[Event "Biel ATO 55th"]
[Site "Biel"]
[Date "2022.??.??"]
[Round "1"]
[White "Ong, Weng Yan"]
[Black "Stijve, Niels"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "1617"]
[BlackElo "1958"]
[PlyCount "55"]
[EventDate "2022.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Bb5 a6 4. Be2 d5 5. exd5 exd5 6. d4 Nc6 7. dxc5 Bxc5 8. Nbd2 Nge7 9. Nb3 Bd6 10. Be3 0-0 11. 0-0 Qc7 12. Bc5 Rd8 13. Bxd6 Rxd6 14. Re1 Rf6 15. Qd2 Bf5 16. Bd3 Bg4 17. Nbd4 Rh6 18. h3 Nxd4 19. Nxd4 Re8 20. Re3 Be6 21. Rae1 Nc6 22. Nxc6 bxc6 23. f4 Kf8 24. f5 Qb6 25. Kh1 Bd7 26. Rxe8+ Bxe8 27. Qe2 Qd8 28. Bxa6 1/2-1/2

[Event "South Wales New Year op"]
[Site "Bridgend"]
[Date "2020.01.05"]
[Round "5"]
[White "Morgans, Justin"]
[Black "Ong, Weng Yan"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "1613"]
[BlackElo "1653"]
[PlyCount "52"]
[EventDate "2020.01.03"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 c5 7. dxc5 Bxc5 8. Bd3 0-0 9. 0-0 Qc7 10. Qe2 b6 11. h4 Qxg3 12. Kh1 Qg4 13. b3 Bb7 14. Bb2 Bxf3 15. Qxf3 Qxh4+ 16. Kg1 Ng4 17. Qh3 Qxh3 18. gxh3 Nge5 19. Be4 Rac8 20. Kh2 Nc6 21. Rg1 Bd6+ 22. Kh1 Be5 23. Bxe5 Ndxe5 24. f4 Ng6 25. Raf1 Nd4 26. c4 Ne2 0-1

[Event "South Wales New Year op"]
[Site "Bridgend"]
[Date "2020.01.05"]
[Round "4"]
[White "Ong, Weng Yan"]
[Black "Buttell, David"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "1653"]
[BlackElo "1805"]
[PlyCount "102"]
[EventDate "2020.01.03"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. 0-0 Nc6 6. c3 Nf6 7. Re1 e5 8. c4 Be7 9. d3 0-0 10. Nc3 a6 11. Bg5 Ne8 12. Be3 Nc7 13. Na4 Rab8 14. Nb6 Qd8 15. Qb1 Ne6 16. Nd5 Bg5 17. Nxg5 Nxg5 18. f4 exf4 19. Bxf4 Ne6 20. Qc1 Nxf4 21. Qxf4 Ne5 22. Rad1 b5 23. b3 Ng6 24. Qg3 Qd7 25. Ne3 Qe6 26. Nf5 Rbd8 27. Nh4 Nxh4 28. Qxh4 Qe5 29. Qf2 f5 30. exf5 Qxf5 31. Qxf5 Rxf5 32. d4 bxc4 33. bxc4 Rb8 34. dxc5 dxc5 35. Rd6 Rf4 36. Rc1 Rb2 37. Rxa6 Rff2 38. Ra8+ Kf7 39. Rf1 Rxf1+ 40. Kxf1 Rb4 41. a4 Rxc4 42. a5 Ra4 43. a6 Ra2 44. Rc8 Rxa6 45. Rxc5 Rf6+ 46. Ke2 h6 47. Rc3 g5 48. Rf3 h5 49. Rxf6+ Kxf6 50. Kf3 Kf5 51. g3 Ke5 1/2-1/2

[Event "South Wales New Year op"]
[Site "Bridgend"]
[Date "2020.01.04"]
[Round "3"]
[White "Britton, Richard"]
[Black "Ong, Weng Yan"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2162"]
[BlackElo "1653"]
[PlyCount "29"]
[EventDate "2020.01.03"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 dxe4 4. dxe4 Bc5 5. Ngf3 Nf6 6. Bd3 Nc6 7. 0-0 0-0 8. Nb3 Bb6 9. e5 Nd5 10. Bxh7+ Kxh7 11. Ng5+ Kg6 12. h4 Nxe5 13. Qe2 f6 14. h5+ Kf5 15. Qe4# 1-0

[Event "South Wales New Year op"]
[Site "Bridgend"]
[Date "2020.01.04"]
[Round "2"]
[White "Ong, Weng Yan"]
[Black "Bevan, Peter M"]
[Result "0-1"]
[ECO "B27"]
[WhiteElo "1653"]
[BlackElo "1889"]
[PlyCount "142"]
[EventDate "2020.01.03"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Qxd4 Nf6 5. Nc3 Nc6 6. Qa4 d6 7. Bb5 Bd7 8. Be3 a6 9. Be2 Bg7 10. Qb3 b5 11. 0-0 0-0 12. a4 Be6 13. Nd5 Nxe4 14. axb5 axb5 15. Qxb5 Bd7 16. Rxa8 Qxa8 17. Nxe7+ Nxe7 18. Qxd7 Nf5 19. Qa7 Nxe3 20. Qxe3 Bxb2 21. Bd3 Re8 22. Qb6 Bc3 23. Qc7 Bb4 24. Qc4 Bc5 25. Bxe4 Rxe4 26. Qd3 Qe8 27. Nd2 Re2 28. Nb3 Rxf2 29. Nxc5 Rxf1+ 30. Kxf1 dxc5 31. c4 Qe5 32. h3 Kg7 33. Kf2 h5 34. Kf3 h4 35. Qe4 Qc3+ 36. Kf2 Qg3+ 37. Ke2 Qg5 38. Kf3 Qg3+ 39. Ke2 g5 40. Qd5 f6 41. Qb7+ Kh6 42. Qe4 Qe5 43. Kf3 Kg7 44. Qb7+ Kg6 45. Qe4+ Qxe4+ 46. Kxe4 f5+ 47. Kd5 f4 48. Kxc5 g4 49. Kd6 f3 50. gxf3 gxf3 51. c5 f2 52. c6 f1Q 53. c7 Qf4+ 54. Kd7 Qd4+ 55. Ke7 Qc5+ 56. Kd7 Qd5+ 57. Ke7 Qc6 58. Kd8 Qd6+ 59. Kc8 Kf6 60. Kb8 Qb6+ 61. Ka8 Qa6+ 62. Kb8 Qb5+ 63. Ka7 Qc5+ 64. Kb7 Qe7 65. Ka8 Qd7 66. Kb8 Kf5 67. c8Q Qxc8+ 68. Kxc8 Kf4 69. Kd7 Kg3 70. Ke6 Kxh3 71. Kf5 Kg2 0-1

[Event "South Wales New Year op"]
[Site "Bridgend"]
[Date "2020.01.03"]
[Round "1"]
[White "Gay, Conor"]
[Black "Ong, Weng Yan"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "1946"]
[BlackElo "1653"]
[PlyCount "119"]
[EventDate "2020.01.03"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 cxd4 7. cxd4 Nge7 8. Na3 Nf5 9. Nc2 Bb4+ 10. Kf1 Be7 11. g4 Nh4 12. Nxh4 Bxh4 13. Kg2 f6 14. f4 fxe5 15. fxe5 0-0 16. Rf1 Be7 17. Rxf8+ Kxf8 18. a3 Bd7 19. Be3 Kg8 20. b4 Rc8 21. Bd3 Nd8 22. Qe2 a6 23. Ne1 Nf7 24. Nf3 Qd8 25. h4 h6 26. g5 hxg5 27. hxg5 Bxg5 28. Nxg5 Nxg5 29. Qh5 Nf7 30. Rf1 Be8 31. Qh7+ Kf8 32. Qh8+ Ke7 33. Qxg7 Kd7 34. Bg6 Qh4 35. Rxf7+ Bxf7 36. Qxf7+ Qe7 37. Qxe7+ Kxe7 38. Kf2 Rc3 39. Bg5+ Kd7 40. Bh6 Rxa3 41. Bf8 b6 42. Ke2 Rc3 43. Kd2 Rc4 44. Kd3 a5 45. bxa5 bxa5 46. Bh5 a4 47. Bc5 Rc1 48. Kd2 Rxc5 49. dxc5 Kc6 50. Be8+ Kxc5 51. Bxa4 Kd4 52. Bd7 Kxe5 53. Bc8 Kd6 54. Ke3 e5 55. Bb7 Kc5 56. Bxd5 Kxd5 57. Kd3 e4+ 58. Ke3 Ke5 59. Ke2 Kd4 60. Kd2 1/2-1/2

[Event "London Classic op U2050-A 11th"]
[Site "London"]
[Date "2019.12.01"]
[Round "4"]
[White "Evans, Ruben"]
[Black "Ong, Weng Yan"]
[Result "1/2-1/2"]
[ECO "A44"]
[WhiteElo "1458"]
[BlackElo "1703"]
[PlyCount "46"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 c5 2. d5 e5 3. c4 d6 4. Nc3 Be7 5. e4 Bg5 6. Bd3 Bxc1 7. Qxc1 Nf6 8. Nge2 0-0 9. 0-0 Ne8 10. f4 exf4 11. Nxf4 Nd7 12. Qc2 Ne5 13. Rae1 Nf6 14. Be2 a6 15. b3 Bd7 16. Nd3 Re8 17. Nxe5 Rxe5 18. Bd3 Qe8 19. h3 Qc8 20. Rf3 Be8 21. Qf2 Nd7 22. Kh2 Re7 23. Qh4 Re5 1/2-1/2

[Event "London Classic op U2050-A 11th"]
[Site "London"]
[Date "2019.12.01"]
[Round "5"]
[White "Ong, Weng Yan"]
[Black "Chiang, Richard"]
[Result "1/2-1/2"]
[ECO "B34"]
[WhiteElo "1703"]
[BlackElo "1577"]
[PlyCount "63"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Bg7 6. Be3 Nf6 7. Be2 0-0 8. 0-0 d5 9. exd5 Nxd5 10. Nxd5 Qxd5 11. Nxc6 Qxc6 12. c3 Bf5 13. Qb3 Be6 14. Qb4 Bd5 15. Bb5 Qc7 16. Qc5 Qxc5 17. Bxc5 a6 18. Ba4 Bf6 19. Rfe1 Be6 20. Bb3 Bxb3 21. axb3 Rfe8 22. Rad1 Rac8 23. Bd4 e5 24. Be3 Red8 25. f3 Rxd1 26. Rxd1 Rd8 27. Rxd8+ Bxd8 28. Kf2 Kf8 29. Bc5+ Ke8 30. Bd6 f6 31. Ke3 Kd7 32. Bb4 1/2-1/2

[Event "London Classic op U2050-A 11th"]
[Site "London"]
[Date "2019.11.30"]
[Round "2"]
[White "Hortin, Matthew J"]
[Black "Ong, Weng Yan"]
[Result "1-0"]
[ECO "A28"]
[WhiteElo "1826"]
[BlackElo "1703"]
[PlyCount "149"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 d5 5. cxd5 Nxd5 6. Bb5 Nxc3 7. Bxc6+ bxc6 8. dxc3 Qxd1+ 9. Kxd1 Bd6 10. e4 a5 11. Be3 Ba6 12. Kc2 c5 13. b3 Bb7 14. Nd2 a4 15. f3 Ke7 16. h4 axb3+ 17. axb3 Rxa1 18. Rxa1 Ra8 19. Rxa8 Bxa8 20. Nc4 Bc6 21. Nb2 f5 22. exf5 Bd7 23. Nd3 Bxf5 24. g4 Bg6 25. h5 Bf7 26. Bxc5 Bd5 27. Bxd6+ cxd6 28. Ne1 Kf6 29. c4 Bb7 30. Kd3 g6 31. hxg6 Kxg6 32. Ke3 h5 33. gxh5+ Kxh5 34. Nd3 Kg5 35. c5 dxc5 36. Nxc5 Bd5 37. b4 Kf6 38. b5 Ke7 39. Ne4 Kd8 40. Nc3 Bb7 41. Ne4 Bd5 42. Kd3 Kc7 43. Kc3 Kb6 44. Kb4 Bb7 45. Nd2 Kc7 46. Kc5 Ba8 47. Ne4 Bb7 48. Nd2 Ba8 49. b6+ Kd7 50. Ne4 Bb7 51. Kb5 Ke7 52. Ka5 Kd8 53. Kb4 Ke7 54. Kc4 Kd8 55. Kd3 Ke7 56. Ke3 Bc6 57. Nc5 Kd8 58. Nd3 e4 59. fxe4 Kc8 60. Nc5 Be8 61. Kd4 Bf7 62. Ke5 Bg6 63. Kd6 Kb8 64. e5 Bf7 65. e6 Bg6 66. Kd7 Bf5 67. Ke7 Bg4 68. Kf7 Bh5+ 69. Kf8 Bg4 70. e7 Bh5 71. e8Q+ Bxe8 72. Kxe8 Ka8 73. b7+ Kb8 74. Kd8 Ka7 75. Kc8 1-0

[Event "London Classic op U2050-A 11th"]
[Site "London"]
[Date "2019.11.30"]
[Round "3"]
[White "Ong, Weng Yan"]
[Black "Cowan, Xavier"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "1703"]
[BlackElo "1740"]
[PlyCount "88"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. 0-0 Ngf6 5. Re1 e6 6. c3 Be7 7. d4 0-0 8. Bf4 a6 9. Bf1 b5 10. dxc5 Nxc5 11. e5 dxe5 12. Nxe5 Qxd1 13. Rxd1 Bb7 14. Nd2 Nd5 15. Bg3 f6 16. Nd3 e5 17. Nxc5 Bxc5 18. c4 bxc4 19. Bxc4 Kh8 20. Nb3 Bd4 21. Nxd4 exd4 22. Rxd4 Nb6 23. Bb3 Rac8 24. f3 Bc6 25. Be6 Rcd8 26. Rxd8 Rxd8 27. Rc1 Bb5 28. Bf2 Rd6 29. Bb3 g6 30. Bxb6 Rxb6 31. Rc2 Rb7 32. Kf2 Re7 33. Bc4 Bxc4 34. Rxc4 Re6 35. b4 Kg7 36. a4 h5 37. b5 Kf7 38. Rc7+ Ke8 39. Rc6 Rxc6 40. bxc6 Kd8 41. Ke3 Kc7 42. Kd4 Kxc6 43. Kc4 f5 44. f4 h4 1/2-1/2

[Event "London Classic op U2050-A 11th"]
[Site "London"]
[Date "2019.11.29"]
[Round "1"]
[White "Ong, Weng Yan"]
[Black "McGettigan, Andrew"]
[Result "0-1"]
[ECO "B10"]
[WhiteElo "1703"]
[BlackElo "1930"]
[PlyCount "70"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. Ne5 Nc6 5. d4 Nf6 6. c3 e6 7. Nd2 Qb6 8. Qb3 Nxe5 9. dxe5 Nd7 10. Qxb6 Nxb6 11. Nb3 Bd7 12. Nd4 Rc8 13. Be3 Nc4 14. Bxc4 Rxc4 15. Kd2 Be7 16. a4 a6 17. b3 Rc8 18. Rhc1 0-0 19. Kd3 f6 20. Nf3 Be8 21. exf6 gxf6 22. Nd2 Bg6+ 23. Ke2 e5 24. f4 Bd6 25. g3 Rc7 26. Nf3 Rfc8 27. Bd2 Bh5 28. Kf2 Bc5+ 29. Kg2 e4 30. Nd4 Bxd4 31. cxd4 Rc2 32. Kg1 Bf3 33. h4 R8c6 34. Rxc2 Rxc2 35. Be1 e3 0-1

[Event "South Wales op 16th"]
[Site "Cardiff"]
[Date "2019.07.12"]
[Round "9"]
[White "May, Adam John"]
[Black "Ong, Weng Yan"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "1917"]
[BlackElo "1624"]
[PlyCount "111"]
[EventDate "2019.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nb6 6. Nf3 Nc6 7. 0-0 Be7 8. a3 0-0 9. b4 Be6 10. d3 Nd4 11. Bb2 f6 12. Nxd4 exd4 13. Nb5 c5 14. bxc5 Bxc5 15. Rc1 Qe7 16. Nxd4 Bxd4 17. Bxd4 Qd7 18. Ba1 Rac8 19. Rxc8 Rxc8 20. e3 Nd5 21. e4 Nc3 22. Qd2 Nb5 23. d4 Nxa3 24. d5 Bf7 25. Rc1 Nc4 26. Qd4 Nd6 27. Rxc8+ Nxc8 28. e5 fxe5 29. Qxe5 Qg4 30. Bf3 Qg6 31. Be4 Qf6 32. Qc7 Qxa1+ 33. Kg2 Qa4 34. Qxc8+ Qe8 35. Qc2 g6 36. d6 Qe6 37. Qd3 Qd7 38. Bf3 Be6 39. h4 b5 40. Qd4 a5 41. Qc5 Bh3+ 42. Kh2 Bf1 43. Bc6 Qd8 44. Qd5+ Kf8 45. d7 Bc4 46. Qd6+ Kf7 47. Qf4+ Ke6 48. h5 a4 49. Qe4+ Kd6 50. hxg6 hxg6 51. Qxg6+ Kc5 52. Qe8 Qf6 53. d8Q Qxf2+ 54. Bg2 Bf1 55. Qf8+ Qxf8 56. Qxf8+ 1-0

[Event "South Wales op 16th"]
[Site "Cardiff"]
[Date "2019.07.11"]
[Round "8.20"]
[White "Bevan, Peter M"]
[Black "Ong, Weng Yan"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "1942"]
[BlackElo "1624"]
[PlyCount "100"]
[EventDate "2019.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nd7 5. d4 Ngf6 6. Bd3 Nxe4 7. Bxe4 Nf6 8. Bd3 c5 9. 0-0 cxd4 10. Nxd4 Bc5 11. Nb3 Bb6 12. Qf3 0-0 13. Bg5 Qd5 14. Qxd5 Nxd5 15. c4 Nb4 16. Be4 f6 17. Bf4 e5 18. Bd2 Na6 19. Bd5+ Kh8 20. Rac1 Rd8 21. Rfd1 Nc5 22. Bb4 Nxb3 23. axb3 Bg4 24. Rd2 Bd4 25. Bc3 Bxc3 26. bxc3 Rd7 27. Ra2 a6 28. f3 Bf5 29. Kf2 Re8 30. Rd2 Be6 31. Rcd1 Red8 32. Ke3 Bxd5 33. Rxd5 Rxd5 34. Rxd5 Rxd5 35. cxd5 Kg8 36. c4 b6 37. b4 Kf7 38. g4 g6 39. Ke4 a5 40. b5 a4 41. Kd3 f5 42. gxf5 gxf5 43. c5 Ke7 44. cxb6 Kd6 45. Kc4 a3 46. Kb3 e4 47. fxe4 fxe4 48. b7 Kc7 49. b6+ Kxb7 50. d6 Kxb6 0-1

[Event "South Wales op 16th"]
[Site "Cardiff"]
[Date "2019.07.11"]
[Round "7"]
[White "Ong, Weng Yan"]
[Black "Thomas, Roy"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "1624"]
[BlackElo "1708"]
[PlyCount "81"]
[EventDate "2019.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 4. e5 Nd5 5. c3 g6 6. 0-0 Bg7 7. d4 cxd4 8. cxd4 0-0 9. Nc3 Nc7 10. Bc4 d6 11. Bf4 dxe5 12. dxe5 Bg4 13. Re1 Ne6 14. Bg3 Ned4 15. Be2 Nxe2+ 16. Qxe2 Nd4 17. Qe4 Bxf3 18. gxf3 Nc6 19. Rad1 Qb6 20. Re2 Rad8 21. Nd5 Qa5 22. Red2 Rfe8 23. b4 Qa4 24. Nxe7+ Kf8 25. Nxc6 Qxd1+ 26. Rxd1 Rxd1+ 27. Kg2 bxc6 28. Qxc6 Rdd8 29. Qc5+ Kg8 30. Qxa7 Ra8 31. Qd7 Red8 32. Qc6 Rdc8 33. Qb7 Rcb8 34. Qe4 Re8 35. b5 Rxa2 36. b6 Rb2 37. Qd4 Rb1 38. Qd7 Rb8 39. e6 R8xb6 40. exf7+ Kh8 41. Qe8+ 1-0

[Event "South Wales op 16th"]
[Site "Cardiff"]
[Date "2019.07.10"]
[Round "6"]
[White "Ong, Weng Yan"]
[Black "Camp, Imogen AL"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "1624"]
[BlackElo "1850"]
[PlyCount "62"]
[EventDate "2019.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d4 exd4 5. e5 Nd5 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Qxd2 d6 9. Bb5 0-0 10. 0-0 a6 11. Bxc6 bxc6 12. Nc3 Nb6 13. b3 Bg4 14. Qf4 Qd7 15. h3 Bh5 16. Rac1 Rfe8 17. Rfe1 Re6 18. g4 Bg6 19. Nh4 h5 20. Nxg6 Rxg6 21. f3 hxg4 22. hxg4 f5 23. Rc2 fxg4 24. Rg2 Rf8 25. Qe4 gxf3 26. Rxg6 f2+ 27. Kf1 Qh3+ 28. Qg2 fxe1Q+ 29. Kxe1 Qxc3+ 30. Ke2 Qc2+ 31. Ke3 Nd5+ 0-1

[Event "South Wales op 16th"]
[Site "Cardiff"]
[Date "2019.07.09"]
[Round "5"]
[White "Jukes, Sam"]
[Black "Ong, Weng Yan"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1895"]
[BlackElo "1624"]
[PlyCount "45"]
[EventDate "2019.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. e5 c5 4. b4 cxb4 5. a3 Nc6 6. axb4 Bxb4 7. c3 Be7 8. d4 f6 9. Bd3 fxe5 10. Nxe5 Nxe5 11. dxe5 Nh6 12. Bxh6 gxh6 13. Bb5+ Kf7 14. Qh5+ Kg7 15. Ra4 Rg8 16. Bd3 Qf8 17. g3 Qe8 18. Rg4+ Kh8 19. Qxh6 Qf7 20. Rf4 Qg7 21. Qh5 Bg5 22. Rf7 Qxe5+ 23. Kf1 1-0

[Event "South Wales op 16th"]
[Site "Cardiff"]
[Date "2019.07.09"]
[Round "4"]
[White "Spanton, Timothy"]
[Black "Ong, Weng Yan"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "1900"]
[BlackElo "1624"]
[PlyCount "60"]
[EventDate "2019.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 dxe4 4. dxe4 Nc6 5. Ngf3 Nf6 6. Bb5 Bd7 7. 0-0 Bc5 8. Nb3 Bb6 9. Qe2 a6 10. Bc4 h6 11. Be3 Bxe3 12. Qxe3 0-0 13. Rad1 Qe7 14. e5 Nh7 15. Nc5 Bc8 16. Bd3 f5 17. exf6 Nxf6 18. Bc4 Kh8 19. Nh4 Qf7 20. Bxe6 Bxe6 21. Qxe6 Qh5 22. Qc4 b5 23. Qe6 Qxh4 24. Qxc6 Ng4 25. h3 Nxf2 26. Qxa8 Nxh3+ 27. gxh3 Rxa8 28. Kh2 Re8 29. Rf3 Re2+ 30. Kh1 Qg5 0-1

[Event "South Wales op 16th"]
[Site "Cardiff"]
[Date "2019.07.08"]
[Round "3"]
[White "Ong, Weng Yan"]
[Black "Chung, Ethan Cheung Jing"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1624"]
[BlackElo "1572"]
[PlyCount "111"]
[EventDate "2019.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Bd3 Bg4 6. f3 Bh5 7. Nge2 e6 8. Bd2 c6 9. 0-0 Bd6 10. Ne4 Qd8 11. Nxd6+ Qxd6 12. c3 Bg6 13. Bf4 Qd8 14. Bg5 Nbd7 15. Ng3 h6 16. Bxf6 Nxf6 17. Bxg6 fxg6 18. Re1 Kf7 19. Ne2 Re8 20. Nf4 g5 21. Nd3 Kg8 22. Qc2 Qd5 23. Re5 Qd6 24. Rae1 b6 25. R5e2 Nd7 26. Ne5 Nxe5 27. Rxe5 Kf7 28. Qf2 Rac8 29. Qg3 g6 30. Rxg5 Qxg3 31. Rxg3 c5 32. dxc5 Rxc5 33. Rg4 Rd5 34. Rf4+ Kg7 35. Rfe4 Kf6 36. Kf2 g5 37. g3 Re7 38. R1e2 Rd6 39. Rd4 Rc6 40. c4 e5 41. Rde4 Rd6 42. f4 Rde6 43. Rxe5 Rxe5 44. Rxe5 Rxe5 45. fxe5+ Kxe5 46. Ke3 g4 47. b3 a6 48. a3 a5 49. b4 a4 50. Kd3 h5 51. Ke3 Ke6 52. Kd4 Kd6 53. b5 Kc7 54. c5 bxc5+ 55. Kxc5 Kb7 56. b6 1-0

[Event "South Wales op 16th"]
[Site "Cardiff"]
[Date "2019.07.07"]
[Round "1"]
[White "Ong, Weng Yan"]
[Black "Brown, Thomas"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1624"]
[BlackElo "2092"]
[PlyCount "134"]
[EventDate "2019.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Bc4 Nf6 5. Qe2 0-0 6. 0-0 Nc6 7. c3 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Rd1 Qe7 11. Nd2 Rd8 12. f3 c6 13. Nb3 Rxd1+ 14. Qxd1 Bd7 15. Be3 b6 16. Qe2 Rd8 17. Rd1 Bc8 18. Rxd8+ Qxd8 19. Qd2 Qxd2 20. Nxd2 Bf8 21. Kf2 Nd7 22. b4 b5 23. Bb3 c5 24. a3 a5 25. Bd5 cxb4 26. cxb4 axb4 27. axb4 Nb8 28. Bc5 Bd7 29. Bb7 Bc6 30. Bxc6 Nxc6 31. Bxf8 Kxf8 32. Nb1 Nxb4 33. Nc3 Nd3+ 34. Ke3 Nf4 35. Nxb5 Nxg2+ 36. Kf2 Nf4 37. Nd6 Ke7 38. Nc4 Kf6 39. Nd6 Nd3+ 40. Ke3 Nb2 41. Ne8+ Ke7 42. Nc7 Nc4+ 43. Kd3 Nd6 44. Nd5+ Ke6 45. Nc7+ Kf6 46. Na8 Kg5 47. Ke3 Kh4 48. Nb6 Kh3 49. Nd7 Kxh2 50. Nxe5 Kg3 51. Ng4 h5 52. Nf6 h4 53. Ng4 h3 54. Nf2 h2 55. f4 Kg2 56. e5 Nf5+ 57. Ke2 h1Q 58. Nxh1 Kxh1 59. Kf3 Kh2 60. Kg4 Kg2 61. Kg5 Kg3 62. Kf6 Kxf4 63. Kxf7 g5 64. e6 g4 65. Kf6 g3 66. e7 Nxe7 67. Kxe7 g2 0-1

[Event "South Wales op 16th"]
[Site "Cardiff"]
[Date "2019.07.07"]
[Round "2"]
[White "Parry, Matthew"]
[Black "Ong, Weng Yan"]
[Result "1-0"]
[ECO "A44"]
[WhiteElo "1909"]
[BlackElo "1624"]
[PlyCount "107"]
[EventDate "2019.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "WLS"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 c5 2. d5 e5 3. dxe6 dxe6 4. Qxd8+ Kxd8 5. Bf4 b6 6. Nc3 Ba6 7. Nf3 Nc6 8. 0-0-0+ Ke8 9. e4 Bxf1 10. Rhxf1 Rd8 11. Nb5 Rxd1+ 12. Rxd1 Be7 13. Ne5 Nxe5 14. Bxe5 Bf6 15. Nc7+ Kf8 16. Bxf6 gxf6 17. Nb5 a6 18. Nc7 Ke7 19. Nxa6 Nh6 20. Nc7 Ng4 21. f3 Ne3 22. Rd2 Nc4 23. Rd3 Nd6 24. Rb3 Rg8 25. g3 Kd7 26. Nb5 Nxb5 27. Rxb5 Kc6 28. Rb3 Ra8 29. a3 Ra4 30. Kd2 c4 31. Rc3 b5 32. b3 Rxa3 33. bxc4 b4 34. Rxa3 bxa3 35. Kc3 Kc5 36. Kb3 a2 37. Kxa2 Kxc4 38. Kb2 Kb4 39. c3+ Kc4 40. Kc2 e5 41. g4 h6 42. h4 Kb5 43. Kb3 Kc5 44. c4 f5 45. gxf5 h5 46. Kc3 f6 47. Kb3 Kb6 48. Kb4 Kc6 49. c5 Kc7 50. Kb5 Kb7 51. c6+ Kc7 52. Kc5 Kb8 53. Kd6 Kc8 54. c7 1-0

[Event "London Classic U1825 op 10th"]
[Site "London"]
[Date "2018.12.16"]
[Round "4"]
[White "Chong, Kimberly"]
[Black "Ong, Weng Yan"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1713"]
[BlackElo "1564"]
[PlyCount "103"]
[EventDate "2018.12.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. c4 Nf6 5. Nc3 Nc6 6. Be2 dxc4 7. d5 Ne5 8. Nf3 Nxf3+ 9. Bxf3 Bd6 10. 0-0 0-0 11. Bg5 Be7 12. Re1 Re8 13. Qa4 Bd7 14. Qxc4 h6 15. Bf4 Rc8 16. Rac1 a6 17. a4 Bf5 18. b4 Bd6 19. Re3 Rxe3 20. fxe3 Bxf4 21. Qxf4 Qe8 22. e4 Bd7 23. e5 Nh7 24. Bh5 g6 25. Bd1 c6 26. Ne4 Rb8 27. d6 Qe6 28. Nc5 Qf5 29. Qxf5 Bxf5 30. Bb3 Nf8 31. Rf1 Re8 32. g4 Be6 33. Bxe6 Nxe6 34. Nxb7 Rb8 35. Nc5 Rxb4 36. Nxe6 Rxg4+ 37. Kh1 fxe6 38. Rd1 Rf4 39. d7 Rf8 40. d8Q Rxd8 41. Rxd8+ Kf7 42. Rc8 g5 43. Rxc6 a5 44. Rc5 Kg6 45. Rxa5 Kf5 46. Rb5 g4 47. a5 h5 48. a6 h4 49. a7 g3 50. a8Q g2+ 51. Kxg2 h3+ 52. Kxh3 1-0

[Event "London Classic U1825 op 10th"]
[Site "London"]
[Date "2018.12.16"]
[Round "5"]
[White "Maraiyesa, Seun Wole"]
[Black "Ong, Weng Yan"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "1758"]
[BlackElo "1564"]
[PlyCount "55"]
[EventDate "2018.12.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Ne2 Ne7 6. 0-0 0-0 7. Bg5 f6 8. Be3 Bg4 9. f3 Bf5 10. Nbc3 c6 11. Bf4 Bxf4 12. Nxf4 Qd6 13. Nce2 Nd7 14. g4 Bxd3 15. Qxd3 f5 16. Qe3 Rae8 17. Qe6+ Qxe6 18. Nxe6 Rf6 19. N2f4 Ng6 20. Nxg6 Rexe6 21. Nf4 Re8 22. g5 Rf7 23. Kf2 Rfe7 24. Rfe1 Kf7 25. Rxe7+ Rxe7 26. Nd3 h6 27. h4 Re6 28. f4 1/2-1/2

[Event "London Classic U1825 op 10th"]
[Site "London"]
[Date "2018.12.15"]
[Round "2"]
[White "O'Shea, Colm"]
[Black "Ong, Weng Yan"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1703"]
[BlackElo "1564"]
[PlyCount "111"]
[EventDate "2018.12.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. g3 Ngf6 6. Nxf6+ Nxf6 7. Bg2 c5 8. Ne2 Qb6 9. 0-0 cxd4 10. Nxd4 Bc5 11. Nb3 Bd6 12. Be3 Qc7 13. Qd3 0-0 14. Rfd1 Rd8 15. Bf4 Ne8 16. Rd2 Rd7 17. Bxd6 Rxd6 18. Qe2 Bd7 19. Rad1 Bc6 20. Rxd6 Nxd6 21. Qe5 Rd8 22. Bxc6 Qxc6 23. Na5 Qb6 24. c4 h6 25. a3 Qc7 26. f4 b6 27. c5 bxc5 28. Nc4 Nb5 29. Rxd8+ Qxd8 30. Qxc5 Qd1+ 31. Kf2 Qc2+ 32. Ke3 Nd6 33. Qxd6 Qxc4 34. Qd8+ Kh7 35. Qd3+ Qxd3+ 36. Kxd3 g5 37. b4 Kg6 38. Ke4 f5+ 39. Ke5 Kh5 40. b5 Kg4 41. a4 gxf4 42. gxf4 h5 43. a5 h4 44. b6 axb6 45. axb6 Kh3 46. b7 Kxh2 47. b8Q h3 48. Kxe6 Kg3 49. Kxf5 h2 50. Qb1 Kg2 51. Ke5 Kf3 52. f5 Kg3 53. f6 Kg2 54. f7 Kh3 55. f8Q Kg3 56. Qg6+ 1-0

[Event "London Classic U1825 op 10th"]
[Site "London"]
[Date "2018.12.15"]
[Round "3"]
[White "Ong, Weng Yan"]
[Black "Thatte, Nandinee"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1564"]
[BlackElo "1411"]
[PlyCount "41"]
[EventDate "2018.12.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Nf6 5. Bc4 Bf5 6. d3 c6 7. 0-0 e6 8. Bf4 Nbd7 9. Nd4 Bg6 10. Re1 Be7 11. Qe2 Nd5 12. Nxd5 cxd5 13. Nxe6 fxe6 14. Qxe6 Qc5 15. Bd6 Qxd6 16. Qxd6 Kd8 17. Rxe7 Bf5 18. Bb5 Kc8 19. Bxd7+ Bxd7 20. Qxd7+ Kb8 21. Qxb7# 1-0

[Event "London Classic U1825 op 10th"]
[Site "London"]
[Date "2018.12.14"]
[Round "1"]
[White "Ong, Weng Yan"]
[Black "Musselman, Charles"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "1564"]
[BlackElo "1706"]
[PlyCount "43"]
[EventDate "2018.12.14"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 d6 3. d4 Nf6 4. Nc3 Bg4 5. Be2 e5 6. dxe5 Nxe5 7. Nxe5 Bxe2 8. Qxe2 dxe5 9. Bd2 c6 10. 0-0-0 Qc7 11. f3 Be7 12. Be3 0-0 13. Rd2 Bb4 14. Qc4 Bxc3 15. Qxc3 a5 16. Rhd1 h6 17. Bc5 Rfd8 18. Rxd8+ Rxd8 19. Rxd8+ Qxd8 20. Qxe5 Nd7 21. Qd6 Qg5+ 22. f4 1/2-1/2

