[Event "Daqing Boyi Cup-B"]
[Site "Daqing"]
[Date "2024.07.17"]
[Round "9"]
[White "Zheng, Yifeng"]
[Black "Zhu, Zimo"]
[Result "0-1"]
[ECO "B02"]
[BlackElo "1692"]
[PlyCount "74"]
[EventDate "2024.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHN"]
[SourceTitle "CBM 221 Extra"]
[Source "ChessBase"]
[SourceDate "2024.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2024.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nf6 3. Nc3 d5 4. exd5 Nxd5 5. Bc4 e6 6. 0-0 Be7 7. d3 0-0 8. Re1 Nc6 9. Bd2 a6 10. a4 Ndb4 11. Na2 Bf6 12. Nxb4 cxb4 13. Qc1 h6 14. c3 a5 15. Bb5 bxc3 16. Bxc3 Nb4 17. Bxb4 axb4 18. Qd2 Be7 19. Rad1 Bd7 20. Bxd7 Qxd7 21. b3 Qd5 22. Qa2 Bf6 23. Re4 Bc3 24. Rc4 b5 25. Re4 bxa4 26. Rc4 axb3 27. Qxb3 Ra3 28. Qc2 Rfa8 29. Rb1 Ra1 30. Rc8+ Rxc8 31. Rxa1 b3 32. Qb1 Bxa1 33. Qxa1 Qxd3 34. Ne5 Qc3 35. Qxc3 Rxc3 36. Nf3 Rc1+ 37. Ne1 Rxe1# 0-1

[Event "Daqing Boyi Cup-B"]
[Site "Daqing"]
[Date "2024.07.15"]
[Round "6"]
[White "Dang, Letian"]
[Black "Zheng, Yifeng"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1560"]
[PlyCount "47"]
[EventDate "2024.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHN"]
[SourceTitle "CBM 221 Extra"]
[Source "ChessBase"]
[SourceDate "2024.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2024.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 e6 4. Nf3 Bd6 5. Bg3 c6 6. c4 Bxg3 7. hxg3 Qd6 8. c5 Qc7 9. Nc3 Nbd7 10. Bd3 e5 11. Bf5 e4 12. Bxd7+ Bxd7 13. Ne5 Be6 14. f4 0-0-0 15. b4 Nd7 16. Nxd7 Qxd7 17. a4 g5 18. b5 gxf4 19. gxf4 Rhg8 20. Kf2 Rg7 21. bxc6 Qxc6 22. Nb5 Rdg8 23. Rg1 Bg4 24. Qb3 1-0

[Event "Daqing Boyi Cup-B"]
[Site "Daqing"]
[Date "2024.07.15"]
[Round "5"]
[White "Lv, Yansong"]
[Black "Zheng, Yifeng"]
[Result "1/2-1/2"]
[ECO "E49"]
[WhiteElo "1558"]
[PlyCount "69"]
[EventDate "2024.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHN"]
[SourceTitle "CBM 221 Extra"]
[Source "ChessBase"]
[SourceDate "2024.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2024.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. e3 Nc6 8. Bd3 0-0 9. Ne2 b6 10. 0-0 Ba6 11. cxd5 Bxd3 12. Qxd3 exd5 13. e4 Re8 14. e5 Nd7 15. f4 f6 16. Bd2 Nf8 17. Rf3 fxe5 18. fxe5 Ng6 19. Bf4 Rc8 20. Raf1 cxd4 21. cxd4 Rf8 22. Bg3 Qe7 23. Rxf8+ Rxf8 24. Rxf8+ Qxf8 25. Qb5 Nce7 26. Qd7 Qf5 27. Qe8+ Qf8 28. Qxf8+ Kxf8 29. Nc3 Nf5 30. Bf2 Nf4 31. Kf1 Ne6 32. Nb5 a6 33. Nc3 Nfxd4 34. Bxd4 Nxd4 35. Nxd5 1/2-1/2

