[Event "Medellin Americas op"]
[Site "Medellin"]
[Date "2009.11.16"]
[Round "9"]
[White "Osorio Velez, Anderson"]
[Black "Arenas, Santiago"]
[Result "1-0"]
[ECO "C72"]
[PlyCount "103"]
[EventDate "2009.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[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. Bb5 a6 4. Ba4 d6 5. 0-0 Bd7 6. d4 exd4 7. Nxd4 Nxd4 8. Qxd4 Bxa4 9. Qxa4+ Qd7 10. Nc3 Qxa4 11. Nxa4 0-0-0 12. Bf4 d5 13. Rae1 dxe4 14. Rxe4 Nf6 15. Re2 Bd6 16. Bxd6 Rxd6 17. h3 b5 18. Nc3 Kb7 19. Ne4 Nxe4 20. Rxe4 Rd2 21. Rc1 f5 22. Re7 g6 23. Kf1 Kc6 24. Re6+ Rd6 25. Rxd6+ Kxd6 26. Rd1+ Kc6 27. Rc1 h5 28. c4 g5 29. cxb5+ Kxb5 30. Rxc7 Kb6 31. Rf7 f4 32. Rg7 g4 33. hxg4 hxg4 34. Rxg4 f3 35. gxf3 Rc8 36. f4 Rc2 37. a4 Kc6 38. Rg6+ Kb7 39. f5 Rxb2 40. a5 Rb1+ 41. Kg2 Re1 42. f6 Re8 43. f7 Rf8 44. Rf6 Ka7 45. Kg3 Kb7 46. Kg4 Kc7 47. Kg5 Kd7 48. Kg6 Ke7 49. Kg7 Rxf7+ 50. Rxf7+ Kd6 51. Rf6+ Ke7 52. Rxa6 1-0

[Event "Medellin Americas op"]
[Site "Medellin"]
[Date "2009.11.16"]
[Round "8"]
[White "Soto, Arturo Luis"]
[Black "Arenas, Santiago"]
[Result "1/2-1/2"]
[ECO "C62"]
[PlyCount "109"]
[EventDate "2009.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[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. d4 d6 4. Bb5 Bd7 5. Nc3 exd4 6. Nxd4 Nxd4 7. Bxd7+ Qxd7 8. Qxd4 0-0-0 9. Qxa7 Qc6 10. 0-0 Qa6 11. Qxa6 bxa6 12. Bf4 Nf6 13. Rfe1 d5 14. Rad1 Bb4 15. a3 Bxc3 16. bxc3 dxe4 17. Bg5 Rxd1 18. Rxd1 h6 19. Bxf6 gxf6 20. Re1 f5 21. f3 exf3 22. gxf3 Rg8+ 23. Kf2 Kb7 24. Re7 Rg7 25. f4 Kb6 26. Re5 c5 27. Rxf5 c4 28. Rf6+ Kb5 29. Rxh6 a5 30. Rh5+ Ka4 31. Rc5 Kxa3 32. Rxa5+ Kb2 33. Rc5 Kxc3 34. Rc7 Rh7 35. Kg1 Rg7+ 36. Kh1 Kxc2 37. Rxc4+ Kd3 38. Ra4 Ke3 39. f5 Kf2 40. Ra2+ Kf1 41. Ra1+ Kf2 42. Ra2+ Kf3 43. Ra5 Kf2 44. Ra2+ Kf3 45. f6 Rg6 46. Ra6 Kf4 47. h3 Ke5 48. Kh2 Rxf6 49. Rxf6 Kxf6 50. Kg3 Kg6 51. Kg4 f5+ 52. Kg3 Kg5 53. Kf3 f4 54. h4+ Kxh4 55. Kxf4 1/2-1/2

[Event "Medellin Americas op"]
[Site "Medellin"]
[Date "2009.11.14"]
[Round "5"]
[White "Montoya Gaviria, Mateo"]
[Black "Arenas, Santiago"]
[Result "1-0"]
[ECO "C57"]
[PlyCount "115"]
[EventDate "2009.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[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. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+ Ke8 8. Bxd5 Qf6 9. Bxc6+ Qxc6 10. Qh5+ Qg6 11. Qxe5+ Be7 12. 0-0 Qf6 13. Qxc7 Qg6 14. Re1 Qg5 15. d4 Qf6 16. Nc3 Be6 17. d5 Rc8 18. Qxb7 Bd7 19. Ne4 Qb6 20. Qxb6 axb6 21. Nd6+ Kf8 22. Nxc8 Bxc8 23. Bf4 Bf6 24. d6 Bd7 25. c4 Kf7 26. Be5 Bxe5 27. Rxe5 Bc6 28. Rd1 Rd8 29. d7 Bb7 30. Rd6 Ba8 31. Rxb6 Rxd7 32. f4 Rd1+ 33. Kf2 Rd2+ 34. Ke3 Rd7 35. c5 Bxg2 36. c6 Rc7 37. b4 Bxc6 38. Rc5 Re7+ 39. Kd4 Be8 40. Rb8 Re2 41. Rc7+ Kf8 42. Kc5 Rxa2 43. Rcc8 Re2 44. b5 Kf7 45. Rxe8 Rxe8 46. Rxe8 Kxe8 47. Kc6 Ke7 48. b6 Ke6 49. b7 Kf5 50. b8Q Kg4 51. Qb2 Kxf4 52. Qb8+ Kg4 53. Qg3+ Kh5 54. Qxg7 h6 55. Kd5 Kh4 56. Ke4 Kh5 57. Kf4 Kh4 58. Qg4# 1-0

[Event "Medellin Americas op"]
[Site "Medellin"]
[Date "2009.11.13"]
[Round "2"]
[White "Arenas, Santiago"]
[Black "Garces Munoz, Daniel"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "70"]
[EventDate "2009.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bd3 d6 5. h3 0-0 6. a3 Ba5 7. b4 Bb6 8. 0-0 c6 9. Bb2 Qe7 10. b5 Nbd7 11. bxc6 bxc6 12. Be2 Rb8 13. Qc1 h6 14. Kh1 Nc5 15. d4 Ncxe4 16. Nxe4 Nxe4 17. Qe3 f5 18. Nd2 d5 19. f3 f4 20. Qd3 Ng3+ 21. Kg1 Bf5 22. Qc3 Nxe2+ 23. Kh1 Nxc3 24. Bxc3 exd4 25. Bb4 c5 26. Rfe1 Qh4 27. Bxc5 Bxc5 28. Nb3 Rxb3 29. cxb3 Bxh3 30. Ra2 Qxe1+ 31. Kh2 Qg3+ 32. Kh1 d3 33. b4 Qe1+ 34. Kh2 Bg1+ 35. Kxh3 Qg3# 0-1

[Event "Medellin Americas op"]
[Site "Medellin"]
[Date "2009.11.12"]
[Round "1"]
[White "Vallejo, Humberto"]
[Black "Arenas, Santiago"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "33"]
[EventDate "2009.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. c3 Nc6 3. d4 exd4 4. cxd4 d5 5. exd5 Qxd5 6. Nf3 Bg4 7. Be2 h6 8. Nc3 Bb4 9. 0-0 Bxc3 10. bxc3 0-0-0 11. c4 Qd7 12. d5 Bxf3 13. Bxf3 Ne5 14. Be2 Nf6 15. Qd4 Nc6 16. Qe3 Ne7 17. Qxa7 1-0

