[Event "Daqing Boyi Cup-B"]
[Site "Daqing"]
[Date "2023.08.17"]
[Round "9"]
[White "Zheng, Kaixi"]
[Black "Du, Tairan"]
[Result "0-1"]
[ECO "C11"]
[PlyCount "102"]
[EventDate "2023.08.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHN"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Bd3 c5 6. Bb5 a6 7. Bxd7+ Nxd7 8. Nf3 Qb6 9. Ne2 cxd4 10. Nexd4 Bc5 11. c3 Qc7 12. Qe2 Nf8 13. a3 Ng6 14. Be3 Bd7 15. Bd2 0-0 16. 0-0 Bxd4 17. Nxd4 Qxe5 18. Qxe5 Nxe5 19. Bf4 Ng6 20. Bd6 Rfc8 21. Rfe1 Re8 22. Rad1 f6 23. Bc5 Rac8 24. Bb6 Ne5 25. Nb3 Ba4 26. Re2 Bxb3 27. Rde1 Kf7 28. Bd4 Nd3 29. Rb1 e5 30. Re3 exd4 31. Rxd3 Bc2 32. Rxd4 Bxb1 33. Rd1 Bc2 34. Rf1 Bd3 35. Rd1 Re2 36. h3 Bc4 37. b3 Bxb3 38. Rb1 Rxc3 39. Ra1 Rcc2 40. Rf1 Bc4 41. Kh1 Red2 42. Rg1 Rxf2 43. Kh2 Bf1 44. Kg3 d4 45. a4 d3 46. Rxf1 Rxf1 47. a5 d2 48. Kh2 d1Q 49. Kg3 Qd6+ 50. Kg4 Qf4+ 51. Kh5 Rc5# 0-1

[Event "Daqing Boyi Cup-B"]
[Site "Daqing"]
[Date "2023.08.14"]
[Round "4"]
[White "Zheng, Kaixi"]
[Black "Zhang, Qiwang"]
[Result "0-1"]
[ECO "B26"]
[BlackElo "1266"]
[PlyCount "82"]
[EventDate "2023.08.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CHN"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 d6 7. f4 Nge7 8. Nge2 Nd4 9. Qd2 0-0 10. a3 Rb8 11. Bxd4 cxd4 12. Nb5 Qb6 13. Qb4 Nc6 14. Qb3 Rd8 15. a4 Na5 16. Qa2 a6 17. Na3 Qb4+ 18. Kf2 Qxa4 19. Nc4 Qxa2 20. Rxa2 Nxc4 21. dxc4 e5 22. Rd1 Be6 23. b3 b5 24. fxe5 dxe5 25. cxb5 axb5 26. Ra5 Rdc8 27. Rc1 Bh6 28. Rca1 Rxc2 29. b4 d3 30. Ra8 Rxe2+ 31. Kf3 Rxa8 32. Rxa8+ Kg7 33. Bf1 Re3+ 34. Kf2 d2 35. Rd8 Rxe4 36. Bxb5 Bg4 37. Ba4 Rxb4 38. Bc2 Rb2 39. Ba4 d1Q+ 40. Bc2 Rxc2+ 41. Rd2 Rxd2# 0-1

