[Event "CHN-ch Gp-B"]
[Site "Liaocheng"]
[Date "2024.04.21"]
[Round "1"]
[White "Xu, Yichen"]
[Black "Chan, Wang Ip Boris"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1588"]
[BlackElo "2011"]
[PlyCount "66"]
[EventDate "2024.04.21"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CHN"]
[SourceTitle "CB18_2024"]
[SourceDate "2024.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.01"]
[SourceQuality "2"]

1. d4 Nf6 2. Bf4 e6 3. e3 b6 4. Nf3 Bb7 5. Bd3 Be7 6. 0-0 0-0 7. Nbd2 c5 8. c3 d5 9. Ne5 Ne4 10. Bxe4 dxe4 11. dxc5 Bxc5 12. Nb3 f6 13. Nxc5 bxc5 14. Nc4 Ba6 15. Qxd8 Rxd8 16. Rfd1 Nc6 17. Nd6 f5 18. a4 Bd3 19. Nb7 Rd5 20. c4 Bxc4 21. Rxd5 Bxd5 22. Nxc5 Rc8 23. Nd7 Nb4 24. Be5 Rc2 25. Bd4 Nd3 26. Ne5 a6 27. Nxd3 exd3 28. Bc3 d2 29. Rf1 Bc4 30. Bxd2 Bxf1 31. Bb4 Bb5 32. axb5 Rc1+ 33. Be1 Rxe1# 0-1

[Event "Hong Kong op"]
[Site "Hong Kong"]
[Date "2023.12.29"]
[Round "9"]
[White "Xu, Yichen"]
[Black "Dang, Letian"]
[Result "1/2-1/2"]
[ECO "D02"]
[BlackElo "1304"]
[PlyCount "86"]
[EventDate "2023.12.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "HKG"]
[SourceTitle "CB01_2024"]
[SourceDate "2024.01.03"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.03"]
[SourceQuality "1"]

1. d4 c6 2. Bf4 d5 3. e3 Bf5 4. c3 Nf6 5. Nd2 e6 6. Qb3 Qb6 7. Ngf3 Nbd7 8. Be2 Be7 9. 0-0 0-0 10. Ne5 Nxe5 11. Bxe5 Ne4 12. Nxe4 Bxe4 13. Qxb6 axb6 14. Rfd1 b5 15. a3 Ra7 16. Bd3 Bxd3 17. Rxd3 Rfa8 18. Rc1 f6 19. Bg3 h5 20. f3 f5 21. h3 g5 22. Bh2 Rf8 23. Re1 b6 24. e4 dxe4 25. fxe4 f4 26. Rf3 c5 27. g3 fxg3 28. Rxf8+ Kxf8 29. Bxg3 Rd7 30. Be5 b4 31. axb4 cxb4 32. Ra1 bxc3 33. Ra8+ Rd8 34. Rxd8+ Bxd8 35. bxc3 Kf7 36. Kf2 b5 37. Ke2 Ba5 38. d5 exd5 39. exd5 Bd8 40. Kd3 Bf6 41. Bc7 Ke7 42. c4 bxc4+ 43. Kxc4 Kd7 1/2-1/2

[Event "Hong Kong op"]
[Site "Hong Kong"]
[Date "2023.12.28"]
[Round "8"]
[White "Pang, Ethan"]
[Black "Xu, Yichen"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "1648"]
[PlyCount "59"]
[EventDate "2023.12.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "HKG"]
[SourceTitle "CB01_2024"]
[SourceDate "2024.01.03"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Bd3 c5 4. exd5 Qxd5 5. Nc3 Qd8 6. dxc5 Bxc5 7. Nf3 Nf6 8. 0-0 0-0 9. a3 Bd7 10. b4 Bb6 11. Bb2 Nc6 12. Qe2 Nd4 13. Nxd4 Bxd4 14. Rad1 e5 15. Rb1 Rc8 16. Ne4 Bxb2 17. Rxb2 Bc6 18. Rbb1 Nxe4 19. Bxe4 Bxe4 20. Qxe4 Qc7 21. Rfe1 Rfe8 22. Rbd1 b6 23. c4 Qxc4 24. Qxc4 Rxc4 25. Rxe5 Kf8 26. Rxe8+ Kxe8 27. Kf1 Rc3 28. Ra1 Kd7 29. Ke2 Rc2+ 30. Ke3 1/2-1/2

[Event "Hong Kong op"]
[Site "Hong Kong"]
[Date "2023.12.27"]
[Round "6"]
[White "Ng, Jing Xuan Alyssa"]
[Black "Xu, Yichen"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1338"]
[PlyCount "107"]
[EventDate "2023.12.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "HKG"]
[SourceTitle "CB01_2024"]
[SourceDate "2024.01.03"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 cxd4 7. cxd4 Nge7 8. b4 a6 9. Nc3 Nf5 10. Be3 Nxe3 11. fxe3 Bd7 12. Bd3 Rc8 13. Rc1 Be7 14. 0-0 0-0 15. Na4 Qd8 16. Nc5 Bxc5 17. Rxc5 Na7 18. Rxc8 Qxc8 19. Ng5 h6 20. Qh5 Bb5 21. Bxb5 Nxb5 22. Nxf7 Qe8 23. Nxh6+ gxh6 24. Qg4+ Kh7 25. Rxf8 Qxf8 26. Qxe6 Nc3 27. Qg4 Ne4 28. Qf4 Qxf4 29. exf4 Nc3 30. Kf2 Nb5 31. Ke3 Nxa3 32. Kd3 Kg6 33. g4 Nc4 34. h4 h5 35. f5+ Kh6 36. g5+ Kg7 37. e6 Nd6 38. f6+ Kg6 39. e7 Kf7 40. Ke2 b6 41. Kd3 Kg6 42. Kc2 Kf7 43. Kd3 Kg6 44. Ke2 Kf7 45. Kf3 Nf5 46. g6+ Ke8 47. Kf4 Nd6 48. Ke5 Ne4 49. Ke6 Nxf6 50. Kxf6 a5 51. bxa5 bxa5 52. Ke6 a4 53. g7 a3 54. g8Q# 1-0

[Event "Hong Kong op"]
[Site "Hong Kong"]
[Date "2023.12.26"]
[Round "5"]
[White "Xu, Yichen"]
[Black "Londono, Diego"]
[Result "1/2-1/2"]
[ECO "D00"]
[BlackElo "1638"]
[PlyCount "69"]
[EventDate "2023.12.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "HKG"]
[SourceTitle "CB01_2024"]
[SourceDate "2024.01.03"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.03"]
[SourceQuality "1"]

1. d4 e6 2. Bf4 d5 3. e3 c5 4. c3 Nf6 5. Bd3 Qb6 6. Qb3 c4 7. Qxb6 axb6 8. Bc2 Nc6 9. Nd2 Be7 10. Ngf3 b5 11. 0-0 b4 12. e4 b5 13. Ne5 Bb7 14. Nxc6 Bxc6 15. f3 0-0 16. Be5 Nd7 17. exd5 Bxd5 18. Bg3 bxc3 19. bxc3 Ra5 20. a4 Rfa8 21. Be4 Rxa4 22. Rxa4 Rxa4 23. Bxd5 exd5 24. Re1 Kf8 25. Nf1 b4 26. Ne3 Nf6 27. Nf5 b3 28. Rb1 Ra2 29. Nxe7 Kxe7 30. Bf4 Rc2 31. Rc1 Ra2 32. Rb1 b2 33. Kf2 Ra3 34. Bd2 Rb3 35. Ke1 1/2-1/2

[Event "Daqing Boyi Cup-B"]
[Site "Daqing"]
[Date "2023.08.16"]
[Round "8"]
[White "Du, Tairan"]
[Black "Xu, Yichen"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "139"]
[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. d4 Nf6 2. g3 d5 3. Bg2 e6 4. Nf3 Bd6 5. Bg5 h6 6. Bxf6 Qxf6 7. c3 c5 8. Nbd2 Nc6 9. dxc5 Bxc5 10. e4 Ne5 11. 0-0 0-0 12. Nxe5 Qxe5 13. exd5 exd5 14. Nb3 Bb6 15. Qxd5 Qe2 16. Qd2 Qh5 17. Rfe1 Rd8 18. Qe2 Bg4 19. Qe5 Qxe5 20. Rxe5 Rab8 21. Re7 Be6 22. Nd4 Bxd4 23. cxd4 Rxd4 24. a3 Bd5 25. Bxd5 Rxd5 26. Rc1 Rf5 27. Rcc7 b5 28. Rxa7 b4 29. Rab7 Rxb7 30. Rxb7 bxa3 31. bxa3 Ra5 32. Rb3 Kf8 33. Kf1 Ke7 34. Ke2 Kd6 35. Rd3+ Kc6 36. Kd2 Rf5 37. Ke3 Kb5 38. f4 Kc4 39. Rd7 Kb5 40. Kf3 g6 41. g4 Rf6 42. Kg3 Ra6 43. Rxf7 Rxa3+ 44. Kh4 Ra2 45. h3 Ra4 46. f5 Ra6 47. fxg6 Rxg6 48. Kh5 Re6 49. Rh7 Re3 50. h4 Kc5 51. Rxh6 Kd5 52. Rf6 Ke5 53. Rf5+ Ke6 54. Kg5 Rd3 55. h5 Rd8 56. h6 Rg8+ 57. Kh5 Rh8 58. Rf1 Ke7 59. g5 Ke6 60. g6 Rd8 61. h7 Rd5+ 62. Kh6 Rd2 63. h8Q Rh2+ 64. Kg7 Rxh8 65. Kxh8 Ke7 66. g7 Kd7 67. g8Q Ke7 68. Qg6 Kd7 69. Rf7+ Ke8 70. Qg8# 1-0

[Event "Daqing Boyi Cup-B"]
[Site "Daqing"]
[Date "2023.08.15"]
[Round "6"]
[White "Chen, Haoyang1111"]
[Black "Xu, Yichen"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "135"]
[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. d4 Nf6 2. Nf3 c6 3. Bf4 d5 4. e3 Bf5 5. c4 e6 6. Nc3 Bb4 7. Qb3 Bxc3+ 8. bxc3 Qb6 9. c5 Qxb3 10. axb3 a6 11. b4 Ne4 12. Ra3 0-0 13. Be2 Nd7 14. 0-0 h6 15. h3 Kh8 16. Rfa1 g5 17. Bh2 Rac8 18. c4 dxc4 19. Bxc4 Rg8 20. g4 Bg6 21. Rd1 h5 22. Ne5 Nxe5 23. Bxe5+ Kh7 24. f3 hxg4 25. hxg4 f6 26. Bh2 Rce8 27. fxe4 Bxe4 28. Rf1 Kg7 29. Bd3 Bxd3 30. Rxd3 Rh8 31. e4 Rh4 32. Rg3 Rd8 33. Rd1 Rdh8 34. Rg2 Rh3 35. e5 Rb3 36. exf6+ Kf7 37. Be5 Rbh3 38. Kf2 Rb3 39. Rd2 Rxb4 40. Ke1 Rb1+ 41. Ke2 Rh3 42. Rg3 Rxg3 43. Bxg3 Kxf6 44. Be5+ Kf7 45. Kf3 Rb3+ 46. Ke4 a5 47. Ra2 Rb5 48. Bc7 Kf6 49. Bxa5 Rb1 50. Rf2+ Ke7 51. Rg2 Rb5 52. Bc7 Rb1 53. Rh2 Kf6 54. Bd8+ Kg6 55. Re2 Rf1 56. Ke5 Rf4 57. Re4 Rf8 58. Be7 Re8 59. Kxe6 Kg7 60. Kf5 Kf7 61. Bxg5 Ra8 62. Re7+ Kg8 63. Rxb7 Ra4 64. Kg6 Ra8 65. Bf6 Rf8 66. Rg7+ Kh8 67. Rh7+ Kg8 68. Rh8# 1-0

[Event "Daqing Boyi Cup-B"]
[Site "Daqing"]
[Date "2023.08.15"]
[Round "5"]
[White "Xu, Yichen"]
[Black "Shao, Yanrui"]
[Result "1/2-1/2"]
[ECO "D02"]
[BlackElo "1171"]
[PlyCount "101"]
[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. d4 Nf6 2. Bf4 d5 3. e3 e6 4. Nf3 Bd6 5. Bg3 c5 6. c3 Bxg3 7. hxg3 Nbd7 8. Bb5 a6 9. Bxd7+ Nxd7 10. Qc2 h6 11. Nbd2 b6 12. Ne5 Nxe5 13. dxe5 Bb7 14. Nf3 Rc8 15. Qd3 b5 16. g4 b4 17. g5 bxc3 18. bxc3 h5 19. g6 f5 20. exf6 Qxf6 21. Rb1 Bc6 22. Qxa6 Qxc3+ 23. Nd2 0-0 24. Rxh5 Qf6 25. Qf1 Qxg6 26. Qh1 c4 27. Rc1 Qf6 28. Nf3 Qb2 29. Rd1 Qc3+ 30. Kf1 Qf6 31. Rd2 Qa1+ 32. Ne1 c3 33. Rh8+ Kf7 34. Qh5+ Ke7 35. Qg5+ Kd6 36. Rxf8 Bb5+ 37. Re2 Bxe2+ 38. Kxe2 Rxf8 39. Qg3+ Kc6 40. Nc2 Qxa2 41. Qg6 Qc4+ 42. Ke1 Qe4 43. Nd4+ Kd6 44. Qg3+ e5 45. Nb5+ Kc5 46. Nxc3 Qf5 47. Nd1 Rh8 48. Qxg7 Rh1+ 49. Kd2 Rh7 50. Qg8 Kc4 51. Nb2+ 1/2-1/2

[Event "Daqing Boyi Cup-B"]
[Site "Daqing"]
[Date "2023.08.14"]
[Round "4"]
[White "Xu, Yichen"]
[Black "Wang, Bo1111"]
[Result "1/2-1/2"]
[ECO "D55"]
[BlackElo "1320"]
[PlyCount "92"]
[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. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 h6 6. Bxf6 Bxf6 7. cxd5 exd5 8. Bd3 0-0 9. Nf3 c6 10. 0-0 Re8 11. Rc1 Nd7 12. Bb1 Nf8 13. b4 a6 14. Na4 Be7 15. Nc5 Bd6 16. h3 Rb8 17. Bd3 Qf6 18. e4 dxe4 19. Nxe4 Qd8 20. Re1 Bxb4 21. Re2 Be6 22. Bc4 Bxc4 23. Rxc4 Ba5 24. Nc5 Bc7 25. Rb4 Rxe2 26. Qxe2 Bb6 27. Qb2 Bxc5 28. dxc5 Qe7 29. Qc3 Ne6 30. Ne5 Rd8 31. Nd3 Rd5 32. Rg4 f5 33. Rc4 Qd7 34. Nf4 Nxf4 35. Rxf4 Qe7 36. Rc4 Qe2 37. Qb3 Qe1+ 38. Kh2 Qxf2 39. Qxb7 Qxa2 40. Rc3 f4 41. Qxc6 Qd2 42. Qe8+ Kh7 43. Qe4+ Kg8 44. Qe8+ Kh7 45. Qe4+ Kg8 46. Qe8+ Kh7 1/2-1/2

