[Event "World U20-ch20"]
[Site "Mexico City"]
[Date "1981.09.02"]
[Round "13"]
[White "Krewi, Nasser"]
[Black "Tavares, Shawn P"]
[Result "0-1"]
[ECO "A69"]
[PlyCount "40"]
[EventDate "1981.08.18"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "MEX"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Nf3 0-0 9. Be2 Re8 10. Qc2 Na6 11. a3 Nc7 12. 0-0 b5 13. b4 Nxe4 14. Bb2 Nxc3 15. Bd3 N7xd5 16. Bxc3 Nxc3 17. bxc5 dxc5 18. Ne5 Qd4+ 19. Kh1 c4 20. Rad1 Nxd1 0-1

[Event "World U20-ch20"]
[Site "Mexico City"]
[Date "1981.08.31"]
[Round "12"]
[White "Waqar, Mohamed"]
[Black "Krewi, Nasser"]
[Result "1-0"]
[ECO "B73"]
[PlyCount "125"]
[EventDate "1981.08.18"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "MEX"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. Be2 Nf6 5. 0-0 g6 6. d4 cxd4 7. Nxd4 Bg7 8. Be3 0-0 9. h3 a6 10. Qd2 Bd7 11. Rad1 Rc8 12. f4 Qc7 13. a3 b5 14. Rf3 Rfe8 15. Rdf1 Nh5 16. Nd5 Qb7 17. g4 Nf6 18. Nxf6+ Bxf6 19. e5 dxe5 20. Nxc6 Qxc6 21. fxe5 Bxe5 22. Rxf7 Be6 23. R7f2 Qxc2 24. Qxc2 Rxc2 25. Bxb5 Rxf2 26. Bxe8 Rxf1+ 27. Kxf1 Bc4+ 28. Kf2 Bxb2 29. a4 e5 30. Bh6 Bd4+ 31. Kf3 Bd5+ 32. Ke2 e4 33. Kd2 Bg7 34. Be3 Kf8 35. Bd7 Bb7 36. Bc5+ Kf7 37. Ke2 Bf6 38. Ke3 Be7 39. Bd4 Bd6 40. a5 Bb4 41. Bb6 Ke7 42. Ba4 Kd6 43. h4 Bc5+ 44. Bxc5+ Kxc5 45. g5 Kb4 46. Be8 Bd5 47. Kd4 Kxa5 48. h5 gxh5 49. Kxd5 e3 50. Bxh5 Kb4 51. Kd4 a5 52. Kxe3 Kc5 53. Kf4 Kd6 54. Kf5 Ke7 55. Bd1 Kf7 56. Ba4 Kg7 57. Bd1 h6 58. g6 h5 59. Bxh5 a4 60. Bd1 a3 61. Bb3 Kh8 62. Kf6 a2 63. g7+ 1-0

[Event "World U20-ch20"]
[Site "Mexico City"]
[Date "1981.08.30"]
[Round "11"]
[White "Krewi, Nasser"]
[Black "Cools, Gorik"]
[Result "0-1"]
[ECO "B13"]
[PlyCount "88"]
[EventDate "1981.08.18"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "MEX"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. a3 Bg4 7. Be3 e6 8. h3 Bh5 9. Bd3 Be7 10. Nb1 Rc8 11. 0-0 Qc7 12. c3 Bg6 13. Qc2 Bxd3 14. Qxd3 Ne4 15. Nbd2 f5 16. Qe2 f4 17. Nxe4 dxe4 18. Nd2 0-0 19. Nxe4 fxe3 20. fxe3 Rxf1+ 21. Rxf1 Rf8 22. Rxf8+ Bxf8 23. Qg4 Nd8 24. Ng5 Qe7 25. b4 Qf6 26. c4 Be7 27. Ne4 Qf5 28. Qxf5 exf5 29. Nc3 Kf7 30. Kf2 Ne6 31. Kf3 Bd6 32. c5 Ng5+ 33. Ke2 Bb8 34. b5 Ne4 35. Nd5 Ke6 36. Nb4 Nc3+ 37. Kd3 Nxb5 38. d5+ Ke5 39. d6 Nxa3 40. d7 Bc7 41. c6 b6 42. Na6 Kd6 43. Nb8 a5 44. Kc3 Nb5+ 0-1

[Event "World U20-ch20"]
[Site "Mexico City"]
[Date "1981.08.29"]
[Round "10"]
[White "Bernal Moro, Luis Javier"]
[Black "Krewi, Nasser"]
[Result "1-0"]
[ECO "A34"]
[PlyCount "161"]
[EventDate "1981.08.18"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "MEX"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d5 6. cxd5 Nxd5 7. 0-0 Nxc3 8. bxc3 c5 9. Rb1 Nc6 10. Qa4 Qc7 11. d4 cxd4 12. cxd4 Rd8 13. Bf4 Qd7 14. Rfd1 Nxd4 15. Qxd7 Rxd7 16. Nxd4 Bxd4 17. e3 Bg7 18. Rxd7 Bxd7 19. Rxb7 Be6 20. Rxe7 Rd8 21. Bf3 Bxa2 22. Rxa7 Be6 23. Kg2 h6 24. h4 h5 25. Bg5 Rc8 26. Be7 Bf8 27. Bxf8 Kxf8 28. Ra8 Kg7 29. Rxc8 Bxc8 30. Bd5 Kf6 31. Kf3 Bg4+ 32. Kf4 Bh3 33. e4 Kg7 34. Ke5 Bf1 35. f4 Be2 36. Kd6 Kf8 37. Bc6 Bg4 38. Bd7 Bf3 39. Bc6 Bg4 40. Bd5 Bh3 41. Ke5 Kg7 42. Bc6 Bc8 43. Kd6 Kf8 44. Bd7 Bb7 45. Ke5 Kg7 46. Kd4 Kf6 47. f5 gxf5 48. Bxf5 Ba8 49. Bc8 Bc6 50. Bf5 Ba8 51. Bh3 Bb7 52. e5+ Kg6 53. Kc5 Bf3 54. Kd6 Be2 55. Ke7 Bd1 56. Kd6 Be2 57. Kd5 Bf3+ 58. Kd4 Be2 59. Ke3 Bd1 60. Kf4 Be2 61. Bf5+ Kh6 62. Bc2 Kg7 63. Kg5 Bg4 64. Bf5 Be2 65. Bd7 Bd1 66. Bc6 Bg4 67. Bd5 Be2 68. Kf4 Kg6 69. Be4+ Kh6 70. Ke3 Bg4 71. Bf3 Be6 72. Kd4 Kg6 73. Kc5 Bb3 74. Kd6 Be6 75. Be4+ Kg7 76. Bd5 Bf5 77. Ke7 Bg6 78. Bf3 Kg8 79. Kf6 Kf8 80. e6 Ke8 81. Bc6+ 1-0

[Event "World U20-ch20"]
[Site "Mexico City"]
[Date "1981.08.27"]
[Round "9"]
[White "Krewi, Nasser"]
[Black "Rodriguez, Rogerio"]
[Result "1/2-1/2"]
[ECO "A68"]
[PlyCount "105"]
[EventDate "1981.08.18"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "MEX"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Nf3 0-0 9. Bd3 a6 10. a4 Bg4 11. h3 Bxf3 12. Qxf3 Nbd7 13. 0-0 Qc7 14. Qe2 Rfe8 15. a5 Rec8 16. Ra4 c4 17. Rxc4 Qxa5 18. b4 Qd8 19. e5 Nh5 20. Qe1 dxe5 21. f5 Rxc4 22. Bxc4 Rc8 23. Bd3 Qb6+ 24. Kh2 e4 25. Nxe4 Qd4 26. Qe3 Qxd5 27. fxg6 hxg6 28. Qf3 Ne5 29. Nf6+ Nxf6 30. Qxd5 Nxd5 31. Be4 Nxb4 32. Bxb7 Rc7 33. Be4 Nbd3 34. Be3 Rc2 35. Rd1 Re2 36. Bxd3 Rxe3 37. Bxa6 Bh6 38. Rf1 Ra3 39. Bb7 Bd2 40. Bd5 Rc3 41. Ba2 g5 42. Bd5 Rc2 43. Bb3 Rc3 44. Bd5 Bf4+ 45. Kh1 Kg7 46. h4 Rc1 47. Rxc1 Bxc1 48. hxg5 Bxg5 49. Kh2 Bd2 50. Kg3 Kg6 51. Kf2 Nd3+ 52. Kf3 f6 53. Be4+ 1/2-1/2

[Event "World U20-ch20"]
[Site "Mexico City"]
[Date "1981.08.26"]
[Round "8"]
[White "Urbaneja, Juan Carlos"]
[Black "Krewi, Nasser"]
[Result "1-0"]
[ECO "A42"]
[PlyCount "87"]
[EventDate "1981.08.18"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "MEX"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 c6 5. Nf3 Bg4 6. Be2 Nd7 7. Be3 Ngf6 8. Ng1 Bxe2 9. Ngxe2 Ng4 10. Bg5 Ngf6 11. 0-0 0-0 12. Qd2 c5 13. d5 Ne5 14. b3 a6 15. Ng3 Rb8 16. a4 Qb6 17. Rab1 Qb4 18. h3 h6 19. Be3 Ne8 20. Rfc1 Kh7 21. f4 Nd7 22. Qd3 Nc7 23. Bd2 Qb6 24. Re1 Ne8 25. Kh1 Qc7 26. Re2 Bd4 27. Rbe1 Ng7 28. Be3 Bxe3 29. Rxe3 f6 30. Nf1 h5 31. Nh2 Rbe8 32. Nf3 b6 33. e5 Nf5 34. exd6 Qxd6 35. Re6 Qxf4 36. d6 Ne5 37. Nxe5 fxe5 38. Ne4 exd6 39. Rxe8 Rf7 40. Rf1 Qh4 41. Qd5 Kg7 42. Qa8 Qxe4 43. Rg8+ Kh6 44. Qxe4 1-0

[Event "World U20-ch20"]
[Site "Mexico City"]
[Date "1981.08.25"]
[Round "7"]
[White "Krewi, Nasser"]
[Black "Lasar, Yves"]
[Result "1/2-1/2"]
[ECO "D38"]
[PlyCount "55"]
[EventDate "1981.08.18"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "MEX"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 d5 5. cxd5 exd5 6. Nf3 Nc6 7. e3 0-0 8. Bd3 Bg4 9. h3 Bh5 10. a3 Bd6 11. Be2 Re8 12. 0-0 a6 13. Rc1 Ne7 14. Qc2 c6 15. Na4 Ne4 16. Nc5 Nxd2 17. Qxd2 Qc7 18. Qc2 Bg6 19. Bd3 Bxd3 20. Qxd3 Ng6 21. Rfe1 Re7 22. e4 Bf4 23. Rc2 dxe4 24. Rxe4 Rae8 25. Rce2 Bd6 26. Rxe7 Rxe7 27. Rxe7 Qxe7 28. Qe3 1/2-1/2

[Event "World U20-ch20"]
[Site "Mexico City"]
[Date "1981.08.23"]
[Round "6"]
[White "Kumar Singh, Promod"]
[Black "Krewi, Nasser"]
[Result "0-1"]
[ECO "B06"]
[PlyCount "66"]
[EventDate "1981.08.18"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "MEX"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 c6 5. Nf3 Bg4 6. Be3 Qb6 7. Qd2 Bxf3 8. gxf3 Qc7 9. 0-0-0 Nd7 10. Rg1 e6 11. f5 exf5 12. exf5 0-0-0 13. h4 Ne7 14. Bd3 Rdg8 15. fxg6 hxg6 16. Rh1 Nb6 17. Kb1 Nbd5 18. Nxd5 Nxd5 19. Bf2 Bh6 20. Qe1 Re8 21. Qf1 Ne3 22. Qh3+ Qd7 23. Qxd7+ Kxd7 24. Rde1 Ng2 25. Rxe8 Rxe8 26. h5 gxh5 27. Rxh5 Be3 28. Bf5+ Kc7 29. Bg3 Bxd4 30. Rh7 Re7 31. Bg6 Be5 32. Bf2 Nf4 33. Rxf7 Nxg6 0-1

[Event "World U20-ch20"]
[Site "Mexico City"]
[Date "1981.08.22"]
[Round "5"]
[White "Krewi, Nasser"]
[Black "Noble, Mark Frederick"]
[Result "0-1"]
[ECO "D53"]
[PlyCount "72"]
[EventDate "1981.08.18"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "MEX"]
[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. Bg5 Nbd7 5. Nf3 Be7 6. e3 h6 7. Bxf6 Nxf6 8. Rc1 c6 9. Bd3 dxc4 10. Bxc4 Nd5 11. a3 Nxc3 12. Rxc3 Bd6 13. 0-0 Qe7 14. Rd3 0-0 15. e4 b5 16. Ba2 b4 17. e5 Bc7 18. Qc2 bxa3 19. bxa3 Bb6 20. Rfd1 Bb7 21. Bb1 g6 22. Qd2 Kg7 23. Ne1 Rh8 24. Rg3 Rad8 25. Qc3 c5 26. Nc2 cxd4 27. Nxd4 Rxd4 28. Rxd4 Bxd4 29. Qxd4 Rd8 30. Qa4 Qc5 31. Bc2 Rd2 32. Rxg6+ fxg6 33. Qf4 Rxc2 34. Qf6+ Kg8 35. Qxe6+ Kf8 36. Qf6+ Ke8 0-1

[Event "World U20-ch20"]
[Site "Mexico City"]
[Date "1981.08.21"]
[Round "4"]
[White "Prie, Eric"]
[Black "Krewi, Nasser"]
[Result "1-0"]
[ECO "E60"]
[PlyCount "95"]
[EventDate "1981.08.18"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "MEX"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. d4 cxd4 4. Nxd4 d6 5. Nc3 Nc6 6. g3 Bd7 7. Bg2 g6 8. b3 Bg7 9. Bb2 0-0 10. 0-0 Rc8 11. Rc1 a6 12. Qd2 Ng4 13. Nxc6 Bxc6 14. h3 Bh6 15. e3 Bxg2 16. Kxg2 Nf6 17. Nd5 Nxd5 18. Qxd5 Qb6 19. Kh2 Bg7 20. Bxg7 Kxg7 21. Rfd1 Rc5 22. Qd4+ Kg8 23. Rd2 Rfc8 24. Rcd1 Qc6 25. e4 Re5 26. Re1 f5 27. Rde2 fxe4 28. Rxe4 Rxe4 29. Qxe4 Qxe4 30. Rxe4 e5 31. Kg2 Kf7 32. f4 Kf6 33. Kf3 h5 34. Re3 b5 35. fxe5+ dxe5 36. cxb5 axb5 37. a4 Ra8 38. Re4 bxa4 39. bxa4 g5 40. Rb4 Ra6 41. Ke4 g4 42. hxg4 hxg4 43. Rc4 Ke6 44. Rb4 Rc6 45. a5 Rc3 46. Ra4 Rxg3 47. a6 Rh3 48. a7 1-0

