[Event "Pan American-ch School U17"]
[Site "Medellin"]
[Date "2019.11.17"]
[Round "9"]
[White "Mosquera Orjuela, Johan Esteban"]
[Black "Alayza Serra, Juan Sebastian"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1451"]
[BlackElo "1377"]
[PlyCount "34"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nc6 3. Nf3 Nf6 4. e3 a6 5. c3 Bf5 6. Be2 e6 7. Nbd2 Bd6 8. Ne5 Bxe5 9. dxe5 Ne4 10. Nxe4 Bxe4 11. f3 Bg6 12. Qb3 b5 13. h4 h6 14. h5 Bh7 15. g4 0-0 16. Kf2 Na5 17. Qd1 c5 0-1

[Event "Pan American-ch School U17"]
[Site "Medellin"]
[Date "2019.11.16"]
[Round "8"]
[White "Alayza Serra, Juan Sebastian"]
[Black "Chica Almanza, Carlos Alberto"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "1377"]
[PlyCount "52"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. g3 g6 4. Bg2 Bg7 5. e4 e5 6. Nge2 0-0 7. d3 Nc6 8. h3 Nd4 9. Nxd4 cxd4 10. Nd5 Nxd5 11. cxd5 d6 12. f4 f5 13. fxe5 dxe5 14. Qb3 b6 15. Bd2 Bb7 16. Rc1 a5 17. Rc2 h5 18. h4 Kh8 19. 0-0 Kg8 20. Rd1 Kh8 21. Rdc1 f4 22. Rc7 fxg3 23. Bg5 Bf6 24. Qxb6 Bxg5 25. Qb5 Bf6 26. Qb6 Be7 0-1

[Event "Pan American-ch School U17"]
[Site "Medellin"]
[Date "2019.11.16"]
[Round "7"]
[White "Osorio Castano, Juan Paulo"]
[Black "Alayza Serra, Juan Sebastian"]
[Result "1-0"]
[ECO "A36"]
[BlackElo "1377"]
[PlyCount "57"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. Nge2 Bg7 5. g3 c5 6. Bg2 Nc6 7. d3 a6 8. 0-0 0-0 9. f4 Bg4 10. h3 Bd7 11. g4 e6 12. Ng3 Qc7 13. f5 h6 14. h4 Nh7 15. Bxh6 Bxh6 16. g5 Nxg5 17. hxg5 Bxg5 18. Qg4 Be3+ 19. Kh1 Ne5 20. Qh4 g5 21. Qh6 Ng4 22. Qh5 Nf6 23. Qh3 g4 24. Qh4 Kg7 25. Nh5+ Nxh5 26. Qxg4+ Kh6 27. Bf3 Rh8 28. Rg1 Bxg1 29. Rxg1 1-0

[Event "Pan American-ch School U17"]
[Site "Medellin"]
[Date "2019.11.15"]
[Round "6"]
[White "Alayza Serra, Juan Sebastian"]
[Black "Analuisa Ramirez, Jaime Gonzalo"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "1377"]
[BlackElo "1394"]
[PlyCount "78"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. g3 e6 4. Bg2 d5 5. d3 dxc4 6. dxc4 Qxd1+ 7. Kxd1 Be7 8. Kc2 0-0 9. Bg5 h6 10. Bd2 Nc6 11. Rd1 Nd4+ 12. Kb1 e5 13. e4 Bg4 14. f3 Bh5 15. g4 Bg6 16. h4 Rfd8 17. Nge2 h5 18. g5 Nd7 19. Nxd4 cxd4 20. Nd5 Bf8 21. f4 exf4 22. Bxf4 Nc5 23. Rhe1 Ne6 24. Bg3 Rac8 25. b3 b5 26. Bf1 Nc5 27. Rxd4 Nxe4 28. Rdxe4 bxc4 29. Bxc4 Ba3 30. Nf4 Bxe4+ 31. Rxe4 g6 32. Nxg6 Rd1+ 33. Kc2 Rc1+ 34. Kd2 Rd8+ 35. Ke3 Rc3+ 36. Kf4 Bd6+ 37. Ne5 Bxe5+ 38. Rxe5 Rd4+ 39. Kf5 Rf3+ 0-1

[Event "Pan American-ch School U17"]
[Site "Medellin"]
[Date "2019.11.14"]
[Round "5"]
[White "Rovira Concepcion, Josua"]
[Black "Alayza Serra, Juan Sebastian"]
[Result "1-0"]
[ECO "A48"]
[BlackElo "1377"]
[PlyCount "115"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Be2 d6 5. Nf3 0-0 6. c3 Nbd7 7. Qc2 Re8 8. Nbd2 e5 9. dxe5 dxe5 10. Bg3 c6 11. Rd1 Qe7 12. e4 h6 13. 0-0 Nh5 14. Nc4 Nxg3 15. hxg3 Nb6 16. Nxb6 axb6 17. Qb3 b5 18. a3 Be6 19. Qc2 f5 20. Nh4 Qf7 21. exf5 gxf5 22. Qd2 Bb3 23. Rde1 Rad8 24. Qc1 Rd7 25. Bd1 Bc4 26. Be2 Red8 27. Bxc4 bxc4 28. Qc2 e4 29. f3 Rd2 30. Qc1 Be5 31. fxe4 Bxg3 32. Nxf5 Qc7 33. Nxh6+ Kg7 34. Rf7+ Qxf7 35. Nxf7 Bf2+ 36. Kf1 Kxf7 37. Re2 Rd1+ 38. Qxd1 Rxd1+ 39. Kxf2 Rd3 40. Kg1 Ke6 41. Kh2 Ke5 42. g3 Rd8 43. Kh3 Rh8+ 44. Kg4 Rg8+ 45. Kf3 Rf8+ 46. Ke3 Rg8 47. Rg2 Rg4 48. Kf3 Rg8 49. g4 Rd8 50. Re2 Rd3+ 51. Re3 Rd2 52. Re2 Rd3+ 53. Kg2 Kf4 54. e5 Kxg4 55. e6 Rd8 56. Re4+ Kf5 57. e7 Re8 58. Kf3 1-0

[Event "Pan American-ch School U17"]
[Site "Medellin"]
[Date "2019.11.14"]
[Round "4"]
[White "Salcedo Rodelo, Brayan"]
[Black "Alayza Serra, Juan Sebastian"]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "1623"]
[BlackElo "1377"]
[PlyCount "49"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 c5 5. g3 Nc6 6. Bg2 Bd6 7. 0-0 0-0 8. Re1 Qc7 9. Qe2 e5 10. exd5 Nd4 11. Qd1 Re8 12. c3 Nf5 13. Qa4 Bd7 14. Qb3 b5 15. h3 a5 16. Ne4 Nxd5 17. Qxd5 Be6 18. Nf6+ gxf6 19. Qe4 Bf8 20. Nh4 Nxh4 21. Qxh4 Ra6 22. Qxf6 Bc8 23. Qh4 Be6 24. Be4 f5 25. Bd5 1-0

[Event "Pan American-ch School U17"]
[Site "Medellin"]
[Date "2019.11.13"]
[Round "3"]
[White "Alayza Serra, Juan Sebastian"]
[Black "Gomez Leon, Sebastian"]
[Result "1-0"]
[ECO "A23"]
[WhiteElo "1377"]
[BlackElo "1469"]
[PlyCount "51"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 c6 5. Nf3 d6 6. 0-0 Be6 7. d3 Nbd7 8. a3 0-0 9. b4 Bb6 10. Bb2 Qe7 11. Qc2 Ng4 12. h3 Nh6 13. e3 f5 14. Rfe1 f4 15. exf4 exf4 16. Nd5 cxd5 17. cxd5 fxg3 18. Rxe6 Bxf2+ 19. Kh1 Qd8 20. Rxd6 Rc8 21. Qa4 Rxf3 22. Rxd7 Qf8 23. Rxg7+ Qxg7 24. Bxg7 Re3 25. Bxh6 Re2 26. Qd7 1-0

[Event "Pan American-ch School U17"]
[Site "Medellin"]
[Date "2019.11.12"]
[Round "1"]
[White "Alayza Serra, Juan Sebastian"]
[Black "Sabogal Varela, Jose Joaquin"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "1377"]
[BlackElo "1808"]
[PlyCount "76"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nf3 Nc6 7. 0-0 Be6 8. a3 a5 9. d3 Be7 10. Nd2 0-0 11. b3 f5 12. Bb2 Bf6 13. Nc4 Nd5 14. e3 f4 15. Ne4 b5 16. Nxf6+ gxf6 17. e4 Nde7 18. d4 Nxd4 19. Bxd4 Qxd4 20. Qxd4 exd4 21. Nd2 fxg3 22. fxg3 Rac8 23. b4 c5 24. bxa5 c4 25. Nf3 Rfd8 26. e5 fxe5 27. Nxe5 Nd5 28. Bxd5 Bxd5 29. Rab1 Rc5 30. Rf4 d3 31. Rd4 Kf8 32. a6 Ke7 33. a7 Bb7 34. Rxd8 Kxd8 35. Nf7+ Ke7 36. Nh6 c3 37. Re1+ Kd7 38. Kf2 c2 0-1

[Event "Pan American-ch School U17"]
[Site "Medellin"]
[Date "2019.11.12"]
[Round "2"]
[White "Munoz Castano, Diego Alejandro"]
[Black "Alayza Serra, Juan Sebastian"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1686"]
[BlackElo "1377"]
[PlyCount "71"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Bd6 5. Bd3 Nf6 6. 0-0 0-0 7. Bg5 h6 8. Bh4 Bg4 9. Re1 Nbd7 10. h3 Bh5 11. Nbd2 c6 12. c3 Qc7 13. Nf1 Rfe8 14. Qc2 Bxf3 15. gxf3 g5 16. Bg3 Nh5 17. Kg2 Nf4+ 18. Bxf4 Bxf4 19. Ng3 Nf6 20. Nf5 h5 21. h4 g4 22. fxg4 Nxg4 23. Be2 Kh8 24. Bxg4 hxg4 25. Ng3 Bxg3 26. fxg3 Qd7 27. Qf2 f5 28. Re5 Rxe5 29. dxe5 Re8 30. Re1 b6 31. Qf4 c5 32. Qh6+ Qh7 33. Qc6 Rf8 34. e6 f4 35. e7 f3+ 36. Kh1 1-0

[Event "Santiago de Surco Cup Santa Maria 1st"]
[Site "Santiago de Surco"]
[Date "2016.12.08"]
[Round "5.20"]
[White "Alayza Serra, Juan Sebastian"]
[Black "Palao, Adriana"]
[Result "0-1"]
[ECO "E92"]
[BlackElo "1599"]
[PlyCount "76"]
[EventDate "2016.11.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. Nf3 0-0 5. e4 d6 6. h3 e5 7. Be2 Nc6 8. d5 Ne7 9. Be3 Nd7 10. b4 f5 11. Ng5 Nf6 12. 0-0 h6 13. Ne6 Bxe6 14. dxe6 Qc8 15. exf5 Nxf5 16. Nb5 a6 17. Nc3 Qxe6 18. Nd5 Nxd5 19. cxd5 Qe7 20. Qb3 Nxe3 21. fxe3 e4 22. Rac1 Rxf1+ 23. Rxf1 Rf8 24. Rxf8+ Kxf8 25. Qa4 Qg5 26. Qb3 Be5 27. g4 Qh4 28. Kg2 Bg3 29. Bc4 Be1 30. Qb2 Qg3+ 31. Kf1 Qxe3 32. Qh8+ Kf7 33. Qh7+ Kf6 34. Qh8+ Kg5 35. Qd8+ Kf4 36. Qf6+ Kg3 37. Be2 Bc3 38. Qf7 Qc1+ 0-1

[Event "Santiago de Surco Cup Santa Maria 1st"]
[Site "Santiago de Surco"]
[Date "2016.12.03"]
[Round "3.16"]
[White "Alayza Serra, Juan Sebastian"]
[Black "Orosco Torres, Johann Miguel"]
[Result "0-1"]
[ECO "D94"]
[BlackElo "1594"]
[PlyCount "144"]
[EventDate "2016.11.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. Nf3 Bg7 4. e3 d5 5. d4 0-0 6. b3 c5 7. Bb2 Qa5 8. Qd2 dxc4 9. Bxc4 a6 10. a3 b5 11. b4 cxb4 12. axb4 Qxb4 13. Be2 Bb7 14. 0-0 Qd6 15. Rfd1 Re8 16. Qd3 b4 17. Na4 Be4 18. Qd2 b3 19. Nc5 Bc2 20. Rdc1 Ng4 21. h3 Nh6 22. Bd3 Bxd3 23. Qxd3 Nc6 24. Qc4 Nb8 25. Qxb3 Nd7 26. Nxd7 Qxd7 27. Qd3 Qb7 28. Bc3 Nf5 29. e4 Nd6 30. Rcb1 Qxe4 31. Qxe4 Nxe4 32. Ba5 e5 33. dxe5 Bxe5 34. Nxe5 Rxe5 35. Re1 Rae8 36. f3 Nf6 37. Rxe5 Rxe5 38. Bc3 Re6 39. g4 Nd5 40. Bd2 Kf8 41. Ra5 Nc7 42. Kf2 Ke8 43. f4 Rd6 44. Re5+ Kd7 45. Ba5 f6 46. Re1 Ne6 47. Bb4 Rd4 48. f5 gxf5 49. gxf5 Rf4+ 50. Kg3 Rxf5 51. Rd1+ Kc8 52. Rd6 Nc7 53. Rc6 Kb7 54. Rd6 Rb5 55. Bd2 a5 56. Rxf6 a4 57. Rf4 Rb3+ 58. Kg4 a3 59. Rb4+ Rxb4+ 60. Bxb4 a2 61. Bc3 Kc6 62. h4 Nd5 63. Bd4 Kb5 64. Kg5 Kc4 65. Ba1 Kd3 66. h5 Kc2 67. Kh6 Kb1 68. Bd4 Nf4 69. Kxh7 Nxh5 70. Kg6 Nf4+ 71. Kf5 Nd3 72. Ke4 Nb2 0-1

[Event "Santiago de Surco Cup Santa Maria 1st"]
[Site "Santiago de Surco"]
[Date "2016.11.26"]
[Round "1.2"]
[White "Alayza Serra, Juan Sebastian"]
[Black "Lopez, Dante"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "2132"]
[PlyCount "80"]
[EventDate "2016.11.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "PER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 d5 5. d4 exd4 6. exd4 Bb4 7. a3 Be7 8. Be2 0-0 9. 0-0 dxc4 10. Bxc4 Bg4 11. Be3 a6 12. Be2 Nd5 13. Nxd5 Qxd5 14. Rc1 Rfd8 15. h3 Bh5 16. Ne5 Bxe2 17. Qxe2 Nxe5 18. dxe5 Qxe5 19. Rfe1 Bd6 20. g3 Re8 21. Qc2 Qb5 22. a4 Qh5 23. Kg2 Re6 24. Qc3 Rae8 25. b4 Qd5+ 26. Kg1 Qf3 27. Bd2 Qxc3 28. Bxc3 Rxe1+ 29. Bxe1 b5 30. a5 Kf8 31. Kf1 Ke7 32. Bd2 Kd7 33. Rd1 Re4 34. Bc3 f6 35. h4 Kc6 36. Rc1 Rc4 37. Ke2 Bxb4 38. Kd3 Rxc3+ 39. Rxc3+ Bxc3 40. Kxc3 Kd5 0-1

