[Event "San Jose Metropolitano U14 op 45th"]
[Site "San Jose"]
[Date "2024.12.29"]
[Round "8"]
[White "Rodriguez Membreno, Sebastian"]
[Black "Romero Cerdas, Moises Alonso"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1572"]
[BlackElo "1509"]
[PlyCount "92"]
[EventDate "2024.12.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "CB02_2025"]
[SourceDate "2025.01.08"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.08"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 0-0 5. Nbd2 d6 6. 0-0 Re8 7. Re1 Nbd7 8. e4 e5 9. dxe5 Nxe5 10. Nxe5 dxe5 11. h3 Nd7 12. Nf3 Nc5 13. Bg5 Qd6 14. Bb5 Qxd1 15. Raxd1 c6 16. Bc4 b5 17. Bb3 Nxb3 18. cxb3 Be6 19. Rd6 c5 20. Rc1 c4 21. bxc4 Bxc4 22. a4 a6 23. Nd2 Be6 24. axb5 axb5 25. Rb6 Rab8 26. Rcc6 Bf8 27. Nf3 Bd7 28. Rxb8 Rxb8 29. Rc7 Be6 30. Nxe5 Bd6 31. Nc6 Bxc7 32. Nxb8 Bxb8 33. Bf6 Kf8 34. Kf1 Bc4+ 35. Ke1 Ke8 36. Kd2 Bf1 37. g4 Bxh3 38. g5 Kd7 39. Kc3 Ke6 40. Kb4 Bf1 41. Ka5 Be5 42. Bd8 Bxb2 43. f4 Bd3 44. Kb4 Bc1 45. Bc7 Bxe4 46. Kxb5 Kf5 0-1

[Event "San Jose Metropolitano U14 op 45th"]
[Site "San Jose"]
[Date "2024.12.28"]
[Round "4"]
[White "Charaja Umana, Nataly Crisbeth"]
[Black "Rodriguez Membreno, Sebastian"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1488"]
[BlackElo "1572"]
[PlyCount "58"]
[EventDate "2024.12.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "CB02_2025"]
[SourceDate "2025.01.08"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.08"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. Nge2 e5 4. g3 Be6 5. Bg2 Be7 6. d3 Nc6 7. Bd2 Nf6 8. Nd5 0-0 9. Nxe7+ Qxe7 10. 0-0 Nd7 11. f4 f5 12. c3 fxe4 13. dxe4 Rad8 14. f5 Bf7 15. Be3 Nf6 16. Qc2 h6 17. c4 Qc7 18. a3 Nd4 19. Qd3 b5 20. cxb5 d5 21. Nc3 dxe4 22. Qb1 Nb3 23. Nxe4 Nxe4 24. Bxe4 Nxa1 25. f6 Bc4 26. Rf2 Bb3 27. Bh7+ Kh8 28. fxg7+ Qxg7 29. Be4 Rd1+ 0-1

[Event "San Jose Metropolitano U14 op 45th"]
[Site "San Jose"]
[Date "2024.12.28"]
[Round "6"]
[White "Gabb Diaz, Nayareth"]
[Black "Rodriguez Membreno, Sebastian"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "1416"]
[BlackElo "1572"]
[PlyCount "89"]
[EventDate "2024.12.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "CB02_2025"]
[SourceDate "2025.01.08"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.08"]
[SourceQuality "1"]

1. d4 f5 2. Bf4 Nf6 3. e3 e6 4. Nf3 Be7 5. Bd3 b6 6. c3 Bb7 7. Nbd2 0-0 8. Qc2 Na6 9. 0-0 d5 10. c4 c6 11. Rac1 Nb4 12. Qb3 Nxd3 13. Qxd3 Ba6 14. Qb3 Ne4 15. Rfd1 Bd6 16. Bxd6 Qxd6 17. cxd5 cxd5 18. Qa4 Bb7 19. Ne5 f4 20. Ndf3 fxe3 21. fxe3 Rf5 22. Rf1 b5 23. Qb3 Raf8 24. a4 b4 25. Qd1 Ba6 26. Rc6 Qe7 27. Rxa6 Nd6 28. b3 Nf7 29. Nd3 Ng5 30. Rc6 Nxf3+ 31. Rxf3 Rxf3 32. gxf3 Qg5+ 33. Kf2 Qh4+ 34. Kf1 Qxh2 35. Qe2 Qh3+ 36. Kf2 h5 37. Ne5 h4 38. Kg1 Qg3+ 39. Qg2 Qe1+ 40. Kh2 Qxe3 41. Rc7 Qf4+ 42. Kh1 Qh6 43. Ng6 h3 44. Qg4 Rf6 45. Rc8+ 1-0

[Event "San Jose Metropolitano U14 op 45th"]
[Site "San Jose"]
[Date "2024.12.28"]
[Round "5"]
[White "Rodriguez Membreno, Sebastian"]
[Black "Moya Cabrera, Mathias Bernardo"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1572"]
[BlackElo "1556"]
[PlyCount "124"]
[EventDate "2024.12.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "CB02_2025"]
[SourceDate "2025.01.08"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.08"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. Nbd2 d5 6. 0-0 c5 7. c3 Bd6 8. Re1 0-0 9. e4 dxe4 10. Nxe4 Nc6 11. Bg5 Be7 12. Qc2 Nxe4 13. Bxe7 Nxe7 14. Bxe4 Bxe4 15. Rxe4 Ng6 16. dxc5 bxc5 17. Rd1 Qf6 18. Qe2 Rfd8 19. Re1 Rd7 20. Ne5 Nxe5 21. Rxe5 Rad8 22. Rxc5 Rd2 23. Qf3 Qxf3 24. gxf3 Rxb2 25. Ra5 Rc2 26. Rxa7 Rxc3 27. Kg2 g6 28. a4 Rdd3 29. Re3 Rxe3 30. fxe3 Rxe3 31. a5 Kg7 32. a6 Ra3 33. Kg3 Kf6 34. h3 g5 35. Kg4 Ra4+ 36. Kg3 h5 37. Ra8 h4+ 38. Kf2 e5 39. Ra7 Ra2+ 40. Ke3 Ra3+ 41. Kf2 Ra4 42. Ra8 Kf5 43. Ra7 f6 44. Ke3 Ra3+ 45. Ke2 Kf4 46. Rf7 Rxa6 47. Rc7 Ra2+ 48. Kd1 Rh2 49. Rc4+ Kf5 50. Ke1 Rxh3 51. Kf2 Rg3 52. Ra4 g4 53. fxg4+ Rxg4 54. Ra3 Kf4 55. Rf3+ Kg5 56. Rh3 f5 57. Re3 e4 58. Re1 Rg3 59. Rc1 Kg4 60. Rc8 Kf4 61. Rh8 e3+ 62. Kf1 Ke5 0-1

[Event "San Jose Metropolitano U14 op 45th"]
[Site "San Jose"]
[Date "2024.12.27"]
[Round "2"]
[White "Baquero Graterol, Azael Augusto"]
[Black "Rodriguez Membreno, Sebastian"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1509"]
[BlackElo "1572"]
[PlyCount "60"]
[EventDate "2024.12.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "CB02_2025"]
[SourceDate "2025.01.08"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.08"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 e5 4. Nc3 Be7 5. d3 Nf6 6. 0-0 0-0 7. Be3 Nc6 8. Qd2 Na5 9. Bd5 Nxd5 10. Nxd5 b6 11. Nxe7+ Qxe7 12. Bg5 f6 13. Bh4 Bb7 14. a3 Qd7 15. b4 Nc6 16. Qe3 Nd4 17. Ne1 Qg4 18. Qh3 Qxh3 19. gxh3 d5 20. c3 Ne2+ 21. Kh1 dxe4 22. dxe4 Rac8 23. Rd1 Nxc3 24. Rd7 Rf7 25. Rxf7 Kxf7 26. f4 Bxe4+ 27. Kg1 exf4 28. Nf3 g5 29. Bf2 Bxf3 30. h4 Ne2# 0-1

[Event "San Jose Metropolitano U14 op 45th"]
[Site "San Jose"]
[Date "2024.12.27"]
[Round "3"]
[White "Rodriguez Membreno, Sebastian"]
[Black "Leiva Coto, Isaac Antonio"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1572"]
[BlackElo "1481"]
[PlyCount "87"]
[EventDate "2024.12.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "CB02_2025"]
[SourceDate "2025.01.08"]
[SourceVersion "1"]
[SourceVersionDate "2025.01.08"]
[SourceQuality "1"]

1. d4 c5 2. e3 Nc6 3. Nc3 cxd4 4. exd4 d5 5. Nf3 Bg4 6. Bd3 Nxd4 7. Bf4 Nc6 8. Qd2 Nf6 9. 0-0-0 e5 10. Rde1 e4 11. Ne5 Nxe5 12. Bxe5 a6 13. f3 Bf5 14. Qf4 Be7 15. Bxf6 gxf6 16. Qxf5 exd3 17. Nxd5 dxc2 18. Nxe7 Qxe7 19. Rxe7+ Kxe7 20. Re1+ Kd6 21. Qxf6+ Kc7 22. Qxf7+ Kb6 23. Qb3+ Ka7 24. Re7 Rab8 25. Qxc2 Rbc8 26. Rc7 Kb8 27. Rc3 Rhe8 28. Qf2 Rcd8 29. f4 Re7 30. Re3 Rc7+ 31. Rc3 Rcd7 32. f5 a5 33. f6 Rf7 34. Qf4+ Ka8 35. Rc7 Rff8 36. Qf5 Kb8 37. Qe5 Rxf6 38. Rd7+ Ka7 39. Rxd8 Rb6 40. Qxa5+ Ra6 41. Qc5+ Rb6 42. Rd6 Kb8 43. Qxb6 Ka8 44. Rd8# 1-0

[Event "Wch FIDE Online U10 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.04"]
[Round "7"]
[White "Rodriguez Membreno, Sebastian"]
[Black "Jaikaran, Aaron"]
[Result "1/2-1/2"]
[ECO "C68"]
[BlackElo "1081"]
[PlyCount "103"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 f6 6. d3 Bg4 7. h3 Be6 8. Be3 Qd7 9. Qd2 0-0-0 10. 0-0-0 Ne7 11. Kb1 Ng6 12. Rhe1 Be7 13. h4 h5 14. d4 exd4 15. Qxd4 Qxd4 16. Rxd4 Bf7 17. Rxd8+ Rxd8 18. b3 Bb4 19. Kb2 Ne5 20. Nxe5 fxe5 21. Rd1 Re8 22. Ne2 Be7 23. Bg5 Bf6 24. Bxf6 gxf6 25. Ng3 Bg6 26. f3 Re6 27. Nf5 Bxf5 28. exf5 Re8 29. g4 Rh8 30. Rh1 hxg4 31. fxg4 e4 32. h5 e3 33. Re1 Rg8 34. Rxe3 Rxg4 35. Re6 Rg5 36. Rxf6 Rxh5 37. Rf8+ Kd7 38. f6 Rf5 39. Kc3 Ke6 40. Kc4 Rxf6 41. Rxf6+ Kxf6 42. Kc5 Ke6 43. c4 Kd7 44. a4 b6+ 45. Kb4 Kd6 46. a5 c5+ 47. Ka4 Kc6 48. axb6 Kxb6 49. b4 cxb4 50. Kxb4 c5+ 51. Ka4 a5 52. Kb3 1/2-1/2

[Event "Wch FIDE Online U10 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.03"]
[Round "6"]
[White "Assis Dayan, Abraham Samuel"]
[Black "Rodriguez Membreno, Sebastian"]
[Result "1-0"]
[ECO "B94"]
[PlyCount "165"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e5 7. Nb3 Be7 8. Bxf6 Bxf6 9. Nd5 0-0 10. Be2 Nd7 11. 0-0 Nb6 12. h3 Nxd5 13. Qxd5 Rb8 14. Rad1 Be7 15. Rfe1 Be6 16. Qd3 Qb6 17. Qc3 Bh4 18. Qf3 Rbc8 19. c3 Bg5 20. Qd3 Rcd8 21. Qg3 Bh6 22. Bg4 Bxg4 23. Qxg4 g6 24. Rd5 f5 25. exf5 Rxf5 26. Rf1 Rdf8 27. Qc4 Kg7 28. Qe2 Qc6 29. Qd3 e4 30. Qd4+ Kg8 31. Rxd6 Qc7 32. Rd7 Qf4 33. Qc4+ Kh8 34. Qc7 Qxc7 35. Rxc7 b5 36. Re7 e3 37. Nd4 exf2+ 38. Kh1 Rf4 39. Ne6 R8f6 40. Re8+ Bf8 41. Nxf8 Rxf8 42. Re2 g5 43. Kh2 h5 44. g3 R4f5 45. Kg2 g4 46. h4 Kg7 47. Rexf2 Rxf2+ 48. Rxf2 Rxf2+ 49. Kxf2 Kf6 50. Ke3 Ke5 51. b3 Kd5 52. Kf4 Kc5 53. Kg5 a5 54. Kxh5 b4 55. c4 Kd4 56. Kxg4 Kc3 57. h5 Kb2 58. h6 Kxa2 59. h7 Kxb3 60. h8Q Kxc4 61. Qc8+ Kb3 62. Qe6+ Ka3 63. Qe3+ b3 64. Qc5+ Kb2 65. Qxa5 Kc2 66. Kh5 b2 67. Qc5+ Kb1 68. g4 Ka1 69. Qa3+ Kb1 70. Qxb2+ Kxb2 71. g5 Kc3 72. g6 Kc4 73. g7 Kd4 74. g8Q Ke5 75. Qd8 Ke4 76. Kg5 Ke5 77. Qd3 Ke6 78. Qd4 Ke7 79. Qd5 Kf8 80. Qb7 Ke8 81. Kf6 Kd8 82. Ke6 Ke8 83. Qc8# 1-0

[Event "Wch FIDE Online U10 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.03"]
[Round "5"]
[White "Khafif, Tommy"]
[Black "Rodriguez Membreno, Sebastian"]
[Result "0-1"]
[ECO "B50"]
[PlyCount "80"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d3 e5 4. c3 Nf6 5. Be2 Be7 6. Be3 Nc6 7. 0-0 b6 8. Na3 Ba6 9. Rc1 0-0 10. g3 Qd7 11. Bg5 Ng4 12. Qd2 Bxg5 13. Qxg5 h6 14. Qd2 d5 15. exd5 Qxd5 16. c4 Qd6 17. Nh4 Nf6 18. Qe3 Nd4 19. Bf3 Nxf3+ 20. Qxf3 Rab8 21. Nf5 Qe6 22. Nh4 Bb7 23. Qe2 Qc6 24. Nf3 e4 25. Ne5 Qd6 26. Ng4 exd3 27. Nxf6+ Qxf6 28. Qxd3 Rfd8 29. Qe3 Qc6 30. f3 Re8 31. Qf4 Rbd8 32. Nc2 Re6 33. Ne3 Rd4 34. Qb8+ Re8 35. Qxa7 Rxe3 36. Rfe1 Rxf3 37. Qb8+ Kh7 38. Re8 Re3 39. Rh8+ Kg6 40. Rf1 Qg2# 0-1

[Event "Wch FIDE Online U10 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.03"]
[Round "4"]
[White "Rodriguez Membreno, Sebastian"]
[Black "Khafif, Joseph"]
[Result "0-1"]
[ECO "B40"]
[PlyCount "72"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd2 Bxc3 7. Bxc3 Nxe4 8. Qf3 Ng5 9. Qg4 d6 10. Be2 e5 11. Nf5 Nc6 12. Bd2 h6 13. 0-0 0-0 14. Bxg5 hxg5 15. Qh3 Nd4 16. Nxd4 Bxh3 17. gxh3 exd4 18. c3 dxc3 19. bxc3 Re8 20. Bg4 g6 21. Kg2 f5 22. Bf3 Qd7 23. Kg3 f4+ 24. Kg2 Re7 25. Bd5+ Kf8 26. Bf3 Rh7 27. Bg4 Qc6+ 28. Bf3 Qd7 29. Bg4 Qf7 30. Rfe1 f3+ 31. Kg1 Rh4 32. Be6 Qf6 33. Bg4 Rxg4+ 34. hxg4 Qh8 35. Red1 Qh3 36. Kh1 Qg2# 0-1

[Event "Wch FIDE Online U10 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.02"]
[Round "3"]
[White "Miranda Fernandez, Marcos Manuel"]
[Black "Rodriguez Membreno, Sebastian"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "1243"]
[PlyCount "63"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. d3 d6 3. Nd2 Nc6 4. Ngf3 Nf6 5. g3 Bg4 6. Bg2 Nd4 7. 0-0 Nxf3+ 8. Nxf3 h6 9. h3 Bh5 10. g4 Bg6 11. Nh4 Bh7 12. Nf5 Bxf5 13. exf5 Qd7 14. Qf3 Rb8 15. Bf4 e6 16. Rfe1 Be7 17. fxe6 fxe6 18. Qg3 0-0 19. c4 e5 20. Bd2 Ne8 21. f4 exf4 22. Bxf4 Bf6 23. Rab1 Bd4+ 24. Kh1 Nc7 25. Bxd6 Rfc8 26. Re7 Qd8 27. Rxc7 Rxc7 28. Bxc7 Be5 29. Bxe5 Rc8 30. Bd5+ Kh7 31. Qf3 Kg6 32. Qf5# 1-0

[Event "Wch FIDE Online U10 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.02"]
[Round "2"]
[White "Rodriguez Membreno, Sebastian"]
[Black "Faitelson, Nevo"]
[Result "0-1"]
[ECO "B56"]
[BlackElo "1717"]
[PlyCount "66"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 Ng4 7. Nxc6 bxc6 8. Bf4 Nf6 9. Be2 e5 10. Be3 Be7 11. Bg5 0-0 12. 0-0 Be6 13. h3 Rb8 14. b3 d5 15. exd5 cxd5 16. Bxf6 Bxf6 17. Bg4 Bxg4 18. Qxg4 e4 19. Ne2 Bxa1 20. Rxa1 f5 21. Qf4 Qf6 22. Ng3 Qxa1+ 23. Kh2 Qf6 24. Nh5 Qh6 25. Qh4 g5 26. Nf6+ Rxf6 27. Qg3 f4 28. Qg4 Rbf8 29. Qd7 Rd6 30. Qxa7 g4 31. a4 g3+ 32. fxg3 fxg3+ 33. Kxg3 Qf4# 0-1

