[Event "Penang op 15th"]
[Site "Penang"]
[Date "2023.12.22"]
[Round "9"]
[White "Cheng, Chao Xin"]
[Black "Koay, Yu Hang"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "1775"]
[BlackElo "1574"]
[PlyCount "186"]
[EventDate "2023.12.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Nd7 6. 0-0 a5 7. a4 Ne7 8. Nbd2 c5 9. dxc5 Nc6 10. Nb3 Nxc5 11. Bg5 Qb6 12. Nbd4 Bg6 13. Nb5 Ne4 14. Be3 Qd8 15. c4 Nb4 16. cxd5 Nxd5 17. Bc4 Nxe3 18. Qxd8+ Rxd8 19. fxe3 Bc5 20. Nbd4 0-0 21. Rfe1 Bh5 22. Rad1 Bb4 23. Re2 h6 24. h3 Ng5 25. Ra1 Bc5 26. h4 Nxf3+ 27. Nxf3 Rd7 28. Kh2 Rfd8 29. Kh3 Bg6 30. e4 Rd1 31. Rxd1 Rxd1 32. b3 Kf8 33. g4 Ke7 34. Kg3 Bb4 35. Kf4 f6 36. exf6+ gxf6 37. e5 f5 38. h5 fxg4 39. hxg6 gxf3 40. Kxf3 Rg1 41. Bd3 Bc3 42. Rh2 Bxe5 43. Rxh6 Bg7 44. Rh4 Rd1 45. Ke2 Rc1 46. Rh7 Kf6 47. Rh3 Rc7 48. Rf3+ Ke5 49. Re3+ Kf6 50. Rh3 e5 51. Rh4 Rc3 52. b4 b6 53. bxa5 bxa5 54. Rh1 Ke6 55. Rb1 Ra3 56. Rb6+ Ke7 57. Rb7+ Kf8 58. Bc4 Rxa4 59. Rf7+ Kg8 60. Rf4+ Kh8 61. Rh4+ Bh6 62. Rxh6+ Kg7 63. Rh4 Rb4 64. Rg4 a4 65. Kd3 a3 66. Rg1 Ra4 67. Ba2 Ra6 68. Bf7 a2 69. Ra1 Kf6 70. Ke4 Ra3 71. Bxa2 Ra4+ 72. Ke3 Ra3+ 73. Kd2 e4 74. Kc2 Kg7 75. Kb2 Ra6 76. Kc3 Rxg6 77. Kd4 Rg4 78. Bd5 Kf6 79. Bxe4 Rg7 80. Rf1+ Ke6 81. Bd5+ Ke7 82. Re1+ Kd6 83. Re6+ Kd7 84. Kc5 Rg1 85. Rh6 Rc1+ 86. Kd4 Rd1+ 87. Ke5 Re1+ 88. Be4 Kc7 89. Rh7+ Kb6 90. Rb7+ Kc5 91. Rc7+ Kb6 92. Rc3 Kb5 93. Kd5 Kb4 1/2-1/2

[Event "Penang op 15th"]
[Site "Penang"]
[Date "2023.12.22"]
[Round "8"]
[White "Koay, Yu Hang"]
[Black "Ismail, Ahmad"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1574"]
[BlackElo "1821"]
[PlyCount "114"]
[EventDate "2023.12.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nf3 Bg4 4. Be2 Qxd5 5. Nc3 Qf5 6. d4 Nc6 7. h3 Bxf3 8. Bxf3 0-0-0 9. Be3 e5 10. d5 e4 11. Nxe4 Rxd5 12. Qe2 Re5 13. Nxf6 Qxf6 14. Qc4 Bd6 15. 0-0-0 Na5 16. Qc3 Qe6 17. Kb1 Qc4 18. Bd4 Qb5 19. a4 Qe8 20. Bxe5 Qxe5 21. Qxe5 Bxe5 22. Rd5 Nc6 23. Bg4+ Kb8 24. Bd7 f6 25. Bxc6 bxc6 26. Rd3 c5 27. Re1 g5 28. c3 h5 29. Rd5 Bd6 30. Re6 Rf8 31. Rf5 Rg8 32. Rfxf6 Rd8 33. g3 h4 34. gxh4 gxh4 35. Re4 Rg8 36. Rg4 Re8 37. Rf5 Re1+ 38. Ka2 Be7 39. Rg8+ Kb7 40. Re8 Kc6 41. Rf7 Kd7 42. Rfxe7+ Rxe7 43. Rxe7+ Kxe7 44. Kb3 Kf6 45. Kc4 Kf5 46. Kd3 Kf4 47. Ke2 c4 48. a5 a6 49. Ke1 Kf3 50. Kf1 Ke4 51. Ke2 Kf4 52. Ke1 Kf3 53. Kf1 Ke4 54. Kg2 Kf4 55. Kh2 Kf3 56. Kg1 Kf4 57. Kg2 Ke4 1/2-1/2

[Event "Penang op 15th"]
[Site "Penang"]
[Date "2023.12.21"]
[Round "6"]
[White "Koay, Yu Hang"]
[Black "Lai, Zhun Hoong Lennard"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "1574"]
[BlackElo "1296"]
[PlyCount "109"]
[EventDate "2023.12.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d3 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. Be3 Nc6 11. Nbd2 Ng4 12. h3 Nxe3 13. fxe3 0-0 14. d4 Qb6 15. Nb3 a5 16. Nc1 Bf6 17. Ne2 g6 18. a4 b4 19. d5 Ne7 20. Nd2 Bg7 21. Nc4 Qc7 22. cxb4 cxb4 23. b3 f5 24. Rc1 Qd8 25. Bd3 Bh6 26. Rf3 Nxd5 27. exd5 e4 28. Bxe4 fxe4 29. Rxf8+ Qxf8 30. Qd4 Ba6 31. Ng3 Bg7 32. Qxe4 Re8 33. Qd3 Qe7 34. Nf1 Bc3 35. Rc2 Qe4 36. Qxe4 Rxe4 37. Nxd6 Re5 38. e4 Bd3 39. Rc1 Bxe4 40. Nxe4 Rxe4 41. Rd1 Rd4 42. Rxd4 Bxd4+ 43. Kh2 Be5+ 44. g3 Kf7 45. Kg2 Ke7 46. Kf3 Kd6 47. Ke4 h5 48. g4 hxg4 49. hxg4 Bf6 50. Ne3 Bd8 51. Nc4+ Ke7 52. Ke5 Kd7 53. d6 Bh4 54. Kd5 Bd8 55. Ne5+ 1-0

[Event "Penang op 15th"]
[Site "Penang"]
[Date "2023.12.20"]
[Round "5"]
[White "Govindasamy, Kanes"]
[Black "Koay, Yu Hang"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "1373"]
[BlackElo "1574"]
[PlyCount "97"]
[EventDate "2023.12.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 Bf5 4. c4 c6 5. Qb3 Qc8 6. h3 h6 7. Nf3 e6 8. Nc3 Be7 9. Be2 0-0 10. 0-0 Nbd7 11. Rac1 dxc4 12. Bxc4 Ne4 13. Nxe4 Bxe4 14. Nd2 Bd5 15. e4 Bxc4 16. Nxc4 Nf6 17. f3 Rd8 18. Rfd1 c5 19. Kh1 b6 20. a4 Qa6 21. Ne5 Rxd4 22. Rxd4 cxd4 23. Nc6 Bc5 24. Qd1 Qb7 25. b4 Qxc6 26. bxc5 bxc5 27. Qxd4 cxd4 28. Rxc6 Rd8 29. Kg1 Kf8 30. Bd6+ Ke8 31. e5 Nd5 32. Kf1 Ne3+ 33. Ke2 Nxg2 34. Rc7 Rd7 35. Rc8+ Rd8 36. Rc7 Rd7 37. Rc8+ Rd8 38. Rc4 Nf4+ 39. Kd2 Nxh3 40. Rc7 Rd7 41. Rc8+ Rd8 42. Rc7 Ng5 43. Re7+ Kf8 44. Rd7+ Ke8 45. Re7+ Kf8 46. Rd7+ Ke8 47. Re7+ Kf8 48. Rd7+ Ke8 49. Re7+ 1/2-1/2

[Event "Penang op 15th"]
[Site "Penang"]
[Date "2023.12.19"]
[Round "4"]
[White "Koay, Yu Hang"]
[Black "Li, Bo"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1574"]
[BlackElo "2216"]
[PlyCount "98"]
[EventDate "2023.12.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Nf6 5. d4 c6 6. Bc4 Bg4 7. 0-0 e6 8. h3 Bh5 9. Re1 Nbd7 10. Bf4 Bb4 11. Re3 0-0 12. Ne4 Nxe4 13. Rxe4 Qf5 14. Bd3 Nf6 15. g4 Bxg4 16. Re5 Qxf4 17. hxg4 Qxg4+ 18. Kf1 h6 19. c3 Bd6 20. Re1 Nd5 21. Ke2 Nf4+ 22. Kd2 Nxd3 23. Kxd3 Qf5+ 24. Ke2 e5 25. dxe5 Bxe5 26. Nxe5 Qxe5+ 27. Kf1 Qb5+ 28. Qe2 Rfe8 29. Qxb5 cxb5 30. Rad1 Rxe1+ 31. Kxe1 Re8+ 32. Kf1 Re7 33. f3 g5 34. Kf2 Kg7 35. Rd6 f6 36. Kg3 Kg6 37. Rd2 h5 38. Kh3 h4 39. Kg2 f5 40. Kf2 g4 41. fxg4 fxg4 42. Rd4 Kg5 43. Rd5+ Kf4 44. Rxb5 g3+ 45. Kg2 Re2+ 46. Kf1 Rf2+ 47. Kg1 h3 48. Rxb7 h2+ 49. Kh1 Rf1+ 0-1

[Event "Penang op 15th"]
[Site "Penang"]
[Date "2023.12.19"]
[Round "3"]
[White "Weiye, Cheng"]
[Black "Koay, Yu Hang"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1376"]
[BlackElo "1574"]
[PlyCount "106"]
[EventDate "2023.12.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. h3 g6 7. Nf3 Bg7 8. 0-0 Bf5 9. Re1 0-0 10. Bf1 a6 11. b4 b5 12. a4 Qb6 13. Nbd2 Rfc8 14. Nb3 Nxb4 15. a5 Qd8 16. cxb4 Bc2 17. Qe2 Bxb3 18. Rb1 Bc2 19. Rb2 Be4 20. Ne5 Nd7 21. Bf4 Nxe5 22. dxe5 Rc6 23. Qd1 Rac8 24. Rd2 Bc2 25. Qf3 e6 26. Ree2 g5 27. Be3 h6 28. Bb6 Qd7 29. Bc5 Bg6 30. g4 Bf8 31. Bxf8 Kxf8 32. Qf6 Kg8 33. f4 Qd8 34. fxg5 hxg5 35. Qxd8+ Rxd8 36. Rh2 Kg7 37. h4 gxh4 38. Rxh4 Rdc8 39. g5 Rc1 40. Kf2 R8c2 41. Rhd4 Be4 42. Bh3 Kg6 43. Bf1 Kxg5 44. Ke2 Kf5 45. Rxc2 Rxc2+ 46. Ke1 Rb2 47. Rd2 Rxd2 48. Kxd2 Kxe5 49. Bxb5 axb5 50. a6 d4 51. a7 f5 52. a8Q Bxa8 53. Kd3 Be4+ 0-1

[Event "Penang op 15th"]
[Site "Penang"]
[Date "2023.12.18"]
[Round "2"]
[White "Koay, Yu Hang"]
[Black "Choo, Ting Han"]
[Result "0-1"]
[ECO "C84"]
[WhiteElo "1574"]
[BlackElo "1371"]
[PlyCount "88"]
[EventDate "2023.12.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. d3 0-0 8. c3 Re8 9. Be3 d5 10. exd5 Nxd5 11. h3 Be6 12. Re1 f6 13. Nbd2 f5 14. Nf1 Qd7 15. Bc1 Bf6 16. Bg5 Kh8 17. c4 Nde7 18. Be3 Rad8 19. Qc1 b4 20. Rd1 f4 21. Bc5 Bxh3 22. gxh3 Qxh3 23. N1h2 g5 24. Kh1 g4 25. Ng1 Qh5 26. Kg2 f3+ 27. Ngxf3 gxf3+ 28. Kf1 Rg8 29. Nxf3 Qxf3 30. Qe3 Qh5 31. Qe4 Rg4 32. Qf3 Nf5 33. d4 e4 34. Qxg4 Qxg4 35. d5 Ng3+ 36. fxg3 Qf3+ 37. Ke1 e3 38. Bxe3 Qxe3+ 39. Kf1 Qf3+ 40. Kg1 Qxg3+ 41. Kh1 Rg8 42. Rd2 Qh3+ 43. Rh2 Qf3+ 44. Rg2 Qxg2# 0-1

[Event "Penang op 15th"]
[Site "Penang"]
[Date "2023.12.18"]
[Round "1"]
[White "Lye, Lik Zang"]
[Black "Koay, Yu Hang"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "2279"]
[BlackElo "1574"]
[PlyCount "79"]
[EventDate "2023.12.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 e6 5. Bg2 Bd6 6. 0-0 0-0 7. Nbd2 Nbd7 8. Qc2 e5 9. cxd5 cxd5 10. dxe5 Nxe5 11. Nxe5 Bxe5 12. Nf3 Bd6 13. b3 Be6 14. Bb2 Ne4 15. Qd3 Be7 16. Nd4 Nd6 17. Nxe6 fxe6 18. Bh3 Nf5 19. e4 dxe4 20. Qxe4 Qd5 21. Qxd5 exd5 22. Bg2 Rad8 23. Rad1 b6 24. Bxd5+ Kh8 25. Be6 Nd6 26. Rfe1 Nb7 27. Rxd8 Nxd8 28. Bd5 Bc5 29. Re2 h6 30. Kg2 Nf7 31. f4 Nd6 32. Re7 Nf5 33. Rd7 Re8 34. Kf3 Re3+ 35. Kg4 Ne7 36. Bc4 Kh7 37. Bd3+ g6 38. Rd8 h5+ 39. Kg5 Rxd3 40. Rh8# 1-0

[Event "Penang op-B 14th"]
[Site "Penang"]
[Date "2022.12.24"]
[Round "9"]
[White "Lee, Xia Sean"]
[Black "Koay, Yu Hang"]
[Result "0-1"]
[ECO "D13"]
[WhiteElo "1182"]
[BlackElo "1418"]
[PlyCount "78"]
[EventDate "2022.12.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 Nc6 6. e3 e6 7. Nf3 Bd6 8. Ne5 0-0 9. Bd3 a6 10. 0-0 Qc7 11. Ng4 Nxg4 12. Bxd6 Qxd6 13. Qxg4 e5 14. Qh4 h6 15. dxe5 Qxe5 16. Rad1 d4 17. exd4 Nxd4 18. Rfe1 Qc5 19. Ne4 Qb6 20. Bc4 Rd8 21. Rd3 Be6 22. Bxe6 Nxe6 23. Rg3 Kh7 24. Qh5 Qb4 25. Qf5+ Kh8 26. Rf1 Qe7 27. Qe5 Qf8 28. Rh3 Kg8 29. Rg3 Kh8 30. f4 Qb4 31. Kh1 Qd4 32. Qf5 Rd5 33. Qxf7 Qxe4 34. Rg6 Qc4 35. Re1 Qc7 36. Qxe6 Rad8 37. Qg4 Rd2 38. Rge6 Qf7 39. Re7 Qxe7 0-1

[Event "Penang op-B 14th"]
[Site "Penang"]
[Date "2022.12.22"]
[Round "6"]
[White "Koay, Yu Hang"]
[Black "Marrhuimawan, Maximiliano"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "1418"]
[BlackElo "1625"]
[PlyCount "121"]
[EventDate "2022.12.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d3 d6 7. c3 0-0 8. Be3 Ng4 9. Nbd2 f5 10. exf5 Bxf5 11. Bc2 d5 12. h3 Nf6 13. Bg5 h6 14. Bh4 Qd7 15. Re1 Bd6 16. Bb3 Be6 17. Bg3 Bf5 18. Nxe5 Nxe5 19. Bxe5 c6 20. Nf3 Nh7 21. Nd4 Ng5 22. f4 Ne6 23. Nxe6 Bxe6 24. c4 Bxe5 25. fxe5 Rf5 26. cxd5 cxd5 27. d4 Rg5 28. Kh2 Qf7 29. Rf1 Qg6 30. Qf3 Rf5 31. Qd3 Raf8 32. Rxf5 Rxf5 33. Rf1 Qf7 34. Rxf5 Bxf5 35. Qf3 Be6 36. Qxf7+ Kxf7 37. Kg3 g5 38. Bd1 Bd7 39. Bg4 Bc6 40. Bc8 a5 41. Kg4 Kg6 42. Bf5+ Kg7 43. Bc8 b6 44. Kf5 Kf7 45. e6+ Ke7 46. Kg6 Bb5 47. Kxh6 Kf6 48. g3 Bd3 49. e7 Kxe7 50. Kxg5 Kf7 51. h4 Bc4 52. b3 Bd3 53. Bf5 Be2 54. g4 b5 55. Kf4 b4 56. Ke5 Bf3 57. Kd6 Kf6 58. Kc5 Bg2 59. Kb5 Be4 60. Bxe4 dxe4 61. Kc4 1-0

[Event "Penang op-B 14th"]
[Site "Penang"]
[Date "2022.12.21"]
[Round "4"]
[White "Koay, Yu Hang"]
[Black "He, Ying"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "1418"]
[BlackElo "1123"]
[PlyCount "163"]
[EventDate "2022.12.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d3 b5 7. Bb3 d6 8. c3 0-0 9. Be3 Na5 10. Bc2 c5 11. h3 Bb7 12. Nbd2 Rc8 13. Re1 Qc7 14. Rc1 Rfe8 15. d4 exd4 16. cxd4 c4 17. d5 Ba8 18. Nd4 Bf8 19. Qf3 Nb7 20. Nf5 Nc5 21. Bd4 Ncd7 22. Qg3 g6 23. Qg5 Qd8 24. Nf3 Nh5 25. Nh6+ Bxh6 26. Qxh6 Ne5 27. Ng5 Nf6 28. f4 Ned7 29. e5 dxe5 30. fxe5 Nxe5 31. Rxe5 Rxe5 32. Bxe5 Qxd5 33. Nf3 Qc5+ 34. Bd4 Qd6 35. Bxf6 Qxf6 36. Ng5 Qd4+ 37. Kh1 Qg7 38. Qxg7+ Kxg7 39. Be4 h6 40. Bxa8 Rxa8 41. Nf3 Rc8 42. Kg1 b4 43. Kf2 a5 44. Rc2 Kf6 45. Ke3 g5 46. Nd2 c3 47. bxc3 bxc3 48. Ne4+ Kg6 49. Rxc3 Re8 50. Kf3 Re6 51. Ra3 Re5 52. Nd6 Rd5 53. Nc4 Rf5+ 54. Ke3 Rc5 55. Nxa5 Rc2 56. Kf3 h5 57. Nb3 g4+ 58. hxg4 hxg4+ 59. Kxg4 Rxg2+ 60. Kf3 Rb2 61. Nd4 f6 62. Ra6 Kg5 63. Ra5+ Kg6 64. a4 Ra2 65. Ke4 Ra1 66. Kd3 Rd1+ 67. Ke4 Re1+ 68. Kf4 Rf1+ 69. Nf3 Kh6 70. Ra7 Kg6 71. a5 Kh6 72. a6 Ra1 73. Ra8 Kg6 74. a7 Kg7 75. Nd4 Rf1+ 76. Ke4 Re1+ 77. Kd5 Ra1 78. Nc6 Rd1+ 79. Kc5 Rc1+ 80. Kd6 Rd1+ 81. Kc7 Ra1 82. Rb8 1-0

[Event "Penang op-B 14th"]
[Site "Penang"]
[Date "2022.12.21"]
[Round "5"]
[White "Ong, Xuan En Alexander"]
[Black "Koay, Yu Hang"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "1401"]
[BlackElo "1418"]
[PlyCount "82"]
[EventDate "2022.12.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Bd6 6. Qc2 0-0 7. b3 Nbd7 8. Be2 e5 9. cxd5 Nxd5 10. Bb2 exd4 11. Nxd4 Bb4 12. 0-0 Nxc3 13. Bxc3 Bxc3 14. Qxc3 Nf6 15. Bf3 Qe7 16. Rac1 Be6 17. Rfd1 Rfd8 18. a4 Bd5 19. Bxd5 Rxd5 20. Nf3 Rad8 21. Rd4 Ne4 22. Qc2 Ng5 23. Nxg5 Qxg5 24. Rcd1 Qe5 25. Qc4 Rxd4 26. Rxd4 Rxd4 27. Qxd4 Qxd4 28. exd4 Kf8 29. Kf1 Ke7 30. Ke2 Kd6 31. Kd2 Kd5 32. Kd3 a5 33. Kc3 b6 34. Kd3 b5 35. f3 f6 36. h4 bxa4 37. bxa4 g5 38. Ke3 gxh4 39. f4 f5 40. Kd3 h6 41. Ke3 Kc4 0-1

[Event "Penang op-B 14th"]
[Site "Penang"]
[Date "2022.12.20"]
[Round "3"]
[White "Teah, Jared"]
[Black "Koay, Yu Hang"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1185"]
[BlackElo "1418"]
[PlyCount "96"]
[EventDate "2022.12.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 Bd6 5. Bg3 0-0 6. Bd3 Qe7 7. c3 Nbd7 8. Nbd2 e5 9. dxe5 Nxe5 10. Nxe5 Bxe5 11. Nf3 Bd6 12. Qc2 h6 13. 0-0 Bxg3 14. hxg3 c6 15. Rac1 Be6 16. Rfd1 Rad8 17. Qa4 Qc5 18. Nd4 Nd7 19. Nb3 Qb6 20. Qa5 Rb8 21. c4 Qxa5 22. Nxa5 Ne5 23. Be2 dxc4 24. Nxc4 Nxc4 25. Bxc4 Rfd8 26. Bxe6 fxe6 27. Kf1 Kf7 28. Ke2 Ke7 29. Rc4 Rxd1 30. Kxd1 Rd8+ 31. Ke2 Rd5 32. Ra4 a5 33. b4 axb4 34. Rxb4 b5 35. a4 Kd6 36. axb5 cxb5 37. e4 Rc5 38. g4 Kc6 39. f4 Rc4 40. Rxc4+ bxc4 41. Kd2 Kb5 42. Kc3 Kc5 43. g3 g6 44. f5 gxf5 45. gxf5 exf5 46. exf5 h5 47. f6 Kd6 48. Kxc4 Ke6 1/2-1/2

[Event "Putrajaya op 1st"]
[Site "Putrajaya"]
[Date "2019.01.19"]
[Round "1"]
[White "Zulkipli, Zaidan"]
[Black "Koay, Yu Hang"]
[Result "1-0"]
[ECO "D13"]
[WhiteElo "2191"]
[BlackElo "1115"]
[PlyCount "101"]
[EventDate "2019.01.19"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "MAS"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Qb6 7. a3 Bf5 8. Na4 Qd8 9. e3 e6 10. Rc1 Rc8 11. Be2 Be7 12. 0-0 0-0 13. b4 Nb8 14. Qb3 Nbd7 15. Nc5 Qb6 16. Qa4 Nxc5 17. bxc5 Bxc5 18. dxc5 Rxc5 19. Qb4 Qxb4 20. axb4 Rcc8 21. Nd4 Bg6 22. Bd6 Rfe8 23. Bb5 Red8 24. Be7 Rxc1 25. Rxc1 Ra8 26. Bxf6 gxf6 27. Bd7 a5 28. b5 b6 29. Bc6 Ra7 30. Nc2 a4 31. Na3 Rc7 32. Kf1 f5 33. Ke1 f6 34. Kd2 Kf8 35. Kc3 Ke7 36. Kb4 Ra7 37. Nb1 Kd6 38. Nc3 a3 39. Ra1 Bf7 40. Na4 Kc7 41. Rxa3 Bh5 42. f3 Bg6 43. Rc3 Kb8 44. Nxb6 Ra2 45. Na4 Rxg2 46. Bd7 e5 47. b6 d4 48. exd4 exd4 49. Rc8+ Kb7 50. Kb5 d3 51. Nc5# 1-0

[Event "Penang op-B 9th"]
[Site "Penang"]
[Date "2017.12.04"]
[Round "1"]
[White "Koay, Yu Hang"]
[Black "Tan, Jun Hao"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1154"]
[BlackElo "1901"]
[PlyCount "102"]
[EventDate "2017.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MAS"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. c3 d6 8. d3 0-0 9. h3 Na5 10. Bc2 c5 11. Be3 Bb7 12. Nbd2 Re8 13. Qe2 Rc8 14. b3 Qc7 15. c4 b4 16. Rfd1 Bf8 17. Nf1 g6 18. Qd2 Bg7 19. Bh6 Nh5 20. N1h2 Qe7 21. Bxg7 Kxg7 22. Ng4 f6 23. Qh6+ Kg8 24. Re1 Qg7 25. Qxg7+ Kxg7 26. g3 f5 27. Ngh2 h6 28. Rad1 Rcd8 29. g4 fxe4 30. gxh5 exf3 31. hxg6 Rf8 32. Re3 Rf6 33. Kh1 Nc6 34. Rg1 Nd4 35. Bd1 Rdf8 36. Rg4 Rxg6 37. Rxg6+ Kxg6 38. Nf1 Rf4 39. Kh2 Rh4 40. Kg3 Nf5+ 41. Kh2 Nxe3 42. fxe3 Bc8 43. Kg1 Rxh3 44. Kf2 Bg4 45. e4 Kg5 46. Bc2 Kf4 47. Bd1 Rh1 48. Bc2 Rxf1+ 49. Kxf1 Ke3 50. Bb1 f2 51. Bc2 Bh3# 0-1

