[Event "Pan American-ch U08"]
[Site "Medellin"]
[Date "2007.07.07"]
[Round "9"]
[White "Contreras Almuna, Matias"]
[Black "Vieira Da Cunha, Miguel Martuscello"]
[Result "1-0"]
[ECO "A00"]
[PlyCount "77"]
[EventDate "2007.07.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e3 e5 2. Bd3 d5 3. Ne2 Nf6 4. 0-0 Nc6 5. c3 Bf5 6. Bxf5 Bd6 7. Bc2 0-0 8. d4 e4 9. f4 exf3 10. gxf3 Qe7 11. b3 Rfe8 12. a4 a5 13. Bd2 Qd7 14. f4 Qg4+ 15. Kf2 Qh4+ 16. Kf3 Qh3+ 17. Ng3 Ne4 18. Bxe4 dxe4+ 19. Ke2 Qxh2+ 20. Rf2 Qxg3 21. d5 Qg4+ 22. Ke1 Qxd1+ 23. Kxd1 Ne7 24. c4 Nf5 25. Nc3 Bc5 26. Nb5 Rac8 27. Bxa5 Nxe3+ 28. Kd2 Nxc4+ 29. bxc4 Bxf2 30. Nxc7 e3+ 31. Ke2 Re7 32. c5 Rexc7 33. Bxc7 Rxc7 34. Rc1 b6 35. d6 Rc8 36. d7 Rd8 37. c6 Kf8 38. c7 Ke7 39. c8Q 1-0

[Event "Pan American-ch U08"]
[Site "Medellin"]
[Date "2007.07.06"]
[Round "8"]
[White "Quinonez Garcia, Santiago"]
[Black "Contreras Almuna, Matias"]
[Result "1/2-1/2"]
[ECO "B00"]
[PlyCount "130"]
[EventDate "2007.07.02"]
[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 e6 2. d4 d6 3. Nf3 b6 4. Nc3 Bb7 5. Bb5+ c6 6. Be2 Nd7 7. 0-0 c5 8. dxc5 Nxc5 9. Bd3 g6 10. Bd2 Bg7 11. Re1 Qc7 12. Qe2 0-0-0 13. Rad1 Ne7 14. Bg5 f6 15. Bd2 Rhe8 16. a3 Nd7 17. Bb5 Bc6 18. Bxc6 Nxc6 19. b4 f5 20. b5 Ncb8 21. Qd3 Ne5 22. Qe3 Nc4 23. Qd3 Nb2 24. Qe3 Nxd1 25. Rxd1 Bxc3 26. Bxc3 d5 27. exd5 exd5 28. Qd2 a6 29. a4 a5 30. Re1 Rxe1+ 31. Qxe1 Nd7 32. Qd2 Qd6 33. h3 h5 34. Bd4 Kb7 35. Ng5 Qb4 36. Bc3 Qb1+ 37. Kh2 Qa2 38. Qd4 Nc5 39. Bxa5 Qxa4 40. Qg7+ Nd7 41. Qe7 bxa5 42. Qxd8 Qxb5 43. Ne6 Qc6 44. Nd4 Qc8 45. Qxa5 Qc7+ 46. Qxc7+ Kxc7 47. Kg1 Kd6 48. Kf1 Ke5 49. c3 Ke4 50. Ke2 g5 51. g3 Nc5 52. f3+ Ke5 53. h4 gxh4 54. gxh4 Na4 55. Kd3 Kf4 56. c4 dxc4+ 57. Kxc4 Nb6+ 58. Kc5 Nd7+ 59. Kd6 Ne5 60. Ke6 Ng6 61. Nxf5 Kxf3 62. Kf6 Nf4 63. Kg5 Ke4 64. Ng7 Ng2 65. Nxh5 Nxh4 1/2-1/2

[Event "Pan American-ch U08"]
[Site "Medellin"]
[Date "2007.07.05"]
[Round "7"]
[White "Contreras Almuna, Matias"]
[Black "Plata, Juan David"]
[Result "1-0"]
[ECO "A00"]
[PlyCount "37"]
[EventDate "2007.07.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e3 e5 2. d3 d5 3. g3 Nf6 4. Bg2 Be6 5. c4 dxc4 6. Bxb7 Bd5 7. Bxa8 Bxh1 8. Bxh1 cxd3 9. g4 Bb4+ 10. Bd2 Nc6 11. Bxc6+ Ke7 12. Bxb4+ Ke6 13. Qb3+ Nd5 14. e4 Kf6 15. Qxd5 Qb8 16. Bc3 d2+ 17. Nxd2 Rd8 18. Qxe5+ Kg6 19. Qxg7# 1-0

[Event "Pan American-ch U08"]
[Site "Medellin"]
[Date "2007.07.05"]
[Round "6"]
[White "Moreno Olivos, Lucas"]
[Black "Contreras Almuna, Matias"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "110"]
[EventDate "2007.07.02"]
[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 e6 2. d4 d6 3. Nc3 c6 4. Nf3 d5 5. Ne5 f6 6. Nf3 dxe4 7. Nxe4 e5 8. dxe5 Qxd1+ 9. Kxd1 Bf5 10. Nc5 Bxc5 11. exf6 gxf6 12. Be2 Bxf2 13. Bh6 Nxh6 14. Bd3 Bxd3 15. cxd3 Bb6 16. d4 c5 17. Re1+ Kf7 18. d5 Ba5 19. Re6 Rd8 20. d6 Kxe6 21. Nd2 Rxd6 22. Ke2 Rxd2+ 23. Kf3 Rxb2 24. Rc1 Rxa2 25. Rxc5 Bb6 26. Rc8 Rf2+ 27. Kg3 Nf5+ 28. Kh3 Rf4 29. g3 Kd7 30. Rh8 Ra4 31. Rxh7+ Kc6 32. Rh8 Ne7 33. Rh7 Nd5 34. Rh8 Bd4 35. Rc8+ Kd7 36. Rh8 f5 37. Rh7+ Kc6 38. Rh8 Bxh8 39. Kg2 Ra2+ 40. Kh3 Rxh2+ 41. Kxh2 Be5 42. Kh3 Na6 43. g4 Nf4+ 44. Kh4 fxg4 45. Kxg4 Nh3 46. Kxh3 Bg3 47. Kxg3 Rf8 48. Kg4 Kd5 49. Kg5 Ke6 50. Kg6 Rg8+ 51. Kh7 Rg1 52. Kh8 Kf7 53. Kh7 Kf6 54. Kh8 Kf7 55. Kh7 Rh1# 0-1

[Event "Pan American-ch U08"]
[Site "Medellin"]
[Date "2007.07.04"]
[Round "5"]
[White "Contreras Almuna, Matias"]
[Black "Pereira Perez, Raul Alejandro"]
[Result "0-1"]
[ECO "A04"]
[PlyCount "58"]
[EventDate "2007.07.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e3 c5 2. Nf3 d6 3. Bc4 Nf6 4. Ng5 e6 5. f4 h6 6. Nf3 Nc6 7. Bb5 Bd7 8. Bxc6 Bxc6 9. Rg1 Be7 10. b3 Ne4 11. d3 Nf6 12. Nfd2 Nd7 13. Nc4 b5 14. Nb2 Bf6 15. d4 cxd4 16. exd4 d5 17. g4 Bh4+ 18. Kf1 b4 19. a4 bxa3 20. Na4 Qb8 21. Qe2 a6 22. c4 dxc4 23. bxc4 0-0 24. f5 exf5 25. gxf5 Re8 26. Qh5 Bf6 27. Qxh6 Re7 28. Rh1 Qe8 29. Bd2 Bxd4 0-1

[Event "Pan American-ch U08"]
[Site "Medellin"]
[Date "2007.07.04"]
[Round "4"]
[White "Montoya Bedoya, Alejandro"]
[Black "Contreras Almuna, Matias"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "71"]
[EventDate "2007.07.02"]
[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 e6 2. Nc3 Nf6 3. Nf3 Ng8 4. Bc4 d6 5. d3 Bd7 6. Bf4 a5 7. Be3 c6 8. d4 b5 9. Bd3 Be7 10. a3 f6 11. e5 f5 12. Bf4 d5 13. 0-0 g5 14. Bxg5 Bxg5 15. Nxg5 Qxg5 16. f4 Qg4 17. Qxg4 fxg4 18. f5 exf5 19. Bxf5 Bxf5 20. Rxf5 Nh6 21. Rh5 Nf7 22. e6 Nd8 23. Re5 Ke7 24. Rg5 h5 25. Re1 Rh7 26. b4 axb4 27. axb4 Na6 28. Na2 Nc7 29. Nc3 Ndxe6 30. Rge5 Ra3 31. R1e3 Ra1+ 32. Re1 Rxe1+ 33. Rxe1 h4 34. h3 gxh3 35. gxh3 Rg7+ 36. Kh1 0-1

[Event "Pan American-ch U08"]
[Site "Medellin"]
[Date "2007.07.03"]
[Round "3"]
[White "Contreras Almuna, Matias"]
[Black "Pabon Sarmiento, Juan Pablo"]
[Result "0-1"]
[ECO "C06"]
[PlyCount "52"]
[EventDate "2007.07.02"]
[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 e6 2. Qf3 d5 3. exd5 exd5 4. c4 dxc4 5. Bxc4 Nf6 6. d3 h6 7. b3 Be7 8. Bb2 0-0 9. d4 Re8 10. Ne2 c5 11. dxc5 Bxc5 12. Nd2 Bg4 13. Qxb7 Nbd7 14. Bxf6 Nxf6 15. Bxf7+ Kh7 16. Bxe8 Qxe8 17. Qa6 Rd8 18. f3 Bf5 19. g4 Bd3 20. Qxd3+ Rxd3 21. Rd1 Re3 22. Kf1 Rxe2 23. Rc1 Rf2+ 24. Kg1 Bb6 25. Nc4 Rc2+ 26. Kf1 Qe2# 0-1

[Event "Pan American-ch U08"]
[Site "Medellin"]
[Date "2007.07.02"]
[Round "1"]
[White "Contreras Almuna, Matias"]
[Black "Pelaes Castillo, Renzo Jos"]
[Result "1-0"]
[ECO "C20"]
[PlyCount "32"]
[EventDate "2007.07.02"]
[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 e5 2. d3 Bc5 3. Qf3 d6 4. d4 Bxd4 5. Bc4 Qe7 6. h4 h6 7. c3 Bc5 8. b4 Bb6 9. a4 a6 10. a5 Ba7 11. Qg3 Rh7 12. Bd3 Nf6 13. f4 exf4 14. Qxf4 d5 15. e5 Rh8 16. Kf1 Ng8 1-0

[Event "Pan American-ch U08"]
[Site "Medellin"]
[Date "2007.07.02"]
[Round "2"]
[White "Nelson, Ronnie"]
[Black "Contreras Almuna, Matias"]
[Result "1-0"]
[ECO "C40"]
[PlyCount "75"]
[EventDate "2007.07.02"]
[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 e5 2. Nf3 f6 3. Bc4 Ne7 4. Nc3 c6 5. 0-0 d5 6. exd5 cxd5 7. Bb5+ Bd7 8. Bxd7+ Qxd7 9. d3 d4 10. Ne2 Nbc6 11. c3 dxc3 12. Nxc3 Nd4 13. Nxd4 exd4 14. Ne2 Nc6 15. Re1 Be7 16. Ng3 Rc8 17. Qe2 Nb4 18. Rb1 Nc2 19. Rd1 0-0 20. a3 Rfe8 21. Qd2 f5 22. Kf1 h6 23. Qa5 b6 24. Qxf5 Qxf5 25. Nxf5 Kf7 26. Nxe7 Rxe7 27. Bf4 Rce8 28. Bd2 Re2 29. Rbc1 Rc8 30. Kxe2 Re8+ 31. Kf1 Rc8 32. Bf4 g5 33. Bg3 h5 34. h3 a5 35. Rd2 h4 36. Bh2 b5 37. Rdxc2 Rxc2 38. Rxc2 1-0

