[Event "Bogota University op 7th"]
[Site "Bogota"]
[Date "2013.10.12"]
[Round "5"]
[White "Contreras, Rolando"]
[Black "Gomez Ledo, Roberto Carlos"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2216"]
[BlackElo "2426"]
[PlyCount "94"]
[EventDate "2013.10.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. 0-0 0-0 7. Re1 c6 8. a4 a5 9. b3 exd4 10. Nxd4 Ne5 11. Bf1 d5 12. f4 Bb4 13. Bb2 Neg4 14. h3 Nh6 15. e5 Ne4 16. Nxe4 Bxe1 17. Qxe1 dxe4 18. Qxe4 c5 19. Bd3 g6 20. Nb5 Bf5 21. Qc4 Ra6 22. Nd6 Qh4 23. Qxc5 Bxd3 24. cxd3 Nf5 25. Nxf5 gxf5 26. e6 Rxe6 27. Qxf5 Re2 28. Bd4 Rd8 29. Qf6 Qxf6 30. Bxf6 Rxd3 31. Rc1 Re8 32. Rc5 Rxb3 33. Rxa5 h6 34. Rh5 Kh7 35. f5 Rb6 36. Bg5 Re5 37. Bd8 Rc6 38. a5 Rcc5 39. Rh4 Rxf5 40. Rb4 Rb5 41. Re4 Rb1+ 42. Kh2 Rb2 43. h4 Rff2 44. Rg4 f5 45. Rg3 f4 46. Rg4 f3 47. Bf6 Rxg2+ 0-1

[Event "Bogota University op 7th"]
[Site "Bogota"]
[Date "2013.10.12"]
[Round "6"]
[White "Tirado, Juan Camilo"]
[Black "Contreras, Rolando"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2018"]
[BlackElo "2216"]
[PlyCount "59"]
[EventDate "2013.10.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 6. Be2 e6 7. Be3 cxd4 8. cxd4 Bb4+ 9. Nc3 Bxc3+ 10. bxc3 0-0 11. h3 Bh5 12. 0-0 Nbd7 13. c4 Qa5 14. Qb3 Qc7 15. Rab1 b6 16. Rfc1 Rac8 17. Qa3 Rfd8 18. c5 bxc5 19. dxc5 Nd5 20. Ba6 Nxe3 21. Qxe3 Rb8 22. c6 Nb6 23. Qe5 Qxe5 24. Nxe5 Rf8 25. c7 Rbc8 26. Bxc8 Rxc8 27. Nc4 Nxc4 28. Rxc4 Kf8 29. Rcc1 Ke7 30. Rb8 1-0

[Event "Bogota University op 7th"]
[Site "Bogota"]
[Date "2013.10.11"]
[Round "4"]
[White "Contreras, Rolando"]
[Black "Rodriguez Velasco, German Enrique"]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "2216"]
[BlackElo "1969"]
[PlyCount "40"]
[EventDate "2013.10.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 d5 5. Nbd2 Nf6 6. Bg2 Bd6 7. 0-0 0-0 8. Re1 Bc7 9. Qe2 dxe4 10. dxe4 e5 11. c3 Be6 12. Nf1 a6 13. Bg5 h6 14. Bxf6 Qxf6 15. Ne3 b5 16. Nd5 Qd8 17. Nh4 Ne7 18. Rad1 Bxd5 19. exd5 Bd6 20. Qh5 Qd7 1-0

[Event "Bogota University op 7th"]
[Site "Bogota"]
[Date "2013.10.11"]
[Round "3"]
[White "Vargas, Diana Paola"]
[Black "Contreras, Rolando"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1802"]
[BlackElo "2216"]
[PlyCount "78"]
[EventDate "2013.10.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 g6 3. Bg5 Bg7 4. Nf3 d6 5. Qd2 h6 6. Bh4 a6 7. e4 g5 8. Bg3 Nh5 9. a4 b6 10. Be2 Bb7 11. 0-0-0 Nd7 12. Ne1 Nxg3 13. hxg3 c5 14. d5 b5 15. f4 gxf4 16. Qxf4 Qa5 17. Bh5 Bf6 18. Bg4 bxa4 19. Bxd7+ Kxd7 20. Qf5+ Kc7 21. Nf3 a3 22. e5 axb2+ 23. Kxb2 dxe5 24. d6+ Kb8 25. dxe7 Qb6+ 26. Kc1 e4 27. Rxh6 Rxh6 28. e8Q+ Ka7 29. Qxf7 Bxc3 30. Qb3 Rf6 31. Qxb6+ Kxb6 32. Qd7 exf3 33. Rd6+ Rxd6 34. Qxd6+ Bc6 35. gxf3 Re8 36. Kb1 Re1+ 37. Ka2 c4 38. Qb8+ Ka5 39. Qd8+ Ka4 0-1

[Event "Bogota University op 7th"]
[Site "Bogota"]
[Date "2013.10.10"]
[Round "2"]
[White "Contreras, Rolando"]
[Black "Ruiz Sanchez, Orlen"]
[Result "0-1"]
[ECO "B91"]
[WhiteElo "2216"]
[BlackElo "2420"]
[PlyCount "318"]
[EventDate "2013.10.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Nbd7 8. Bg2 b5 9. 0-0 Bb7 10. h3 Rc8 11. Bg5 Be7 12. Qd2 0-0 13. a4 b4 14. Bxf6 Nxf6 15. Nd5 Nxd5 16. exd5 a5 17. c3 bxc3 18. Nxc3 f5 19. Rfd1 Qb6 20. Bf1 Bf6 21. Bb5 Rf7 22. Rac1 Rc5 23. b3 Qd8 24. Bc4 e4 25. Ne2 Bg5 26. Nf4 Rfc7 27. Rc2 Qa8 28. Qe3 Ba6 29. Rdc1 Bxc4 30. bxc4 Qc8 31. h4 Bh6 32. Kg2 Qe8 33. Rb2 Rxc4 34. Rxc4 Rxc4 35. Rb6 Qd8 36. Rc6 Bxf4 37. Qxf4 Rxc6 38. dxc6 Qc7 39. Qxf5 Qxc6 40. Qxa5 e3+ 41. Kf1 Qc1+ 42. Ke2 Qb2+ 43. Kxe3 Qb3+ 44. Kd4 Qd1+ 45. Kc4 Qe2+ 46. Kb3 Qd1+ 47. Kb4 Qb1+ 48. Kc4 Qc2+ 49. Kb5 Qc5+ 50. Ka6 Qc6+ 51. Ka7 Qd7+ 52. Kb6 d5 53. Qb5 Qd6+ 54. Qc6 Qxc6+ 55. Kxc6 d4 56. a5 d3 57. a6 d2 58. a7 d1Q 59. a8Q+ Kf7 60. Qa7+ Kf6 61. Qe3 Qa4+ 62. Kd5 Qb5+ 63. Kd4 Qb2+ 64. Kd3 Qb5+ 65. Kd2 Qb2+ 66. Ke1 Qb1+ 67. Ke2 Qc2+ 68. Kf1 h6 69. Kg2 Kg6 70. g4 Kh7 71. h5 Qc6+ 72. Kg3 Kh8 73. f4 Qh1 74. Qe8+ Kh7 75. g5 Qg1+ 76. Kh3 Qh1+ 77. Kg3 Qg1+ 78. Kf3 Qf1+ 79. Kg4 Qg2+ 80. Kf5 Qh3+ 81. Ke4 Qh1+ 82. Kd4 Qd1+ 83. Kc5 Qc2+ 84. Kd6 hxg5 85. fxg5 Qd2+ 86. Kc5 Qxg5+ 87. Kd4 Qd2+ 88. Kc4 Qc2+ 89. Kd4 Qd1+ 90. Kc4 Qc1+ 91. Kd3 Qd1+ 92. Kc3 Qa1+ 93. Kd3 Qf6 94. Ke2 Kh6 95. Qh8+ Kg5 96. Qe8 Qf5 97. Qh8 Qf7 98. Ke3 Qf6 99. Qe8 Qf4+ 100. Kd3 Qf3+ 101. Kd2 Qf2+ 102. Kd3 Qf3+ 103. Kd2 Qf6 104. Ke3 Qh6 105. Qe5+ Kg4+ 106. Ke2 Qg5 107. Qh2 Qxh5 108. Qg2+ Kf4+ 109. Kd2 Qa5+ 110. Kd3 Qb5+ 111. Kc3 Qe5+ 112. Kb3 Qe3+ 113. Kb2 g5 114. Qh2+ Kg4 115. Qg2+ Qg3 116. Qe4+ Kh3 117. Qh7+ Kg2 118. Kc1 g4 119. Kd2 Qf2+ 120. Kc3 g3 121. Kb4 Kg1 122. Ka4 Qa2+ 123. Kb5 g2 124. Qe4 Qb3+ 125. Ka6 Kf2 126. Qh4+ Qg3 127. Qd4+ Qe3 128. Qh4+ Ke2 129. Qh5+ Qf3 130. Qe5+ Kf1 131. Qa1+ Kf2 132. Qd4+ Qe3 133. Qh4+ Kg1 134. Kb7 Qf2 135. Qh5 Qb2+ 136. Ka8 Qa3+ 137. Kb7 Qg3 138. Qd1+ Kh2 139. Qh5+ Qh3 140. Qe5+ Kh1 141. Qe4 Qh6 142. Ka8 Qa6+ 143. Kb8 Qf1 144. Qh4+ Kg1 145. Ka8 Qf3+ 146. Kb8 Kf1 147. Qc4+ Kf2 148. Qd4+ Kg3 149. Qg7+ Kh2 150. Qh6+ Qh3 151. Qd2 Qh8+ 152. Kb7 Qf6 153. Ka7 Qe7+ 154. Ka8 Qa3+ 155. Kb7 Qb3+ 156. Ka8 Qa4+ 157. Kb8 Qb5+ 158. Ka8 Qc6+ 159. Ka7 Kh1 0-1

[Event "Bogota University op 7th"]
[Site "Bogota"]
[Date "2013.10.10"]
[Round "1"]
[White "Perez Rodriguez, Luis Manuel"]
[Black "Contreras, Rolando"]
[Result "0-1"]
[ECO "B96"]
[WhiteElo "2416"]
[BlackElo "2216"]
[PlyCount "50"]
[EventDate "2013.10.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qc7 8. Bxf6 gxf6 9. f5 Nc6 10. fxe6 fxe6 11. Bc4 Nxd4 12. Qxd4 Rg8 13. 0-0-0 Bd7 14. Bb3 Rxg2 15. Qxf6 Bg7 16. Qf3 Rg6 17. Ne2 0-0-0 18. Kb1 Rf8 19. Qh3 Qc5 20. c3 Rf2 21. Nd4 Rgg2 22. Nc2 Be5 23. Qd3 a5 24. a4 b5 25. Rhg1 Rxc2 0-1

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2003.06.10"]
[Round "3"]
[White "Contreras, Rolando"]
[Black "Rodriguez Aleman, Eduardo"]
[Result "0-1"]
[ECO "D35"]
[PlyCount "72"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 e6 4. cxd5 exd5 5. e3 Bd6 6. Bd3 0-0 7. Nge2 Be6 8. f3 c5 9. Bd2 Nbd7 10. Nb5 Be7 11. e4 dxe4 12. fxe4 a6 13. Nbc3 cxd4 14. Nxd4 Ne5 15. Be3 Nfg4 16. Nxe6 Nxd3+ 17. Ke2 fxe6 18. Qxd3 Qxd3+ 19. Kxd3 Rad8+ 20. Ke2 Nxe3 21. Kxe3 Bc5+ 22. Ke2 Rf2+ 23. Ke1 Rxb2 24. Ne2 Rdd2 25. Nf4 e5 26. Ne6 Re2+ 27. Kf1 Rf2+ 28. Kg1 Rxg2+ 29. Kf1 Rbf2+ 30. Ke1 Bb4+ 31. Kd1 Rd2+ 32. Kc1 Ba3+ 33. Kb1 Rb2+ 34. Kc1 Rxa2+ 35. Kb1 Rgb2+ 36. Kc1 Rxa1# 0-1

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2003.06.09"]
[Round "2"]
[White "Tokman, Ariel"]
[Black "Contreras, Rolando"]
[Result "0-1"]
[ECO "A45"]
[PlyCount "96"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. e4 d6 4. Bd3 Be7 5. Nd2 h6 6. Bh4 Nc6 7. c3 Qd7 8. Bg3 e5 9. Bb5 a6 10. Bxc6 Qxc6 11. dxe5 Nxe4 12. Ngf3 Nxg3 13. hxg3 dxe5 14. Nxe5 Qxg2 15. Rf1 Qd5 16. Qe2 Bh3 17. Rg1 0-0-0 18. c4 Qe6 19. 0-0-0 f6 20. Qh5 fxe5 21. g4 Bxg4 22. Qxg4 Qxg4 23. Rxg4 Bg5 24. Kc2 Rhf8 25. Ne4 Rxd1 26. Kxd1 Rf4 27. Rxf4 Bxf4 28. Ke2 Kd7 29. b3 b6 30. Nc3 c6 31. a4 a5 32. Kf3 h5 33. Ne4 Ke6 34. Nc3 g5 35. Ne4 g4+ 36. Kg2 h4 37. Kg1 g3 38. fxg3 hxg3 39. Kg2 Kf5 40. Nd6+ Kg4 41. Ne4 c5 42. Nd6 Bd2 43. Ne4 Be1 44. Nf6+ Kf4 45. Nd5+ Ke4 46. Nxb6 Kd4 47. Nd5 e4 48. Kf1 e3 0-1

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2003.06.??"]
[Round "4"]
[White "Angel, Juan Daniel"]
[Black "Contreras, Rolando"]
[Result "0-1"]
[ECO "B18"]
[PlyCount "64"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Nc3 e6 6. Be3 Nf6 7. Bd3 Bg6 8. Bxg6 hxg6 9. a3 Nd5 10. Nxd5 cxd5 11. Qd3 Qc7 12. Nf3 Bd6 13. Ne5 Bxe5 14. dxe5 Qxe5 15. Qb5+ Nd7 16. 0-0-0 Qc7 17. g3 Qc6 18. Qxc6 bxc6 19. Rd4 c5 20. Rd2 d4 21. Rhd1 Rd8 22. Bf4 Rxh2 23. g4 Rh3 24. c3 f6 25. Bg3 e5 26. cxd4 cxd4 27. b4 Nb6 28. Rd3 Na4 29. f4 Rc8+ 30. Kd2 Nb2 31. Rb3 Nxd1 32. Kxd1 exf4 0-1

[Event "Pan American-ch U12"]
[Site "Bogota"]
[Date "2003.06.??"]
[Round "7"]
[White "Contreras, Rolando"]
[Black "Villavicencio, Edgar"]
[Result "1-0"]
[ECO "D32"]
[PlyCount "65"]
[EventDate "2003.06.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. e3 c5 6. Bd3 Nc6 7. Nf3 Bg4 8. Be2 Be7 9. h3 Bh5 10. 0-0 0-0 11. dxc5 Bxc5 12. Qb3 Qc7 13. Nxd5 Nxd5 14. Qxd5 Bxf3 15. Bxf3 Bd6 16. b3 Rad8 17. Qc4 Ne5 18. Qxc7 Nxf3+ 19. gxf3 Bxc7 20. e4 f5 21. Be3 fxe4 22. fxe4 Rf6 23. Bxa7 b6 24. Rac1 Rf7 25. Rxc7 Rxc7 26. Bxb6 Rdc8 27. Bxc7 Rxc7 28. a4 Rc3 29. b4 Rc4 30. Rb1 Rxe4 31. a5 Kf8 32. a6 Ke8 33. a7 1-0

