[Event "VIE-ch"]
[Site "Vung Tau"]
[Date "2023.03.05"]
[Round "4"]
[White "Bui, Dang Khoa"]
[Black "Nguyen, Huynh Tuan Hai"]
[Result "0-1"]
[ECO "B70"]
[WhiteElo "1999"]
[BlackElo "2066"]
[PlyCount "38"]
[EventDate "2023.03.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. g3 Nc6 7. Bg2 Nxd4 8. Qxd4 Bg7 9. 0-0 0-0 10. Qb4 Qc7 11. Qb5 Bd7 12. Qe2 Bg4 13. Qb5 Bd7 14. Qe2 Bg4 15. Qd3 Be6 16. Re1 Rfd8 17. e5 dxe5 18. Qb5 Ne8 19. Qxb7 Rab8 0-1

[Event "VIE-ch"]
[Site "Vung Tau"]
[Date "2023.03.05"]
[Round "5"]
[White "Huynh, Le Minh Hoang"]
[Black "Bui, Dang Khoa"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1469"]
[BlackElo "1999"]
[PlyCount "101"]
[EventDate "2023.03.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 Nd7 5. Qd2 Ngf6 6. f3 c6 7. 0-0-0 Nb6 8. Bh6 Bxh6 9. Qxh6 Qc7 10. Nh3 Bxh3 11. Qxh3 Qd7 12. Qg3 0-0-0 13. a4 Kb8 14. a5 Nc8 15. a6 Nb6 16. Qf2 d5 17. Be2 h5 18. Rhe1 Ka8 19. Bd3 Rhg8 20. e5 Ne8 21. b3 Ng7 22. axb7+ Kxb7 23. Kd2 Ne6 24. Ra1 Ra8 25. Na4 Nxa4 26. Rxa4 Kc7 27. Rea1 Kd8 28. f4 Ng7 29. Ba6 Ke8 30. Rb4 Kf8 31. Bb7 a5 32. Bxa8 axb4 33. Ra6 Qc8 34. Qf1 Ne6 35. Bxc6 Kg7 36. Qd3 Nxf4 37. Qb5 Qg4 38. Bxd5 Rd8 39. Bf3 Rxd4+ 40. Kc1 Qg5 41. Kb2 Rd2 42. Rc6 e6 43. Kb1 Nxg2 44. Qxb4 Ne1 45. Rc8 Qxe5 46. Qxd2 Nxf3 47. Qc3 Qxc3 48. Rxc3 Nd4 49. Rc4 Nb5 50. Rc5 Nd6 51. b4 1-0

[Event "VIE-ch"]
[Site "Vung Tau"]
[Date "2023.03.04"]
[Round "3"]
[White "Bui, Trong Hao"]
[Black "Bui, Dang Khoa"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2196"]
[BlackElo "1999"]
[PlyCount "127"]
[EventDate "2023.03.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bg7 8. h3 0-0 9. a3 Re8 10. Bb5 Bf5 11. 0-0 Rc8 12. Ne5 Qb6 13. Rc1 Red8 14. Bxc6 bxc6 15. Na4 Qb5 16. g4 Be6 17. Nc5 Ne4 18. Ned3 Bd7 19. f3 Nxc5 20. Nxc5 f6 21. Rc3 e5 22. Rb3 Qa5 23. Bg3 Qc7 24. Rb7 Qd6 25. Rxa7 Ra8 26. Qa4 Rxa7 27. Qxa7 Bc8 28. Kg2 Re8 29. a4 Bh6 30. Re1 Qe7 31. Qxe7 Rxe7 32. a5 Ra7 33. b4 Bf8 34. Rc1 exd4 35. exd4 Kf7 36. Be1 h5 37. gxh5 gxh5 38. Bd2 Bd6 39. Nd3 Bd7 40. h4 Ra8 41. Kf2 Rg8 42. Bf4 Be7 43. b5 cxb5 44. Rc7 Bf5 45. Nc5 Rc8 46. Rb7 Ke8 47. a6 Bxc5 48. dxc5 Bd7 49. a7 Bc6 50. Rb6 Kd7 51. Ke3 d4+ 52. Kxd4 Bxf3 53. Rxb5 Re8 54. Rb6 Bc6 55. Ra6 f5 56. Bb8 Ba8 57. Rd6+ Kc8 58. Rh6 f4 59. c6 f3 60. Rf6 Bxc6 61. Rxc6+ Kb7 62. Rf6 Rd8+ 63. Ke3 Rg8 64. Kxf3 1-0

[Event "VIE-ch"]
[Site "Vung Tau"]
[Date "2023.03.03"]
[Round "2"]
[White "Bui, Dang Khoa"]
[Black "Pham, Phu Quang"]
[Result "1-0"]
[ECO "E68"]
[WhiteElo "1999"]
[BlackElo "1928"]
[PlyCount "119"]
[EventDate "2023.03.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 0-0 5. g3 d6 6. Bg2 Nbd7 7. 0-0 e5 8. dxe5 dxe5 9. e4 c6 10. Qc2 Qc7 11. Rd1 Nc5 12. Be3 Na6 13. a3 Ng4 14. Qe2 Nxe3 15. Qxe3 Be6 16. Bf1 b6 17. b4 Rad8 18. b5 cxb5 19. Nxb5 Qb7 20. Ng5 Bg4 21. f3 Bc8 22. Nd6 Qe7 23. Nxc8 Rxc8 24. Bh3 Rcd8 25. Bf1 Bh6 26. f4 Qc5 27. Qxc5 Nxc5 28. Bg2 Bxg5 29. fxg5 Nb3 30. Rab1 Nd2 31. Rbc1 Rd4 32. c5 Nb3 33. Rxd4 exd4 34. Rb1 Nxc5 35. Rd1 Ne6 36. Kf2 Rc8 37. h4 Rc2+ 38. Kf1 Rc4 39. Ke2 Ra4 40. Ra1 Nc5 41. e5 d3+ 42. Ke3 Rg4 43. Kf2 Nd7 44. Bh3 Rd4 45. Ke3 Rd5 46. e6 Nc5 47. exf7+ Kxf7 48. Rf1+ Ke7 49. Bg2 Re5+ 50. Kd4 Re2 51. Bf3 Rc2 52. Re1+ Kd6 53. g4 d2 54. Rd1 Ra2 55. Bd5 Ne6+ 56. Ke4 Rc2 57. Kd3 Rc1 58. Bf3 Ke5 59. Kxd2 Rxd1+ 60. Bxd1 1-0

[Event "VIE-ch"]
[Site "Vung Tau"]
[Date "2023.03.03"]
[Round "1"]
[White "Nguyen, Phuoc Tam"]
[Black "Bui, Dang Khoa"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2185"]
[BlackElo "1999"]
[PlyCount "81"]
[EventDate "2023.03.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 g6 2. h4 Nf6 3. b3 d6 4. Bb2 e5 5. d3 Nc6 6. Nbd2 Bh6 7. e3 Bg4 8. Be2 Qd7 9. d4 exd4 10. Nxd4 Bxe2 11. Qxe2 Nxd4 12. Bxd4 Bg7 13. h5 Nxh5 14. Rxh5 gxh5 15. Bxg7 Rg8 16. Ne4 Qf5 17. Nf6+ Ke7 18. Qxh5 Qxh5 19. Nxh5 f5 20. g3 Kf7 21. Bc3 c6 22. Ke2 Rg6 23. Kf3 Rag8 24. a4 Re8 25. Rd1 d5 26. a5 a6 27. Nf4 Rh6 28. Nd3 Re4 29. Nc5 Re7 30. Kg2 Rh5 31. Rd4 Rg5 32. Rb4 Rg8 33. Nxb7 Ke6 34. Nc5+ Kd6 35. Nd3 Re4 36. Rb7 h5 37. Bb4+ c5 38. Bxc5+ Kc6 39. Rb6+ Kd7 40. Bd6 Rgg4 41. Ne5+ 1-0

[Event "VIE-ch U15"]
[Site "Ho Chi Minh City"]
[Date "2022.07.16"]
[Round "8"]
[White "Bui, Dang Khoa"]
[Black "Pham, Anh Kien"]
[Result "1/2-1/2"]
[ECO "A90"]
[WhiteElo "2300"]
[BlackElo "2308"]
[PlyCount "46"]
[EventDate "2022.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 f5 2. c4 e6 3. Nf3 Nf6 4. g3 d5 5. Bg2 c6 6. 0-0 Bd6 7. Nc3 Nbd7 8. Qc2 0-0 9. cxd5 cxd5 10. Bg5 h6 11. Bxf6 Nxf6 12. Nb5 Bb8 13. Rac1 Qb6 14. Nc3 Bd7 15. Qb3 Qxb3 16. axb3 Bd6 17. Rc2 Rfc8 18. Rfc1 Rc7 19. Na4 Rac8 20. Rxc7 Rxc7 21. Rxc7 Bxc7 22. Nc5 b6 23. Nxd7 Nxd7 1/2-1/2

[Event "VIE-ch U15"]
[Site "Ho Chi Minh City"]
[Date "2022.07.15"]
[Round "7"]
[White "Nguyen, Anh Hao"]
[Black "Bui, Dang Khoa"]
[Result "1/2-1/2"]
[ECO "A15"]
[WhiteElo "2290"]
[BlackElo "2300"]
[PlyCount "47"]
[EventDate "2022.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. c4 c6 4. Nc3 d5 5. b3 Bg7 6. Bb2 Na6 7. Bg2 0-0 8. 0-0 Re8 9. cxd5 cxd5 10. d4 Be6 11. Rc1 Rc8 12. Ne5 Nd7 13. Nxd5 Rxc1 14. Bxc1 Nxe5 15. dxe5 Bxe5 16. Nf4 Bxf4 17. Bxf4 Nb4 18. Qa1 Qb6 19. Bd2 Rd8 20. Bxb4 Qxb4 21. Rd1 Rxd1+ 22. Qxd1 Qa5 23. Bxb7 Qxa2 24. Bd5 1/2-1/2

[Event "VIE-ch U15"]
[Site "Ho Chi Minh City"]
[Date "2022.07.14"]
[Round "6"]
[White "Bui, Dang Khoa"]
[Black "Dang, Anh Minh"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2300"]
[BlackElo "2307"]
[PlyCount "160"]
[EventDate "2022.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 0-0 6. Bg2 d5 7. a3 Be7 8. c5 b6 9. cxb6 cxb6 10. Nc3 Ba6 11. a4 Nc6 12. 0-0 Rc8 13. Re1 Ne4 14. e3 Nb4 15. Bf1 Nd3 16. Bxd3 Bxd3 17. Ne5 Ba6 18. Rc1 f6 19. Nf3 Qd7 20. Qb3 Bc4 21. Qc2 Qb7 22. b3 Ba6 23. Qb2 Bd6 24. Na2 Qe7 25. Rxc8 Rxc8 26. Rc1 Qe8 27. Be1 Rxc1 28. Qxc1 g5 29. Nc3 Qc8 30. Qb2 g4 31. Nxe4 dxe4 32. Nd2 Bb4 33. Qb1 Bd3 34. Qd1 f5 35. Nc4 Bxc4 36. Bxb4 axb4 37. bxc4 Qxc4 38. a5 bxa5 39. Qa4 Qc8 40. Qxa5 Qb8 41. Qa6 Kf7 42. Qc6 b3 43. Qd7+ Kf6 44. Qxh7 b2 45. Qh6+ Ke7 46. Qg7+ Kd8 47. Qf8+ Kc7 48. Qe7+ Kc8 49. Qxe6+ Kb7 50. Qb3+ Kc7 51. Qf7+ Kc6 52. Qe6+ Kb7 53. Qb3+ Kc8 54. Qg8+ Kc7 55. Qf7+ Kd6 56. Qf6+ Kd5 57. Qf7+ Kc6 58. Qc4+ Kd6 59. Qc5+ Ke6 60. Qc6+ Ke7 61. Qc5+ Kf6 62. Qc6+ Kg5 63. Qd7 b1Q+ 64. Kg2 Q1b7 65. Qe6 Q8c8 66. Qd6 Qbc7 67. Qd5 Kf6 68. Qb5 Q8d7 69. Qa6+ Qdc6 70. Qa3 Kf7 71. Qa2+ Kg7 72. Qb3 Qc4 73. Qb2 Qa7 74. Qb1 Qaa6 75. Qd1 Qaa2 76. d5 Qxd5 77. Qc1 Qdc4 78. Qd1 Qd3 79. Qc1 Qdc2 80. Qe1 Qd2 0-1

[Event "VIE-ch U15"]
[Site "Ho Chi Minh City"]
[Date "2022.07.13"]
[Round "4"]
[White "Bui, Dang Khoa"]
[Black "Pham, Truong Phu"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2300"]
[BlackElo "2304"]
[PlyCount "77"]
[EventDate "2022.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 b5 6. a4 Bb7 7. Nc3 Qb6 8. Ne5 e6 9. a5 Qc7 10. a6 Bc8 11. Nxb5 Qb6 12. Nc3 Bxa6 13. 0-0 Nd5 14. e4 Nb4 15. Qh5 g6 16. Qf3 Qb7 17. Bg5 Bg7 18. Bf6 0-0 19. Ng4 Nd7 20. Bxg7 Kxg7 21. Qe3 Kg8 22. e5 Nc2 23. Qh6 Nxd4 24. Ne4 f5 25. Nef6+ Nxf6 26. Nxf6+ Rxf6 27. exf6 Bb5 28. Rad1 Ne2+ 29. Kh1 Qf7 30. Rfe1 c3 31. bxc3 Nxc3 32. Rd6 Qf8 33. Qxf8+ Rxf8 34. Rdxe6 Bd3 35. Rxc6 Ne4 36. f3 Bb5 37. Re6 Bc4 38. fxe4 Bxe6 39. exf5 1-0

[Event "VIE-ch U15"]
[Site "Ho Chi Minh City"]
[Date "2022.07.12"]
[Round "3"]
[White "An, Dinh Minh"]
[Black "Bui, Dang Khoa"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "2286"]
[BlackElo "2300"]
[PlyCount "70"]
[EventDate "2022.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb3 Nf6 6. Bd3 d5 7. exd5 Nxd5 8. c3 Bd6 9. 0-0 e5 10. Be4 Nde7 11. Be3 0-0 12. N1d2 f5 13. Nc4 Bc7 14. Bxc6 Nxc6 15. Bc5 Re8 16. Nd6 Bxd6 17. Qxd6 Qxd6 18. Bxd6 b6 19. Rfe1 Be6 20. Rad1 Rad8 21. Nc1 Rd7 22. Rd2 Red8 23. Red1 Na5 24. f4 e4 25. Rd4 Nc4 26. Ba3 Rxd4 27. Rxd4 Rxd4 28. cxd4 Nxa3 29. bxa3 Bc4 30. Kf2 Kf7 31. Ke3 Ke6 32. g4 g6 33. Nb3 Bxb3 34. axb3 b5 35. gxf5+ gxf5 0-1

[Event "VIE-ch U15"]
[Site "Ho Chi Minh City"]
[Date "2022.07.12"]
[Round "2"]
[White "Bui, Dang Khoa"]
[Black "Tong, Hai Anh"]
[Result "1/2-1/2"]
[ECO "D15"]
[WhiteElo "2300"]
[BlackElo "2291"]
[PlyCount "44"]
[EventDate "2022.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. g3 Bf5 6. Nh4 Be4 7. f3 Bg6 8. cxd5 cxd5 9. Nxg6 hxg6 10. Qb3 Ra7 11. Be3 e6 12. a4 Bd6 13. Bg2 Rxh2 14. Kf2 Qc7 15. g4 Nc6 16. Rxh2 Bg3+ 17. Kf1 Bxh2 18. Bf2 Bg3 19. Bg1 Na5 20. Qd1 Qf4 21. e3 Qc7 22. Rc1 Qd7 1/2-1/2

[Event "VIE-ch U15"]
[Site "Ho Chi Minh City"]
[Date "2022.07.11"]
[Round "1"]
[White "Tran, Dai Lam"]
[Black "Bui, Dang Khoa"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "2287"]
[BlackElo "2300"]
[PlyCount "115"]
[EventDate "2022.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Bc4 a6 4. a4 d5 5. exd5 exd5 6. Be2 Nf6 7. d4 Nc6 8. Bg5 cxd4 9. Nxd4 h6 10. Bh4 Be7 11. 0-0 Qb6 12. Nb3 0-0 13. Nc3 Be6 14. Bf3 Rad8 15. Bg3 d4 16. Ne4 d3 17. Ned2 dxc2 18. Qxc2 Nb4 19. Qc7 Qxc7 20. Bxc7 Rd3 21. Rae1 Bxb3 22. Nxb3 Rxb3 23. Rxe7 Nbd5 24. Bxd5 Nxd5 25. Rd7 Nxc7 26. Rxc7 Rxb2 27. g3 Rd8 28. Re1 Rb6 29. Ree7 Rf6 30. Re2 Rd1+ 31. Kg2 Rb1 32. Re8+ Kh7 33. Re2 g5 34. h3 Kg7 35. Rd2 a5 36. Rc4 b6 37. h4 gxh4 38. Rxh4 Rc1 39. Rb2 Rfc6 40. Rh5 R1c4 41. Rhb5 Rxa4 42. Rxb6 Rcc4 43. R2b5 Ra1 44. Ra6 a4 45. Ra7 Rc6 46. Rba5 Rf6 47. Rxa4 Rd1 48. Ra2 Rd5 49. R7a4 Rff5 50. Rb4 h5 51. Raa4 Rd6 52. Rf4 Rxf4 53. Rxf4 Kg6 54. Kh3 Rd2 55. Kg2 f6 56. Kh3 Kg5 57. Kg2 f5 58. Ra4 1/2-1/2

[Event "VIE-ch U15"]
[Site "Hanoi"]
[Date "2022.06.17"]
[Round "9"]
[White "Bui, Dang Khoa"]
[Black "Tran, Tuan Kiet"]
[Result "1/2-1/2"]
[ECO "A41"]
[WhiteElo "2315"]
[BlackElo "2316"]
[PlyCount "33"]
[EventDate "2022.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d6 2. c4 e5 3. dxe5 dxe5 4. Qxd8+ Kxd8 5. Nc3 Be6 6. e4 c6 7. Nf3 f6 8. Be3 Nd7 9. a3 Kc7 10. Be2 g6 11. Nd2 Bh6 12. Bxh6 Nxh6 13. b4 Nf7 14. 0-0 g5 15. Rac1 Rad8 16. Rfd1 h5 17. h3 1/2-1/2

[Event "VIE-ch U15"]
[Site "Hanoi"]
[Date "2022.06.16"]
[Round "8"]
[White "Tran, Ly Khoi Nguyen"]
[Black "Bui, Dang Khoa"]
[Result "0-1"]
[ECO "A32"]
[WhiteElo "2308"]
[BlackElo "2315"]
[PlyCount "71"]
[EventDate "2022.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e6 5. Nc3 Bb4 6. Bd2 Nc6 7. Nf3 0-0 8. a3 Bxc3 9. Bxc3 Ne4 10. Bd4 d5 11. e3 dxc4 12. Bxc4 Qa5+ 13. Ke2 e5 14. b4 exd4 15. bxa5 Nc3+ 16. Kd2 Nxd1 17. Rhxd1 Bg4 18. a6 bxa6 19. Rdc1 Bxf3 20. gxf3 Rad8 21. Ke2 Ne5 22. exd4 Rxd4 23. Bxa6 Rd6 24. Bb7 Rb6 25. Rab1 Re6 26. Kf1 g6 27. a4 Rd8 28. Rc3 Red6 29. Rc5 Nd3 30. Ra5 Nf4 31. Re1 Rd2 32. Rae5 Kg7 33. Re8 R8d6 34. Ra8 Rb6 35. Re4 Rb1+ 36. Re1 0-1

[Event "VIE-ch U15"]
[Site "Hanoi"]
[Date "2022.06.15"]
[Round "7"]
[White "Bui, Dang Khoa"]
[Black "Can, Chi Thanh1111"]
[Result "0-1"]
[ECO "E63"]
[WhiteElo "2315"]
[BlackElo "2305"]
[PlyCount "124"]
[EventDate "2022.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nc6 7. Nc3 a6 8. a3 e5 9. Bg5 exd4 10. Nxd4 Nxd4 11. Qxd4 h6 12. Bxf6 Bxf6 13. Qd2 Rb8 14. Rfd1 Be6 15. Nd5 Bg7 16. Rac1 Re8 17. b4 Qd7 18. Nf4 Bg4 19. h3 Bf5 20. c5 Be4 21. Bxe4 Rxe4 22. cxd6 cxd6 23. Qd5 Re5 24. Qxd6 Qxd6 25. Rxd6 g5 26. Nh5 Rxe2 27. Nxg7 Kxg7 28. Rc7 Ra2 29. Rdd7 Rf8 30. Rd3 Re8 31. Rxb7 Re1+ 32. Kg2 Raa1 33. Rdd7 Rg1+ 34. Kf3 Rxa3+ 35. Ke4 Re1+ 36. Kd4 Rf3 37. Kc5 Rxf2 38. Rd3 Re6 39. Kc4 Kg6 40. Rbd7 h5 41. R7d4 Rfe2 42. g4 f5 43. gxf5+ Kxf5 44. Rf3+ Ke5 45. Rd5+ Ke4 46. Rff5 g4 47. Rxh5 g3 48. Rhg5 Kf3 49. Rd8 Kg2 50. Rdg8 R2e3 51. Kd5 Rb6 52. Kc4 Kxh3 53. R8g7 Kh2 54. Rh7+ Kg2 55. Rhg7 Kf2 56. Rf7+ Rf3 57. Rd7 Rf4+ 58. Kc3 Rf3+ 59. Kc4 Re6 60. Rd2+ Re2 61. Rxe2+ Kxe2 62. Rg6 Ra3 0-1

[Event "VIE-ch U15"]
[Site "Hanoi"]
[Date "2022.06.15"]
[Round "6"]
[White "Doan, Tat Thang"]
[Black "Bui, Dang Khoa"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "2304"]
[BlackElo "2315"]
[PlyCount "186"]
[EventDate "2022.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 d6 6. bxa6 Bxa6 7. Bxa6 Nxa6 8. Ne2 g6 9. b3 Bg7 10. Bb2 Nb4 11. Nbc3 Nfxd5 12. 0-0 Nxc3 13. Bxc3 Bxc3 14. Nxc3 0-0 15. a3 Nc6 16. Qd5 Qc7 17. Nb5 Qd7 18. Rfd1 Rfb8 19. a4 Nb4 20. Qc4 Nc6 21. h3 Na7 22. Nc3 Qe6 23. Nd5 Nc6 24. Rab1 Nb4 25. e4 Nxd5 26. exd5 Qf6 27. Re1 Rb4 28. Qe2 Kf8 29. Qe3 Ra7 30. Rbd1 Rab7 31. Rd3 Qf4 32. Qxf4 Rxf4 33. Ra1 Ra7 34. Rd2 Rb4 35. Ra3 c4 36. bxc4 Rxc4 37. a5 Ra6 38. Rb2 Rc5 39. Rb8+ Kg7 40. Re3 Rxd5 41. Rxe7 Raxa5 42. Rbb7 Rf5 43. g4 Rf6 44. Re2 Ra4 45. Rd7 Rd4 46. Kg2 Rd3 47. Rd8 g5 48. Re5 dxe5 49. Rxd3 Rf4 50. Rd5 f6 51. Rd7+ Kg6 52. Kg3 h5 53. Rd8 hxg4 54. hxg4 Kf7 55. f3 Ke7 56. Rd3 Ke6 57. Rd8 Rd4 58. Rf8 Rd3 59. Kf2 Rd4 60. Ke3 Rf4 61. Re8+ Kf7 62. Ra8 e4 63. Ra7+ Kg6 64. fxe4 Rxg4 65. Ra6 Kf7 66. Ra7+ Ke8 67. Ra8+ Kd7 68. Ra7+ Kc8 69. Rf7 Kd8 70. Ra7 Rf4 71. Ra8+ Ke7 72. Ra7+ Ke6 73. Ra6+ Kf7 74. Ra7+ Kg6 75. Ra6 Kh5 76. Ra8 Kg4 77. Rg8 Rf1 78. Ke2 Ra1 79. Rf8 Ra6 80. Ke3 Re6 81. Kd4 Kf4 82. Kd5 Re5+ 83. Kd6 Rxe4 84. Rxf6+ Kg3 85. Kd5 Re8 86. Kd4 g4 87. Rg6 Kf3 88. Kd3 Rd8+ 89. Kc2 g3 90. Rf6+ Kg2 91. Kc3 Kg1 92. Rg6 g2 93. Rg5 Rf8 0-1

[Event "VIE-ch U15"]
[Site "Hanoi"]
[Date "2022.06.14"]
[Round "5"]
[White "Bui, Dang Khoa"]
[Black "Tran, Ngoc Minh Duy"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "2315"]
[BlackElo "2326"]
[PlyCount "189"]
[EventDate "2022.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg5 a6 7. Bxf6 Qxf6 8. Qxc4 c5 9. Bg2 b5 10. Qc3 Bb7 11. dxc5 Bxc5 12. Qxf6 Nxf6 13. 0-0 Ke7 14. Nbd2 Rhd8 15. Nb3 Bb6 16. Rac1 Rac8 17. Ne5 Nd5 18. Nd3 a5 19. a3 Rc4 20. Nd2 Rcc8 21. Nb3 Ba8 22. Nbc5 Bxc5 23. Rxc5 Rxc5 24. Nxc5 Nb6 25. Bxa8 Rxa8 26. Rc1 Rc8 27. Kf1 Na4 28. b4 Nxc5 29. bxc5 Rc7 30. e4 Kd7 31. Ke2 Kc6 32. Kd3 Rd7+ 33. Ke3 e5 34. f4 f6 35. fxe5 fxe5 36. Rf1 Kxc5 37. Rc1+ Kb6 38. Rc8 Rc7 39. Rb8+ Kc5 40. Re8 Kd6 41. Rd8+ Ke6 42. Re8+ Kf6 43. Kd3 Rd7+ 44. Ke3 Rd4 45. Rb8 Ra4 46. Rxb5 Rxa3+ 47. Kf2 Ra2+ 48. Kf3 a4 49. h4 Ra3+ 50. Kf2 Rb3 51. Ra5 a3 52. g4 Rh3 53. Ra7 Rxh4 54. Kg3 Rh1 55. Rxa3 Rg1+ 56. Kh4 Rh1+ 57. Kg3 Re1 58. Kf3 Rf1+ 59. Kg3 Rf4 60. Ra4 Kg5 61. Ra7 Rxg4+ 62. Kf3 Kh4 63. Ra5 Rg5 64. Ra1 Rg3+ 65. Kf2 h6 66. Ra5 Rg5 67. Kf3 Kh5 68. Ra6 Rg6 69. Ra5 Re6 70. Ra1 g5 71. Ra8 Rf6+ 72. Ke3 Kg4 73. Re8 Rf3+ 74. Ke2 Ra3 75. Rxe5 Kf4 76. Re6 h5 77. Kf2 Rf3+ 78. Kg2 Re3 79. Rf6+ Kxe4 80. Rh6 h4 81. Rf6 g4 82. Rf8 h3+ 83. Kh2 Rf3 84. Rg8 Rf2+ 85. Kg1 Rf4 86. Kh2 Kf3 87. Ra8 Rf5 88. Ra3+ Kf4 89. Ra8 Rf6 90. Rb8 Kg5 91. Rg8+ Rg6 92. Rf8 Kh6 93. Kg3 Kg7 94. Ra8 Rh6 95. Ra5 1/2-1/2

[Event "VIE-ch U15"]
[Site "Hanoi"]
[Date "2022.06.13"]
[Round "3"]
[White "Bui, Dang Khoa"]
[Black "Tran, Minh Tri"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2315"]
[BlackElo "2303"]
[PlyCount "77"]
[EventDate "2022.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Nbd7 5. Bg2 c6 6. 0-0 Bd6 7. cxd5 cxd5 8. Nc3 a6 9. a4 0-0 10. Rb1 Nb6 11. a5 Nc4 12. b4 Qe7 13. Qb3 Bd7 14. Bg5 h6 15. Bxf6 Qxf6 16. e4 dxe4 17. Nxe4 Qf5 18. Qxc4 Bb5 19. Nxd6 Bxc4 20. Nxf5 Bxf1 21. Ne7+ Kh8 22. Rxf1 Rfe8 23. Nc6 bxc6 24. Ne5 Re7 25. Nxc6 Rc7 26. Rc1 Rac8 27. Rc5 Re8 28. Ne5 Ree7 29. Bf1 Rxc5 30. dxc5 Ra7 31. c6 Rc7 32. Bg2 Kg8 33. Nd7 Ra7 34. Nc5 Kf8 35. Nxa6 Ke7 36. c7 Kd7 37. b5 Kc8 38. Kf1 e5 39. Bh3+ 1-0

[Event "VIE-ch U15"]
[Site "Hanoi"]
[Date "2022.06.13"]
[Round "4"]
[White "Pham, Truong Phu"]
[Black "Bui, Dang Khoa"]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "2306"]
[BlackElo "2315"]
[PlyCount "133"]
[EventDate "2022.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d3 d5 6. Nbd2 c5 7. c3 Nc6 8. e4 dxe4 9. dxe4 Qc7 10. Qc2 Rd8 11. Nc4 e5 12. Bg5 Be6 13. Ne3 Rd7 14. Rad1 Rad8 15. Nd2 h6 16. Bxf6 Bxf6 17. Nd5 Bxd5 18. exd5 Na5 19. c4 b6 20. Bh3 Nb7 21. Bxd7 Rxd7 22. h4 h5 23. Rfe1 Bg7 24. Ne4 Nd6 25. Nxd6 Qxd6 26. Qa4 f5 27. Qc6 e4 28. Qxd6 Rxd6 29. Re2 Bd4 30. b4 Kf7 31. Kg2 Rd8 32. f3 e3 33. Rd3 Re8 34. b5 Kf6 35. f4 Kf7 36. Ra3 Re7 37. Ra6 Ke8 38. a4 Bc3 39. Kf3 Bd2 40. a5 bxa5 41. Rc6 Re4 42. Rxc5 a4 43. Rc7 a3 44. Rxa7 Rxc4 45. b6 Rb4 46. b7 Kd8 47. d6 a2 48. Rxa2 Rxb7 49. Ra8+ Kd7 50. Rg8 Kxd6 51. Rxg6+ Kd5 52. Rf6 Rh7 53. Rxf5+ Kd4 54. Rf8 Kd5 55. Rd8+ Kc6 56. Rxe3 Bxe3 57. Kxe3 Kc7 58. Rd1 Rg7 59. Kf3 Kc6 60. f5 Kc5 61. Rd8 Kc6 62. Rh8 Kd5 63. Rxh5 Ke5 64. Rg5 Rxg5 65. hxg5 Kxf5 66. g6 Kxg6 67. Kg4 1-0

[Event "VIE-ch U15"]
[Site "Hanoi"]
[Date "2022.06.12"]
[Round "2"]
[White "Ho, Tan Minh Dang"]
[Black "Bui, Dang Khoa"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "2324"]
[BlackElo "2315"]
[PlyCount "86"]
[EventDate "2022.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. f3 Qb6 7. e5 Qa5+ 8. Nc3 Qxe5+ 9. Be2 Bb4 10. f4 Qd6 11. Be3 Nc6 12. 0-0 0-0 13. Nf3 Qxd1 14. Raxd1 Bxc3 15. bxc3 d5 16. Ne5 Nxe5 17. fxe5 Ne4 18. Rc1 b5 19. c5 Bb7 20. Bd3 Rac8 21. Bxe4 dxe4 22. Rcd1 Bd5 23. a3 Bc4 24. Rf2 Bd3 25. Ra1 Rb8 26. Rb2 h6 27. Rb4 Rfd8 28. Kf2 Rd5 29. Bd4 a5 30. Rb2 a4 31. Rc1 Kf8 32. Ke3 Rc8 33. Rf2 Ke7 34. g4 Rcxc5 35. Bxc5+ Rxc5 36. Rb2 Rxe5 37. Rb4 g5 38. h4 f5 39. hxg5 hxg5 40. Rh1 f4+ 41. Kf2 e3+ 42. Kf3 Bc4 43. Rhb1 Bd5+ 0-1

[Event "VIE-ch U15"]
[Site "Hanoi"]
[Date "2022.06.11"]
[Round "1"]
[White "Bui, Dang Khoa"]
[Black "Nguyen, Xuan Anh"]
[Result "0-1"]
[ECO "D32"]
[WhiteElo "2315"]
[BlackElo "2330"]
[PlyCount "104"]
[EventDate "2022.06.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 c5 2. c4 e6 3. Nf3 d5 4. cxd5 exd5 5. Nc3 Nf6 6. Bg5 Be7 7. dxc5 Be6 8. e3 0-0 9. b4 a5 10. a3 axb4 11. axb4 Nc6 12. Rxa8 Qxa8 13. b5 Nb4 14. Be2 Qa3 15. Nb1 Qb2 16. 0-0 Bxc5 17. Qd2 Qxd2 18. Nbxd2 Ne4 19. Nxe4 dxe4 20. Nd2 f5 21. Bc4 Kf7 22. Bxe6+ Kxe6 23. Nb3 Bb6 24. Nd4+ Bxd4 25. exd4 h6 26. Be3 f4 27. Bd2 Nc2 28. Rc1 Nxd4 29. Rc4 Rd8 30. Kf1 g5 31. Bc3 Nxb5 32. Rxe4+ Kd5 33. Re5+ Kc4 34. Ba5 Rd5 35. Re7 Nd6 36. Bb6 Kb5 37. Bc7 Nf5 38. Re6 Rd1+ 39. Ke2 Nd4+ 40. Kxd1 Nxe6 41. Be5 Kc4 42. g3 f3 43. h4 g4 44. h5 Kd3 45. Bb2 Nd4 46. Bc1 Ne2 47. Bxh6 Nxg3 48. Be3 Nxh5 49. Bb6 g3 50. fxg3 Nxg3 51. Ke1 Ne4 52. Kf1 f2 0-1

[Event "Eastern Asia-ch U14"]
[Site "Tornelo INT"]
[Date "2021.10.31"]
[Round "8"]
[White "Aggarwal, Riyan"]
[Black "Bui, Dang Khoa"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1167"]
[PlyCount "64"]
[EventDate "2021.10.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 g6 3. Bd3 d5 4. Nd2 Bg7 5. f4 0-0 6. Ngf3 Nbd7 7. 0-0 c5 8. c3 b6 9. Ne5 Bb7 10. Bc2 Rc8 11. Qe2 Ne8 12. Ndf3 Nc7 13. Bd3 e6 14. Bd2 f6 15. Ng4 Qe7 16. Be1 e5 17. fxe5 fxe5 18. Bh4 Qe6 19. Ng5 Qd6 20. dxe5 Nxe5 21. Bg3 Qe7 22. Bxe5 Bxe5 23. Nxe5 Qxe5 24. Nf3 Qe7 25. Rae1 Rce8 26. Nd2 Rxf1+ 27. Kxf1 Ne6 28. e4 Nf4 29. Qf3 Rf8 30. Kg1 Qh4 31. Bf1 Qxe1 32. exd5 Qxd2 0-1

[Event "Eastern Asia-ch U14"]
[Site "Tornelo INT"]
[Date "2021.10.31"]
[Round "7"]
[White "Bui, Dang Khoa"]
[Black "Hiew, Jing Yung"]
[Result "1/2-1/2"]
[ECO "D11"]
[BlackElo "1225"]
[PlyCount "86"]
[EventDate "2021.10.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 Bf5 5. Nc3 e6 6. Bg2 h6 7. 0-0 Be7 8. Re1 0-0 9. Qb3 Qb6 10. c5 Qxb3 11. axb3 Nbd7 12. Bf4 Ne4 13. Nd2 Nxd2 14. Bxd2 Bf6 15. e3 e5 16. Ne2 Rfe8 17. Bc3 a6 18. b4 Re7 19. Rad1 Rae8 20. Rd2 g5 21. dxe5 Nxe5 22. Bxe5 Rxe5 23. Nd4 Bg6 24. Bf1 Kg7 25. Bd3 Bxd3 26. Rxd3 Kg6 27. b3 Re4 28. Nc2 Bg7 29. f3 R4e7 30. g4 f5 31. gxf5+ Kxf5 32. Kf2 h5 33. h3 h4 34. Nd4+ Kg6 35. Ne2 Kh5 36. Rg1 Rf8 37. Rg4 Ref7 38. f4 Bh6 39. Kf3 Rf5 40. Rd4 Bg7 41. Rd3 Bh6 42. Rd4 Bg7 43. Rd3 Bh6 1/2-1/2

[Event "Eastern Asia-ch U14"]
[Site "Tornelo INT"]
[Date "2021.10.31"]
[Round "9"]
[White "Bui, Dang Khoa"]
[Black "Nguyen, Hoai An"]
[Result "1-0"]
[ECO "D78"]
[BlackElo "1438"]
[PlyCount "69"]
[EventDate "2021.10.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d5 3. Nf3 c6 4. g3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. Nc3 Bf5 8. Re1 Na6 9. a3 Nc7 10. Qb3 Qc8 11. Bf4 Ne6 12. Be5 dxc4 13. Qxc4 Nc7 14. Rac1 Ncd5 15. Nxd5 cxd5 16. Qb3 Qd8 17. Qxb7 Ne8 18. Bxg7 Kxg7 19. Ne5 Rb8 20. Qxa7 Rxb2 21. Nc6 Qd6 22. Qxe7 Qxe7 23. Nxe7 Nf6 24. Nxd5 Ra2 25. Nxf6 Kxf6 26. e4 Bd7 27. e5+ Ke7 28. Rc3 Rd8 29. d5 h6 30. Rc7 Ke8 31. e6 fxe6 32. dxe6 Bb5 33. Be4 Bd3 34. Bc6+ Kf8 35. e7+ 1-0

[Event "Eastern Asia-ch U14"]
[Site "Tornelo INT"]
[Date "2021.10.30"]
[Round "5"]
[White "Bui, Dang Khoa"]
[Black "Alisherov, Alikhan"]
[Result "1/2-1/2"]
[ECO "E08"]
[BlackElo "1343"]
[PlyCount "97"]
[EventDate "2021.10.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Be7 4. g3 c6 5. Bg2 Nd7 6. 0-0 Ngf6 7. Nc3 0-0 8. b3 b6 9. Qc2 Bb7 10. Bb2 Rc8 11. Rad1 Qc7 12. cxd5 cxd5 13. Qd3 Ne4 14. Nb5 Qb8 15. Nd2 Nxd2 16. Qxd2 Ba6 17. a4 Bxb5 18. axb5 Nf6 19. Rc1 Rxc1 20. Rxc1 Rc8 21. f3 Ne8 22. Bf1 Rxc1 23. Qxc1 Qc7 24. e4 Qxc1 25. Bxc1 dxe4 26. fxe4 Nd6 27. Bd3 f5 28. e5 Ne8 29. Kf2 Kf7 30. Bc4 Nc7 31. Ke2 g5 32. Kf3 g4+ 33. Ke2 Kg6 34. Bf4 Bg5 35. Kf2 h5 36. Ke2 h4 37. Kf2 hxg3+ 38. hxg3 Bxf4 39. gxf4 Kf7 40. Kg3 Ke7 41. Kf2 Kd7 42. Kg3 Ke7 43. Kg2 Kf7 44. Kg3 Kg6 45. Kg2 Kh6 46. Kh2 Kh5 47. Kg3 Kg6 48. Kg2 Kf7 49. Kg3 1/2-1/2

[Event "Eastern Asia-ch U14"]
[Site "Tornelo INT"]
[Date "2021.10.30"]
[Round "4"]
[White "M Mohd Nur, Megat Muhd Irfan"]
[Black "Bui, Dang Khoa"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1245"]
[PlyCount "101"]
[EventDate "2021.10.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. Na3 Nf6 5. Nf3 Bg4 6. Be2 e6 7. h3 Bf5 8. Nb5 Bd6 9. Nxd6+ Qxd6 10. d4 Nbd7 11. Be3 cxd4 12. Qxd4 Qxd4 13. Nxd4 Bg6 14. 0-0 0-0 15. Rad1 Rfd8 16. Bf3 Be4 17. Bxe4 Nxe4 18. Nb3 b6 19. Rd4 Ndc5 20. Nxc5 Nxc5 21. Rfd1 Rxd4 22. Rxd4 Kf8 23. Rh4 h6 24. Bxc5+ bxc5 25. Rc4 Rb8 26. b3 Rb5 27. Ra4 Rb7 28. Rc4 Rb5 29. a4 Rxb3 30. Rxc5 Rb7 31. a5 Ke7 32. a6 Rd7 33. Rb5 Kd6 34. c4 Rc7 35. Rb4 f5 36. g3 g5 37. Kg2 Rc6 38. Rb8 Rxa6 39. Rh8 Ra4 40. Rxh6 Rxc4 41. Rg6 g4 42. h4 Rc7 43. Rg8 Ke5 44. Ra8 Kf6 45. Rf8+ Kg7 46. Re8 Kf7 47. Rh8 Kf6 48. Rf8+ Ke5 49. Ra8 Ke4 50. Re8 Ke5 51. Ra8 1/2-1/2

[Event "Eastern Asia-ch U14"]
[Site "Tornelo INT"]
[Date "2021.10.30"]
[Round "6"]
[White "Porwal, Dhruv"]
[Black "Bui, Dang Khoa"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1218"]
[PlyCount "156"]
[EventDate "2021.10.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c3 d5 4. g3 Bg7 5. Bg2 0-0 6. 0-0 c6 7. Re1 Re8 8. Nbd2 Nbd7 9. e4 dxe4 10. Nxe4 Nxe4 11. Rxe4 Nf6 12. Re1 Bf5 13. Bf4 Qb6 14. Qb3 Nd5 15. Bd2 Rad8 16. Ne5 Be6 17. Qc2 Qc7 18. Qc1 Bf5 19. Bh6 f6 20. Bxg7 Kxg7 21. Nc4 Bd3 22. Ne3 Nb6 23. Qd2 Bc4 24. Nxc4 Nxc4 25. Qe2 Nb6 26. Qc2 e5 27. dxe5 Rxe5 28. Rad1 Rde8 29. Rxe5 Rxe5 30. Qd3 Qe7 31. Bf3 Na4 32. Qc2 Nc5 33. Kg2 Re1 34. Rxe1 Qxe1 35. h3 Qe6 36. a3 Qe1 37. h4 h5 38. a4 Qe6 39. Qd1 Qe7 40. Qd4 a6 41. Kf1 Nd7 42. Bd1 Ne5 43. Bc2 Qd7 44. Qe4 Qh3+ 45. Ke1 Qg4 46. Qxg4 Nxg4 47. Bb3 Ne5 48. Kd2 g5 49. Be6 gxh4 50. gxh4 b6 51. Ke3 Ng6 52. Bd7 Nxh4 53. Bxc6 a5 54. Be8 Kh6 55. b4 Nf5+ 56. Kf4 Nd6 57. Bc6 Nc8 58. bxa5 bxa5 59. c4 Ne7 60. Bf3 Kg6 61. c5 f5 62. c6 Kf6 63. c7 Ke6 64. Bb7 Kd7 65. c8Q+ Nxc8 66. Bxc8+ Kxc8 67. Kxf5 Kd7 68. Kg5 Ke6 69. Kxh5 Kf5 70. Kh6 Kf4 71. Kg6 Kf3 72. Kf5 Kxf2 73. Ke5 Kf3 74. Kd5 Kf4 75. Kc5 Ke5 76. Kb5 Kd6 77. Kxa5 Kc7 78. Ka6 Kb8 1/2-1/2

[Event "Eastern Asia-ch U14"]
[Site "Tornelo INT"]
[Date "2021.10.29"]
[Round "1"]
[White "Bui, Dang Khoa"]
[Black "Krishnan, Ritvik"]
[Result "0-1"]
[ECO "E63"]
[BlackElo "1346"]
[PlyCount "104"]
[EventDate "2021.10.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nc6 7. Nc3 a6 8. Re1 Re8 9. Bg5 h6 10. Bf4 g5 11. Be3 Rb8 12. d5 Na5 13. Qd3 b5 14. cxb5 axb5 15. b4 Nc4 16. Nd4 Bd7 17. Rab1 Ng4 18. Bc1 Nge5 19. Qc2 Qc8 20. Nf3 c6 21. Nxe5 Bxe5 22. a4 cxd5 23. axb5 d4 24. Ne4 Bxb5 25. h4 f5 26. Nd2 Nxd2 27. Qxd2 Bf6 28. hxg5 hxg5 29. Bb2 e5 30. Bd5+ Kg7 31. Ra1 Bc6 32. Rec1 Bxd5 33. Rxc8 Rexc8 34. Ra7+ Rb7 35. Rxb7+ Bxb7 36. b5 Rh8 37. f3 g4 38. Qa5 Kg6 39. Qc7 Rh7 40. Qxd6 gxf3 41. exf3 Bxf3 42. Ba3 e4 43. Qf8 d3 44. Qg8+ Rg7 45. Qe8+ Kg5 46. Bc1+ Kg4 47. Qh8 Kxg3 48. Qh2+ Kg4 49. Be3 Bh4 50. Bd4 Rg6 51. Qb8 Kh3+ 52. Kf1 Be2# 0-1

[Event "Eastern Asia-ch U14"]
[Site "Tornelo INT"]
[Date "2021.10.29"]
[Round "3"]
[White "Bui, Dang Khoa"]
[Black "Weerasekara, Dinul Vinsitha"]
[Result "1-0"]
[ECO "E06"]
[BlackElo "1192"]
[PlyCount "57"]
[EventDate "2021.10.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 c6 6. 0-0 b6 7. Nc3 Nbd7 8. cxd5 cxd5 9. Bf4 Bb7 10. Nb5 0-0 11. Rc1 a6 12. Bc7 Qe8 13. Nd6 Bxd6 14. Bxd6 Ne4 15. Bxf8 Kxf8 16. Rc7 Rb8 17. Qa4 b5 18. Qb4+ Kg8 19. Ne5 Nxe5 20. dxe5 Qd8 21. Rfc1 Rc8 22. Rxc8 Bxc8 23. Bxe4 dxe4 24. Qd6 Qe8 25. Rc7 h6 26. Qc5 Bd7 27. Qa7 Bc6 28. Qxa6 Bd7 29. Qb7 1-0

[Event "Eastern Asia-ch U14"]
[Site "Tornelo INT"]
[Date "2021.10.29"]
[Round "2"]
[White "Ekansh, Goel"]
[Black "Bui, Dang Khoa"]
[Result "1-0"]
[ECO "D87"]
[WhiteElo "1190"]
[PlyCount "87"]
[EventDate "2021.10.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NET"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 0-0 9. 0-0 Nc6 10. Be3 Qa5 11. Rb1 cxd4 12. cxd4 a6 13. Qc2 e6 14. Rfd1 Bd7 15. Rxb7 Rfd8 16. d5 exd5 17. Bb6 Qb4 18. Bxd5 Rac8 19. Rb1 Qd6 20. Bxd8 Nxd8 21. Qd1 Nxb7 22. Rxb7 Qe7 23. Bxf7+ Qxf7 24. Rxd7 Qxa2 25. g3 a5 26. Nf4 Bf6 27. Qd5+ Qxd5 28. Nxd5 Bd8 29. Ra7 Rb8 30. Kg2 h5 31. h4 Kf8 32. Kf3 Rb3+ 33. Kf4 Rb2 34. f3 Rb3 35. e5 Rd3 36. Ke4 Rd1 37. Nf4 Bb6 38. Nxg6+ Kg8 39. Rb7 Bf2 40. Kf5 Rc1 41. Nf4 Rc8 42. Nxh5 Rc3 43. Nf6+ Kf8 44. Kg6 1-0

[Event "VIE-ch U13"]
[Site "Hanoi"]
[Date "2020.??.??"]
[Round "5"]
[White "Bui, Dang Khoa"]
[Black "Bach, The Vinh"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2320"]
[BlackElo "2319"]
[PlyCount "126"]
[EventDate "2020.10.22"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nf6 4. Bg2 Nc6 5. Nge2 e6 6. d4 cxd4 7. Nxd4 Bd7 8. 0-0 Be7 9. Ndb5 Qb8 10. Bf4 e5 11. Bg5 a6 12. Bxf6 gxf6 13. Na3 Be6 14. Nd5 Bxd5 15. Qxd5 Qc8 16. c3 Qe6 17. Rad1 h5 18. Nc4 Rd8 19. Ne3 Bf8 20. Nf5 Qxd5 21. Rxd5 Kd7 22. Rfd1 Kc7 23. R5d3 Be7 24. Ne3 Rh7 25. Bh3 h4 26. Bf5 Rg7 27. Nd5+ Kb8 28. Nxe7 Nxe7 29. Rxd6 Rxd6 30. Rxd6 hxg3 31. fxg3 Ng8 32. Kf2 Kc7 33. Rd7+ Kc6 34. Rd3 Ne7 35. Bd7+ Kc7 36. h4 Ng6 37. Bf5 Nf8 38. h5 Rg5 39. g4 Rg8 40. Kf3 Ne6 41. Bxe6 fxe6 42. Rd1 Rg7 43. c4 Kc6 44. b4 b6 45. a4 a5 46. bxa5 bxa5 47. Rb1 Kc5 48. Rb5+ Kxc4 49. Rxa5 Rb7 50. Ra6 Rb3+ 51. Kg2 Kd4 52. Rxe6 Kxe4 53. Rxf6 Ra3 54. h6 Rxa4 55. h7 Ra8 56. g5 Kd5 57. g6 Ra2+ 58. Rf2 Ra6 59. h8Q Rxg6+ 60. Kf1 e4 61. Qh5+ Kd4 62. Qxg6 e3 63. Rf4+ Kc3 1-0

[Event "VIE-ch U13"]
[Site "Hanoi"]
[Date "2020.??.??"]
[Round "7"]
[White "Bui, Dang Khoa"]
[Black "Dang, Anh Minh"]
[Result "0-1"]
[ECO "B26"]
[WhiteElo "2320"]
[BlackElo "2014"]
[PlyCount "172"]
[EventDate "2020.10.22"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nge2 d6 6. 0-0 e5 7. d3 Nge7 8. f4 0-0 9. Be3 Nd4 10. Qd2 Be6 11. Rf2 Qd7 12. Raf1 Rad8 13. Nc1 b6 14. N3e2 d5 15. Bxd4 exd4 16. f5 gxf5 17. exd5 Bxd5 18. Bh3 Ng6 19. Bxf5 Qd6 20. Nf4 Nxf4 21. gxf4 Kh8 22. Ne2 Bh6 23. Ng3 Rg8 24. Bh3 Rde8 25. Bg2 Be6 26. Kh1 Qd8 27. Qd1 Bg4 28. Bf3 Bd7 29. Bg2 f5 30. Qh5 Qf6 31. Bh3 Qg6 32. Qxg6 hxg6 33. Bg2 Re3 34. Bd5 Rg7 35. Re2 Rge7 36. Rg2 Re1 37. Rgg1 Rxf1 38. Rxf1 Kg7 39. Kg2 Kf6 40. Rf2 Re1 41. b3 b5 42. Rf1 Rxf1 43. Nxf1 Bxf4 44. Kf3 Bd6 45. h3 g5 46. Ng3 Be8 47. Ne2 Ke5 48. Bb7 b4 49. Ng3 Kf6 50. Ne2 a5 51. Bd5 Bg6 52. Bb7 Bf7 53. Bc6 Be5 54. Bb7 Ke7 55. Bc6 Kd6 56. Bb5 Bd5+ 57. Kf2 Ke7 58. Ba6 Be6 59. Bb7 Kf6 60. Kf3 Kg6 61. Bc6 Kh5 62. Ng1 Bh2 63. Ne2 Bd6 64. Kg2 Bc8 65. Be8+ Kh4 66. Bc6 Be6 67. Ng1 Bf4 68. Nf3+ Kh5 69. Be8+ Kh6 70. Bc6 Kg7 71. Ng1 Be3 72. Ne2 f4 73. Bf3 Kg6 74. Kh2 Bd7 75. Kg2 Kf6 76. Bd5 a4 77. Bb7 a3 78. Bd5 Kg6 79. Bf3 Kh6 80. Kh2 Bf5 81. Kg2 c4 82. dxc4 Bxc2 83. c5 d3 84. Ng1 Bxc5 85. Be4 Bxg1 86. Kxg1 Bxb3 0-1

[Event "VIE-ch U13"]
[Site "Hanoi"]
[Date "2020.??.??"]
[Round "9"]
[White "Bui, Dang Khoa"]
[Black "Dang, Ngoc Minh"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2320"]
[BlackElo "1556"]
[PlyCount "82"]
[EventDate "2020.10.22"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "VIE"]
[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. Nf3 Nc6 5. Be3 Bg4 6. Be2 e6 7. 0-0 Bd6 8. Nbd2 Nf6 9. c4 0-0 10. h3 Bh5 11. c5 Bb8 12. a3 a5 13. Rb1 Qc7 14. g3 Bg6 15. Rc1 Ne4 16. Bf4 Qe7 17. Bxb8 Raxb8 18. Nh4 Qf6 19. Nxg6 Qxg6 20. Nf3 f5 21. Kg2 Ng5 22. Nxg5 Qxg5 23. Rc3 f4 24. g4 f3+ 25. Bxf3 Rf4 26. Rd3 Qf6 27. Qd2 Rf8 28. Bd1 Nxd4 29. f3 h5 30. gxh5 Nf5 31. Qf2 Nh4+ 32. Kh1 Qf5 33. Be2 Qxh3+ 34. Qh2 Qf5 35. h6 Ng6 36. hxg7 Rf7 37. Qg3 Rxg7 38. Rf2 Ne5 39. Qxg7+ Kxg7 40. Rb3 Qh7+ 41. Kg1 Kf6 0-1

[Event "VIE-ch U13"]
[Site "Hanoi"]
[Date "2020.??.??"]
[Round "2"]
[White "Bui, Dang Khoa"]
[Black "Nguyen, Tran Duy Anh"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "2320"]
[BlackElo "1458"]
[PlyCount "86"]
[EventDate "2020.10.22"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Ne2 Nf6 6. 0-0 0-0 7. Bg5 Bxh2+ 8. Kh1 Bd6 9. b3 h6 10. Bh4 c6 11. c4 Be7 12. Nbc3 Ng4 13. Bg3 Bh4 14. Qd2 Be6 15. Nf4 Qg5 16. cxd5 Bxd5 17. Ncxd5 cxd5 18. Qa5 Nxf2+ 19. Rxf2 Bxg3 20. Nh3 Qd8 21. Qxd8 Rxd8 22. Rf3 Bh4 23. Rd1 Nc6 24. Bb5 Bf6 25. Bxc6 bxc6 26. Nf2 Re8 27. Ng4 Re6 28. Nxf6+ Rxf6 29. Rc3 Re8 30. Rdc1 Re2 31. Rxc6 Rff2 32. Rd6 Rxg2 33. Rxd5 Rh2+ 34. Kg1 Reg2+ 35. Kf1 Rxa2 36. Rd8+ Kh7 37. Kg1 Rag2+ 38. Kf1 Rg3 39. Rc7 Rxb3 40. Kg1 Ra2 41. Rxf7 Rb1+ 42. Rf1 Rxf1+ 43. Kxf1 Kg6 0-1

[Event "VIE-ch U13"]
[Site "Hanoi"]
[Date "2020.??.??"]
[Round "8"]
[White "Do, An Hoa1111"]
[Black "Bui, Dang Khoa"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1600"]
[BlackElo "2320"]
[PlyCount "99"]
[EventDate "2020.10.22"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 4. e3 Bg7 5. b4 Nbd7 6. Bd3 0-0 7. 0-0 Re8 8. Bb2 c6 9. c4 dxc4 10. Nxc4 Nb6 11. Qd2 Nxc4 12. Bxc4 Ne4 13. Qe2 Bg4 14. h3 Bxf3 15. Qxf3 Nd6 16. Bb3 Qb6 17. Bc3 e6 18. Rab1 Rad8 19. Rfd1 Nb5 20. Be1 Nc7 21. a4 Nd5 22. Bc4 Qc7 23. Rdc1 Nb6 24. b5 Nxc4 25. Rxc4 Rd5 26. Rbc1 Rc8 27. Qe2 e5 28. bxc6 bxc6 29. dxe5 Rxe5 30. Qf3 Re6 31. Bb4 Bf8 32. Bc3 Bg7 33. Bd4 Qd7 34. Bxg7 Kxg7 35. h4 Rf6 36. Qe2 Rd6 37. h5 Rd2 38. Qf3 Rd5 39. Rc5 Rxc5 40. Rxc5 Qd6 41. Rc4 Rb8 42. g3 c5 43. Kg2 Rb1 44. h6+ Kxh6 45. Qxf7 Rb4 46. e4 a5 47. Rc1 Rb2 48. Rh1+ Kg5 49. Rxh7 Qe5 50. Kh3 1-0

[Event "VIE-ch U13"]
[Site "Hanoi"]
[Date "2020.??.??"]
[Round "6"]
[White "Ngo, Nhat Minh"]
[Black "Bui, Dang Khoa"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "2318"]
[BlackElo "2320"]
[PlyCount "132"]
[EventDate "2020.10.22"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 d5 4. exd5 exd5 5. d4 Nc6 6. Bb5 a6 7. Bxc6+ bxc6 8. 0-0 Nf6 9. Bg5 Be7 10. Re1 0-0 11. Ne5 Qc7 12. dxc5 Be6 13. Nd3 Rfd8 14. Na4 Re8 15. Nb6 Rad8 16. Bf4 Qb7 17. b4 Nd7 18. Na4 Bf6 19. Rb1 Qb5 20. Nab2 Bc3 21. Bd2 Bxb2 22. Rxb2 Bf5 23. Be3 Bxd3 24. Qxd3 Qxd3 25. cxd3 d4 26. Bd2 Rxe1+ 27. Bxe1 Rb8 28. Re2 Kf8 29. Re4 Re8 30. Rxe8+ Kxe8 31. f4 Ke7 32. Bf2 Nf6 33. a3 Nd5 34. g3 Nc3 35. Kf1 Nb5 36. a4 Nc3 37. Bxd4 Nd5 38. b5 cxb5 39. axb5 axb5 40. Ke2 f6 41. Kf3 Kd7 42. g4 Kc6 43. h4 b4 44. g5 fxg5 45. hxg5 g6 46. Ke4 Ne7 47. Ke5 Nf5 48. Bb2 Kxc5 49. d4+ Kc6 50. Ke6 Ne3 51. Kf6 Kd5 52. Kg7 Ng2 53. Bc1 b3 54. Kxh7 Nxf4 55. Bb2 Ke6 56. Bc1 Kf5 57. Kh6 Nd3 58. Ba3 b2 59. Bxb2 Nxb2 60. Kg7 Kxg5 61. Kf7 Kf5 62. Ke7 g5 63. Kd6 g4 64. Kc5 g3 65. d5 g2 66. d6 g1Q+ 0-1

[Event "VIE-ch U13"]
[Site "Hanoi"]
[Date "2020.??.??"]
[Round "1"]
[White "Nguy?n, Nghia Gia An"]
[Black "Bui, Dang Khoa"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1546"]
[BlackElo "2320"]
[PlyCount "113"]
[EventDate "2020.10.22"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. Nf3 Nf6 5. d4 Nc6 6. Be3 Bg4 7. Be2 e6 8. Na3 cxd4 9. Nb5 Qd7 10. Nbxd4 Be7 11. 0-0 Nxd4 12. Bxd4 0-0 13. h3 Bf5 14. Qb3 Ne4 15. Rad1 Qc7 16. Be5 Bd6 17. Rxd6 Nxd6 18. Rd1 Rfd8 19. Qa3 f6 20. Bxd6 Qc6 21. Bc5 b6 22. Be3 Rxd1+ 23. Bxd1 e5 24. Qe7 Qd7 25. Bb3+ Kh8 26. Qb4 Rd8 27. Qh4 Qd3 28. Kh2 Qd6 29. Qg3 a5 30. a4 Qc6 31. Nh4 Be4 32. Qg4 Bd3 33. Nf5 Bxf5 34. Qxf5 g6 35. Qe6 Qxe6 36. Bxe6 Rd6 37. Ba2 f5 38. g3 Kg7 39. b4 Kf6 40. bxa5 bxa5 41. c4 g5 42. c5 Rd3 43. c6 Rc3 44. Bd5 f4 45. gxf4 gxf4 46. Bb6 Ke7 47. c7 Kd6 48. Bb7 Rxc7 49. Bxc7+ Kxc7 50. Be4 h6 51. Kg2 Kd6 52. Kf3 Kc5 53. Kg4 Kb4 54. Kf5 Kxa4 55. Kxe5 Kb4 56. Kxf4 Kc5 57. Ke5 1-0

[Event "VIE-ch U13"]
[Site "Hanoi"]
[Date "2020.??.??"]
[Round "3"]
[White "Pham, Anh Kien"]
[Black "Bui, Dang Khoa"]
[Result "1-0"]
[ECO "A38"]
[WhiteElo "1357"]
[BlackElo "2320"]
[PlyCount "127"]
[EventDate "2020.10.22"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nc3 cxd4 4. Qxd4 Nc6 5. Qd1 g6 6. g3 Bg7 7. Bg2 0-0 8. Nf3 d6 9. 0-0 Be6 10. Nd2 Rc8 11. b3 d5 12. Bb2 dxc4 13. Nxc4 Qxd1 14. Rfxd1 Bxc4 15. bxc4 Na5 16. Nd5 Nxd5 17. Bxg7 Kxg7 18. Rxd5 Nxc4 19. Rd7 e6 20. Rxb7 a5 21. e3 Nd6 22. Ra7 Rc5 23. Rd1 Nc8 24. Ra6 Re8 25. Bc6 Re7 26. Bd7 Rc7 27. Bxc8 Rxc8 28. Rxa5 Rc2 29. Rd4 Rb7 30. Rf4 f5 31. a3 Ra2 32. g4 Rb1+ 33. Kg2 Rb3 34. gxf5 exf5 35. Ra7+ Kh6 36. Rh4+ Kg5 37. Kg3 h5 38. Rha4 Rbb2 39. h4+ Kh6 40. Rf4 Rb1 41. a4 Rba1 42. Ra6 Kg7 43. Ra7+ Kh6 44. Kf3 Rf1 45. Kg2 Re1 46. Rd4 Ree2 47. Rdd7 Rxf2+ 48. Kg3 f4+ 49. exf4 Rg2+ 50. Kf3 Rgf2+ 51. Ke3 Rae2+ 52. Kd4 Rd2+ 53. Kc3 Rc2+ 54. Kb4 Rxf4+ 55. Kb3 Rxh4 56. Kxc2 Rh2+ 57. Rd2 Rh1 58. a5 h4 59. a6 h3 60. Ra8 Kg5 61. a7 Ra1 62. Kb2 Ra6 63. Rd3 Kg4 64. Ra3 1-0

[Event "VIE-ch U13"]
[Site "Hanoi"]
[Date "2020.??.??"]
[Round "4"]
[White "Pham, Truong Phu"]
[Black "Bui, Dang Khoa"]
[Result "1/2-1/2"]
[ECO "A57"]
[WhiteElo "2317"]
[BlackElo "2320"]
[PlyCount "140"]
[EventDate "2020.10.22"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "VIE"]
[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 b5 4. Nf3 d6 5. Qc2 g6 6. e4 Bg7 7. cxb5 a6 8. Nc3 0-0 9. Bf4 Bd7 10. a4 axb5 11. Bxb5 Bxb5 12. Nxb5 Na6 13. 0-0 Nb4 14. Qe2 Nd7 15. Rfd1 Nb6 16. Nc3 Ra5 17. e5 Qd7 18. Rd2 Rfa8 19. b3 Rc8 20. Rad1 Qf5 21. Qe4 Qxe4 22. Nxe4 dxe5 23. Bxe5 c4 24. Bxg7 Kxg7 25. bxc4 Rxc4 26. Ng3 N6xd5 27. h3 Nf6 28. Nf1 Rxa4 29. Ne3 Rc7 30. Rd4 Rca7 31. Ne5 Na2 32. Kh2 Rxd4 33. Rxd4 Nc3 34. g4 e6 35. Kg2 Nfd5 36. N3c4 Ne2 37. Re4 Nec3 38. Rd4 f6 39. Nc6 Ra4 40. Ne3 Rxd4 41. Nxd4 Nxe3+ 42. fxe3 Kf7 43. Kf3 e5 44. Nb3 Ke6 45. Nc5+ Kd5 46. Nd7 e4+ 47. Kf2 Ke6 48. Nc5+ Kd6 49. Nb3 Kd5 50. Nd4 Kc4 51. Ne6 Kd3 52. Nc5+ Kd2 53. Nb3+ Kd3 54. Nc5+ Kc4 55. Ne6 Nd5 56. Ke2 Ne7 57. g5 fxg5 58. Nxg5 Kd5 59. Nxh7 Ke5 60. Kf2 Kf5 61. Nf8 Nc6 62. Nd7 Nd8 63. Nb6 Nf7 64. Nc4 Ng5 65. Kg3 Nf7 66. h4 Nd8 67. Nd6+ Ke5 68. Nc4+ Kf5 69. Nd6+ Ke5 70. Nc4+ Kf5 1/2-1/2

[Event "VIE-chT"]
[Site "Ho Chi Minh City"]
[Date "2019.10.02"]
[Round "9.28"]
[White "Bui, Dang Khoa"]
[Black "Pham, Tran Gia Phuc"]
[Result "1-0"]
[ECO "E64"]
[WhiteElo "1903"]
[BlackElo "1645"]
[PlyCount "103"]
[EventDate "2019.09.26"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 c5 7. d5 Na6 8. Nc3 Nc7 9. Bf4 Bd7 10. a4 b6 11. e4 Nh5 12. Bd2 a6 13. b3 b5 14. axb5 axb5 15. Rxa8 Qxa8 16. e5 Bf5 17. cxb5 Qb7 18. h3 Bd3 19. Re1 c4 20. g4 Nxb5 21. Nxb5 Qxb5 22. bxc4 Bxc4 23. gxh5 dxe5 24. h6 Bf6 25. Nxe5 Bxd5 26. Bxd5 Qxd5 27. Bf4 Qxd1 28. Rxd1 Bxe5 29. Bxe5 f6 30. Bc7 Kf7 31. Kg2 Rc8 32. Ba5 Rc5 33. Bb4 Re5 34. Rd8 g5 35. Rh8 Kg6 36. Rg8+ Kxh6 37. Re8 e6 38. Bc3 Rf5 39. Rxe6 Kg6 40. Kg3 h5 41. f3 h4+ 42. Kf2 Rf4 43. Ke3 Rf5 44. Bd4 Rf4 45. Re4 Rf5 46. f4 Kh5 47. Kf3 gxf4 48. Rxf4 Rd5 49. Bxf6 Rd3+ 50. Kg2 Rd2+ 51. Rf2 Rd3 52. Re2 1-0

[Event "VIE-chT"]
[Site "Ho Chi Minh City"]
[Date "2019.10.01"]
[Round "8.22"]
[White "Nguyen, Tuan Loc"]
[Black "Bui, Dang Khoa"]
[Result "1-0"]
[ECO "D78"]
[WhiteElo "2208"]
[BlackElo "1903"]
[PlyCount "111"]
[EventDate "2019.09.26"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. g3 c6 4. Bg2 Bg7 5. Nc3 d5 6. d4 0-0 7. 0-0 Re8 8. Ne5 dxc4 9. Nxc4 Be6 10. b3 Nd5 11. Bb2 Na6 12. Qd2 Nac7 13. Ne4 Nf6 14. Nc5 Bxc4 15. bxc4 Rb8 16. Rfd1 Nd7 17. Nb3 Nb6 18. Rac1 e6 19. e4 Qe7 20. Qa5 Na6 21. Ba3 Qc7 22. d5 Rbd8 23. c5 Nxd5 24. exd5 exd5 25. Qxc7 Nxc7 26. Na5 Nb5 27. Bb4 Re7 28. Nb3 Rde8 29. a4 Nc7 30. Bf3 Ne6 31. h4 Nf8 32. Bc3 Nd7 33. Bxg7 Kxg7 34. Kf1 Ne5 35. Be2 Nd7 36. Nd4 Nf6 37. Bf3 Nd7 38. Rc2 Ne5 39. Be2 Nd7 40. Rb1 Re4 41. Rxb7 Rxd4 42. Rxd7 Rxa4 43. h5 a5 44. h6+ Kf6 45. Rc7 Re6 46. Rb2 Kg5 47. Rxf7 Kxh6 48. f4 Ra1+ 49. Kf2 g5 50. f5 Re5 51. Rbb7 g4 52. Rxh7+ Kg5 53. Rbg7+ Kxf5 54. Bd3+ Re4 55. Bxe4+ Kxe4 56. Rxg4+ 1-0

[Event "VIE-chT"]
[Site "Ho Chi Minh City"]
[Date "2019.09.30"]
[Round "7.29"]
[White "Bui, Dang Khoa"]
[Black "Nguyen, Anh Dung1111"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "1903"]
[BlackElo "1589"]
[PlyCount "113"]
[EventDate "2019.09.26"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 c6 7. Nc3 Bg4 8. b3 Nbd7 9. Bb2 Rc8 10. Qd3 a6 11. Rad1 b5 12. Ba3 Qa5 13. Bb2 b4 14. Na4 Qh5 15. c5 a5 16. cxd6 exd6 17. e4 Rfe8 18. Rfe1 d5 19. e5 Ne4 20. Rc1 Bh6 21. Ra1 Qf5 22. Rf1 g5 23. Ne1 Nc3 24. Qxf5 Ne2+ 25. Kh1 Bxf5 26. Bf3 Nc3 27. Nxc3 bxc3 28. Bxc3 g4 29. Bg2 c5 30. f4 gxf3 31. Nxf3 c4 32. bxc4 dxc4 33. Nd2 Bd3 34. Rfc1 Nb6 35. a4 f6 36. Re1 fxe5 37. dxe5 Nd7 38. Bd5+ Kf8 39. e6 Nb6 40. Bg2 Rc5 41. Ne4 Rc6 42. Nf6 Rexe6 43. Bxc6 Rxc6 44. Ng4 Bg5 45. Ne5 Rc5 46. Bd4 Rxe5 47. Rxe5 Bf6 48. Rf1 Nd7 49. Rxf6+ Nxf6 50. Rxa5 Ne4 51. Rd5 Nxg3+ 52. Kg1 Ne2+ 53. Kf2 Nf4 54. Rd6 Ke7 55. Bc5 Kf7 56. a5 c3 57. Be3 1-0

[Event "VIE-chT"]
[Site "Ho Chi Minh City"]
[Date "2019.09.29"]
[Round "6.24"]
[White "Luong, Duy Loc"]
[Black "Bui, Dang Khoa"]
[Result "1-0"]
[ECO "D72"]
[WhiteElo "1767"]
[BlackElo "1903"]
[PlyCount "55"]
[EventDate "2019.09.26"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. cxd5 Nxd5 6. e4 Nb6 7. Ne2 0-0 8. 0-0 c6 9. Nbc3 Na6 10. a4 Be6 11. a5 Nc4 12. d5 cxd5 13. exd5 Bg4 14. Qb3 Bxe2 15. Nxe2 Nd6 16. Bf4 Nc5 17. Qa3 Rc8 18. Rac1 b6 19. b4 Ncb7 20. a6 Nc4 21. Rxc4 Rxc4 22. axb7 Rxf4 23. Nxf4 Qb8 24. d6 exd6 25. Rc1 g5 26. Nh5 Be5 27. Qa6 Rd8 28. Rc8 1-0

[Event "VIE-chT"]
[Site "Ho Chi Minh City"]
[Date "2019.09.29"]
[Round "5.16"]
[White "Nguyen, Van Toan Thanh"]
[Black "Bui, Dang Khoa"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2015"]
[BlackElo "1903"]
[PlyCount "72"]
[EventDate "2019.09.26"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 d6 2. c3 Nf6 3. Bd3 g6 4. Bc2 c5 5. Nf3 Bg7 6. 0-0 0-0 7. d3 Nc6 8. Nbd2 e5 9. Re1 Be6 10. Nf1 d5 11. exd5 Nxd5 12. Ng5 Bf5 13. Ng3 Nf4 14. N5e4 Ne6 15. Bb3 b6 16. Qf3 Bxe4 17. Nxe4 Qd7 18. Nf6+ Bxf6 19. Qxf6 Rfe8 20. Bh6 Qd8 21. Qf3 Qd6 22. Ba4 Ned8 23. Bg5 Rc8 24. Re3 Ne6 25. Bf6 Ng7 26. g4 Re6 27. Bh4 f5 28. Bb3 Rce8 29. Bg5 Kh8 30. Bxe6 Rxe6 31. h3 f4 32. Re2 Ne8 33. Rae1 Qf8 34. Bxf4 Rf6 35. Qg2 Rxf4 36. Qxc6 Ng7 1-0

[Event "VIE-chT"]
[Site "Ho Chi Minh City"]
[Date "2019.09.28"]
[Round "4.25"]
[White "Bui, Dang Khoa"]
[Black "Phan, Luong"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "1903"]
[BlackElo "1793"]
[PlyCount "82"]
[EventDate "2019.09.26"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 d6 5. Bg2 0-0 6. 0-0 c6 7. Nc3 Qc7 8. e4 e5 9. d5 c5 10. Be3 Nh5 11. Nh4 Qd8 12. a3 Bd7 13. b4 b6 14. Ra2 Qc8 15. Qd3 f5 16. Bg5 Qe8 17. Bh3 f4 18. Bxd7 Qxd7 19. f3 fxg3 20. hxg3 Nxg3 21. Rff2 Na6 22. b5 Nc7 23. Kh2 Nh5 24. Ne2 Bf6 25. Bxf6 Rxf6 26. Ra1 Raf8 27. Raf1 Ne8 28. Qe3 Neg7 29. Ng2 Qf7 30. f4 Nxf4 31. Nexf4 exf4 32. Rxf4 Qe7 33. Rxf6 Rxf6 34. Qg5 Rf7 35. Qxe7 Rxe7 36. Re1 Nf5 37. exf5 Rxe1 38. Nxe1 gxf5 39. Kg3 Kf7 40. Kf4 Kf6 41. Nf3 h6 1-0

[Event "VIE-chT"]
[Site "Ho Chi Minh City"]
[Date "2019.09.27"]
[Round "3.34"]
[White "Bui, Dang Khoa"]
[Black "Le, Nhat Minh"]
[Result "1-0"]
[ECO "E05"]
[WhiteElo "1903"]
[BlackElo "1902"]
[PlyCount "77"]
[EventDate "2019.09.26"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 0-0 6. 0-0 dxc4 7. Ne5 Nbd7 8. Nxc4 Nb6 9. Nxb6 cxb6 10. Nc3 Rb8 11. Bf4 Bd6 12. Bxd6 Qxd6 13. e4 Qe7 14. Qa4 a6 15. Rad1 Bd7 16. Qb3 b5 17. e5 Ne8 18. d5 exd5 19. Nxd5 Qe6 20. Qb4 f6 21. Nf4 Qf7 22. Bd5 Qxd5 23. Rxd5 Bc6 24. Ne6 Rf7 25. Rd8 Rxd8 26. Nxd8 Rd7 27. Nxc6 bxc6 28. e6 Rd8 29. e7 Rc8 30. Qb3+ Kh8 31. Qf7 Nc7 32. Re1 h6 33. Qf8+ Rxf8 34. exf8Q+ Kh7 35. Re7 Ne6 36. Qxf6 Kh8 37. Qxe6 c5 38. Qg6 b4 39. Qxg7# 1-0

[Event "VIE-chT"]
[Site "Ho Chi Minh City"]
[Date "2019.09.27"]
[Round "2.32"]
[White "Bui, Nhat Tan"]
[Black "Bui, Dang Khoa"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "1662"]
[BlackElo "1903"]
[PlyCount "141"]
[EventDate "2019.09.26"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. a4 c5 8. Bb5+ Bd7 9. Nf3 0-0 10. Bxd7 Qxd7 11. 0-0 Nc6 12. Be3 Rfd8 13. e5 Qe6 14. Qb1 b6 15. Qb5 cxd4 16. cxd4 Rd5 17. Qc4 Na5 18. Qc7 Rd7 19. Qc3 Nc4 20. Bf4 Rc8 21. Rac1 Rdc7 22. Ng5 Qf5 23. Qf3 Rc6 24. Rfe1 h6 25. g4 Qd7 26. d5 Rc5 27. Nxf7 Qxd5 28. Nxh6+ Bxh6 29. Qxd5+ Rxd5 30. Bxh6 Rcc5 31. e6 g5 32. h4 gxh4 33. Kg2 Rd3 34. Rh1 Rd6 35. Rxh4 Rxe6 36. Bf4 Re4 37. Kf3 Rd4 38. a5 e5 39. Bh6 e4+ 40. Kg2 Rxa5 41. Rch1 Kf7 42. Bf4 Ne5 43. Rh7+ Kf6 44. R1h6+ Ng6 45. g5+ Rxg5+ 46. Bxg5+ Kxg5 47. Kg3 Rd3+ 48. Kh2 Rf3 49. Kg1 a5 50. Rh5+ Kg4 51. Rb5 Rf6 52. Rb7 Nf4 53. Rg7+ Kf3 54. Rg3+ Ke2 55. Re5 Kd2 56. Re3 Rg6+ 57. Kf1 Rh6 58. Kg1 Nh3+ 59. Kg2 Nxf2 60. Rb3 Nd3 61. Rxe4 Rg6+ 62. Kf3 Rf6+ 63. Kg3 Nc5 64. Rd4+ Kc2 65. Rb5 Kc3 66. Rd1 Kc4 67. Rdb1 Ne4+ 68. Kg4 Rg6+ 69. Kh5 Nc3 70. Rxb6 Rxb6 71. Rxb6 1/2-1/2

[Event "VIE-chT"]
[Site "Ho Chi Minh City"]
[Date "2019.09.26"]
[Round "1.33"]
[White "Bui, Dang Khoa"]
[Black "Le, Minh Tu"]
[Result "0-1"]
[ECO "A12"]
[WhiteElo "1903"]
[BlackElo "1954"]
[PlyCount "106"]
[EventDate "2019.09.26"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 Bf5 5. Bg2 e6 6. 0-0 Be7 7. Nc3 h6 8. Re1 0-0 9. b3 Nbd7 10. Bb2 Ne4 11. Nxe4 Bxe4 12. Qd2 b5 13. c5 Bf6 14. b4 a5 15. a3 Qc7 16. Bc3 a4 17. Qb2 Rad8 18. Rad1 Rfe8 19. e3 e5 20. Nxe5 Nxe5 21. dxe5 Bxe5 22. Bxe4 Bxc3 23. Qxc3 Rxe4 24. Rd4 Rde8 25. f3 R4e6 26. Qd3 Qe7 27. Kf2 Qg5 28. h4 Qe5 29. e4 f5 30. Kg2 Rg6 31. f4 Qxf4 32. Rf1 fxe4 33. Rxf4 exd3 34. Rxd3 Rf6 35. Kf3 Kf7 36. g4 g5 37. hxg5 hxg5 38. Rxf6+ Kxf6 39. Rd1 Re6 40. Rh1 d4 41. Rh6+ Ke5 42. Rxe6+ Kxe6 43. Ke4 d3 44. Kxd3 Kd5 45. Ke3 Kc4 46. Ke4 Kb3 47. Ke5 Kxa3 48. Kd6 Kxb4 49. Kxc6 a3 50. Kb6 a2 51. c6 a1Q 52. c7 Qd4+ 53. Kb7 Qxg4 0-1

[Event "VIE-ch U11"]
[Site "Hai Phong"]
[Date "2018.07.12"]
[Round "8"]
[White "Bui, Dang Khoa"]
[Black "Nguyen, Duc Gia Bach1111"]
[Result "0-1"]
[ECO "C66"]
[WhiteElo "1914"]
[BlackElo "1870"]
[PlyCount "62"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 d6 5. 0-0 Be7 6. d4 exd4 7. Nxd4 Bd7 8. Bxc6 bxc6 9. Re1 0-0 10. Be3 c5 11. Nde2 Bc6 12. f3 Qb8 13. Qd2 Qxb2 14. Reb1 Qa3 15. Nb5 Bxb5 16. Rxb5 Rfb8 17. Ra5 Qb2 18. Rc1 Rb7 19. Nc3 Qb6 20. Ra4 Rab8 21. Qd3 Qc6 22. Ra6 Qd7 23. Rd1 h6 24. Bxc5 Ra8 25. Nd5 Nxd5 26. Qxd5 Qb5 27. Ra3 dxc5 28. Rb3 Qe2 29. Rf1 Rab8 30. Rf2 Qa6 31. f4 Rd8 0-1

[Event "VIE-ch U11"]
[Site "Hai Phong"]
[Date "2018.07.11"]
[Round "7"]
[White "Le, Phi Lan"]
[Black "Bui, Dang Khoa"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "1878"]
[BlackElo "1914"]
[PlyCount "87"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. cxd5 cxd5 5. Bf4 Bf5 6. Qb3 Qd7 7. Bxb8 Rxb8 8. e4 Qe6 9. Bb5+ Kd8 10. e5 g6 11. Nge2 Ne4 12. Nf4 Qb6 13. Qxd5+ Kc7 14. Nxe4 Rd8 15. Qc5+ Qxc5 16. Nxc5 Rxd4 17. Ne2 Rd5 18. b4 Rxe5 19. f4 Re3 20. Kf2 Ra3 21. Nb3 Bg7 22. Rac1+ Kb8 23. Bc4 e6 24. Nbd4 Ra4 25. Nxf5 gxf5 26. Rb1 Bf8 27. Rhd1 Bxb4 28. Bb3 Bc5+ 29. Kf1 Re4 30. Rd7 Rf8 31. Bc2 Rb4 32. Rxb4 Bxb4 33. Ng1 Kc8 34. Rd3 Be7 35. Rh3 Rh8 36. Nf3 Bf6 37. Rh6 Bg7 38. Rh5 b6 39. h3 Kd7 40. g4 fxg4 41. hxg4 Rc8 42. Bb3 Rc3 43. Kg2 Ke7 44. g5 1-0

[Event "VIE-ch U11"]
[Site "Hai Phong"]
[Date "2018.07.10"]
[Round "6"]
[White "Bui, Dang Khoa"]
[Black "An, Dinh Minh"]
[Result "1/2-1/2"]
[ECO "B26"]
[WhiteElo "1914"]
[BlackElo "1909"]
[PlyCount "74"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nc6 4. d3 g6 5. Bg2 Bg7 6. Be3 e6 7. Nge2 Nd4 8. 0-0 Ne7 9. Qd2 0-0 10. Bxd4 cxd4 11. Nb5 Nc6 12. Na3 Rb8 13. c4 dxc3 14. bxc3 b5 15. Rab1 Ba6 16. Nc2 Qc7 17. d4 b4 18. Nxb4 Nxb4 19. cxb4 Bxe2 20. Qxe2 Bxd4 21. Rfd1 e5 22. Rdc1 Qd7 23. Rc4 f5 24. Rc2 f4 25. Kh1 fxg3 26. fxg3 Rb7 27. Qc4+ Kg7 28. Qc6 Qe7 29. b5 Kh6 30. a4 Rb6 31. Qc7 Qe6 32. Qc4 Qxc4 33. Rxc4 Rfb8 34. Rbc1 a6 35. bxa6 Rxa6 36. Bh3 Rb2 37. Bd7 Re2 1/2-1/2

[Event "VIE-ch U11"]
[Site "Hai Phong"]
[Date "2018.07.09"]
[Round "4"]
[White "Bui, Dang Khoa"]
[Black "Pham, Phuc Khoi Nguyen"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "1914"]
[BlackElo "1878"]
[PlyCount "88"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Bc5 6. 0-0 Nf6 7. Bd5 Nxd5 8. exd5 Ne7 9. Nxe5 0-0 10. d4 Bd6 11. Nc3 Bb7 12. Re1 Nxd5 13. Nxd5 Bxd5 14. b3 f6 15. Nd3 Re8 16. Be3 f5 17. Qd2 h6 18. Bf4 Qf6 19. Be5 Bxe5 20. dxe5 Qf7 21. Nf4 Bc6 22. Rad1 Rac8 23. Kf1 Qe7 24. Nd5 Qh4 25. Qf4 Qxf4 26. Nxf4 g5 27. Nd5 Kf7 28. Nb4 Re7 29. Nxa6 Bb7 30. Nc5 Bc6 31. f3 Rce8 32. Kf2 Ra8 33. Ra1 Rae8 34. Nd3 d6 35. exd6 Rxe1 36. Rxe1 Rxe1 37. Kxe1 cxd6 38. Nb4 Bd7 39. Ke2 Ke6 40. Ke3 f4+ 41. Kd4 h5 42. Nd3 Bc6 43. h4 Kf6 44. hxg5+ Kxg5 1-0

[Event "VIE-ch U11"]
[Site "Hai Phong"]
[Date "2018.07.09"]
[Round "5"]
[White "Nguyen, Duc Duy"]
[Black "Bui, Dang Khoa"]
[Result "1/2-1/2"]
[ECO "A52"]
[WhiteElo "1868"]
[BlackElo "1914"]
[PlyCount "74"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 Nc6 5. Nf3 Bb4+ 6. Nbd2 Qe7 7. a3 Ngxe5 8. Nxe5 Nxe5 9. e3 Bxd2+ 10. Qxd2 d6 11. Be2 0-0 12. 0-0 Be6 13. Rac1 Rad8 14. Qc3 Ng6 15. Bg3 Bf5 16. Rfd1 Be4 17. b4 h6 18. Bd3 Rfe8 19. Bxe4 Qxe4 20. Rd4 Qe6 21. Rcd1 Ne7 22. R4d2 Nf5 23. c5 Nxg3 24. hxg3 d5 25. Rd4 c6 26. a4 Qf6 27. Qd3 Qe7 28. Qd2 Ra8 29. Qc3 Qf6 30. Rb1 Re4 31. Qd3 Rae8 32. Rd1 Rxd4 33. Qxd4 Qxd4 34. Rxd4 a6 35. Kf1 f5 36. Ke2 Kf7 37. Kd3 Kf6 1/2-1/2

[Event "VIE-ch U11"]
[Site "Hai Phong"]
[Date "2018.07.08"]
[Round "3"]
[White "Nguyen, Thanh Liem"]
[Black "Bui, Dang Khoa"]
[Result "1/2-1/2"]
[ECO "B56"]
[WhiteElo "1874"]
[BlackElo "1914"]
[PlyCount "41"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bb5 Bd7 7. Bxc6 Bxc6 8. Nxc6 bxc6 9. 0-0 g6 10. Be3 Bg7 11. f4 0-0 12. Qf3 Qc7 13. Rad1 Rab8 14. b3 Rfd8 15. e5 dxe5 16. fxe5 Qxe5 17. Bxa7 Rxd1 18. Rxd1 Rc8 19. Bd4 Qe6 20. Qe3 Qxe3+ 21. Bxe3 1/2-1/2

[Event "VIE-ch U11"]
[Site "Hai Phong"]
[Date "2018.07.07"]
[Round "2"]
[White "Bui, Dang Khoa"]
[Black "Bach, The Vinh"]
[Result "1/2-1/2"]
[ECO "B26"]
[WhiteElo "1914"]
[BlackElo "1872"]
[PlyCount "89"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 d6 4. d3 g6 5. Be3 Bg7 6. Bg2 Nf6 7. Nge2 0-0 8. 0-0 a6 9. h3 Qc7 10. Qd2 Rd8 11. Rad1 Be6 12. Nf4 Rac8 13. a3 b5 14. Nxe6 fxe6 15. f4 Rf8 16. Ne2 e5 17. f5 Nd4 18. c3 Nb3 19. Qc2 c4 20. d4 Nd7 21. Nc1 exd4 22. cxd4 Nxc1 23. Qxc1 c3 24. Rd3 cxb2 25. Qxb2 Qc2 26. Qb3+ Qxb3 27. Rxb3 Rc2 28. Rd3 Rfc8 29. Rf2 R8c3 30. Rfd2 Rxd3 31. Rxd3 Rc4 32. fxg6 hxg6 33. e5 Rc2 34. exd6 exd6 35. Bf4 Bf8 36. Be4 Kg7 37. Rf3 Rc4 38. Rd3 Nf6 39. Bf3 d5 40. Be5 Kf7 41. Bxf6 Kxf6 42. Bxd5 Rxd4 43. Rxd4 Bc5 44. Bb7 Bxd4+ 45. Kg2 1/2-1/2

[Event "VIE-ch U11"]
[Site "Hai Phong"]
[Date "2018.07.07"]
[Round "1"]
[White "Le, Khac Hoang Tuan"]
[Black "Bui, Dang Khoa"]
[Result "1/2-1/2"]
[ECO "B34"]
[WhiteElo "1887"]
[BlackElo "1914"]
[PlyCount "66"]
[EventDate "2018.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "VIE"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nb3 g6 7. Bd3 Bg7 8. Be3 0-0 9. 0-0 a6 10. Re1 b5 11. a3 Bb7 12. f3 Rc8 13. Na2 Qc7 14. Nb4 Rfd8 15. Nxc6 Bxc6 16. Bf1 Bb7 17. c3 Nd7 18. Qd2 Nc5 19. Nxc5 dxc5 20. Qc2 Rd7 21. Red1 Rcd8 22. Rxd7 Rxd7 23. Rd1 c4 24. Rxd7 Qxd7 25. Qd2 Qxd2 26. Bxd2 Kf8 27. Kf2 Ke8 28. Be3 Kd7 29. Ke2 Bf6 30. Kd2 Bg7 31. g3 Bf6 32. Bd4 Ke6 33. Bh3+ Kd6 1/2-1/2

