qxd7 33. Qc4 g4 34. Ne1 f4 35. Nc2 fxe3+ 36. Kxe3 Qb7 37. Qe2 Bg5+ 38. Kf2 Qf7+ 39. Ke1 h5 40. Qe5+ Kg6 41. Nb4 Bf4 42. Qe4+ Qf5 43. Qxf5+ Kxf5 44. g3 a5 45. Nc2 Bc1 46. b3 Ke4 47. Ke2 Bb2 48. Ne3 Bxd4 49. Nc4 Bc5 50. b4 axb4 51. axb4 Bd4 52. Nd2+ Kd5 53. Kd3 Bg1 54. Nc4 b5 55. Na3 Kc6 56. Ke4 Bxh2 57. Kf4 e5+ 58. Kg5 Bxg3 59. Kxh5 Be1 60. Kxg4 Bxb4 61. Nc2 Bc3 62. Kf5 Kd5 63. Ne3+ Kd4 64. Ng4 e4 65. Kf4 Bd2+ 66. Kg3 b4 0-1

[Event "Manizales Las Americas op-A"]
[Site "Manizales"]
[Date "2021.10.15"]
[Round "4"]
[White "Araque, Rafael"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2243"]
[BlackElo "1803"]
[PlyCount "81"]
[EventDate "2021.10.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 c6 3. Bg2 d5 4. Nf3 Bf5 5. 0-0 h6 6. c4 e6 7. Nc3 Bd6 8. Qb3 Qc8 9. Ne5 dxc4 10. Nxc4 Bc7 11. e4 Bh7 12. e5 Nd5 13. Ne4 Bxe4 14. Bxe4 0-0 15. f4 Nb6 16. f5 Nxc4 17. Qxc4 exf5 18. Bxf5 Qd8 19. Be3 Na6 20. Rad1 Bb6 21. Bb1 h5 22. Qd3 g6 23. Rf6 Qe7 24. Qb3 Kg7 25. Rdf1 Nb4 26. e6 fxe6 27. Rxg6+ Kh8 28. Rh6+ Kg8 29. Rxf8+ Rxf8 30. Rxe6 Qf7 31. Rg6+ Kh8 32. Rh6+ Kg8 33. Qxf7+ Rxf7 34. Rxh5 Nd5 35. Bf2 Rxf2 36. Kxf2 Bxd4+ 37. Ke2 Bxb2 38. Bc2 Bd4 39. Bb3 Bg1 40. Bxd5+ cxd5 41. Kf1 1-0

[Event "Manizales Las Americas op-A"]
[Site "Manizales"]
[Date "2021.10.15"]
[Round "3"]
[White "Manrique Ochoa, Fernando"]
[Black "Geurts, Harrie Tulio"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2056"]
[BlackElo "1803"]
[PlyCount "117"]
[EventDate "2021.10.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. Nb5 Qd8 5. Nf3 c6 6. Nc3 Nf6 7. d4 Bg4 8. Be3 e6 9. a3 Bd6 10. h3 Bh5 11. g4 Bg6 12. Nh4 Qc7 13. Bg2 Nbd7 14. Nxg6 hxg6 15. Qf3 Nb6 16. 0-0 0-0-0 17. b4 Nbd5 18. Nxd5 Nxd5 19. c4 Nxe3 20. fxe3 f5 21. c5 Bh2+ 22. Kh1 Qg3 23. Qxg3 Bxg3 24. Rf3 Bc7 25. Kg1 f4 26. Re1 Rhe8 27. exf4 Rxd4 28. f5 gxf5 29. gxf5 e5 30. Rg3 Re7 31. Re4 Rd1+ 32. Kf2 Rf7 33. Rf3 Rd2+ 34. Kg3 Rd4 35. Rxd4 exd4+ 36. Kg4 Be5 37. Rd3 Bf6 38. a4 Re7 39. b5 Kc7 40. bxc6 bxc6 41. Bf3 Re1 42. Bd1 Be5 43. h4 Rg1+ 44. Kf3 Rh1 45. Ke4 Bf6 46. h5 Rh2 47. Rg3 Rh4+ 48. Rg4 Rh1 49. Bf3 Re1+ 50. Kf4 d3 51. Rg6 d2 52. h6 Be5+ 53. Kg4 d1Q 54. Bxd1 Rxd1 55. hxg7 Rg1+ 56. Kh5 Rh1+ 57. Kg5 Rg1+ 58. Kh6 Rh1+ 59. Kg5 1/2-1/2

[Event "Manizales Las Americas op-A"]
[Site "Manizales"]
[Date "2021.10.14"]
[Round "1"]
[White "Gallego, Julian Andres"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "2182"]
[BlackElo "1803"]
[PlyCount "123"]
[EventDate "2021.10.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 e6 5. g3 Bd6 6. Bg2 Nbd7 7. 0-0 0-0 8. Re1 b6 9. e4 dxe4 10. Ng5 Bb7 11. Ncxe4 Bb4 12. Re2 h6 13. a3 Be7 14. Nxf6+ Nxf6 15. Ne4 Nxe4 16. Bxe4 Bg5 17. f4 Bf6 18. Be3 Qc7 19. Qb3 Rad8 20. Rd1 Rfe8 21. Red2 Rd7 22. Bf2 Red8 23. Qf3 g6 24. b4 a6 25. g4 Bg7 26. f5 exf5 27. gxf5 Qd6 28. Bg3 Qe7 29. d5 cxd5 30. Bxd5 Bxd5 31. Rxd5 gxf5 32. Qxf5 Rxd5 33. cxd5 Qe3+ 34. Kh1 Qxa3 35. Bc7 Qb3 36. Qd3 Qxd3 37. Rxd3 Rd7 38. Bxb6 Bf8 39. Bc5 Bd6 40. Kg2 Kg7 41. Bd4+ f6 42. Bc3 Rb7 43. Rd4 Kf7 44. Rh4 Rb5 45. Rxh6 Be5 46. Bxe5 fxe5 47. Rxa6 Rxd5 48. Ra2 Ke6 49. Rb2 Kd6 50. b5 Kc7 51. b6+ Kb7 52. Kg3 Rd4 53. h4 Rf4 54. h5 Rd4 55. h6 Rd6 56. Rh2 Rd8 57. h7 Rh8 58. Rh6 Ka6 59. Kf3 e4+ 60. Kxe4 Re8+ 61. Kf5 Rh8 62. Kg6 1-0

[Event "Manizales Las Americas op-A"]
[Site "Manizales"]
[Date "2021.10.14"]
[Round "2"]
[White "Geurts, Harrie Tulio"]
[Black "Juarez Flores, Gustavo Enrique"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1803"]
[BlackElo "2108"]
[PlyCount "94"]
[EventDate "2021.10.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 204 Extra"]
[Source "ChessBase"]
[SourceDate "2021.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.11.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. Bd3 d5 8. exd5 Nxd5 9. Bd2 Nxc3 10. bxc3 Bd6 11. Qe2 0-0 12. 0-0 Qh4 13. Qe4 Qxe4 14. Bxe4 Be6 15. Rfd1 Ba3 16. Rab1 Rfd8 17. Be1 Rxd1 18. Rxd1 a5 19. Rb1 f5 20. Bd3 a4 21. Nd2 Bc5 22. Bc4 Bxc4 23. Nxc4 b6 24. Kf1 Kf7 25. f3 e4 26. fxe4 fxe4 27. Bf2 Ke6 28. Bxc5 bxc5 29. Rb6 Kd5 30. Ne3+ Kd6 31. Rb7 Ra7 32. Rxa7 Nxa7 33. Ke2 Nb5 34. Kd2 Ke5 35. g3 h5 36. h4 Na3 37. Kc1 Nb5 38. Kd2 Nd6 39. Ke2 g6 40. Ke1 Nb5 41. Kd2 Nd6 42. Ke2 Ke6 43. Kd2 Nf5 44. Nf1 Kd5 45. Ke2 Kc4 46. Nd2+ Kxc3 47. Nxe4+ Kxc2 0-1

[Event "Palmira op"]
[Site "Palmira"]
[Date "2018.09.23"]
[Round "7"]
[White "Finley Rosero, Karol Valentina"]
[Black "Geurts, Harrie Tulio"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1500"]
[BlackElo "1786"]
[PlyCount "48"]
[EventDate "2018.09.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 c6 5. h3 Nf6 6. Nf3 Bf5 7. g4 Bg6 8. Bg2 e6 9. Qe2 Nbd7 10. Ne5 Qc7 11. Bf4 Bd6 12. 0-0-0 0-0-0 13. Bg3 Rhe8 14. Rhe1 Bxe5 15. dxe5 Nd5 16. Nxd5 cxd5 17. Bxd5 Nc5 18. Bg2 Nd3+ 19. Rxd3 Bxd3 20. Qd2 Be4 21. Qe2 Bxg2 22. f3 Bxh3 23. Rh1 Bxg4 24. fxg4 h6 0-1

[Event "Palmira op"]
[Site "Palmira"]
[Date "2018.09.22"]
[Round "4"]
[White "Geurts, Harrie Tulio"]
[Black "Diaz Recalde, Nestor"]
[Result "1-0"]
[ECO "D83"]
[WhiteElo "1786"]
[BlackElo "1793"]
[PlyCount "47"]
[EventDate "2018.09.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 g6 4. Bf4 Bg7 5. e3 0-0 6. h3 c6 7. a3 Nbd7 8. Nf3 Re8 9. Ne5 a6 10. Be2 Nxe5 11. Bxe5 dxc4 12. Bxc4 b5 13. Ba2 Bb7 14. 0-0 e6 15. Rc1 Rc8 16. Bxf6 Qxf6 17. Ne4 Qe7 18. Nc5 Red8 19. Qf3 Ba8 20. Rc2 a5 21. Rfc1 Qf6 22. Qg4 h5 23. Qe4 e5 24. dxe5 1-0

[Event "Palmira op"]
[Site "Palmira"]
[Date "2018.09.22"]
[Round "5"]
[White "Navia Alvarez, Edwin Adrian"]
[Black "Geurts, Harrie Tulio"]
[Result "1/2-1/2"]
[ECO "D78"]
[WhiteElo "2104"]
[BlackElo "1786"]
[PlyCount "39"]
[EventDate "2018.09.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. 0-0 Bg7 5. d4 0-0 6. c4 c6 7. Nc3 Nbd7 8. b3 a6 9. Bb2 Qc7 10. cxd5 cxd5 11. Rc1 Qd6 12. Nd2 Rb8 13. e4 Nxe4 14. Ndxe4 dxe4 15. Nxe4 Qb6 16. Qd2 Qd8 17. Rfe1 b6 18. d5 Bxb2 19. Qxb2 Bb7 20. Red1 1/2-1/2

[Event "Palmira op"]
[Site "Palmira"]
[Date "2018.09.21"]
[Round "3"]
[White "Aza, Saulo"]
[Black "Geurts, Harrie Tulio"]
[Result "0-1"]
[ECO "B01"]
[BlackElo "1786"]
[PlyCount "99"]
[EventDate "2018.09.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. Nf3 Nf6 5. Be2 a6 6. 0-0 g6 7. d4 Bg7 8. Ne5 0-0 9. Nc4 Qd8 10. a4 c6 11. Bf3 Be6 12. Ne3 Nd5 13. Ne2 Qc8 14. c3 Nd7 15. Nxd5 Bxd5 16. Bxd5 cxd5 17. Bf4 Nf6 18. Be5 Ng4 19. Bxg7 Kxg7 20. h3 Nf6 21. Qd3 Qc7 22. Qg3 Qb6 23. b4 Qc6 24. f3 Rac8 25. Rfc1 Rfe8 26. Qe5 Red8 27. Nf4 Qd6 28. Nd3 Qxe5 29. dxe5 Nd7 30. f4 e6 31. a5 Rc4 32. g3 Rdc8 33. Ra3 d4 34. Kf2 dxc3 35. Ke3 f5 36. exf6+ Nxf6 37. Nc5 Nd5+ 38. Kd3 Rxb4 39. Nxe6+ Kg8 40. g4 Rb2 41. Ke4 Rd2 42. f5 Rc4+ 43. Ke5 c2 44. fxg6 Nc3 45. gxh7+ Kxh7 46. Ng5+ Kg6 47. h4 Rd5+ 48. Ke6 Rc6+ 49. Ke7 Nb5 50. Ra2 0-1

[Event "Palmira op"]
[Site "Palmira"]
[Date "2018.09.21"]
[Round "2"]
[White "Geurts, Harrie Tulio"]
[Black "Quinonez Garcia, Santiago"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "1786"]
[BlackElo "2218"]
[PlyCount "86"]
[EventDate "2018.09.20"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 c5 3. g3 Bg4 4. Bg2 Nc6 5. Nf3 d4 6. 0-0 e5 7. d3 Qd7 8. c3 Bh3 9. Nbd2 Bxg2 10. Kxg2 Nf6 11. Rc1 Be7 12. Re1 0-0 13. a3 Rfe8 14. h3 Rad8 15. a4 a6 16. Kh2 Bf8 17. Qc2 Nd5 18. Nc4 b5 19. axb5 axb5 20. Ncd2 Re6 21. cxd4 cxd4 22. Ne4 Rh6 23. h4 Bb4 24. Rh1 f5 25. Neg5 Rf6 26. Ra1 h6 27. Nh3 Bc3 28. Rhg1 Re8 29. Ne1 e4 30. Ng2 exd3 31. exd3 Ncb4 32. Qb1 Re2 33. Ra8+ Kh7 34. Bc1 Qb7 35. Rd8 Ra6 36. Bf4 Raa2 37. Qd1 Nf6 38. Rf1 Ng4+ 39. Kg1 Qf3 40. Ne1 Bxe1 41. Rxe1 Nxd3 42. Rf1 Ngxf2 43. Nxf2 Nxf2 0-1

[Event "Cali Region-ch"]
[Site "Cali"]
[Date "2017.05.01"]
[Round "6"]
[White "Borrero, Alexander"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1783"]
[BlackElo "1783"]
[PlyCount "45"]
[EventDate "2017.04.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. Nf3 Nf6 5. d4 Bg4 6. Nb5 Qd8 7. Bf4 Nd5 8. Bc4 c6 9. Bxd5 Qa5+ 10. Qd2 Qxb5 11. Bxf7+ Kxf7 12. Ne5+ Ke8 13. Nxg4 Qxb2 14. 0-0 Qb6 15. Rab1 Qa6 16. Qe3 Nd7 17. Qe6 c5 18. Qe4 Qc6 19. d5 Qa6 20. Rfe1 Kd8 21. d6 exd6 22. Rxb7 Kc8 23. Rxd7 1-0

[Event "Cali Region-ch"]
[Site "Cali"]
[Date "2017.05.01"]
[Round "7"]
[White "Geurts, Harrie Tulio"]
[Black "Buitrago, Juan Carlos"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "1783"]
[BlackElo "2085"]
[PlyCount "84"]
[EventDate "2017.04.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Bd3 d5 7. exd5 cxd5 8. 0-0 Bd6 9. h3 0-0 10. Bg5 Rb8 11. Qc1 c6 12. Nc3 Re8 13. Rb1 h6 14. Bf4 Qc7 15. Bxd6 Qxd6 16. Re1 Bd7 17. Qd2 Rxe1+ 18. Qxe1 Re8 19. Qd2 Qb4 20. Ne4 Rxe4 21. c3 Qe7 22. Bxe4 Nxe4 23. Qe3 Qc5 24. Qxc5 Nxc5 25. Rd1 Be6 26. Rd4 Kf8 27. Rb4 Ke7 28. Rb8 Kd6 29. Ra8 a6 30. b4 Ne4 31. Rxa6 Nxc3 32. Kf1 d4 33. Ke1 Nxa2 34. b5 Nb4 35. Ra4 c5 36. Kd2 Bd7 37. Ra7 Bxb5 38. Rxf7 c4 39. Rxg7 c3+ 40. Kc1 d3 41. Rb7 d2+ 42. Kd1 Ba4+ 0-1

[Event "Cali Region-ch"]
[Site "Cali"]
[Date "2017.04.30"]
[Round "4"]
[White "Chicunque, Kevin"]
[Black "Geurts, Harrie Tulio"]
[Result "0-1"]
[ECO "B01"]
[BlackElo "1783"]
[PlyCount "27"]
[EventDate "2017.04.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. Nf3 Nf6 5. Bc4 e6 6. 0-0 Nc6 7. d3 Be7 8. Re1 0-0 9. Bg5 Qd8 10. Bf4 a6 11. Qd2 b5 12. Bb3 Bb7 13. Bh6 gxh6 14. Qxh6 0-1

[Event "Cali Region-ch"]
[Site "Cali"]
[Date "2017.04.30"]
[Round "5"]
[White "Geurts, Harrie Tulio"]
[Black "Lopera, Jeison Mauricio"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1783"]
[BlackElo "1659"]
[PlyCount "29"]
[EventDate "2017.04.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bb4+ 5. c3 Bc5 6. Bc4 Qf6 7. Be3 Bb6 8. 0-0 d6 9. Nxc6 bxc6 10. Nd2 Ne7 11. Qe2 Be6 12. Rae1 0-0 13. Bd3 Ng6 14. Bb1 Rfe8 15. Nf3 1-0

[Event "Cali Region-ch"]
[Site "Cali"]
[Date "2017.04.29"]
[Round "3"]
[White "Geurts, Harrie Tulio"]
[Black "Villaquiran, Miguel"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "1783"]
[BlackElo "1616"]
[PlyCount "20"]
[EventDate "2017.04.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Bg5 Be7 5. Qc2 Bb7 6. Nbd2 d5 7. e3 Nbd7 8. Bd3 0-0 9. 0-0 h6 10. Bh4 c5 1/2-1/2

[Event "Cali Region-ch"]
[Site "Cali"]
[Date "2017.04.29"]
[Round "2"]
[White "Renteria, Rolando"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2106"]
[BlackElo "1783"]
[PlyCount "45"]
[EventDate "2017.04.28"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. g3 c6 6. Bf4 Qd8 7. Bg2 Bg4 8. Qd2 e6 9. h3 Bh5 10. g4 Bg6 11. Nf3 Ne4 12. Nxe4 Bxe4 13. 0-0 Bd6 14. Rfe1 Bxf4 15. Qxf4 Bxc2 16. d5 0-0 17. Nd4 Bg6 18. dxe6 fxe6 19. Nxe6 Rxf4 20. Nxd8 Rb4 21. Re7 Rxb2 22. Rae1 h6 23. Ne6 1-0

[Event "Medellin Construct op"]
[Site "Medellin"]
[Date "2017.01.26"]
[Round "2"]
[White "Geurts, Harrie Tulio"]
[Black "Rosero Zapata, Luis Fernando"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "1791"]
[BlackElo "1972"]
[PlyCount "74"]
[EventDate "2017.01.25"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "CBM 176 Extra"]
[Source "ChessBase"]
[SourceDate "2017.03.02"]
[SourceVersion "1"]
[SourceVersionDate "2017.03.02"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. a3 Bxd2+ 6. Nbxd2 d5 7. e3 0-0 8. Bd3 Nbd7 9. cxd5 exd5 10. 0-0 c5 11. Rc1 c4 12. Bb1 b5 13. Re1 Ne4 14. Nf1 f5 15. N3d2 a5 16. f4 Ndf6 17. Nf3 b4 18. axb4 axb4 19. Ne5 Bd7 20. Nd2 Ba4 21. Bc2 Bxc2 22. Rxc2 b3 23. Rc1 Nxd2 24. Qxd2 Ne4 25. Qd1 Ra2 26. Rb1 Qb4 27. Nc6 Qb7 28. Ne5 g6 29. h4 Qe7 30. h5 Qh4 31. hxg6 Rf6 32. Qf3 hxg6 33. Ra1 Rfa6 34. Rab1 Rxb2 35. Ra1 Rba2 36. Rab1 Kg7 37. Rec1 Ng3 0-1

[Event "Medellin Flores op 20th"]
[Site "Medellin"]
[Date "2014.08.10"]
[Round "8"]
[White "Geurts, Harrie Tulio"]
[Black "Munoz, Farid"]
[Result "1/2-1/2"]
[ECO "B74"]
[WhiteElo "1785"]
[BlackElo "2186"]
[PlyCount "82"]
[EventDate "2014.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Nb3 d6 8. Be2 0-0 9. 0-0 a5 10. a4 Be6 11. f4 Rc8 12. f5 Bd7 13. Qd2 Ne5 14. Bh6 Bxh6 15. Qxh6 Rxc3 16. bxc3 Qb6+ 17. Kh1 Nxe4 18. fxg6 hxg6 19. Qh4 f5 20. Bf3 g5 21. Qe1 Nf6 22. Qf2 Qc7 23. Qd4 b6 24. Qd2 f4 25. Be2 Kg7 26. Nd4 Ne4 27. Qe1 Rh8 28. Kg1 Nxc3 29. Nf3 Qc5+ 30. Kh1 Ne4 31. Nxe5 Ng3+ 32. Qxg3 fxg3 33. Rf7+ Kh6 34. Nxd7 Qxc2 35. Rxe7 Rh7 36. Re6+ Kg7 37. Re7+ Kg6 38. Re6+ Kg7 39. Re7+ Kg6 40. Re6+ Kg7 41. Re7+ Kg6 1/2-1/2

[Event "Medellin Flores op 20th"]
[Site "Medellin"]
[Date "2014.08.09"]
[Round "6"]
[White "Zabala, Fidel"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2000"]
[BlackElo "1785"]
[PlyCount "105"]
[EventDate "2014.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d3 e5 4. g3 d6 5. Bg2 Be7 6. 0-0 Nf6 7. Re1 0-0 8. h3 Ne8 9. Nbd2 f5 10. exf5 Bxf5 11. Nf1 Nc7 12. c3 Bf6 13. g4 Be6 14. Ng3 Qd7 15. Be3 Nd5 16. Ne4 Be7 17. Nfg5 Nf4 18. Bxf4 Rxf4 19. Nxe6 Qxe6 20. Qd2 Raf8 21. Re2 Bh4 22. Ng3 g6 23. Qc2 Kg7 24. Qb3 Qxb3 25. axb3 Bxg3 26. fxg3 R4f7 27. Bd5 Rd7 28. Ra4 Ne7 29. Bg2 Nc6 30. Re1 a6 31. Rae4 Rdf7 32. R4e2 Rc8 33. Bd5 Rfc7 34. Rf2 Rf8 35. Rxf8 Kxf8 36. Rf1+ Kg7 37. g5 Nd8 38. Rf6 Rd7 39. h4 a5 40. Kg2 Nc6 41. Kf3 Nd8 42. Ke4 Nc6 43. g4 Nd8 44. h5 gxh5 45. gxh5 h6 46. Rg6+ Kh7 47. Rxh6+ Kg7 48. Rf6 b5 49. Kf5 a4 50. bxa4 bxa4 51. g6 Kh6 52. Rf8 a3 53. Rh8+ 1-0

[Event "Medellin Flores op 20th"]
[Site "Medellin"]
[Date "2014.08.08"]
[Round "5"]
[White "Dabraccio, Guillermo"]
[Black "Geurts, Harrie Tulio"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1766"]
[BlackElo "1785"]
[PlyCount "29"]
[EventDate "2014.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. Bf4 Bf5 4. e3 h6 5. Be2 e6 6. Nbd2 Bd6 7. Ne5 Nf6 8. h3 Ne4 9. 0-0 0-0 10. c4 Nxd2 11. Qxd2 dxc4 12. Bh2 f6 13. Nxc4 Bxh2+ 14. Kxh2 Qc7+ 15. Kg1 1/2-1/2

[Event "Medellin Flores op 20th"]
[Site "Medellin"]
[Date "2014.08.08"]
[Round "4"]
[White "Geurts, Harrie Tulio"]
[Black "Torres, Jorge Emilio"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "1785"]
[BlackElo "2037"]
[PlyCount "114"]
[EventDate "2014.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 c6 3. Bf4 Qc7 4. e3 Nd7 5. Be2 e5 6. dxe5 dxe5 7. Bg3 Ngf6 8. 0-0 Be7 9. h3 0-0 10. c4 a5 11. Nc3 Re8 12. Qc2 Qb6 13. Na4 Qa7 14. a3 e4 15. Nd4 Bf8 16. Rfd1 Nc5 17. Rd2 Bd7 18. Nxc5 Qxc5 19. Rad1 a4 20. Bh4 Qe5 21. Nb5 Bxh3 22. Bg3 Qg5 23. Nc7 Bc5 24. Nxe8 Rxe8 25. gxh3 Bxe3 26. Rd8 Qxg3+ 27. Kh1 Qxh3+ 28. Kg1 Qg3+ 29. Kh1 Qh3+ 30. Kg1 Bxf2+ 31. Kxf2 Qh2+ 32. Kf1 Qh1+ 33. Kf2 e3+ 34. Kg3 Ne4+ 35. Kf4 Qh4+ 36. Kxe3 Qg5+ 37. Kd3 Rxd8+ 38. Kxe4 Re8+ 39. Kf3 Qe3+ 40. Kg2 Qxe2+ 41. Qxe2 Rxe2+ 42. Kf3 Re8 43. Rd7 Rb8 44. c5 g6 45. Rd4 b6 46. Rxa4 bxc5 47. Rc4 Rxb2 48. Rxc5 Rb3+ 49. Kf4 Rxa3 50. Rxc6 Kg7 51. Rc7 h5 52. Kg5 Ra5+ 53. Kf4 g5+ 54. Kg3 Ra3+ 55. Kg2 h4 56. Rc5 f6 57. Rc7+ Kg6 0-1

[Event "Medellin Flores op 20th"]
[Site "Medellin"]
[Date "2014.08.07"]
[Round "2"]
[White "Geurts, Harrie Tulio"]
[Black "Narvaez Ramirez, Faber Alberto"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1785"]
[BlackElo "2107"]
[PlyCount "34"]
[EventDate "2014.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. c3 Bd6 5. Bd3 Ne7 6. h3 0-0 7. Nf3 Bf5 8. Bg5 f6 9. Be3 Qd7 10. Qc2 Re8 11. g4 Bxd3 12. Qxd3 Ng6 13. 0-0 Re4 14. Nbd2 Rxg4+ 15. hxg4 Qxg4+ 16. Kh1 Qh3+ 17. Kg1 Nh4 0-1

[Event "Medellin Flores op 20th"]
[Site "Medellin"]
[Date "2014.08.07"]
[Round "3"]
[White "Martinez, Jorge Alexander"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "2178"]
[BlackElo "1785"]
[PlyCount "79"]
[EventDate "2014.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]

1. e4 c5 2. b4 cxb4 3. a3 d5 4. e5 e6 5. axb4 Bxb4 6. c3 Bf8 7. d4 Nc6 8. Bd3 g6 9. Nf3 Bh6 10. Na3 Bd7 11. Bxh6 Nxh6 12. Nb5 0-0 13. h4 f5 14. Nd6 Nf7 15. Nxb7 Qc7 16. Nc5 Ncxe5 17. h5 Nxf3+ 18. Qxf3 g5 19. h6 g4 20. Qe3 e5 21. Kf1 e4 22. Ba6 f4 23. Qc1 Nd6 24. Rh5 e3 25. Rxd5 Rae8 26. Bd3 Bf5 27. Qc2 Bxd3+ 28. Qxd3 Qe7 29. Rh5 exf2 30. Re5 Qh4 31. Rxa7 Qh1+ 32. Kxf2 g3+ 33. Kf3 Nf5 34. Rxf5 Rxf5 35. Qxf5 Qd1+ 36. Kxf4 Qd2+ 37. Kxg3 Re3+ 38. Kh2 Rh3+ 39. Qxh3 Qf4+ 40. Qg3+ 1-0

[Event "Medellin Flores op 20th"]
[Site "Medellin"]
[Date "2014.08.06"]
[Round "1"]
[White "Herrera, Milena"]
[Black "Geurts, Harrie Tulio"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "2121"]
[BlackElo "1785"]
[PlyCount "82"]
[EventDate "2014.08.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Nc2 Nf6 7. Nc3 d6 8. Be2 b6 9. 0-0 0-0 10. Be3 Bb7 11. f3 Rc8 12. Rc1 Ne5 13. b3 h5 14. h3 Ned7 15. Qd2 Nc5 16. Bh6 a5 17. Bxg7 Kxg7 18. Nd4 Nfd7 19. Nd5 Ne5 20. f4 Nc6 21. Nxc6 Bxc6 22. Qd4+ Kh7 23. f5 Bxd5 24. exd5 Nd7 25. g4 hxg4 26. hxg4 g5 27. Kg2 f6 28. Rh1+ Kg7 29. Rh5 Rh8 30. Rxg5+ Kf7 31. Rh5 Rxh5 32. gxh5 b5 33. Rg1 bxc4 34. bxc4 Ne5 35. h6 Qh8 36. Qh4 Rg8+ 37. Kf2 Rxg1 38. Kxg1 Qh7 39. Qf4 Qg8+ 40. Kf2 Qg5 41. Qxg5 fxg5 1/2-1/2

[Event "Medellin IRT op"]
[Site "Medellin"]
[Date "2012.08.07"]
[Round "8"]
[White "Barros, Raul"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "2029"]
[BlackElo "1755"]
[PlyCount "55"]
[EventDate "2012.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 Nf6 4. e4 d6 5. Nf3 0-0 6. Be2 c5 7. d5 Na6 8. 0-0 Bg4 9. Ne1 Bxe2 10. Qxe2 Nd7 11. f4 f5 12. Nf3 Nc7 13. Bd2 a6 14. exf5 Rxf5 15. Rae1 Kf8 16. g4 Rf7 17. Ng5 Bd4+ 18. Kh1 Rg7 19. f5 Bf6 20. Ne6+ Nxe6 21. fxe6 Kg8 22. exd7 Qxd7 23. Bh6 Rf7 24. Qe6 Qe8 25. g5 Bg7 26. Rf3 Bxh6 27. gxh6 Kf8 28. Ref1 1-0

[Event "Medellin IRT op"]
[Site "Medellin"]
[Date "2012.08.06"]
[Round "7"]
[White "Geurts, Harrie Tulio"]
[Black "Lopez Idarraga, Daniel Eduardo"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1755"]
[BlackElo "2038"]
[PlyCount "76"]
[EventDate "2012.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d3 Bg7 4. Be2 Nc6 5. c3 Nf6 6. h3 0-0 7. 0-0 d5 8. Nbd2 b5 9. Qc2 a5 10. exd5 Nxd5 11. Ne4 Qb6 12. c4 Ndb4 13. Qb1 bxc4 14. dxc4 Nd4 15. Nxd4 cxd4 16. a3 Na6 17. Bf3 Bb7 18. Ng5 Bxf3 19. Nxf3 Nc5 20. Ra2 e5 21. Nd2 f5 22. Rd1 a4 23. Nf3 h6 24. Bd2 e4 25. Ne1 Nb3 26. Bb4 Rfc8 27. c5 Nxc5 28. Bxc5 Rxc5 29. Nc2 Rac8 30. Nb4 d3 31. b3 axb3 32. Qxb3+ Kh7 33. h4 Rc2 34. Rxc2 dxc2 35. Rc1 Rc3 36. Qa4 e3 37. Rxc2 exf2+ 38. Kf1 Qe3 0-1

[Event "Medellin IRT op"]
[Site "Medellin"]
[Date "2012.08.06"]
[Round "6"]
[White "Santos Morales, Natalia Andrea"]
[Black "Geurts, Harrie Tulio"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2042"]
[BlackElo "1755"]
[PlyCount "46"]
[EventDate "2012.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. f4 d6 4. Nf3 Nf6 5. Bd3 Bg4 6. 0-0 0-0 7. Kh1 c5 8. dxc5 dxc5 9. h3 Bd7 10. Nc3 Nc6 11. a3 a6 12. Be3 b6 13. Qe2 Bc8 14. e5 Nd5 15. Nxd5 Qxd5 16. Rad1 Qd8 17. Bxg6 Qc7 18. Bxh7+ Kxh7 19. Ng5+ Kg6 20. g4 Bxe5 21. fxe5 Nxe5 22. Bf4 Bb7+ 23. Kh2 Nf3+ 1/2-1/2

[Event "Medellin IRT op"]
[Site "Medellin"]
[Date "2012.08.05"]
[Round "4"]
[White "Montoya Diaz, Cesar Augusto"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2136"]
[BlackElo "1755"]
[PlyCount "51"]
[EventDate "2012.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 d5 2. e5 e6 3. d4 c5 4. c3 cxd4 5. cxd4 Qb6 6. Nf3 Bd7 7. Nc3 Ne7 8. Rb1 Nf5 9. Be3 Bb4 10. Bd3 g6 11. 0-0 Nxe3 12. fxe3 0-0 13. Ng5 Be7 14. Qg4 Bxg5 15. Qxg5 Qd8 16. Rf6 Nc6 17. Rbf1 Be8 18. R1f4 Kg7 19. Rh4 Rh8 20. Qh6+ Kg8 21. Bxg6 Qb6 22. Bd3 Ne7 23. Bxh7+ Rxh7 24. Qxh7+ Kf8 25. Qh6+ Kg8 26. Qh8# 1-0

[Event "Medellin IRT op"]
[Site "Medellin"]
[Date "2012.08.04"]
[Round "3"]
[White "Castaneda, Jorge Luis"]
[Black "Geurts, Harrie Tulio"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2131"]
[BlackElo "1755"]
[PlyCount "51"]
[EventDate "2012.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bg4 4. b3 e6 5. Bb2 Bd6 6. Nbd2 Nbd7 7. Be2 c6 8. c4 Qc7 9. 0-0 0-0 10. h3 Bh5 11. c5 Be7 12. Qc2 Bg6 13. Bd3 Bxd3 14. Qxd3 Rae8 15. b4 a6 16. a4 Ra8 17. Bc3 Rfe8 18. Rfb1 Bf8 19. Rb3 Reb8 20. b5 axb5 21. axb5 Rxa1+ 22. Bxa1 b6 23. bxc6 Qxc6 24. Qb1 Qc7 25. cxb6 Rxb6 26. Rxb6 1/2-1/2

[Event "Medellin IRT op"]
[Site "Medellin"]
[Date "2012.08.04"]
[Round "2"]
[White "Geurts, Harrie Tulio"]
[Black "Laverde, Luis Eduardo"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1755"]
[BlackElo "2118"]
[PlyCount "63"]
[EventDate "2012.08.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Nf6 5. Be2 g6 6. 0-0 Bg7 7. d3 c6 8. Bd2 Qc7 9. h3 0-0 10. Qc1 Re8 11. d4 b5 12. a3 a6 13. Bd3 Bb7 14. Ne2 c5 15. Bf4 Qc8 16. dxc5 Bxf3 17. gxf3 Qxh3 18. Ng3 Nc6 19. c3 Rad8 20. Be2 Rd5 21. b4 Nh5 22. Rd1 Nxg3 23. fxg3 Rh5 24. g4 Rh4 25. Kf2 Nd4 26. Bg3 Nb3 27. Qb2 Nxa1 28. Qxa1 Bh6 29. Bf1 Qh1 30. Bg2 Be3+ 31. Kxe3 Qxg2 32. Bxh4 1-0

[Event "Medellin Cuartas Memorial"]
[Site "Medellin"]
[Date "2011.08.06"]
[Round "5"]
[White "Geurts, Harrie Tulio"]
[Black "Uribe, Mauricio"]
[Result "0-1"]
[ECO "E38"]
[WhiteElo "1714"]
[BlackElo "2346"]
[PlyCount "100"]
[EventDate "2011.08.03"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Na6 6. Bg5 Nxc5 7. a3 Bxc3+ 8. Qxc3 Nce4 9. Bxf6 Qxf6 10. Qxf6 gxf6 11. g3 b6 12. Bg2 Bb7 13. Nf3 Nd6 14. b3 Ke7 15. 0-0 Rhd8 16. Nd4 Ne4 17. Rfd1 a6 18. Rac1 Rac8 19. Nc2 Rc7 20. Ne3 f5 21. Rd4 Rdc8 22. Bxe4 fxe4 23. g4 h5 24. h3 hxg4 25. hxg4 Rg8 26. Kh2 Kf6 27. Kg3 Ke5 28. Rcd1 f5 29. f4+ exf3 30. exf3 Bc6 31. f4+ Kf6 32. g5+ Kf7 33. R1d2 Rh8 34. Rh2 Rxh2 35. Kxh2 Rc8 36. Kg3 Rh8 37. Rd1 Ke7 38. Re1 Be4 39. b4 d6 40. Ng4 Rc8 41. Ne3 e5 42. fxe5 dxe5 43. Nd5+ Ke6 44. Nxb6 Rg8 45. Rxe4 fxe4 46. Kg4 e3 47. Nd5 e2 48. Nc7+ Kd7 49. Nxa6 e1Q 50. Nc5+ Ke7 0-1

[Event "Medellin Cuartas Memorial"]
[Site "Medellin"]
[Date "2011.08.06"]
[Round "6"]
[White "Rendon, Daniel"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2088"]
[BlackElo "1714"]
[PlyCount "41"]
[EventDate "2011.08.03"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 g6 2. d4 d6 3. Nc3 Bg7 4. Be3 Nf6 5. h3 0-0 6. Nge2 Nbd7 7. g3 e5 8. Bg2 c6 9. 0-0 Qc7 10. a4 b6 11. f4 c5 12. dxe5 dxe5 13. fxe5 Nxe5 14. Bg5 Nh5 15. Nd5 Qd7 16. g4 Nxg4 17. hxg4 Qxg4 18. Be7 Re8 19. Nef4 Bd4+ 20. Qxd4 cxd4 21. Nxh5 1-0

[Event "Medellin Cuartas Memorial"]
[Site "Medellin"]
[Date "2011.08.05"]
[Round "4"]
[White "Arias, Braulio"]
[Black "Geurts, Harrie Tulio"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2049"]
[BlackElo "1714"]
[PlyCount "115"]
[EventDate "2011.08.03"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Bc4 Bg4 6. f3 Bh5 7. Bd2 c6 8. Nd5 Qd8 9. Nxf6+ exf6 10. Qe2+ Qe7 11. Nh3 Qxe2+ 12. Kxe2 Bd6 13. Nf4 Bxf4 14. Bxf4 0-0 15. Rhe1 Nd7 16. Kf2 Rfe8 17. Rxe8+ Rxe8 18. Re1 Rxe1 19. Kxe1 Bg6 20. Kd2 Kf8 21. Bd6+ Ke8 22. Bb3 Bf5 23. c4 Nb6 24. Bc5 Nc8 25. Bb4 h5 26. a4 g5 27. a5 a6 28. Bc5 Bd7 29. Bc2 f5 30. Ke3 f6 31. Bd3 Kf7 32. d5 cxd5 33. cxd5 Ne7 34. Bxe7 Kxe7 35. Kd4 Kd6 36. g3 Bc8 37. f4 h4 38. Bc2 hxg3 39. hxg3 Bd7 40. Bd3 Bc8 41. b3 Bd7 42. b4 gxf4 43. gxf4 Ba4 44. Bxf5 Bb3 45. Be6 Ba2 46. Ke4 Bb1+ 47. Kf3 Ba2 48. Kg4 Bb1 49. Kh5 Be4 50. f5 Bxd5 51. Bxd5 Kxd5 52. Kg6 Ke5 53. Kg7 Kxf5 54. Kf7 Ke5 55. Ke7 Kd5 56. Kd7 Kc4 57. Kc7 Kb5 58. Kxb7 0-1

[Event "Medellin Cuartas Memorial"]
[Site "Medellin"]
[Date "2011.08.04"]
[Round "2"]
[White "Blandon, Luis Guillermo"]
[Black "Geurts, Harrie Tulio"]
[Result "1/2-1/2"]
[ECO "B19"]
[WhiteElo "1974"]
[BlackElo "1714"]
[PlyCount "53"]
[EventDate "2011.08.03"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Bd3 Bh7 8. Nf3 Nd7 9. h5 Bxd3 10. Qxd3 Ngf6 11. Bf4 e6 12. c3 Qb6 13. 0-0-0 Nd5 14. Ne2 Nxf4 15. Nxf4 0-0-0 16. Qc4 Bd6 17. Nd3 Rhe8 18. Rhe1 Qa5 19. g4 Qd5 20. Qxd5 exd5 21. Rxe8 Rxe8 22. Nh4 Nf6 23. Nf5 Bf8 24. Ne5 g6 25. hxg6 fxg6 26. Nh4 g5 27. Nf5 1/2-1/2

[Event "Cali IRT Deptal Valle-ch"]
[Site "Cali"]
[Date "2011.04.21"]
[Round "8.17"]
[White "Geurts, Harrie Tulio"]
[Black "Tovar, Hugo"]
[Result "1-0"]
[ECO "B19"]
[PlyCount "67"]
[EventDate "2011.03.18"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. h5 Bh7 9. Bd3 Qb6 10. Bxh7 Rxh7 11. Qd3 Ngf6 12. a4 0-0-0 13. c3 e5 14. 0-0 exd4 15. cxd4 Bd6 16. Nf5 Bc7 17. Be3 Qa6 18. Qc2 Kb8 19. b4 Nd5 20. b5 Qb6 21. a5 Qxb5 22. Rfb1 Nxe3 23. Nxe3 Qxh5 24. Qxh7 g5 25. Qf5 Nf8 26. Ne5 Ka8 27. a6 b6 28. Qe4 Rd6 29. Nf5 Rf6 30. Rc1 g4 31. Ng3 Qg5 32. Rxc6 Rf4 33. Rxc7+ Rxe4 34. Rc8# 1-0

[Event "Cali IRT Deptal Valle-ch"]
[Site "Cali"]
[Date "2011.04.21"]
[Round "7.14"]
[White "Guarin, Holmes"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "1894"]
[PlyCount "44"]
[EventDate "2011.03.18"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 c6 2. d4 d5 3. e3 Nf6 4. Nf3 Bf5 5. cxd5 cxd5 6. Bb5+ Bd7 7. Nc3 e6 8. Bd2 a6 9. Bd3 Be7 10. Rc1 Nc6 11. a3 0-0 12. Ne5 Bd6 13. f4 Qc7 14. g4 g6 15. h4 Ne8 16. g5 Ng7 17. Ng4 Nh5 18. Be2 Ng3 19. Nf6+ Kg7 20. Rh2 Nxe2 21. Qxe2 Rh8 22. Ng4 b5 1-0

[Event "Cali IRT Deptal Valle-ch"]
[Site "Cali"]
[Date "2011.04.20"]
[Round "6.18"]
[White "Vente, Andres"]
[Black "Geurts, Harrie Tulio"]
[Result "0-1"]
[ECO "B13"]
[PlyCount "70"]
[EventDate "2011.03.18"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Bf5 5. Bd3 Bxd3 6. Qxd3 a6 7. Bf4 Nd7 8. Nbd2 e6 9. 0-0 Ngf6 10. Rac1 b5 11. a3 Rc8 12. Be5 Be7 13. Ng5 0-0 14. f4 h6 15. Ngf3 Ng4 16. c3 f5 17. Rce1 Qb6 18. h3 Ngf6 19. Bxf6 Nxf6 20. Ne5 Ne4 21. Nxe4 fxe4 22. Qg3 Bd6 23. Nd7 Qc7 24. Nxf8 Rxf8 25. Qg6 Qd7 26. Qg4 Rf6 27. g3 Qf7 28. Qe2 Rg6 29. Qe3 Rf6 30. Re2 Qh5 31. g4 Qh4 32. Ref2 Rg6 33. f5 exf5 34. Rxf5 Rxg4+ 35. hxg4 Qh2# 0-1

[Event "Cali IRT Deptal Valle-ch"]
[Site "Cali"]
[Date "2011.04.19"]
[Round "3.18"]
[White "Geurts, Harrie Tulio"]
[Black "Cadavid, Gerardo"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "1906"]
[PlyCount "40"]
[EventDate "2011.03.18"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 Qxd5 4. Nf3 Nf6 5. Bd3 c5 6. Nc3 Qd8 7. dxc5 Bxc5 8. 0-0 0-0 9. Bg5 Nbd7 10. Ne4 Be7 11. Nxf6+ Bxf6 12. Be3 Bxb2 13. Bxh7+ Kxh7 14. Ng5+ Kg8 15. Rb1 Bf6 16. Ne4 b6 17. Qh5 Bb7 18. Ng3 Qc7 19. Rfd1 Rad8 20. Bg5 Qc6 0-1

[Event "Cali IRT Deptal Valle-ch"]
[Site "Cali"]
[Date "2011.04.18"]
[Round "2.15"]
[White "Machado, Fabio"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "A00"]
[PlyCount "34"]
[EventDate "2011.03.18"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d5 2. Nc3 d4 3. Nce2 e5 4. f4 exf4 5. Nf3 d3 6. cxd3 Qxd3 7. Nc3 Qd8 8. d4 Bg4 9. Bxf4 a6 10. Bc4 Be7 11. Bxf7+ Kxf7 12. Ne5+ Kf8 13. Qxg4 Nf6 14. Qe6 Qe8 15. 0-0 Bb4 16. Qb3 Bxc3 17. bxc3 Nxe4 1-0

[Event "Cali IRT Deptal Valle-ch"]
[Site "Cali"]
[Date "2011.04.18"]
[Round "1.9"]
[White "Schneider Zinner, Werner"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2040"]
[PlyCount "101"]
[EventDate "2011.03.18"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Bf5 4. Nc3 e6 5. Bf4 Nf6 6. e3 Be7 7. Be2 Nbd7 8. 0-0 0-0 9. Qd2 Ne4 10. Nxe4 Bxe4 11. Ne5 Nxe5 12. Bxe5 f6 13. Bg3 Rc8 14. c5 Bg6 15. b4 a6 16. a4 Qd7 17. Bd3 Bd8 18. Bxg6 hxg6 19. Bd6 Re8 20. f4 Bc7 21. Bxc7 Qxc7 22. Rf3 f5 23. Rg3 Kf7 24. Rg5 Rh8 25. Qe2 Ra8 26. Rb1 Qe7 27. Rb2 Qf6 28. h3 Rh4 29. b5 axb5 30. axb5 Qe7 31. bxc6 bxc6 32. Rb6 Qd7 33. Qb2 Rc8 34. Rg3 Rhh8 35. Rf3 Rc7 36. Rf1 Rhc8 37. Ra1 Ke7 38. Ra3 Kf6 39. Rab3 Kf7 40. Qf2 Qe7 41. Qg3 Qf6 42. h4 Ke7 43. Qf2 Kf7 44. g3 Qe7 45. Qb2 Qd7 46. Kg2 Qe7 47. Kf3 Qf6 48. Rb8 Qd8 49. Rxc8 Rxc8 50. Rb7+ Rc7 51. Qb6 1-0

[Event "Bogota McGregor op 1st"]
[Site "Bogota"]
[Date "2010.12.08"]
[Round "9"]
[White "Diaz Herrera, Leider Andres"]
[Black "Geurts, Harrie Tulio"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "1952"]
[PlyCount "61"]
[EventDate "2010.12.03"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 a6 5. Bd3 Bg4 6. Bf4 Nc6 7. c3 e6 8. Nbd2 Bd6 9. Bxd6 Qxd6 10. Qa4 Nge7 11. Ne5 Bh5 12. 0-0 0-0 13. f4 f6 14. Nxc6 Nxc6 15. Qc2 h6 16. Bg6 Bxg6 17. Qxg6 Ne7 18. Qh5 Kh7 19. Rae1 Nc6 20. Rf3 Rae8 21. f5 e5 22. Rg3 Re7 23. Qg6+ Kh8 24. Nb3 b6 25. Ree3 exd4 26. cxd4 Qd7 27. Qg4 Rfe8 28. Kf2 Rxe3 29. Rxe3 Rxe3 30. Kxe3 Qe7+ 31. Kf3 1/2-1/2

[Event "Bogota McGregor op 1st"]
[Site "Bogota"]
[Date "2010.12.07"]
[Round "8"]
[White "Geurts, Harrie Tulio"]
[Black "Zuluaga Torres, Juan Pablo"]
[Result "1/2-1/2"]
[ECO "B90"]
[BlackElo "1992"]
[PlyCount "78"]
[EventDate "2010.12.03"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nf3 Be7 8. Bc4 Qc7 9. Bb3 0-0 10. Bg5 Nbd7 11. 0-0 b5 12. Nd5 Qd8 13. Nxe7+ Qxe7 14. Bd5 Rb8 15. Nh4 Nb6 16. Bb3 Be6 17. Qf3 Nbd7 18. g4 h6 19. Bxf6 Qxf6 20. Nf5 g6 21. Nxh6+ Kg7 22. Qe3 Qh4 23. Nf5+ gxf5 24. gxf5 Bxb3 25. axb3 Nc5 26. f6+ Kxf6 27. f4 Ke6 28. fxe5 Rg8+ 29. Kh2 Nxe4 30. Rf4 Qg3+ 31. Qxg3 Nxg3 32. exd6 Rb6 33. Rd1 Rc6 34. c4 bxc4 35. bxc4 Rb6 36. Rd2 Rxd6 37. Rxd6+ Kxd6 38. Rxf7 Ne4 39. b4 Kc6 1/2-1/2

[Event "Bogota McGregor op 1st"]
[Site "Bogota"]
[Date "2010.12.06"]
[Round "6"]
[White "Geurts, Harrie Tulio"]
[Black "Ruiz, Melissa"]
[Result "1-0"]
[ECO "C01"]
[BlackElo "2018"]
[PlyCount "69"]
[EventDate "2010.12.03"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Bd6 5. Bd3 Bg4 6. h3 Be6 7. Bg5 Nf6 8. 0-0 h6 9. Bd2 Nc6 10. c3 Qd7 11. Re1 0-0-0 12. Ne5 Qe8 13. b4 Nd7 14. Nxc6 bxc6 15. Qa4 Nb6 16. Qxa7 Kd7 17. Qa3 g6 18. Qc1 Kc8 19. a4 Kb7 20. a5 Ra8 21. Qb2 Nc4 22. Bxc4 dxc4 23. Na3 Qd7 24. b5 Rhb8 25. bxc6+ Kxc6 26. Qc2 Rxa5 27. d5+ Bxd5 28. Nxc4 Rxa1 29. Rxa1 Bxc4 30. Qe4+ Kb6 31. Qxc4 c5 32. Be3 Qf5 33. g4 Qe5 34. Ra6+ Kc7 35. Rxd6 1-0

[Event "Bogota McGregor op 1st"]
[Site "Bogota"]
[Date "2010.12.05"]
[Round "5"]
[White "Barajas, Ivan"]
[Black "Geurts, Harrie Tulio"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1696"]
[PlyCount "66"]
[EventDate "2010.12.03"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Bf5 5. Bf4 a6 6. c3 Nd7 7. Ne5 Nxe5 8. Bxe5 e6 9. Bd3 Bxd3 10. Qxd3 Nf6 11. f3 Bd6 12. 0-0 Bxe5 13. dxe5 Nd7 14. Qd4 Rc8 15. Nd2 0-0 16. Kh1 Qc7 17. f4 Qc5 18. Nb3 Qxd4 19. Nxd4 Nb6 20. f5 exf5 21. Nxf5 Rce8 22. Rae1 Nc4 23. b3 Nxe5 24. Nd6 Re7 25. Nxb7 Rxb7 26. Rxe5 Rc7 27. Rf3 d4 28. c4 f5 29. Rd5 Re7 30. Kg1 Re2 31. Rf2 Re1+ 32. Rf1 Re2 33. Rxd4 Rxa2 0-1

[Event "Bogota McGregor op 1st"]
[Site "Bogota"]
[Date "2010.12.04"]
[Round "4"]
[White "Geurts, Harrie Tulio"]
[Black "Salcedo, Jackeline"]
[Result "0-1"]
[ECO "B40"]
[BlackElo "2017"]
[PlyCount "52"]
[EventDate "2010.12.03"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 Nc6 6. Nxc6 bxc6 7. 0-0 d5 8. exd5 cxd5 9. Nd2 Bd6 10. Nf3 0-0 11. Bg5 e5 12. Be2 Be6 13. Bh4 h6 14. Bg3 Qc7 15. a3 Ne4 16. Rc1 f5 17. c4 Nxg3 18. hxg3 Qf7 19. c5 Bc7 20. Nh4 Qf6 21. Qa4 Rad8 22. Bh5 Bf7 23. Bxf7+ Qxf7 24. Nf3 f4 25. g4 Qf6 26. Rfe1 d4 0-1

[Event "Bogota McGregor op 1st"]
[Site "Bogota"]
[Date "2010.12.04"]
[Round "2"]
[White "Herrera Rincon, Wilene"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1713"]
[PlyCount "115"]
[EventDate "2010.12.03"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. d4 Bf5 5. Bd3 Bxd3 6. Qxd3 e6 7. 0-0 Be7 8. Re1 Nf6 9. Ne5 0-0 10. Nd2 Nbd7 11. f4 Rc8 12. f5 Qc7 13. fxe6 fxe6 14. c3 Bd6 15. Qh3 Rce8 16. Ndf3 Ne4 17. Rxe4 dxe4 18. Ng5 h6 19. Nxe6 Qc8 20. Nxf8 Nxe5 21. Qxc8 Rxc8 22. Ne6 Nd3 23. Rb1 Re8 24. d5 Re7 25. Be3 b5 26. b3 Be5 27. c4 Rd7 28. Rd1 a5 29. Rf1 Nb4 30. Rf8+ Kh7 31. a4 bxa4 32. bxa4 Nc2 33. Rf2 Nxe3 34. Nf8+ Kg8 35. Nxd7 Bd4 36. Rf8+ Kh7 37. Kh1 Nxc4 38. Re8 Nd6 39. Re6 Nb7 40. Rxe4 Bc3 41. Nf8+ Kg8 42. Ne6 Bb4 43. g4 g5 44. Kg2 Kf7 45. Kf3 Nd6 46. Nd8+ Kg7 47. Re7+ Kg8 48. Re6 Nc4 49. Nc6 Bf8 50. Re8 Kf7 51. Ra8 Bb4 52. Nxb4 axb4 53. a5 b3 54. a6 b2 55. Rb8 b1Q 56. Rxb1 Nd2+ 57. Ke3 Nxb1 58. a7 1-0

[Event "Colombia Mire Lea Florida Cup"]
[Site "Colombia"]
[Date "2010.10.18"]
[Round "7.11"]
[White "Munoz Andrade, Jesus Alejandro"]
[Black "Geurts, Harrie Tulio"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "1600"]
[BlackElo "1580"]
[PlyCount "40"]
[EventDate "2010.10.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Be7 6. c5 Nbd7 7. b4 a6 8. Bb2 0-0 9. Bd3 Qc7 10. 0-0 Ne8 11. Re1 f5 12. Ne2 h6 13. Nf4 Ndf6 14. Ng6 Rf7 15. Nfe5 Ng4 16. Nxg4 fxg4 17. Nxe7+ Rxe7 18. Qxg4 e5 19. Qg3 e4 20. f3 exd3 0-1

[Event "Colombia Mire Lea Florida Cup"]
[Site "Colombia"]
[Date "2010.10.17"]
[Round "5.12"]
[White "Ceron, Oscar"]
[Black "Geurts, Harrie Tulio"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1600"]
[BlackElo "1580"]
[PlyCount "64"]
[EventDate "2010.10.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d3 d6 5. h3 Nf6 6. Nc3 Na5 7. Bb3 Nxb3 8. axb3 a6 9. Bg5 Be6 10. Ne2 Nd7 11. Bxe7 Qxe7 12. 0-0 0-0 13. Ng3 f5 14. exf5 Bxf5 15. Nxf5 Rxf5 16. Nh2 Raf8 17. Qd2 Qf6 18. Ra4 h5 19. c3 Nc5 20. Ra3 Qg6 21. f3 Rg5 22. d4 Nd3 23. Kh1 Nf4 24. Rg1 Nxh3 25. Raa1 Nxg1 26. Rxg1 Re8 27. dxe5 Rgxe5 28. Qd4 Kh8 29. Qh4 Qg5 30. Qb4 Re1 31. Nf1 c5 32. Qc4 b5 0-1

[Event "Colombia Mire Lea Florida Cup"]
[Site "Colombia"]
[Date "2010.10.17"]
[Round "4.9"]
[White "Geurts, Harrie Tulio"]
[Black "Lopez Idarraga, Daniel Eduardo"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1580"]
[BlackElo "1997"]
[PlyCount "62"]
[EventDate "2010.10.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Bd7 6. Be2 Nc6 7. 0-0 Nh6 8. dxc5 Bxc5 9. Nbd2 Ng4 10. Nb3 Nxf2 11. Rxf2 Bxf2+ 12. Kh1 0-0 13. Bd3 Be3 14. Qe2 Bxc1 15. Rxc1 f6 16. exf6 Rxf6 17. Bxh7+ Kxh7 18. Ng5+ Kg8 19. Qh5 Qf2 20. Qh7+ Kf8 21. Qh8+ Ke7 22. Qxg7+ Kd8 23. h3 b6 24. Rd1 Kc7 25. c4 Re8 26. Ne4 Rf7 27. Nxf2 Rxg7 28. cxd5 exd5 29. Rxd5 Re1+ 30. Kh2 Re2 31. Kg1 Rxb2 0-1

[Event "Colombia Mire Lea Florida Cup"]
[Site "Colombia"]
[Date "2010.10.17"]
[Round "3.4"]
[White "Vacca, Leonardo"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2043"]
[BlackElo "1580"]
[PlyCount "21"]
[EventDate "2010.10.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Bb5+ Bd7 4. Bc4 Bg4 5. f3 Bf5 6. Nc3 c6 7. dxc6 Nxc6 8. d3 e6 9. Be3 Bb4 10. Nge2 a6 11. a3 1-0

[Event "Colombia Mire Lea Florida Cup"]
[Site "Colombia"]
[Date "2010.10.16"]
[Round "2.8"]
[White "Geurts, Harrie Tulio"]
[Black "Bonilla, Julio Cesar"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1580"]
[BlackElo "1600"]
[PlyCount "111"]
[EventDate "2010.10.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Nxd4 6. Bxd4 Bxd4 7. Qxd4 Qf6 8. e5 Qg5 9. Nd2 Ne7 10. Nf3 Qh6 11. Bd3 0-0 12. 0-0 d6 13. exd6 cxd6 14. Rad1 Bd7 15. Be4 Nc6 16. Qxd6 Qxd6 17. Rxd6 Be8 18. c3 Rc8 19. Rfd1 Rc7 20. Bxc6 Bxc6 21. Ne5 Bb5 22. Rd8 g6 23. Rxf8+ Kxf8 24. Rd5 Be8 25. f4 f6 26. Ng4 Bc6 27. Rd6 f5 28. Ne5 Be8 29. Kf2 Ke7 30. Rd2 h6 31. g3 g5 32. Rd4 Ke6 33. Nf3 Rg7 34. fxg5 hxg5 35. Rb4 b6 36. Rd4 Bc6 37. Rd8 Be4 38. Nd4+ Ke7 39. Rh8 f4 40. Rh6 fxg3+ 41. Kxg3 Bb1 42. a3 Kd7 43. Kg4 Bd3 44. Rh5 Re7 45. Rxg5 Re4+ 46. Kg3 Re3+ 47. Kf2 Rh3 48. Kg2 Rh7 49. h3 a6 50. Kg3 a5 51. h4 Ke7 52. Nc6+ Kf6 53. Nd4 Re7 54. Kf3 Be4+ 55. Kf4 Bd3 56. Kf3 1-0

[Event "Cali op-C 11th"]
[Site "Cali"]
[Date "2009.12.29"]
[Round "6.18"]
[White "Londono, Geovanny"]
[Black "Geurts, Harrie Tulio"]
[Result "0-1"]
[ECO "D12"]
[WhiteElo "1643"]
[BlackElo "1600"]
[PlyCount "102"]
[EventDate "2009.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Bf5 3. e3 e6 4. c4 c6 5. Nc3 Bd6 6. cxd5 exd5 7. Bd3 Bxd3 8. Qxd3 Nf6 9. 0-0 0-0 10. Bd2 Nbd7 11. Rab1 Re8 12. b4 a6 13. a4 Ne4 14. b5 axb5 15. axb5 Ndf6 16. bxc6 bxc6 17. Rb7 Rb8 18. Rfb1 Rxb7 19. Rxb7 h6 20. h3 Qa8 21. Nxe4 Nxe4 22. Qb1 Qa4 23. g3 Re6 24. Bb4 Rf6 25. Kg2 Rxf3 26. Kxf3 Bxb4 27. Rb8+ Bf8 28. Qb6 Qd1+ 29. Kg2 Qe2 30. Qb2 Nd2 31. Qc1 Qf3+ 32. Kg1 Ne4 33. Qe1 g6 34. Rc8 Kg7 35. Rxc6 Bd6 36. Kh2 Bb4 37. Qf1 Nxf2 38. Kg1 Qxg3+ 39. Qg2 Nxh3+ 40. Kh1 Qh4 41. Qf1 Nf4+ 42. Kg1 Qg3+ 43. Kh1 Qh4+ 44. Kg1 Nh3+ 45. Kg2 Qg4+ 46. Kh2 Ng5 47. Qf6+ Kh7 48. Kh1 Qh3+ 49. Kg1 Nf3+ 50. Kf2 Be1+ 51. Ke2 Qg2+ 0-1

[Event "Cali op-C 11th"]
[Site "Cali"]
[Date "2009.12.27"]
[Round "3.29"]
[White "Arango, Marco Aurelio"]
[Black "Geurts, Harrie Tulio"]
[Result "0-1"]
[ECO "E06"]
[WhiteElo "1604"]
[BlackElo "1600"]
[PlyCount "82"]
[EventDate "2009.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Bf5 3. c4 c6 4. Nc3 e6 5. cxd5 exd5 6. g3 Be7 7. Bg2 Nf6 8. 0-0 0-0 9. Bf4 Nbd7 10. Rc1 Ne4 11. Qb3 Qb6 12. Qxb6 axb6 13. a3 Nxc3 14. Rxc3 Nf6 15. Nd2 Ne4 16. Nxe4 Bxe4 17. f3 Bg6 18. e4 dxe4 19. fxe4 f6 20. Re1 b5 21. b4 Rfd8 22. d5 Be8 23. h3 Bd6 24. Kh2 g5 25. Bxd6 Rxd6 26. Rce3 Bf7 27. dxc6 bxc6 28. Rc1 Re8 29. g4 Bc4 30. Kg3 Re5 31. a4 Rd2 32. Ra1 bxa4 33. Rxa4 Rb2 34. Ra7 Rxb4 35. Rc7 Re6 36. Bf3 Rb3 37. Re1 Ra3 38. Kf2 Rd6 39. e5 Rd2+ 40. Kg1 Rxf3 41. e6 Rg3+ 0-1

[Event "Cali op-C 11th"]
[Site "Cali"]
[Date "2009.12.27"]
[Round "2.34"]
[White "Geurts, Harrie Tulio"]
[Black "Sanchez, Carlos Fernando"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "1600"]
[PlyCount "151"]
[EventDate "2009.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c3 g6 3. Bf4 Bg7 4. Qc1 0-0 5. Bh6 Re8 6. Bxg7 Kxg7 7. e3 d5 8. Nf3 Nc6 9. Be2 e5 10. dxe5 Nxe5 11. 0-0 Bg4 12. Qd1 Nxf3+ 13. Bxf3 Bxf3 14. Qxf3 Ne4 15. Rd1 Re5 16. Qe2 Qe7 17. Nd2 Re8 18. Nxe4 dxe4 19. Rd2 Qe6 20. b3 c6 21. c4 a6 22. Rad1 Qc8 23. Rd7 R5e7 24. Rxe7 Rxe7 25. Rd6 Re6 26. Qb2+ Kh6 27. Qd4 Rxd6 28. Qxd6 Qe6 29. Qf8+ Kg5 30. h4+ Kh5 31. Qd8 Qg4 32. g3 g5 33. Qf6 gxh4 34. Qxf7+ Qg6 35. Qf4 hxg3 36. fxg3 Qg4 37. Qe5+ Kg6 38. Qe8+ Kg5 39. Qg8+ Kf5 40. Qf7+ Ke5 41. Qc7+ Kf6 42. Qd8+ Kg7 43. Qe7+ Kg6 44. Qe8+ Kh6 45. Qf8+ Qg7 46. Qxg7+ Kxg7 47. Kh2 Kg6 48. Kh3 Kg5 49. c5 a5 50. g4 h5 51. gxh5 Kxh5 52. Kg3 Kg5 53. a3 Kf5 54. Kh4 Ke5 55. Kg5 Kd5 56. Kf4 Kxc5 57. Kxe4 b5 58. Ke5 a4 59. b4+ Kc4 60. Kd6 Kb3 61. e4 Kxa3 62. e5 Kxb4 63. e6 a3 64. e7 a2 65. e8Q a1Q 66. Qe4+ Ka5 67. Kxc6 Qc3+ 68. Kb7 b4 69. Qd5+ Ka4 70. Qa2+ Qa3 71. Qc2+ b3 72. Qc6+ Kb4 73. Qd6+ Ka4 74. Qa6+ Kb4 75. Qd6+ Ka4 76. Qa6+ 1/2-1/2

[Event "Cali op-C 11th"]
[Site "Cali"]
[Date "2009.12.26"]
[Round "1.3"]
[White "Cayon, Diego Mauricio"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "1685"]
[BlackElo "1600"]
[PlyCount "65"]
[EventDate "2009.12.26"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "COL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. g3 Bf5 4. Bg2 e6 5. Nf3 Bb4+ 6. Nc3 Nf6 7. 0-0 0-0 8. Qb3 Bxc3 9. bxc3 b6 10. Ne5 Nfd7 11. f4 Nxe5 12. fxe5 Nd7 13. Ba3 Re8 14. Rxf5 exf5 15. cxd5 c5 16. e6 c4 17. Qxc4 Rc8 18. Qd3 fxe6 19. dxe6 Nf6 20. d5 Ne4 21. Bxe4 fxe4 22. Qxe4 Rxc3 23. Bb4 Rc8 24. d6 Qf6 25. Rf1 Rxe6 26. d7 Rd8 27. Qc4 Qe5 28. Qc8 Qd4+ 29. e3 Qxe3+ 30. Rf2 Rf6 31. Qxd8+ Kf7 32. Qf8+ Kg6 33. Qe8+ 1-0

[Event "Cali op"]
[Site "Cali"]
[Date "2008.12.29"]
[Round "8"]
[White "Geurts, Harrie Tulio"]
[Black "Diaz Cristian, Camilo"]
[Result "0-1"]
[ECO "E14"]
[BlackElo "2048"]
[PlyCount "96"]
[EventDate "2008.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 128 Extra"]
[Source "ChessBase"]
[SourceDate "2009.03.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.03.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. e3 b6 4. Nf3 Bb7 5. Be2 Be7 6. 0-0 0-0 7. a3 Ne4 8. Nc3 Nxc3 9. bxc3 c5 10. d5 Qc7 11. e4 d6 12. Bd3 Nd7 13. Bg5 Nf6 14. Re1 h6 15. Bd2 e5 16. Qc1 Bc8 17. Nh4 Qd8 18. Nf5 Bxf5 19. exf5 Nh7 20. Re3 Bg5 21. Rg3 Bxd2 22. Qxd2 Qf6 23. Re1 Kh8 24. Re4 Rae8 25. Reg4 Rg8 26. h4 Qe7 27. Qc2 Nf6 28. Rg5 hxg5 29. hxg5 Nh5 30. f6 gxf6 31. Rh3 Rxg5 32. Qe2 Kg7 33. Rxh5 Rxh5 34. Qxh5 Rh8 35. Qg4+ Kf8 36. Qc8+ Qe8 37. Qc7 Kg7 38. Qxd6 Qa4 39. Bf1 Qe8 40. Qd7 Rh4 41. Qxa7 Qh8 42. g3 Rh1+ 43. Kg2 Qh2+ 44. Kf3 Rxf1 45. Kg4 f5+ 46. Kg5 Qxf2 47. Qxb6 Qxg3+ 48. Kh5 Rh1# 0-1

[Event "Cali op"]
[Site "Cali"]
[Date "2008.12.29"]
[Round "7"]
[White "Geurts, Harrie Tulio"]
[Black "Ospina, Jhonny"]
[Result "0-1"]
[ECO "E61"]
[BlackElo "2097"]
[PlyCount "72"]
[EventDate "2008.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 128 Extra"]
[Source "ChessBase"]
[SourceDate "2009.03.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.03.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. e3 Bg7 4. Nf3 0-0 5. Nc3 d6 6. Be2 Nbd7 7. 0-0 e5 8. Qc2 c6 9. Rd1 Ng4 10. h3 Nh6 11. dxe5 dxe5 12. e4 Qe7 13. Bg5 f6 14. Be3 Nf7 15. Rd2 Nd8 16. Rad1 Ne6 17. a3 f5 18. exf5 gxf5 19. Rd6 e4 20. Ne1 Be5 21. Rxe6 Qxe6 22. c5 Qg6 23. Bc4+ Kh8 24. Bd4 Bxd4 25. Rxd4 Nxc5 26. Qd2 Be6 27. Rd6 Qf7 28. Qd4+ Kg8 29. Bxe6 Nxe6 30. Qe5 Rfe8 31. Nc2 Rad8 32. Ne3 Rxd6 33. Qxd6 Rd8 34. Qe5 Nd4 35. Qg3+ Qg7 36. Qh4 Nf3+ 0-1

[Event "Cali op"]
[Site "Cali"]
[Date "2008.12.28"]
[Round "5"]
[White "Geurts, Harrie Tulio"]
[Black "Herrera, Juan Sebastian"]
[Result "0-1"]
[ECO "D45"]
[BlackElo "2109"]
[PlyCount "36"]
[EventDate "2008.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 128 Extra"]
[Source "ChessBase"]
[SourceDate "2009.03.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.03.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. e3 Nf6 4. Nc3 e6 5. a3 Nbd7 6. Nf3 Bd6 7. cxd5 exd5 8. Be2 0-0 9. Bd2 Qe7 10. Qc2 Ne4 11. 0-0 f5 12. Be1 Rf6 13. Nd2 Bxh2+ 14. Kh1 Rh6 15. Ndxe4 Bg3+ 16. Kg1 Rh1+ 17. Kxh1 Qh4+ 18. Kg1 Qh2# 0-1

[Event "Cali op"]
[Site "Cali"]
[Date "2008.12.28"]
[Round "6"]
[White "Labrador, John"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "D35"]
[PlyCount "71"]
[EventDate "2008.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 128 Extra"]
[Source "ChessBase"]
[SourceDate "2009.03.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.03.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 0-0 6. e3 c6 7. cxd5 exd5 8. Bd3 Bg4 9. Qc2 h6 10. Bxf6 Bxf6 11. h3 Be6 12. 0-0 Qc8 13. Ne2 Nd7 14. Nf4 Nb6 15. Nxe6 fxe6 16. b4 a6 17. a4 Nd7 18. Rac1 e5 19. Bf5 Qe8 20. Bxd7 Qxd7 21. dxe5 Bd8 22. Nd4 Qe7 23. f4 Bb6 24. Rb1 Bxd4 25. exd4 Qh4 26. Qf2 Qe7 27. f5 Qg5 28. Qf4 Qxf4 29. Rxf4 Rae8 30. b5 axb5 31. axb5 c5 32. e6 Rxe6 33. fxe6 Rxf4 34. dxc5 Rc4 35. c6 bxc6 36. b6 1-0

[Event "Cali op"]
[Site "Cali"]
[Date "2008.12.27"]
[Round "4"]
[White "Arenas Vanegas, David"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "C91"]
[WhiteElo "2323"]
[PlyCount "101"]
[EventDate "2008.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 128 Extra"]
[Source "ChessBase"]
[SourceDate "2009.03.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.03.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Be7 6. 0-0 d6 7. c3 Nf6 8. Re1 0-0 9. d4 Bg4 10. Be3 Na5 11. Bc2 Nc4 12. Bc1 Nd7 13. b3 Ncb6 14. h3 Bxf3 15. Qxf3 Bg5 16. Nd2 Qf6 17. Qd3 Rfe8 18. Bb2 Qh6 19. Nf3 Re6 20. Nh2 Qh4 21. Bd1 Rf6 22. Ng4 Rg6 23. Qf3 Nf6 24. dxe5 Nxg4 25. Qxg4 Qxg4 26. Bxg4 dxe5 27. Red1 Rd8 28. Rxd8+ Bxd8 29. Ba3 Rc6 30. Rd1 Bf6 31. Bb4 g6 32. Kf1 h5 33. Bd7 Nxd7 34. Rxd7 Bg5 35. Ke2 h4 36. Ba5 f5 37. Kd3 Rd6+ 38. Rxd6 cxd6 39. Bc7 Be7 40. a4 Kf7 41. f3 Ke6 42. axb5 axb5 43. c4 bxc4+ 44. Kxc4 Kd7 45. Ba5 Kc6 46. b4 Bg5 47. b5+ Kd7 48. Kd5 Be3 49. Bb4 fxe4 50. fxe4 Bf4 51. Bxd6 1-0

[Event "Cali op"]
[Site "Cali"]
[Date "2008.12.27"]
[Round "3"]
[White "Prieto, Ernesto"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "C62"]
[WhiteElo "2181"]
[PlyCount "53"]
[EventDate "2008.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 128 Extra"]
[Source "ChessBase"]
[SourceDate "2009.03.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.03.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 exd4 5. Nxd4 Bd7 6. Nf3 Bc8 7. Qd4 Bd7 8. Bxc6 Bxc6 9. Nc3 Nf6 10. Bg5 Be7 11. 0-0-0 h6 12. Bf4 Nh5 13. Bd2 Bf6 14. Qd3 g5 15. g4 Ng7 16. Nd5 Ne6 17. Bc3 Bxc3 18. Qxc3 Kd7 19. Ne5+ Ke8 20. Nxc6 bxc6 21. Qxh8+ Nf8 22. Nf6+ Ke7 23. Qxh6 Ne6 24. Nh5 Kd7 25. Qf6 Qxf6 26. Nxf6+ Ke7 27. Nh5 1-0

[Event "Manizales op 20th"]
[Site "Manizales"]
[Date "2008.01.13"]
[Round "6"]
[White "Geurts, Harrie Tulio"]
[Black "Aparicio, Jose Ignacio"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1600"]
[BlackElo "1607"]
[PlyCount "38"]
[EventDate "2008.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c3 Nf6 3. Bf4 e6 4. e3 Be7 5. Nd2 0-0 6. Bd3 Nbd7 7. h4 c5 8. h5 Re8 9. h6 g6 10. Qf3 Bf8 11. g4 e5 12. dxe5 Nxe5 13. Bxe5 Rxe5 14. Qg2 Nxg4 15. Be2 Nxh6 16. Ngf3 Qf6 17. Nxe5 Qxe5 18. Nf3 Qg7 19. 0-0-0 Be6 1-0

[Event "Manizales op 20th"]
[Site "Manizales"]
[Date "2008.01.12"]
[Round "4"]
[White "Geurts, Harrie Tulio"]
[Black "Morales, Jaime Andres"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1600"]
[BlackElo "1713"]
[PlyCount "56"]
[EventDate "2008.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c3 Nd7 3. Nf3 e6 4. Bf4 Ne7 5. e3 Ng6 6. Bg3 Bd6 7. Bd3 Bxg3 8. hxg3 Qf6 9. Nbd2 e5 10. dxe5 Ndxe5 11. Be2 Bf5 12. Nxe5 Nxe5 13. Nf3 0-0-0 14. Nxe5 Qxe5 15. Bd3 Be4 16. Bxe4 dxe4 17. Qe2 Rd3 18. 0-0 Rhd8 19. Rfd1 c5 20. a4 c4 21. a5 f5 22. a6 b6 23. Rxd3 cxd3 24. Qd2 Qd5 25. Ra4 Qb3 26. Ra1 Rd6 27. c4 Qc2 28. Qb4 Kc7 0-1

[Event "Manizales op 20th"]
[Site "Manizales"]
[Date "2008.01.11"]
[Round "2"]
[White "Geurts, Harrie Tulio"]
[Black "Zuluaga Alzate, Gustavo"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1600"]
[BlackElo "1620"]
[PlyCount "59"]
[EventDate "2008.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Nxd4 6. Qxd4 d6 7. e5 dxe5 8. Qxd8+ Kxd8 9. Bg5 c6 10. 0-0-0+ Kc7 11. Bc4 Ng4 12. Rdf1 f6 13. Bd2 h5 14. h3 Nh6 15. f4 Bd6 16. Ne4 Nf5 17. Rf3 Be7 18. fxe5 fxe5 19. Bc3 Bf6 20. Rd1 Rd8 21. Bd3 Nd4 22. Bxd4 exd4 23. Nxf6 gxf6 24. Rxf6 c5 25. Rh6 Rg8 26. Rg1 Bxh3 27. Be4 Bd7 28. Rxh5 Kb6 29. b3 Rg7 30. a4 1/2-1/2

[Event "Manizales op 20th"]
[Site "Manizales"]
[Date "2008.01.10"]
[Round "1"]
[White "Montoya, Duvan"]
[Black "Geurts, Harrie Tulio"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "1813"]
[BlackElo "1600"]
[PlyCount "19"]
[EventDate "2008.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "COL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 d6 3. Nf3 Bg4 4. Bc4 Nc6 5. 0-0 Nd4 6. Bxf7+ Ke7 7. Bxg8 Rxg8 8. Nc3 Nxf3+ 9. gxf3 Bh3 10. Rf2 1-0

