[Event "URU-ch qual 18th"]
[Site "Paysandu"]
[Date "2005.02.07"]
[Round "5"]
[White "Antognazza, Bruno"]
[Black "Koprek, William"]
[Result "1-0"]
[ECO "B48"]
[PlyCount "99"]
[EventDate "2005.02.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be3 Nc6 6. Nc3 Nf6 7. Bd3 d6 8. 0-0 Qc7 9. f4 Be7 10. a4 0-0 11. Kh1 e5 12. Nxc6 bxc6 13. fxe5 dxe5 14. Bc4 Bg4 15. Qe1 Bh5 16. a5 Bb4 17. Rxf6 gxf6 18. Bh6 Rfe8 19. Qg3+ Bg6 20. h4 Bf8 21. Bxf8 Kxf8 22. Qf3 Kg7 23. h5 Qe7 24. g3 Red8 25. Bd3 Qb4 26. Rf1 Rd6 27. hxg6 hxg6 28. Nd1 Rh8+ 29. Kg1 Qxa5 30. Ne3 Qb6 31. Qf2 Qd8 32. Ng4 Qe7 33. Bxa6 Qe6 34. Qe2 Qd7 35. Bd3 c5 36. b3 Rh5 37. Qf3 Qe7 38. Kf2 c4 39. bxc4 Rg5 40. Ke2 f5 41. Ne3 Rh5 42. exf5 Rh2+ 43. Rf2 Rxf2+ 44. Kxf2 Qa7 45. Kg2 Qa5 46. Qf2 Rd8 47. Nd5 Qa1 48. fxg6 f5 49. Qxf5 Rf8 50. Qd7+ 1-0

[Event "URU-ch qual 18th"]
[Site "Paysandu"]
[Date "2005.02.07"]
[Round "6"]
[White "Koprek, William"]
[Black "Tregarthen, Emiliano"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "84"]
[EventDate "2005.02.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 g6 6. Bc4 Bg7 7. 0-0 Nf6 8. a3 0-0 9. Qe2 d6 10. h3 a6 11. Bf4 Nh5 12. Bh2 Be6 13. Nd5 Rc8 14. Rfd1 Bxd5 15. Bxd5 Qb6 16. Rab1 Ne5 17. b4 Nxf3+ 18. Qxf3 Nf6 19. Bb3 Nd7 20. Rbc1 Rxc1 21. Rxc1 Bb2 22. Rc2 Bxa3 23. Bxf7+ Rxf7 24. Qxa3 Qd4 25. Qc1 Qxb4 26. Bg3 Qxe4 27. Qb2 Nc5 28. Re2 Qf5 29. Qb6 Qf6 30. Qd8+ Kg7 31. Re3 b5 32. h4 b4 33. Kh2 b3 34. Rf3 Qe6 35. Bf4 b2 36. h5 Rf5 37. h6+ Kf7 38. Qh8 b1Q 39. Qxh7+ Ke8 40. Re3 Rh5+ 41. Kg3 Rh3+ 42. gxh3 Qg1+ 0-1

[Event "URU-ch qual 18th"]
[Site "Paysandu"]
[Date "2005.02.06"]
[Round "3"]
[White "Koprek, William"]
[Black "Guerrero, Alvaro"]
[Result "0-1"]
[ECO "B21"]
[BlackElo "2109"]
[PlyCount "174"]
[EventDate "2005.02.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d3 4. Bxd3 g6 5. Nf3 Nc6 6. 0-0 Bg7 7. Re1 d6 8. Be3 Nf6 9. h3 0-0 10. Nbd2 Qc7 11. Bf4 Nd7 12. Nc4 Rd8 13. Ne3 e6 14. Ng4 Nce5 15. Nh6+ Kh8 16. Bc2 Rf8 17. Ng4 Nxf3+ 18. Qxf3 Ne5 19. Qg3 Bd7 20. Rad1 Bc6 21. Bh6 Bxh6 22. Nxh6 Rad8 23. Qh4 f5 24. f4 Qb6+ 25. Kh1 Qxb2 26. fxe5 Qxc2 27. Nf7+ Rxf7 28. Qxd8+ Kg7 29. exd6 Bxe4 30. Qg5 Qxc3 31. Rxe4 fxe4 32. d7 e3 33. Qg3 Qc5 34. d8Q e2 35. Qgd3 exd1Q+ 36. Qxd1 Re7 37. Q8d3 e5 38. Qd6 Qxd6 39. Qxd6 Kf7 40. Qd5+ Kf6 41. Qe4 a6 42. Kg1 Ke6 43. Kf2 Kf6 44. Ke3 Kf7 45. Qd5+ Kf6 46. Ke4 Kg7 47. g4 Kf6 48. h4 Kg7 49. Qd6 Kf7 50. g5 Ke8 51. Qb8+ Kf7 52. Qh8 Ke6 53. Qc8+ Kd6 54. Qg4 Kc7 55. Qf3 Kd8 56. Qf6 Kd7 57. Kd5 e4 58. Qb6 Ke8 59. Kd6 Rd7+ 60. Ke5 Re7+ 61. Kf4 e3 62. Qb1 e2 63. Qe1 Kd7 64. Kg4 Kc6 65. h5 gxh5+ 66. Kxh5 Kd5 67. Kg4 b5 68. Kf3 Re5 69. Kf2 Rf5+ 70. Ke3 Re5+ 71. Kd3 Ke6 72. Kd4 a5 73. Kd3 Rd5+ 74. Kc3 Re5 75. a3 Kf5 76. Kd2 Rd5+ 77. Ke3 Re5+ 78. Kf2 Ke6 79. Kf3 b4 80. axb4 axb4 81. Kf2 b3 82. Kf3 b2 83. Kf2 Rf5+ 84. Ke3 Rxg5 85. Kd3 Rb5 86. Qb1 Re5 87. Qa2+ Kf6 0-1

[Event "URU-ch qual 18th"]
[Site "Paysandu"]
[Date "2005.02.06"]
[Round "4"]
[White "Musso, Hector Alejandro"]
[Black "Koprek, William"]
[Result "0-1"]
[ECO "B48"]
[PlyCount "90"]
[EventDate "2005.02.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nc6 7. Nb3 b5 8. 0-0 Bb7 9. Be3 g6 10. Nc5 Bc8 11. Qd2 d6 12. Nb3 Bg7 13. a4 b4 14. Nd1 Nf6 15. Bh6 0-0 16. Bxg7 Kxg7 17. Ne3 Bb7 18. Kh1 a5 19. Rae1 Ne5 20. f4 Nxd3 21. cxd3 Qd7 22. Nd4 Qxa4 23. Nc4 Rad8 24. f5 e5 25. fxg6 exd4 26. gxf7 h6 27. Qf4 Rxf7 28. Nxd6 Rxd6 29. Qxd6 Qc6 30. Qxd4 Rd7 31. Qe5 Rxd3 32. Rf3 Qd6 33. Qxd6 Rxd6 34. e5 Bxf3 35. exd6 Bc6 36. Re7+ Kg6 37. Rc7 Bd7 38. Ra7 a4 39. Rb7 b3 40. Kg1 Kf5 41. g4+ Ke6 42. Rb6 Nxg4 43. Kg2 Ne3+ 44. Kf3 Nc4 45. Rb8 Nxb2 0-1

[Event "URU-ch qual 18th"]
[Site "Paysandu"]
[Date "2005.02.05"]
[Round "2"]
[White "Koprek, William"]
[Black "Barrere, Claudio"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "83"]
[EventDate "2005.02.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 5. c3 dxc3 6. Qd5 Nh6 7. Bxh6 0-0 8. Bc1 Nb4 9. Qa5 Nc2+ 10. Kf1 cxb2 11. Bxb2 Nxa1 12. Bxa1 d6 13. Bd4 c5 14. Qxd8 Rxd8 15. Be3 Bd7 16. Nc3 Bc6 17. Nd5 Bxd5 18. Bxd5 Rab8 19. g4 b5 20. h4 a5 21. Ke2 a4 22. Rc1 Kf8 23. Ng5 Bxg5 24. Bxg5 f6 25. Bf4 h6 26. g5 Ke7 27. gxh6 gxh6 28. Rg1 b4 29. Rg7+ Kf8 30. Bxh6 Ke8 31. Bc6+ Kf8 32. Ra7+ Kg8 33. Bd5+ Kh8 34. Bg7+ Kh7 35. Bxf6+ Kh6 36. Bxd8 Rxd8 37. Rxa4 Kh5 38. a3 bxa3 39. Rxa3 Kxh4 40. Rg3 Rd7 41. Rg8 Ra7 42. Kf3 1-0

[Event "URU-ch qual 18th"]
[Site "Paysandu"]
[Date "2005.02.05"]
[Round "1"]
[White "Socias, Victor"]
[Black "Koprek, William"]
[Result "0-1"]
[ECO "A16"]
[PlyCount "74"]
[EventDate "2005.02.05"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "CBM 104 Extra"]
[Source "ChessBase"]
[SourceDate "2005.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2005.03.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 c6 6. 0-0 d6 7. d3 Bd7 8. h3 Na6 9. Bd2 Nc7 10. Kh2 Rb8 11. Rc1 a6 12. a4 b5 13. axb5 axb5 14. cxb5 Nxb5 15. Nxb5 cxb5 16. Nd4 Ng4+ 17. hxg4 Bxd4 18. Bf3 Bxb2 19. Rb1 Bg7 20. Kg2 Qb6 21. Rh1 f5 22. Qb3+ e6 23. gxf5 Rxf5 24. Rh4 Rbf8 25. Be3 Qd8 26. Bg4 R5f6 27. Bg5 Rxf2+ 28. Kh3 Qxg5 29. Bxe6+ Bxe6+ 30. Qxe6+ R2f7 31. Rf1 Qe5 32. Qa2 d5 33. Rxf7 Rxf7 34. e4 h5 35. exd5 Qf5+ 36. Kg2 Qf3+ 37. Kh2 Be5 0-1

[Event "URU-ch qual Interior"]
[Site "Florida"]
[Date "2004.??.??"]
[Round "5"]
[White "Carbajal, Lautaro"]
[Black "Koprek, William"]
[Result "0-1"]
[ECO "D93"]
[PlyCount "100"]
[EventDate "2004.02.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 0-0 6. Nf3 c6 7. Be2 Nbd7 8. 0-0 h6 9. cxd5 Nxd5 10. Nxd5 cxd5 11. Qc2 Nf6 12. Bd3 Bd7 13. Qb3 Bc6 14. Ne5 Nh5 15. Nxc6 bxc6 16. Be5 c5 17. Be2 f6 18. Bg3 Nxg3 19. hxg3 cxd4 20. exd4 Rb8 21. Qc3 Qb6 22. Rab1 e5 23. Qc5 Rfe8 24. Rfd1 e4 25. Qxb6 Rxb6 26. Rd2 f5 27. Rbd1 Reb8 28. b3 a5 29. Rc1 Bf8 30. Bd1 R8b7 31. Kf1 Kf7 32. Ke2 h5 33. f4 Bd6 34. Ke3 Kf6 35. Rc8 Rc7 36. Rxc7 Bxc7 37. Rc2 Bd6 38. Rc8 Ba3 39. Kd2 a4 40. Ke3 Bb2 41. Rc5 Ke6 42. bxa4 Rb4 43. Rc2 Bxd4+ 44. Ke2 Kd6 45. a5 Bc5 46. Rd2 d4 47. Bb3 d3+ 48. Ke1 Rb5 49. a6 Bb4 50. a7 Ra5 0-1

[Event "URU-ch qual Interior"]
[Site "Florida"]
[Date "2004.??.??"]
[Round "7"]
[White "De la Torre, Andres"]
[Black "Koprek, William"]
[Result "0-1"]
[ECO "A38"]
[PlyCount "102"]
[EventDate "2004.02.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 Nf6 3. Bg2 g6 4. d3 Bg7 5. e4 d6 6. c4 0-0 7. 0-0 Nc6 8. Nc3 a6 9. Bf4 Nh5 10. Bd2 Rb8 11. Qc1 Re8 12. Bh6 Bh8 13. h3 b5 14. g4 Nf6 15. Nh4 Nd4 16. Qd2 Nd7 17. f4 e6 18. Bg5 Qb6 19. f5 Ne5 20. fxg6 fxg6 21. Bh6 Bg7 22. Bxg7 Kxg7 23. Qf4 Qd8 24. g5 b4 25. Qf6+ Qxf6 26. gxf6+ Kf7 27. Na4 Nxd3 28. Nf3 Ne2+ 29. Kh2 Kxf6 30. Nd4+ Nef4 31. Nc6 Rb7 32. Rad1 Kg7 33. e5 Nxg2 34. Rxd3 Nh4 35. exd6 Bd7 36. Na5 Ra7 37. Nxc5 Nf5 38. Ne4 e5 39. c5 Bb5 40. d7 Rxd7 41. Rxd7+ Bxd7 42. c6 Bc8 43. Rc1 Rd8 44. Nb3 Nd4 45. Na5 Rf8 46. Nd6 Ne2 47. Rc5 Rf2+ 48. Kh1 Bxh3 49. Ne4 Bg2+ 50. Kh2 Bxe4+ 51. Kh3 Bf5+ 0-1

[Event "URU-chT 31st"]
[Site "Uruguay"]
[Date "2004.??.??"]
[Round "2"]
[White "Koprek, William"]
[Black "Acosta, Vicente"]
[Result "1-0"]
[ECO "B21"]
[PlyCount "39"]
[EventDate "2004.??.??"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Bc4 d6 6. Nf3 e6 7. 0-0 Be7 8. Bf4 a6 9. Qe2 b5 10. Bb3 Bb7 11. Rfd1 Qc7 12. Rac1 Rd8 13. Nd5 Qb8 14. Nxe7 Ngxe7 15. Ng5 h6 16. Qh5 g6 17. Qh3 Bc8 18. Qc3 Rg8 19. Nh7 b4 20. Nf6+ 1-0

[Event "URU-ch qual Interior"]
[Site "Florida"]
[Date "2004.??.??"]
[Round "4"]
[White "Koprek, William"]
[Black "Campopiano, Julio"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "91"]
[EventDate "2004.02.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Bd3 g6 4. Ne2 Bg7 5. c3 0-0 6. Bg5 h6 7. Be3 Ng4 8. Bd2 e5 9. 0-0 Nc6 10. h3 Nf6 11. f4 exd4 12. cxd4 Re8 13. Nbc3 Nh7 14. Be3 f5 15. Bc4+ Kh8 16. e5 Na5 17. Bf7 Re7 18. Bxg6 Nf8 19. Bh5 Nc4 20. Bf2 c6 21. b3 Nb6 22. Bh4 Be6 23. Bf3 Ng6 24. Bxe7 Qxe7 25. Rc1 Rd8 26. Qe1 Kh7 27. Qf2 Rg8 28. g3 Bf8 29. Kh2 Qg7 30. Rfe1 d5 31. Rg1 Be7 32. Nd1 Nd7 33. Ne3 Nb8 34. g4 Bh4 35. Qg2 Ne7 36. gxf5 Qf8 37. Qf1 Nxf5 38. Nxf5 Bxf5 39. Rxg8 Qxg8 40. Qg2 Qf7 41. Rg1 Na6 42. Bh5 Qf8 43. Bg6+ Bxg6 44. Qxg6+ Kh8 45. f5 Nb4 46. Nf4 1-0

[Event "URU-ch qual Interior"]
[Site "Florida"]
[Date "2004.??.??"]
[Round "2"]
[White "Koprek, William"]
[Black "Carbajal, Guillermo"]
[Result "1/2-1/2"]
[ECO "B12"]
[PlyCount "68"]
[EventDate "2004.02.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h6 5. g4 Bg6 6. h5 Bh7 7. Bd3 Bxd3 8. Qxd3 e6 9. Nd2 Nd7 10. Ne2 c5 11. c3 cxd4 12. cxd4 Ne7 13. Nf3 Nc6 14. a3 Be7 15. Bd2 Rc8 16. Rc1 0-0 17. Nf4 Qe8 18. Rg1 Bg5 19. Kf1 Qd8 20. b4 a6 21. Re1 Re8 22. Nxg5 hxg5 23. Nh3 Nf8 24. Bxg5 f6 25. exf6 gxf6 26. Bh6 Rc7 27. Bxf8 Kxf8 28. Nf4 e5 29. Ng6+ Kg7 30. dxe5 fxe5 31. Qg3 Qf6 32. Nh4 Rf8 33. g5 Qf4 34. Qxf4 Rxf4 1/2-1/2

[Event "URU-chT 31st"]
[Site "Uruguay"]
[Date "2004.??.??"]
[Round "3"]
[White "Koprek, William"]
[Black "Correa, Andres"]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "139"]
[EventDate "2004.??.??"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Bg4 5. d4 c6 6. Be2 e6 7. 0-0 Nf6 8. h3 Bxf3 9. Bxf3 Bd6 10. Qe2 Nbd7 11. Ne4 Nxe4 12. Bxe4 Nf6 13. Bd3 0-0 14. c3 Qc7 15. Bg5 Be7 16. Rad1 Rad8 17. Bb1 Rd5 18. Bc1 Rfd8 19. g3 c5 20. Be3 cxd4 21. cxd4 Qb6 22. Rc1 Qb5 23. Qc2 Qd7 24. Kg2 e5 25. dxe5 Rxe5 26. Rfd1 Rd5 27. Re1 b6 28. a3 Bc5 29. Qe2 Bxe3 30. Qxe3 Re8 31. Qf3 Rd2 32. Rxe8+ Qxe8 33. Rc7 Rd7 34. Rc3 Rd2 35. Bf5 g6 36. Bc2 Kg7 37. Rc7 Qe5 38. Qb7 Qd5+ 39. Qxd5 Nxd5 40. Rxa7 Rxc2 41. b4 Ra2 42. Rd7 Nc3 43. Rb7 Rxa3 44. Rxb6 Rb3 45. Rc6 Ne4 46. Rc4 Nd6 47. Rc6 Nb5 48. Rc4 Kf6 49. h4 Ke6 50. g4 Na3 51. Rc6+ Kd5 52. Rb6 Kc4 53. Rb7 Rxb4 54. Rxf7 Kd5 55. f3 h5 56. gxh5 gxh5 57. Rf5+ Ke6 58. Rxh5 Nc4 59. Rh8 Ne5 60. h5 Kf5 61. Kg3 Rb3 62. Rf8+ Kg5 63. Rg8+ Kxh5 64. Kf4 Ng6+ 65. Ke4 Rb4+ 66. Ke3 Kg5 67. Kf2 Kf5 68. Kg3 Rb1 69. Ra8 Ne5 70. Rf8+ 1/2-1/2

[Event "URU-ch qual Interior"]
[Site "Florida"]
[Date "2004.??.??"]
[Round "6"]
[White "Koprek, William"]
[Black "Escofet Fernandez, Jaime"]
[Result "0-1"]
[ECO "C02"]
[BlackElo "2192"]
[PlyCount "78"]
[EventDate "2004.02.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. c3 Qb6 6. Be2 Nge7 7. 0-0 cxd4 8. cxd4 Nf5 9. Be3 Be7 10. b3 0-0 11. Nc3 Bd7 12. Na4 Qa5 13. Bf4 Rac8 14. g4 Nh6 15. Bd2 Qd8 16. Bxh6 gxh6 17. Qd2 Kg7 18. Kh1 Nb4 19. Nc5 Bxc5 20. dxc5 Nc6 21. Rg1 f6 22. exf6+ Qxf6 23. g5 hxg5 24. Nxg5 Kh8 25. Qc2 Qf5 26. Bd3 Qxf2 27. Qd1 Qh4 28. Rg3 e5 29. Bxh7 Nd4 30. Qe1 Qf4 31. Bg6 Rxc5 32. Nf7+ Rxf7 33. Bxf7 Bf5 34. Qg1 Be4+ 35. Rg2 Rc2 36. Rf1 Qd2 37. Bxd5 Bxd5 38. Rf8+ Kh7 39. Rfg8 Bxg2+ 0-1

[Event "URU-chT 31st"]
[Site "Uruguay"]
[Date "2004.??.??"]
[Round "1"]
[White "Koprek, William"]
[Black "Milans, Carlos"]
[Result "1-0"]
[ECO "B02"]
[PlyCount "63"]
[EventDate "2004.??.??"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. Ne4 e5 5. Nf3 Bg4 6. h3 Bh5 7. Bb5+ c6 8. Bc4 Bg6 9. d3 Nd7 10. 0-0 Be7 11. Re1 0-0 12. Ng3 Bf6 13. a3 Re8 14. Rb1 Qb6 15. Bd2 Qc7 16. b4 N7b6 17. Bb3 Rad8 18. Qe2 Qd7 19. Ne4 Bxe4 20. dxe4 Nf4 21. Bxf4 exf4 22. Rbd1 Qe7 23. e5 Qc7 24. Rxd8 Qxd8 25. Qe4 Qc7 26. Qxf4 Nd5 27. Qd4 Be7 28. c4 Nb6 29. c5 Rd8 30. cxb6 axb6 31. Qf4 Bf8 32. Ng5 1-0

[Event "URU-chT 31st"]
[Site "Uruguay"]
[Date "2004.??.??"]
[Round "4"]
[White "Koprek, William"]
[Black "Nunez, Matias"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "106"]
[EventDate "2004.??.??"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 d6 5. Bc4 e6 6. Nf3 Nc6 7. 0-0 Be7 8. Bf4 Nf6 9. h3 0-0 10. Qe2 a6 11. Rfd1 b5 12. Bb3 Qc7 13. Rac1 Qb8 14. Nxb5 Qxb5 15. Qxb5 axb5 16. Rxc6 e5 17. Bg5 Be6 18. Bxf6 gxf6 19. Bxe6 fxe6 20. a3 Rfc8 21. Rdc1 Rxc6 22. Rxc6 b4 23. Rc7 Kf8 24. axb4 Rb8 25. b5 Rxb5 26. Rc8+ Kf7 27. Rc2 d5 28. exd5 exd5 29. g4 d4 30. Nh4 Bb4 31. Nf5 Rb7 32. Rc6 Bf8 33. Nd6+ Bxd6 34. Rxd6 Rxb2 35. Kf1 Ke7 36. Ra6 d3 37. Ke1 Re2+ 38. Kf1 Re4 39. Ra2 Kf7 40. Rd2 Rd4 41. Kg2 h5 42. f3 f5 43. gxf5 Kf6 44. Kf2 Kxf5 45. Ke3 h4 46. Kf2 Kf4 47. Rd1 d2 48. Ke2 Kg3 49. Rg1+ Kh2 50. Rd1 Kxh3 51. Kf2 Kh2 52. Ke3 Rd8 53. f4 Kg2 0-1

[Event "URU-ch qual Interior"]
[Site "Florida"]
[Date "2004.??.??"]
[Round "3"]
[White "Rossel, Eduardo"]
[Black "Koprek, William"]
[Result "1-0"]
[ECO "D35"]
[PlyCount "91"]
[EventDate "2004.02.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 d5 3. c4 Nf6 4. Nc3 c6 5. cxd5 exd5 6. Bg5 Be7 7. e3 Bf5 8. Bd3 Bxd3 9. Qxd3 Nbd7 10. 0-0 0-0 11. Rab1 h6 12. Bh4 Ne4 13. Bxe7 Qxe7 14. b4 a6 15. a4 f5 16. Qc2 Rac8 17. g3 Qf6 18. a5 Qg6 19. Ne2 Qf6 20. Nf4 Rce8 21. Nd3 Ng5 22. Nfe5 Nxe5 23. Nxe5 Rxe5 24. dxe5 Nf3+ 25. Kg2 Nxe5 26. Qc3 Qe6 27. h3 g5 28. Rbe1 g4 29. hxg4 fxg4 30. Qc2 Qf6 31. e4 d4 32. Qb3+ Kg7 33. Rd1 d3 34. Rxd3 Nxd3 35. Qxd3 Qf3+ 36. Qxf3 gxf3+ 37. Kh3 Rd8 38. Kg4 Rd3 39. Rb1 Kf6 40. Kf4 Ke6 41. Rh1 Rb3 42. Rxh6+ Kd7 43. Rh7+ Kc8 44. g4 Rxb4 45. g5 Rb1 46. g6 1-0

[Event "URU-ch qual Interior"]
[Site "Florida"]
[Date "2004.??.??"]
[Round "1"]
[White "Ulaneo, Fermin"]
[Black "Koprek, William"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "48"]
[EventDate "2004.02.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. g3 d6 5. Bg2 Be7 6. 0-0 Nf6 7. d3 0-0 8. Be3 Rb8 9. a4 a6 10. Ne2 Qc7 11. c4 b5 12. b3 bxc4 13. bxc4 Bd7 14. Qd2 Rb4 15. Qc2 Rfb8 16. Rfb1 Qa5 17. Nc3 Ng4 18. Bg5 Rxb1+ 19. Nxb1 Bxg5 20. Nxg5 Qe1+ 21. Bf1 Nd4 22. Qd2 Qxd2 23. Nxd2 Rb2 24. Bh3 Nxf2 0-1

[Event "URU-chT 30th"]
[Site "Mercedes"]
[Date "2003.11.23"]
[Round "5"]
[White "Koprek, William"]
[Black "Correa, Andres"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "113"]
[EventDate "2003.11.22"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Bg4 5. h3 Bh5 6. g4 Bg6 7. Bg2 c6 8. d4 e6 9. 0-0 Nf6 10. Re1 Bd6 11. Ne5 Nbd7 12. Nc4 Qc7 13. Nxd6+ Qxd6 14. Ne2 0-0 15. Bf4 Qe7 16. Bg3 Ne4 17. Bh2 Qh4 18. Ng3 Nxg3 19. Bxg3 Qe7 20. d5 cxd5 21. Qxd5 Nb6 22. Qxb7 Qxb7 23. Bxb7 Rad8 24. Re2 Rd7 25. Bc6 Rd4 26. c3 Rd3 27. a4 Rfd8 28. a5 Nc4 29. Bb5 Rd1+ 30. Rxd1 Rxd1+ 31. Kg2 Bd3 32. Bxc4 Bxc4 33. Re3 Bd5+ 34. f3 Rd2+ 35. Bf2 Rxb2 36. Rd3 h6 37. Kg3 Ra2 38. Be1 Bc4 39. Rd8+ Kh7 40. Rd7 a6 41. Rxf7 Bf1 42. Bf2 Rxa5 43. f4 Kg8 44. Re7 Bc4 45. Bd4 Rd5 46. Rxg7+ Kf8 47. Rh7 a5 48. Rxh6 a4 49. Rh8+ Kf7 50. Ra8 Bb3 51. h4 Rd7 52. h5 Bc2 53. g5 Rb7 54. g6+ Ke7 55. Kh4 Kd6 56. Kg5 Rb5+ 57. Be5+ 1-0

[Event "URU-chT 30th"]
[Site "Mercedes"]
[Date "2003.11.23"]
[Round "4"]
[White "Milans, Carlos"]
[Black "Koprek, William"]
[Result "1-0"]
[ECO "A05"]
[PlyCount "85"]
[EventDate "2003.11.22"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. e3 0-0 5. Be2 d6 6. 0-0 c5 7. d3 Nc6 8. Nbd2 a6 9. Ng5 e5 10. Nge4 Nxe4 11. dxe4 d5 12. exd5 Qxd5 13. Nc4 Qxd1 14. Rfxd1 Bf5 15. g4 Be6 16. Nd6 Rab8 17. h3 Nb4 18. c3 Nd5 19. Bf3 Rfd8 20. Ne4 b6 21. Ng5 Nc7 22. c4 b5 23. Nxe6 Nxe6 24. Be2 Ng5 25. Kg2 b4 26. Rac1 a5 27. Rd5 Ne6 28. Rcd1 e4 29. Bxg7 Kxg7 30. R1d2 h6 31. Bd1 Kf6 32. Bc2 Rxd5 33. Rxd5 Rd8 34. Rxd8 Nxd8 35. Bxe4 Ke5 36. Bd5 f6 37. f4+ Kd6 38. h4 g5 39. hxg5 hxg5 40. Kf3 Ke7 41. e4 Kd6 42. Ke3 Ke7 43. e5 1-0

[Event "URU-chT 30th"]
[Site "Mercedes"]
[Date "2003.11.22"]
[Round "2"]
[White "Lucas, Edison"]
[Black "Koprek, William"]
[Result "0-1"]
[ECO "A33"]
[PlyCount "78"]
[EventDate "2003.11.22"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "URU"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. g3 d6 6. Bg2 Nf6 7. 0-0 Be7 8. c4 0-0 9. Nc3 Qc7 10. b3 Bd7 11. Bb2 Nc6 12. Nf3 Rad8 13. Rc1 Bc8 14. Re1 Qb6 15. Qe2 Ng4 16. Na4 Qc7 17. h3 Nge5 18. Nxe5 dxe5 19. Nc3 Bg5 20. Rcd1 Nd4 21. Qg4 Bh6 22. Rd3 b5 23. cxb5 axb5 24. Qd1 b4 25. Ne2 Ba6 26. Rxd4 exd4 27. Bf1 d3 28. Nf4 Bxf4 29. gxf4 Qxf4 30. Re3 Rd7 31. Rg3 e5 32. Bg2 Rc8 33. Rf3 Qg5 34. Rg3 Qh6 35. Bxe5 Rc1 36. Rxg7+ Qxg7 37. Qxc1 Qxe5 38. f4 d2 39. Qc2 d1Q+ 0-1

[Event "URU-chT qual Interior"]
[Site "San Jose"]
[Date "2002.02.12"]
[Round "7"]
[White "Rodriguez, Santiago"]
[Black "Koprek, William"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2271"]
[BlackElo "2095"]
[PlyCount "43"]
[EventDate "2002.02.??"]
[EventType "team"]
[EventRounds "3"]
[EventCountry "URU"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Bg5 Nbd7 5. cxd5 exd5 6. Nc3 Be7 7. e3 0-0 8. Bd3 c6 9. Qc2 h6 10. Bf4 Re8 11. h3 Nf8 12. 0-0 Bd6 13. Bxd6 Qxd6 14. Rab1 Ne6 15. b4 Ng5 16. Ne5 Bxh3 17. f4 Bxg2 18. Qxg2 Nge4 19. Nxe4 Nxe4 20. Bxe4 dxe4 21. Qxe4 f6 22. Qg6 1-0

[Event "Colonia op"]
[Site "Colonia"]
[Date "2001.??.??"]
[Round "?"]
[White "Choca, Andres"]
[Black "Koprek, William"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "34"]
[EventDate "2001.09.??"]
[EventType "swiss"]
[EventRounds "3"]
[EventCountry "URU"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. f4 Nc6 4. Nf3 Be7 5. Bc4 a6 6. d3 d6 7. 0-0 Nf6 8. a3 0-0 9. Qe1 d5 10. Ba2 Re8 11. e5 Nd7 12. Bd2 b6 13. Qf2 Qc7 14. d4 cxd4 15. Nxd4 Nxd4 16. Be3 Nf5 17. Bb3 Nxe3 0-1

[Event "Colonia op"]
[Site "Colonia"]
[Date "2001.??.??"]
[Round "?"]
[White "Diaz Nahuel, Nahuel"]
[Black "Koprek, William"]
[Result "1-0"]
[ECO "A11"]
[PlyCount "63"]
[EventDate "2001.09.??"]
[EventType "swiss"]
[EventRounds "3"]
[EventCountry "URU"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Nf6 3. g3 g6 4. Bg2 Bg7 5. Bb2 0-0 6. 0-0 c6 7. d3 Nbd7 8. c4 Re8 9. Nbd2 e5 10. cxd5 Nxd5 11. Qb1 N7b6 12. a3 Bg4 13. h3 Bd7 14. e4 Nc7 15. Qc2 Qe7 16. a4 Rad8 17. Ba3 Qf6 18. b4 Ne6 19. Bb2 Ng5 20. Nxg5 Qxg5 21. Nb3 f5 22. a5 Na8 23. exf5 Bxf5 24. Nc5 Bc8 25. a6 b6 26. Nb7 Nc7 27. Nxd8 Qxd8 28. Qxc6 Kh8 29. Rfc1 Nxa6 30. Qxc8 Qxc8 31. Rxc8 Rxc8 32. Rxa6 1-0

[Event "URU-ch prel Interior"]
[Site "Paysandu"]
[Date "2001.??.??"]
[Round "3"]
[White "Idiarte Borda, Jorge"]
[Black "Koprek, William"]
[Result "1-0"]
[ECO "D78"]
[PlyCount "88"]
[EventDate "2001.02.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. b3 Nbd7 7. Bb2 c6 8. Nbd2 Re8 9. c4 Ne4 10. Nxe4 dxe4 11. Ng5 e5 12. Nxe4 exd4 13. Bxd4 Ne5 14. Bxe5 Qxd1 15. Raxd1 Bxe5 16. Nd6 Rd8 17. c5 Rb8 18. Nc4 Bf6 19. Rxd8+ Bxd8 20. e4 Be6 21. e5 Bxc4 22. bxc4 Be7 23. Rb1 Bxc5 24. Bxc6 Rd8 25. Bd5 b6 26. Kf1 Kg7 27. f4 h6 28. Ke2 Re8 29. Kf3 Rd8 30. g4 Re8 31. a4 Re7 32. Re1 a6 33. Rd1 Rd7 34. Ke4 Re7 35. Rf1 Re8 36. h3 a5 37. f5 Bd6 38. e6 gxf5+ 39. gxf5 Kf6 40. Bc6 Rg8 41. Kd4 Bc7 42. Rf3 Rd8+ 43. Bd7 Rg8 44. Kc3 Be5+ 1-0

[Event "URU-ch prel Interior"]
[Site "Paysandu"]
[Date "2001.??.??"]
[Round "1"]
[White "Koprek, William"]
[Black "Gentile, Leandro"]
[Result "1-0"]
[ECO "A48"]
[PlyCount "61"]
[EventDate "2001.02.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 d6 4. Nbd2 Bg7 5. e4 Bg4 6. Be2 0-0 7. 0-0 e5 8. dxe5 dxe5 9. Nxe5 Bxe2 10. Qxe2 Qd6 11. Ndc4 Qc5 12. Be3 Qe7 13. Bd4 c5 14. Bc3 b5 15. Ne3 b4 16. Nxf7 bxc3 17. Ng5 cxb2 18. Rab1 Nxe4 19. Qc4+ Kh8 20. Nxe4 Rf7 21. f3 Bd4 22. Rfe1 Nd7 23. c3 Nf6 24. cxd4 Nxe4 25. dxc5 Qe5 26. Qd5 Qxd5 27. Nxd5 Nd2 28. Nf4 Nxb1 29. Rxb1 Rb8 30. Nd3 Rb5 31. Rxb2 1-0

[Event "URU-ch prel Interior"]
[Site "Paysandu"]
[Date "2001.??.??"]
[Round "4"]
[White "Koprek, William"]
[Black "Oddone, Cristhian"]
[Result "1-0"]
[ECO "D03"]
[PlyCount "61"]
[EventDate "2001.02.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. c3 b6 5. Nbd2 Bb7 6. e3 Be7 7. Bd3 d5 8. Ne5 Nbd7 9. 0-0 h6 10. Bf4 0-0 11. h3 Qe8 12. Rc1 Ne4 13. Nxe4 dxe4 14. Bb5 Rd8 15. Bxd7 Rxd7 16. Nxd7 Qxd7 17. dxc5 Qc6 18. cxb6 g5 19. Bh2 Qxb6 20. Qb3 Qc6 21. Rfd1 f5 22. Rd2 Ba6 23. c4 f4 24. exf4 gxf4 25. Bxf4 Rxf4 26. Qg3+ Bg5 27. Rcd1 Kf8 28. Rd8+ Ke7 29. Qa3+ Kf7 30. R1d7+ Kf6 31. Qc3+ 1-0

[Event "URU-chT 27th"]
[Site "Paysandu"]
[Date "2000.08.27"]
[Round "7"]
[White "Koprek, William"]
[Black "Nunez, Matias"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "72"]
[EventDate "2000.08.25"]
[EventType "team"]
[EventRounds "7"]
[EventCountry "URU"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. g3 Nbd7 4. Bg2 e6 5. 0-0 c5 6. c3 Bd6 7. Re1 b6 8. Nbd2 Bb7 9. c4 Qc7 10. cxd5 Nxd5 11. e4 Nb4 12. a3 Na6 13. d5 0-0 14. dxe6 fxe6 15. Nc4 Be5 16. Nfxe5 Nxe5 17. Bf4 Rxf4 18. gxf4 Nxc4 19. Qb3 Na5 20. Qxe6+ Kh8 21. Rad1 Qxf4 22. Qe7 Rf8 23. f3 h6 24. Rd7 Qf6 25. Rxb7 Nxb7 26. Qxb7 Nb8 27. e5 Qf4 28. e6 Re8 29. e7 Kh7 30. Qxa7 Qd4+ 31. Kh1 Qxb2 32. Qa4 Rxe7 33. Rg1 b5 34. Qa8 Qe5 35. Bf1 c4 36. Qb7 Rxb7 0-1

