[Event "NCA-ch"]
[Site "Managua"]
[Date "2011.09.04"]
[Round "8"]
[White "Perez, Guillermo"]
[Black "Romero, Freddy"]
[Result "1-0"]
[ECO "E20"]
[PlyCount "51"]
[EventDate "2011.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NCA"]
[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. Bd2 b6 5. a3 Bxc3 6. Bxc3 Ne4 7. Nf3 Nxc3 8. bxc3 Bb7 9. d5 Qe7 10. e3 0-0 11. Bd3 d6 12. 0-0 Nd7 13. e4 Nc5 14. Bc2 Ba6 15. Nd2 e5 16. f4 f6 17. f5 Bc8 18. Rf3 Bd7 19. Rh3 Qf7 20. Qg4 g6 21. Re1 Qg7 22. Rg3 Rf7 23. Rf1 g5 24. h4 h6 25. hxg5 Qxg5 26. Qh4 1-0

[Event "NCA-ch"]
[Site "Managua"]
[Date "2011.09.04"]
[Round "7"]
[White "Vanegas, Yader"]
[Black "Perez, Guillermo"]
[Result "1-0"]
[ECO "B77"]
[WhiteElo "1816"]
[PlyCount "83"]
[EventDate "2011.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NCA"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. f3 0-0 8. Qd2 d6 9. Bc4 Ne5 10. Bb3 Bd7 11. h4 a5 12. h5 a4 13. Bd5 Nxd5 14. Bh6 Nc4 15. Qg5 e5 16. Qxd8 Rfxd8 17. Bxg7 Nxc3 18. Bf6 exd4 19. Bxd8 Rxd8 20. bxc3 dxc3 21. hxg6 fxg6 22. Kf2 Bc6 23. Rh4 b5 24. Rd1 Na3 25. e5 d5 26. Rc1 d4 27. Ke2 Be8 28. e6 Rd6 29. Re4 g5 30. Re5 h6 31. e7 Kf7 32. Kd3 Kf6 33. Rce1 Bg6+ 34. R1e4 Be8 35. g4 Rd7 36. Rf5+ Kg7 37. Rf8 Bg6 38. e8Q Bxe8 39. Rfxe8 Rf7 40. R4e7 Rxe7 41. Rxe7+ Kf6 42. Re4 1-0

[Event "NCA-ch"]
[Site "Managua"]
[Date "2011.09.03"]
[Round "6"]
[White "Perez, Guillermo"]
[Black "Sanchez, Gabriel Ivan"]
[Result "0-1"]
[ECO "E11"]
[BlackElo "1784"]
[PlyCount "108"]
[EventDate "2011.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NCA"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 e6 2. c4 Bb4+ 3. Bd2 Bxd2+ 4. Nxd2 d5 5. e3 Nf6 6. Ngf3 0-0 7. Rc1 c6 8. Be2 Nbd7 9. 0-0 b6 10. b4 Bb7 11. c5 Qe7 12. Nb3 e5 13. dxe5 Nxe5 14. Nxe5 Qxe5 15. b5 Rfc8 16. bxc6 Bxc6 17. cxb6 axb6 18. Nd4 Bd7 19. Qb3 Qd6 20. Rfd1 Rc5 21. Nb5 Bxb5 22. Bxb5 Ng4 23. f4 Rac8 24. Rb1 Qe7 25. Re1 Rc3 26. Qb2 Rxe3 27. Qd2 Rxe1+ 28. Rxe1 Qd6 29. Rc1 Rxc1+ 30. Qxc1 Qd8 31. h3 Nf6 32. a4 g6 33. f5 Kg7 34. fxg6 hxg6 35. Qg5 Qd6 36. Qe3 d4 37. Qd3 Qc5 38. Qc4 Qe5 39. Qe2 Qd6 40. Qd3 Nd7 41. h4 Nc5 42. Qd2 Qe5 43. Qf2 d3 44. Bc4 Qa1+ 45. Kh2 Qe5+ 46. Kg1 Qa1+ 47. Kh2 Qf6 48. Qxf6+ Kxf6 49. Kg3 d2 50. Be2 Nxa4 51. Kf4 Nc3 52. Bf3 d1Q 53. Bxd1 Nxd1 54. Ke4 b5 0-1

[Event "NCA-ch"]
[Site "Managua"]
[Date "2011.08.28"]
[Round "5"]
[White "Artiles Vallecillo, Alfredo Antonio"]
[Black "Perez, Guillermo"]
[Result "0-1"]
[ECO "B13"]
[PlyCount "32"]
[EventDate "2011.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NCA"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Nbd2 c5 4. e3 cxd4 5. exd4 Nc6 6. Bd3 Bg4 7. c3 e6 8. 0-0 Bd6 9. Qe1 0-0 10. Ne5 Bh5 11. h3 Qc7 12. f4 Ne7 13. b3 Qxc3 14. Rb1 Qxd4+ 15. Qf2 Qxf2+ 16. Rxf2 Bc5 0-1

[Event "NCA-ch"]
[Site "Managua"]
[Date "2011.08.27"]
[Round "4"]
[White "Perez, Guillermo"]
[Black "Sanchez, Eneo"]
[Result "0-1"]
[ECO "E80"]
[BlackElo "1942"]
[PlyCount "62"]
[EventDate "2011.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NCA"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 Nc6 6. Be3 e5 7. d5 Nb8 8. Bd3 a5 9. Nge2 Na6 10. 0-0 0-0 11. a3 Bd7 12. Na2 Nc5 13. b4 axb4 14. axb4 Nxd3 15. Qxd3 Nh5 16. Nac3 Qe7 17. Nb5 Bxb5 18. cxb5 f5 19. Rxa8 Rxa8 20. Rc1 f4 21. Bf2 Nf6 22. b6 Ne8 23. b5 g5 24. bxc7 Nxc7 25. b6 Ne8 26. Qc4 h5 27. Nc3 g4 28. Kf1 g3 29. hxg3 fxg3 30. Bxg3 Qg5 31. Bf2 Qxc1+ 0-1

[Event "NCA-ch"]
[Site "Managua"]
[Date "2011.08.21"]
[Round "2"]
[White "Maltez, Lazaro"]
[Black "Perez, Guillermo"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "1801"]
[PlyCount "120"]
[EventDate "2011.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NCA"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. g3 Nc6 4. Bg2 d5 5. b3 d4 6. 0-0 e5 7. d3 Bd6 8. Nbd2 Bd7 9. Re1 0-0 10. Nf1 a5 11. Bd2 Qc7 12. Rb1 Nb4 13. a3 Nc6 14. Qc2 Nd8 15. Rb2 Bc6 16. e4 b5 17. Nh4 b4 18. Ra2 Ne6 19. Nf5 Rfb8 20. Nxd6 Qxd6 21. a4 Nd7 22. Qc1 Rf8 23. f4 exf4 24. Bxf4 Ne5 25. Bxe5 Qxe5 26. Rf2 Bd7 27. Nd2 Ng5 28. Nf3 Nxf3+ 29. Rxf3 Ra6 30. Ref1 Rh6 31. R1f2 Qh5 32. Bh1 Bg4 33. Rf4 Rg6 34. Qf1 Bh3 35. Bg2 Bxg2 36. Kxg2 Rh6 37. Rh4 Qg6 38. Rxh6 Qxh6 39. Qd1 g6 40. Qf3 Qc1 41. h4 h5 42. g4 hxg4 43. Qxg4 Qh6 44. Rf4 Re8 45. Kf3 Kg7 46. Qd7 Qh5+ 47. Kg3 Rf8 48. Qc7 Qe2 49. e5 Qxd3+ 50. Rf3 Qe4 51. Qxc5 d3 52. Qd5 Qe1+ 53. Kg4 d2 54. Rd3 Qg1+ 55. Kh3 Qf1+ 56. Kg3 Qg1+ 57. Kf3 Qh1+ 58. Ke2 Qe1+ 59. Kf3 Qh1+ 60. Ke2 Qe1+ 1/2-1/2

[Event "NCA-ch"]
[Site "Managua"]
[Date "2011.08.21"]
[Round "3"]
[White "Perez, Guillermo"]
[Black "Pichardo, Carlos"]
[Result "1/2-1/2"]
[ECO "D45"]
[BlackElo "1845"]
[PlyCount "54"]
[EventDate "2011.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NCA"]
[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. Nf3 c6 4. Nc3 d5 5. e3 Be7 6. Bd2 Nbd7 7. c5 Qc7 8. b4 a6 9. a4 e5 10. b5 0-0 11. h3 Re8 12. bxc6 bxc6 13. Be2 h6 14. a5 Bf8 15. 0-0 exd4 16. exd4 Ne4 17. Nxe4 Rxe4 18. Bd3 Re8 19. Qc2 Nf6 20. Ne5 Ne4 21. Bxe4 dxe4 22. Qxe4 Bb7 23. Qf3 Bxc5 24. dxc5 Qxe5 25. Be3 Rad8 26. Rfe1 Qc3 27. Qg3 Qe5 1/2-1/2

[Event "NCA-ch"]
[Site "Managua"]
[Date "2011.08.20"]
[Round "1"]
[White "Paiz, Porfirio"]
[Black "Perez, Guillermo"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "1785"]
[PlyCount "147"]
[EventDate "2011.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NCA"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 e5 3. Nf3 exd4 4. Nxd4 Nxd4 5. Qxd4 Qf6 6. Be3 Qxd4 7. Bxd4 Ne7 8. Nc3 Nc6 9. Be3 Bb4 10. 0-0-0 0-0 11. Nd5 Bd6 12. f4 f6 13. Be2 b6 14. a3 Bb7 15. Bf3 Rae8 16. Rhe1 Ne7 17. Nxc7 Bxc7 18. Rxd7 Bxe4 19. Bxe4 Bb8 20. g3 Nc8 21. Bd2 Nd6 22. Bd5+ Kh8 23. Rde7 Rd8 24. Bb3 Nf5 25. R7e4 Nd4 26. R4e3 Nf5 27. Rc3 h5 28. Be6 Nd4 29. Bh3 Nb5 30. Rce3 Bd6 31. Bf1 Nc7 32. Bc4 Bc5 33. Rd3 Bd6 34. Bc3 Bc5 35. Red1 Rxd3 36. Rxd3 b5 37. Bb3 Re8 38. Bf7 Re2 39. Bg6 Ne6 40. f5 Nf8 41. Bxh5 Rxh2 42. Bf7 Rh1+ 43. Rd1 Be3+ 44. Bd2 Bxd2+ 45. Kxd2 Rxd1+ 46. Kxd1 a6 47. Bd5 Nd7 48. Bb7 Nc5 49. Bd5 Na4 50. Kc1 Kh7 51. b4 Nc3 52. Bf3 Kh6 53. Kb2 Na4+ 54. Kb3 Kg5 55. g4 Kf4 56. Bd1 Nb6 57. c3 Nc4 58. Bc2 Kxg4 59. a4 Ne3 60. Bd3 Nc4 61. axb5 axb5 62. Bxc4 bxc4+ 63. Kxc4 Kxf5 64. Kd5 g5 65. b5 g4 66. b6 g3 67. b7 g2 68. b8Q g1Q 69. Qc8+ Kf4 70. Qc7+ Kf3 71. Qc4 Qg5+ 72. Kc6 Qe5 73. Qd5+ Qxd5+ 74. Kxd5 1/2-1/2

[Event "Managua Grand Prix 12th"]
[Site "Managua"]
[Date "2011.04.18"]
[Round "6.26"]
[White "Ampie, Marcelo"]
[Black "Perez, Guillermo"]
[Result "0-1"]
[ECO "A08"]
[PlyCount "72"]
[EventDate "2011.04.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NCA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 c5 4. 0-0 Nc6 5. Nc3 e5 6. d3 d4 7. Nb1 Bd6 8. Bg5 0-0 9. Bxf6 Qxf6 10. Qd2 Bd7 11. Na3 Rac8 12. Nc4 b5 13. Nxd6 Qxd6 14. e3 Be6 15. a4 b4 16. c3 dxc3 17. bxc3 a5 18. Ng5 Bf5 19. Rfd1 Rfd8 20. Bf1 h6 21. e4 Bg4 22. f3 Bh5 23. Bh3 Rc7 24. g4 Bg6 25. f4 hxg5 26. fxg5 Bxe4 27. dxe4 Qxd2 28. Rxd2 Rxd2 29. g6 bxc3 30. gxf7+ Rxf7 31. g5 Nd4 32. g6 Rb7 33. Rf1 c2 34. Bc8 Rb1 35. Bh3 Rxf1+ 36. Bxf1 Nf3+ 0-1

[Event "Managua Grand Prix 12th"]
[Site "Managua"]
[Date "2011.04.18"]
[Round "5.24"]
[White "Perez, Guillermo"]
[Black "Sanchez, Gerald"]
[Result "0-1"]
[ECO "D06"]
[PlyCount "78"]
[EventDate "2011.04.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NCA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Bf5 3. c4 Nf6 4. Nc3 e6 5. cxd5 Nxd5 6. Nxd5 exd5 7. a3 Bd6 8. Qa4+ c6 9. Qb3 Qc7 10. g3 0-0 11. Bg2 Re8 12. e3 Be4 13. 0-0 Nd7 14. Bd2 Rab8 15. Rac1 Qd8 16. Bb4 Bxb4 17. Qxb4 Qf6 18. Nd2 Bxg2 19. Kxg2 Qe6 20. Nb3 h6 21. Nc5 Nxc5 22. Qxc5 a6 23. b4 Rec8 24. a4 b6 25. Qc2 b5 26. axb5 axb5 27. Qc5 Ra8 28. Ra1 Ra4 29. Rxa4 bxa4 30. Qa7 Qe4+ 31. Kg1 Qe8 32. Qxa4 Ra8 33. Qb3 Qb8 34. Rc1 Qb5 35. Rc5 Ra1+ 36. Kg2 Qf1+ 37. Kf3 Qh1+ 38. Kg4 f5+ 39. Kh3 Kh7 0-1

[Event "Managua Grand Prix 12th"]
[Site "Managua"]
[Date "2011.04.17"]
[Round "3.19"]
[White "Perez, Guillermo"]
[Black "Mejia, Donaldo"]
[Result "0-1"]
[ECO "D10"]
[BlackElo "1773"]
[PlyCount "30"]
[EventDate "2011.04.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NCA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nc3 c6 4. e4 b5 5. Be3 e6 6. Rc1 Nf6 7. e5 Nd5 8. Nxd5 cxd5 9. a3 a5 10. h4 Nc6 11. Nh3 h6 12. h5 Qb6 13. b3 Bxa3 14. g4 Bxc1 15. Qxc1 cxb3 0-1

[Event "Managua Grand Prix 12th"]
[Site "Managua"]
[Date "2011.04.17"]
[Round "4.23"]
[White "Raitt Mendoza, Carlos"]
[Black "Perez, Guillermo"]
[Result "1-0"]
[ECO "C47"]
[PlyCount "39"]
[EventDate "2011.04.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NCA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d3 Nc6 4. Be2 Be7 5. Nc3 0-0 6. 0-0 d5 7. exd5 Nxd5 8. Nxd5 Qxd5 9. Bg5 Bxg5 10. Nxg5 f6 11. Ne4 Nd4 12. Nc3 Qf7 13. f4 exf4 14. Rxf4 Nxe2+ 15. Qxe2 Qg6 16. Nd5 Qf7 17. Ne7+ Kh8 18. Re1 Bd7 19. Qe4 c6 20. Qxh7+ 1-0

[Event "Managua Grand Prix 12th"]
[Site "Managua"]
[Date "2011.04.16"]
[Round "1.19"]
[White "Garcia, Ursus"]
[Black "Perez, Guillermo"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1921"]
[PlyCount "51"]
[EventDate "2011.04.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NCA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Bc5 5. 0-0 0-0 6. d3 Na5 7. Nxe5 Nxc4 8. Nxc4 d5 9. exd5 Bg4 10. Qd2 Nxd5 11. Nxd5 Qxd5 12. Ne3 Bxe3 13. fxe3 Rad8 14. Qf2 Rd6 15. e4 Qh5 16. Bf4 Rg6 17. Bxc7 f5 18. Kh1 f4 19. Bxf4 Be2 20. Rfe1 Rxg2 21. Kxg2 Bg4 22. Re3 Rf6 23. e5 Rf5 24. h3 Bd1 25. Rxd1 Qxd1 26. e6 1-0

