[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.08.02"]
[Round "11"]
[White "Long, Boyi"]
[Black "Liu, Zimin"]
[Result "0-1"]
[ECO "A18"]
[BlackElo "1548"]
[PlyCount "44"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. cxd5 exd5 5. e5 Ne4 6. Nxe4 dxe4 7. Qa4+ Nc6 8. Qxe4 Bc5 9. Bc4 Nd4 10. g4 h5 11. Nf3 hxg4 12. Nxd4 Qxd4 13. Qxd4 Bxd4 14. 0-0 Rh5 15. d3 Bxe5 16. Re1 Kf8 17. Bd2 Bxh2+ 18. Kg2 Bd6 19. Rh1 Rxh1 20. Rxh1 Kg8 21. Bd5 c6 22. Bb3 Bf5 0-1

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.08.01"]
[Round "9"]
[White "Long, Boyi"]
[Black "Wu, Ziyang"]
[Result "1-0"]
[ECO "A60"]
[BlackElo "1654"]
[PlyCount "41"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 Nf6 3. e4 d6 4. d4 c5 5. d5 e5 6. Bd3 g6 7. Nge2 Bg7 8. 0-0 0-0 9. Bg5 h6 10. Bd2 Ne8 11. Qc1 Kh7 12. f4 f5 13. Qc2 fxe4 14. Bxe4 Bf5 15. Bxf5 Rxf5 16. g4 Rf8 17. f5 Qh4 18. fxg6+ Kh8 19. Rxf8+ Bxf8 20. Qf5 Nf6 21. g5 1-0

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.08.01"]
[Round "10"]
[White "Zhang, Haoxu"]
[Black "Long, Boyi"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "1795"]
[PlyCount "51"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. c4 c6 5. Nc3 e6 6. Be2 Bd6 7. Nh4 Bg6 8. 0-0 0-0 9. Nxg6 fxg6 10. f4 Nbd7 11. c5 Bc7 12. g4 h6 13. Bd3 g5 14. Bd2 Ba5 15. Nb1 Ne4 16. Bxe4 dxe4 17. Qb3 Nf6 18. Qxe6+ Kh8 19. fxg5 hxg5 20. Qf5 Bxd2 21. Nxd2 Qd5 22. h3 Rad8 23. Qg6 Qe6 24. Qxg5 Rd5 25. Qh4+ Kg8 26. Rf2 1-0

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.31"]
[Round "8"]
[White "Hu, Zehan"]
[Black "Long, Boyi"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1626"]
[PlyCount "46"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ Qxf6 6. Nf3 h6 7. Be3 Bd6 8. c3 Bd7 9. Qb3 Bc6 10. Bb5 Bxb5 11. Qxb5+ Nd7 12. Qxb7 Rb8 13. Qc6 Rxb2 14. 0-0 Ke7 15. Rfe1 Rhb8 16. d5 Ne5 17. Nxe5 Qxe5 18. g3 Qf5 19. Bxa7 R8b7 20. Bd4 Kf8 21. dxe6 fxe6 22. Qd7 Qf7 23. Qd8+ Qe8 1-0

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.30"]
[Round "6"]
[White "Long, Boyi"]
[Black "Li, Jiahong"]
[Result "0-1"]
[ECO "B07"]
[BlackElo "1715"]
[PlyCount "61"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 g6 3. Nd2 Bg7 4. e4 h6 5. Bh4 0-0 6. Ngf3 d6 7. Bd3 Nbd7 8. c3 e5 9. 0-0 Re8 10. Qc2 b6 11. Rad1 exd4 12. Nxd4 Bb7 13. Rde1 a6 14. f4 Nc5 15. e5 Nxd3 16. Qxd3 dxe5 17. fxe5 Qd5 18. N2f3 Ng4 19. e6 f5 20. c4 Qc5 21. b4 Qxb4 22. h3 Nf6 23. Ne5 Be4 24. Rxe4 Nxe4 25. Nxf5 gxf5 26. Rxf5 Nd6 27. Nc6 Qxc4 28. Qxc4 Nxc4 29. e7 Nd6 30. Rf3 a5 31. a4 0-1

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.30"]
[Round "5"]
[White "Wu, Tong"]
[Black "Long, Boyi"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1265"]
[PlyCount "51"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 4. c4 e6 5. Qb3 b6 6. Nc3 Bd6 7. Bg3 0-0 8. Nb5 Bxg3 9. hxg3 c5 10. Nf3 Nc6 11. Rc1 Na5 12. Qd1 dxc4 13. Ne5 a6 14. Nc3 cxd4 15. exd4 b5 16. g4 Bg6 17. Nxg6 fxg6 18. Be2 Ra7 19. g5 Nd5 20. Qd2 Nf4 21. g3 Nxe2 22. Nxe2 Nc6 23. 0-0 Rd7 24. Rfd1 Ne5 25. Qe3 Nf3+ 26. Kg2 0-1

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.29"]
[Round "3"]
[White "Chen, Shen"]
[Black "Long, Boyi"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "54"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 4. Nd2 e6 5. Ngf3 Bd6 6. Bg3 0-0 7. c3 Qe7 8. Qb3 b6 9. a4 c5 10. Be2 Nc6 11. Nh4 Bg4 12. Bxg4 Nxg4 13. Nhf3 Rac8 14. h3 Nh6 15. Bxd6 Qxd6 16. Qc2 e5 17. dxe5 Nxe5 18. Nxe5 Qxe5 19. Nf3 Qf6 20. 0-0 d4 21. exd4 cxd4 22. Nxd4 Qxd4 23. Qxh7+ Kxh7 24. cxd4 Rfd8 25. Rfd1 Rc4 26. d5 Rc5 27. d6 Rc6 0-1

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.29"]
[Round "4"]
[White "Long, Boyi"]
[Black "Lin, Junyi"]
[Result "0-1"]
[ECO "E92"]
[BlackElo "1710"]
[PlyCount "44"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 d6 5. e4 0-0 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Nxe5 Nxe4 10. Nxe4 Bxe5 11. 0-0 Nc6 12. Bg5 Re8 13. Bf6 Bxh2+ 14. Kxh2 Rxe4 15. Bd3 Re6 16. Bc3 Ne5 17. Bc2 Nxc4 18. Bb3 Rc6 19. Ba4 Rc5 20. Rad1 Be6 21. Rd4 Nd6 22. Rfd1 Rc4 0-1

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.28"]
[Round "1"]
[White "Long, Boyi"]
[Black "Su, Yijia"]
[Result "0-1"]
[ECO "A40"]
[BlackElo "1849"]
[PlyCount "84"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. Nf3 b5 2. d4 Bb7 3. Bf4 d6 4. e3 a6 5. c4 c6 6. Nbd2 Nf6 7. Be2 g6 8. 0-0 Bg7 9. cxb5 axb5 10. a4 bxa4 11. Rxa4 Nbd7 12. Nc4 0-0 13. b4 Nd5 14. Rxa8 Qxa8 15. Qd2 N7f6 16. Bg3 Ne4 17. Qb2 Nec3 18. Bd3 Qa2 19. Qc1 Ba6 20. Nfd2 Nb5 21. Nb2 Nxb4 22. Bc4 Qa3 23. Bb3 Nxd4 24. exd4 Bxf1 25. Kxf1 Bxd4 26. Nd3 Qa6 27. Bc4 Nxd3 28. Qb1 Qa3 29. Qxd3 Qa1+ 30. Ke2 d5 31. Ba6 Ra8 32. Bb7 Ra3 33. Qc2 Ra2 34. Qxc6 e5 35. Qe8+ Kg7 36. Bxd5 Rxd2+ 37. Kxd2 Qa5+ 38. Ke2 Qxd5 39. Qb8 Qc4+ 40. Kf3 Qd3+ 41. Kg4 Qf5+ 42. Kh4 Qh5# 0-1

[Event "CHN-ch U20"]
[Site "Shenzhen"]
[Date "2023.07.28"]
[Round "2"]
[White "Zhong, Langqi"]
[Black "Long, Boyi"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1661"]
[PlyCount "71"]
[EventDate "2023.07.28"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 4. c4 e6 5. Nc3 c6 6. Qb3 Qc8 7. Nf3 Nbd7 8. h3 Be7 9. cxd5 exd5 10. Rc1 a6 11. Ne5 0-0 12. g4 Be6 13. Bd3 Nxe5 14. Bxe5 Nd7 15. Qc2 g6 16. Bg3 Qd8 17. f4 Bh4 18. Kf2 Bxg3+ 19. Kxg3 f5 20. h4 Nf6 21. g5 Ne4+ 22. Nxe4 fxe4 23. Be2 Bf5 24. h5 Kg7 25. Rh2 Rg8 26. hxg6 hxg6 27. Rch1 Kf7 28. Bg4 Bxg4 29. Kxg4 Qd7+ 30. Kg3 Rg7 31. Rh7 Rag8 32. R1h4 Qe8 33. b4 Rxh7 34. Rxh7+ Rg7 35. Qh2 Qg8 36. Rh8 1-0

