[Event "THA-ch Rapid"]
[Site "Bangkok"]
[Date "2023.12.07"]
[Round "10"]
[White "Saeheng, Boonsueb"]
[Black "Wiwarin, Piyapon"]
[Result "1-0"]
[ECO "E67"]
[WhiteElo "2126"]
[BlackElo "1665"]
[PlyCount "146"]
[EventDate "2023.12.05"]
[EventType "swiss (rapid)"]
[EventRounds "13"]
[EventCountry "THA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. Nc3 Bg7 4. g3 0-0 5. Bg2 d6 6. d4 Nbd7 7. 0-0 e5 8. b3 Re8 9. e3 c6 10. Nd2 exd4 11. exd4 Qa5 12. Bb2 Qf5 13. Re1 Rxe1+ 14. Qxe1 Nf8 15. Nde4 Nxe4 16. Nxe4 d5 17. cxd5 cxd5 18. Nd6 Qc2 19. Qc1 Qxc1+ 20. Rxc1 Be6 21. Nxb7 Nd7 22. Rc7 Nf6 23. Nc5 a5 24. Rc6 Re8 25. Nxe6 fxe6 26. f3 Bf8 27. Kf2 Kf7 28. Bh3 g5 29. Bc3 Bb4 30. Bxb4 axb4 31. Rb6 g4 32. Bxg4 Nxg4+ 33. fxg4 Ra8 34. Kf3 Rxa2 35. h4 Rd2 36. Rxb4 Kf6 37. g5+ Kf5 38. g4+ Kg6 39. Rb6 Rxd4 40. Rxe6+ Kf7 41. Rb6 Rd1 42. h5 Rf1+ 43. Ke3 Rg1 44. Kf4 d4 45. Rd6 Rb1 46. Rxd4 Rxb3 47. Rd7+ Kg8 48. Re7 Rb1 49. g6 hxg6 50. h6 Rb5 51. Rg7+ Kh8 52. Rxg6 Kh7 53. Re6 Ra5 54. g5 Rb5 55. Kg4 Rb1 56. Re7+ Kg8 57. Kh5 Rb6 58. Ra7 Rb8 59. Ra6 Rc8 60. Kg6 Kh8 61. Re6 Ra8 62. Re7 Rf8 63. Kh5 Ra8 64. g6 Ra5+ 65. Kg4 Ra4+ 66. Kf5 Ra5+ 67. Kf6 Ra8 68. Rd7 Rb8 69. Ke7 Rg8 70. Rd8 Rxd8 71. Kxd8 Kg8 72. Ke7 Kh8 73. Kf6 Kg8 1-0

[Event "THA-ch Rapid"]
[Site "Bangkok"]
[Date "2023.12.07"]
[Round "11"]
[White "Wiwarin, Piyapon"]
[Black "Burbach, Anya Belle"]
[Result "1-0"]
[ECO "A47"]
[WhiteElo "1665"]
[BlackElo "1301"]
[PlyCount "55"]
[EventDate "2023.12.05"]
[EventType "swiss (rapid)"]
[EventRounds "13"]
[EventCountry "THA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 b6 4. e3 Bb7 5. Nbd2 Ne4 6. Bd3 f5 7. Bxe4 fxe4 8. Ng5 g6 9. Ngxe4 Bg7 10. Bg5 Qc8 11. 0-0 0-0 12. Qg4 Qe8 13. Qh4 Bxe4 14. Nxe4 d5 15. Nf6+ Bxf6 16. Bxf6 Nd7 17. Bg5 Qf7 18. Rae1 Nf6 19. f3 c5 20. c3 Rac8 21. Rf2 Nh5 22. g4 Nf6 23. e4 Nd7 24. exd5 Rce8 25. d6 Kh8 26. Be7 Rg8 27. g5 Rc8 28. Qe4 1-0

[Event "THA-ch Rapid"]
[Site "Bangkok"]
[Date "2023.12.07"]
[Round "13"]
[White "Wiwarin, Piyapon"]
[Black "Khumnorkaew, Tupfah"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1665"]
[BlackElo "1897"]
[PlyCount "83"]
[EventDate "2023.12.05"]
[EventType "swiss (rapid)"]
[EventRounds "13"]
[EventCountry "THA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 e6 3. Nd2 d5 4. e3 c5 5. c3 Bd6 6. Bg3 Qc7 7. Ngf3 Nbd7 8. Bb5 0-0 9. 0-0 e5 10. dxe5 Nxe5 11. Nxe5 Bxe5 12. Nf3 Bxg3 13. hxg3 Bg4 14. Qa4 a6 15. Bd3 Rad8 16. Qc2 Rfe8 17. Rac1 b5 18. Bf5 Bxf5 19. Qxf5 Qe7 20. Rfd1 Qe4 21. Qf4 h6 22. Rd2 Qe6 23. Rcd1 Ne4 24. Re2 Rd7 25. g4 g5 26. Qf5 Qxf5 27. gxf5 h5 28. Nh2 Re5 29. g4 Kg7 30. f4 Re8 31. fxg5 hxg4 32. Nxg4 Nxg5 33. Rg2 f6 34. Kf2 Rh8 35. Nh2 Kf7 36. Nf3 Ne4+ 37. Ke2 Rdd8 38. Rg4 a5 39. Rdg1 Rdg8 40. Rg6 b4 41. Kd3 Nd6 42. cxb4 0-1

[Event "THA-ch Rapid"]
[Site "Bangkok"]
[Date "2023.12.07"]
[Round "12"]
[White "Wongsawan, Thoetsak"]
[Black "Wiwarin, Piyapon"]
[Result "0-1"]
[ECO "E73"]
[WhiteElo "1745"]
[BlackElo "1665"]
[PlyCount "78"]
[EventDate "2023.12.05"]
[EventType "swiss (rapid)"]
[EventRounds "13"]
[EventCountry "THA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Be3 Na6 7. g4 c5 8. d5 Qb6 9. Rb1 Nxg4 10. Bxg4 Bxg4 11. f3 Bd7 12. Nge2 Qa5 13. Qd2 Rab8 14. 0-0 b5 15. cxb5 Bxb5 16. Nxb5 Qxd2 17. Bxd2 Rxb5 18. b3 Rfb8 19. Rbc1 Nb4 20. Bxb4 Rxb4 21. Rc2 a5 22. Nc3 c4 23. Ne2 cxb3 24. axb3 Rxb3 25. Rc7 R3b7 26. Rfc1 Bf6 27. Kf2 Rxc7 28. Rxc7 Ra8 29. Ke3 a4 30. Nc1 Kg7 31. Kd3 Bb2 32. Na2 Kf6 33. f4 a3 34. Kc2 Ra4 35. e5+ dxe5 36. fxe5+ Bxe5 37. Rc6+ Kf5 38. Kb3 Ra5 39. Nb4 Bd6 0-1

[Event "THA-ch Rapid"]
[Site "Bangkok"]
[Date "2023.12.06"]
[Round "9"]
[White "Chuersakul, Sarocha"]
[Black "Wiwarin, Piyapon"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "1770"]
[BlackElo "1665"]
[PlyCount "53"]
[EventDate "2023.12.05"]
[EventType "swiss (rapid)"]
[EventRounds "13"]
[EventCountry "THA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 e6 5. 0-0 Nf6 6. c4 Bd6 7. Nc3 0-0 8. Bg5 dxc4 9. Bxf6 Qxf6 10. Ne4 Qe7 11. dxc5 Bxc5 12. Qa4 f5 13. Ned2 e5 14. Nxc4 e4 15. Ne1 Be6 16. Nc2 Rad8 17. Rad1 Nd4 18. Nxd4 Rxd4 19. Rxd4 Bxd4 20. e3 Bc5 21. Rd1 Rd8 22. Rxd8+ Qxd8 23. Bf1 a6 24. b4 Be7 25. a3 Bf6 26. Na5 Qc7 27. Qe8# 1-0

[Event "THA-ch Rapid"]
[Site "Bangkok"]
[Date "2023.12.06"]
[Round "6"]
[White "Kulpruethanon, Thanadon"]
[Black "Wiwarin, Piyapon"]
[Result "1-0"]
[ECO "D78"]
[WhiteElo "2187"]
[BlackElo "1665"]
[PlyCount "63"]
[EventDate "2023.12.05"]
[EventType "swiss (rapid)"]
[EventRounds "13"]
[EventCountry "THA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 0-0 5. Bg2 d5 6. 0-0 Re8 7. c4 c6 8. d4 Bf5 9. e3 Nbd7 10. Qe2 Ne4 11. Rd1 Ndf6 12. Ne5 h5 13. f3 Nd6 14. Nc3 e6 15. e4 dxe4 16. fxe4 Bg4 17. Nxg4 Nxg4 18. h3 Nh6 19. c5 Nc8 20. e5 Qg5 21. Ne4 Qd8 22. Bc1 Nf5 23. Bg5 Qa5 24. g4 hxg4 25. hxg4 Nfe7 26. Nf6+ Kf8 27. Qe3 Nd5 28. Qh3 Qc3 29. Qh7 Bxf6 30. exf6 Nxf6 31. Bxf6 Qe3+ 32. Kh1 1-0

[Event "THA-ch Rapid"]
[Site "Bangkok"]
[Date "2023.12.06"]
[Round "5"]
[White "Wiwarin, Piyapon"]
[Black "Buakird, Apichit"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "1665"]
[BlackElo "1883"]
[PlyCount "85"]
[EventDate "2023.12.05"]
[EventType "swiss (rapid)"]
[EventRounds "13"]
[EventCountry "THA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Qc2 Be7 7. g4 dxc4 8. Bxc4 Nd5 9. a3 0-0 10. Bd3 h6 11. h4 c5 12. Bd2 b6 13. Nxd5 exd5 14. g5 h5 15. 0-0-0 Kh8 16. Rdg1 Bb7 17. Bc3 Rc8 18. g6 fxg6 19. Ng5 Nf6 20. Ne6 Qd6 21. Nxf8 Bxf8 22. Rxg6 cxd4 23. exd4 Qf4+ 24. Kb1 Ne4 25. Bxe4 dxe4 26. d5 Bxd5 27. Bxg7+ Bxg7 28. Qxc8+ Kh7 29. Rhg1 Bh6 30. Rg8 Qf6 31. R1g6 Qxg6 32. Rxg6 Kxg6 33. Qd7 Bf7 34. Qxa7 Bg7 35. Qxb6+ Bf6 36. a4 Kg7 37. a5 Bxh4 38. a6 Bg6 39. Qd4+ Bf6 40. Qd7+ Kh6 41. Ka2 Bh4 42. a7 Bxf2 43. a8Q 1-0

[Event "THA-ch Rapid"]
[Site "Bangkok"]
[Date "2023.12.06"]
[Round "8"]
[White "Wiwarin, Piyapon"]
[Black "Laohawirapap, Prin"]
[Result "0-1"]
[ECO "E93"]
[WhiteElo "1665"]
[BlackElo "2332"]
[PlyCount "74"]
[EventDate "2023.12.05"]
[EventType "swiss (rapid)"]
[EventRounds "13"]
[EventCountry "THA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 Nbd7 7. Be3 e5 8. d5 Ng4 9. Bg5 f6 10. Bh4 Nh6 11. Nd2 a5 12. f3 Nf7 13. 0-0 Bh6 14. Bf2 f5 15. b3 b6 16. a3 Nc5 17. Rb1 Bd7 18. b4 axb4 19. axb4 Na4 20. Qc2 Nxc3 21. Qxc3 Bf4 22. Be3 Bxe3+ 23. Qxe3 f4 24. Qc3 g5 25. Ra1 Qe7 26. Rxa8 Rxa8 27. Ra1 Rxa1+ 28. Qxa1 h5 29. Qa7 Qd8 30. Nb3 g4 31. fxg4 hxg4 32. g3 f3 33. Bd3 Qg5 34. Kf2 Qh6 35. Qxc7 Qxh2+ 36. Ke3 Qxg3 37. Qxd7 Qe1+ 0-1

[Event "THA-ch Rapid"]
[Site "Bangkok"]
[Date "2023.12.06"]
[Round "7"]
[White "Wiwarin, Piyapon"]
[Black "Niramitpattanakoson, Ditsapat"]
[Result "1-0"]
[ECO "E40"]
[WhiteElo "1665"]
[BlackElo "1645"]
[PlyCount "111"]
[EventDate "2023.12.05"]
[EventType "swiss (rapid)"]
[EventRounds "13"]
[EventCountry "THA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Bxc3+ 5. bxc3 c5 6. f4 Qa5 7. Qc2 Nc6 8. Bd2 0-0 9. Bd3 d5 10. Rb1 a6 11. Nf3 dxc4 12. Bxc4 b5 13. Bd3 c4 14. Be2 Bb7 15. Ng5 h6 16. Ne4 Nxe4 17. Qxe4 Qc7 18. Qc2 Ne7 19. 0-0 f5 20. Bf3 Rf6 21. e4 Rc8 22. e5 Rg6 23. Bc1 Nd5 24. Qd2 h5 25. Bxh5 Rh6 26. Bf3 Qe7 27. g3 Bc6 28. Qg2 Nxc3 29. Bxc6 Nxb1 30. d5 Qc5+ 31. Kh1 Nc3 32. Bd7 Rd8 33. dxe6 Nd5 34. Rd1 Ne7 35. Qf3 c3 36. Be3 Qc7 37. Qf2 c2 38. Rc1 Rxd7 39. exd7 Rc6 40. Qd2 Qd8 41. e6 Rxe6 42. Rxc2 Kf7 43. Rc5 g6 44. Kg2 Nc6 45. Kf2 Ke7 46. Rd5 Nb8 47. Bc5+ Kf7 48. Ba7 Nc6 49. Bc5 Nb8 50. Qd4 Nc6 51. Qd2 Kg7 52. Rd6 Kf7 53. Rxe6 Kxe6 54. Qd6+ Kf7 55. Qxc6 Qh8 56. Qd5+ 1-0

[Event "THA-ch Rapid"]
[Site "Bangkok"]
[Date "2023.12.05"]
[Round "4"]
[White "Burbach, Brunel Baron"]
[Black "Wiwarin, Piyapon"]
[Result "0-1"]
[ECO "A03"]
[WhiteElo "1825"]
[BlackElo "1665"]
[PlyCount "56"]
[EventDate "2023.12.05"]
[EventType "swiss (rapid)"]
[EventRounds "13"]
[EventCountry "THA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 Bf5 3. e3 Nd7 4. f4 Ngf6 5. Nf3 e6 6. Be2 Bd6 7. 0-0 0-0 8. d4 Ne4 9. Nbd2 Qf6 10. Ne5 Bxe5 11. fxe5 Qh6 12. Rf3 f6 13. Nxe4 dxe4 14. Rg3 Rad8 15. exf6 Nxf6 16. Qe1 g5 17. h3 Qg6 18. Qa5 b6 19. Qxa7 Rf7 20. Qa4 h5 21. c4 h4 22. Rg4 Bxg4 23. hxg4 Qh6 24. Kh2 h3 25. g3 Nxg4+ 26. Bxg4 Rf2+ 27. Kh1 Qf6 28. Bxh3 Qf3+ 0-1

[Event "THA-ch Rapid"]
[Site "Bangkok"]
[Date "2023.12.05"]
[Round "2"]
[White "Kosaisoonthorn, Marwin"]
[Black "Wiwarin, Piyapon"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1334"]
[BlackElo "1665"]
[PlyCount "98"]
[EventDate "2023.12.05"]
[EventType "swiss (rapid)"]
[EventRounds "13"]
[EventCountry "THA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. Nf3 Nf6 6. c3 g6 7. 0-0 Bg7 8. h3 0-0 9. Re1 Bf5 10. Bf4 Re8 11. Ne5 Rc8 12. Bxf5 gxf5 13. Nd2 e6 14. f3 Nh5 15. Bh2 f4 16. Nxc6 bxc6 17. Nb3 Qg5 18. Nc5 Bf8 19. Nd3 f6 20. Qd2 Bd6 21. Re2 Re7 22. Rae1 Rce8 23. b4 e5 24. Nf2 Qg6 25. Qd3 Qxd3 26. Nxd3 e4 27. fxe4 dxe4 28. Nf2 f5 29. Rb1 Rg7 30. Kh1 Be7 31. b5 c5 32. b6 axb6 33. Rxb6 cxd4 34. cxd4 Rc8 35. Rb1 Bh4 36. a4 Bg3 37. a5 Bxh2 38. Kxh2 Rd7 39. Rb5 Ng3 40. Ra2 Rc1 41. a6 Nf1+ 42. Kg1 Ng3+ 43. Kh2 Nf1+ 44. Kg1 Ne3+ 45. Kh2 Rg7 46. Nxe4 fxe4 47. a7 Nf1+ 48. Kg1 Ng3+ 49. Kf2 Rf1# 0-1

[Event "THA-ch Rapid"]
[Site "Bangkok"]
[Date "2023.12.05"]
[Round "1"]
[White "Wiwarin, Piyapon"]
[Black "Botkate, Chanaporn"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1665"]
[PlyCount "59"]
[EventDate "2023.12.05"]
[EventType "swiss (rapid)"]
[EventRounds "13"]
[EventCountry "THA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Bf5 3. Nc3 e6 4. e3 Nf6 5. f3 Bd6 6. Nge2 0-0 7. Qd2 Nh5 8. Bxd6 Qxd6 9. g4 Bxg4 10. fxg4 Nf6 11. g5 Nh5 12. 0-0-0 Nc6 13. Nf4 Nxf4 14. exf4 Ne7 15. Bd3 c6 16. Qf2 Ng6 17. Ne2 a5 18. h4 h5 19. Qf3 b5 20. Qxh5 b4 21. Bxg6 fxg6 22. Qxg6 a4 23. h5 a3 24. b3 Rf5 25. h6 Rf7 26. h7+ Kh8 27. Qxf7 Rf8 28. Qg6 Rc8 29. f5 exf5 30. Qxd6 1-0

[Event "THA-ch Rapid"]
[Site "Bangkok"]
[Date "2023.12.05"]
[Round "3"]
[White "Wiwarin, Piyapon"]
[Black "Pornariyasombat, Atippat"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1665"]
[BlackElo "2001"]
[PlyCount "86"]
[EventDate "2023.12.05"]
[EventType "swiss (rapid)"]
[EventRounds "13"]
[EventCountry "THA"]
[SourceTitle "CB50_2023"]
[SourceDate "2023.12.13"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.13"]
[SourceQuality "1"]

1. d4 g6 2. e4 Bg7 3. Nc3 d6 4. Be3 a6 5. Qd2 Nf6 6. f3 b5 7. g4 Bb7 8. Bd3 Nbd7 9. h4 c5 10. h5 cxd4 11. Bxd4 Nxh5 12. Bxg7 Nxg7 13. Rh6 Qb6 14. Nge2 Ne5 15. Rh3 0-0-0 16. 0-0-0 Ne6 17. Nd5 Bxd5 18. exd5 Nc5 19. Be4 Nxe4 20. fxe4 Kb7 21. g5 Rc8 22. Kb1 Qf2 23. Nd4 Qxd2 24. Rxd2 f6 25. Rdh2 h5 26. gxh6 Ng4 27. Rg2 Rxh6 28. Rxh6 Nxh6 29. Rxg6 Rg8 30. Rxg8 Nxg8 31. c3 Kc7 32. Kc2 Nh6 33. Nc6 e6 34. Nb4 a5 35. Nd3 exd5 36. exd5 Ng4 37. Nf4 f5 38. Kd3 Kb6 39. Kd4 Ne5 40. b3 Nf3+ 41. Ke3 Ne5 42. Kd4 Nf3+ 43. Ke3 Ne5 1/2-1/2

[Event "Bangkok Big Rook op"]
[Site "Bangkok"]
[Date "2023.05.07"]
[Round "6"]
[White "Nonles, Ronald"]
[Black "Wiwarin, Piyapon"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "2044"]
[BlackElo "1792"]
[PlyCount "93"]
[EventDate "2023.05.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "THA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 e5 7. Be3 Ng4 8. Bg5 f6 9. Bd2 Nc6 10. d5 Ne7 11. h3 Nh6 12. 0-0 Nf7 13. Ne1 f5 14. Nd3 Kh8 15. Rc1 Ng8 16. c5 Nf6 17. f3 f4 18. Nb5 a6 19. Na3 g5 20. cxd6 cxd6 21. Nc4 b5 22. Ba5 Qe7 23. Nb6 Qa7 24. Kh2 Rb8 25. Nxc8 Rbxc8 26. Nb4 h5 27. Qd3 Rxc1 28. Rxc1 Qf2 29. Nc6 Nh6 30. Be1 Qb6 31. Ne7 Rf7 32. Rc6 Qa7 33. Nc8 Qd7 34. Nxd6 Rf8 35. Rxa6 Rb8 36. Qc3 Bf8 37. Qxe5 Qg7 38. Bc3 b4 39. Bd4 Be7 40. Nf5 Nxf5 41. Qxb8+ Kh7 42. Bxf6 Bxf6 43. exf5 g4 44. Ra7 g3+ 45. Kh1 Be7 46. Qe8 Qd4 47. Rxe7+ 1-0

[Event "Bangkok Big Rook op"]
[Site "Bangkok"]
[Date "2023.05.07"]
[Round "7"]
[White "Wiwarin, Piyapon"]
[Black "Chiravanich, Pathee"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "1792"]
[BlackElo "1569"]
[PlyCount "156"]
[EventDate "2023.05.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "THA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Bd6 6. g4 Nxg4 7. Rg1 Nxh2 8. Nxh2 Bxh2 9. Rxg7 Qf6 10. Qg4 Bd6 11. Rg8+ Bf8 12. cxd5 Rxg8 13. Qxg8 exd5 14. Qxh7 Bf5 15. Qh5 Nd7 16. Bd2 0-0-0 17. 0-0-0 Bg6 18. Qe2 Qf5 19. Be1 Bb4 20. a3 Bxc3 21. Bxc3 Bh5 22. Qd3 Qxf2 23. Be1 Qf3 24. Rd2 Bg6 25. e4 Qxe4 26. Qxe4 Bxe4 27. Rf2 f5 28. Bh3 Rf8 29. Bb4 Rf7 30. Bd6 Nb6 31. b3 Kd7 32. Bb8 a6 33. Kd2 Ke6 34. Ke3 Nd7 35. Bg3 Rg7 36. Bf4 Nf6 37. Rh2 Rg1 38. Kd2 Ra1 39. a4 Ra2+ 40. Kc3 Ra1 41. Kb4 b6 42. Bc7 a5+ 43. Kc3 b5 44. Bxa5 bxa4 45. bxa4 Rxa4 46. Bb4 Ra1 47. Bc5 Rg1 48. Kb4 Rg6 49. Ra2 Rg3 50. Bf1 f4 51. Ra6 f3 52. Rxc6+ Kf5 53. Bd6 Rg1 54. Bh3+ Ng4 55. Rc8 f2 56. Be5 Kg5 57. Rg8+ Bg6 58. Rf8 Bf5 59. Rg8+ Kh6 60. Rh8+ Kg6 61. Kc5 Ne3 62. Rf8 Rh1 63. Bg3 f1Q 64. Bxf1 Rxf1 65. Re8 Be4 66. Be5 Rc1+ 67. Kd6 Nf5+ 68. Kd7 Rc4 69. Re6+ Kg5 70. Re8 Nxd4 71. Rg8+ Kh4 72. Bf6+ Kh3 73. Kd6 Rc6+ 74. Ke7 Nf5+ 75. Kd7 Rxf6 76. Kc7 d4 77. Rd8 Rc6+ 78. Kb8 Rd6 0-1

[Event "Bangkok Big Rook op"]
[Site "Bangkok"]
[Date "2023.05.06"]
[Round "4"]
[White "Marin, Sam"]
[Black "Wiwarin, Piyapon"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2046"]
[BlackElo "1792"]
[PlyCount "49"]
[EventDate "2023.05.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "THA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. b3 a5 2. Bb2 a4 3. e4 e6 4. bxa4 Rxa4 5. Nc3 Ra5 6. Nf3 d5 7. Bd3 Nf6 8. e5 Nfd7 9. 0-0 Nc5 10. Be2 c6 11. d4 Na4 12. Nxa4 Rxa4 13. c4 Qa5 14. Qc2 Ba3 15. Bc3 Qa7 16. Bd2 0-0 17. Ng5 g6 18. Qb3 f6 19. exf6 Rxf6 20. Qh3 b6 21. cxd5 cxd5 22. Bb5 Rxd4 23. Bc3 Rdf4 24. Be5 Na6 25. Qxa3 1-0

[Event "Bangkok Big Rook op"]
[Site "Bangkok"]
[Date "2023.05.06"]
[Round "5"]
[White "Wiwarin, Piyapon"]
[Black "Lozano, Arvie"]
[Result "1-0"]
[ECO "E44"]
[WhiteElo "1792"]
[BlackElo "2019"]
[PlyCount "99"]
[EventDate "2023.05.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "THA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nge2 Bb7 6. a3 Bxc3+ 7. Nxc3 0-0 8. d5 exd5 9. cxd5 d6 10. Be2 Nbd7 11. 0-0 Re8 12. b3 Nc5 13. Bb2 Nce4 14. Nxe4 Nxe4 15. Rc1 Qg5 16. Rxc7 Bxd5 17. Bf3 Rf8 18. h4 Qd8 19. Qxd5 Qxc7 20. Bxe4 Rac8 21. Qf5 f6 22. Qxh7+ Kf7 23. Bd5+ Ke8 24. Rc1 Qd7 25. Rxc8+ Qxc8 26. Qxg7 Qd7 27. Qg6+ Kd8 28. Bxf6+ Kc7 29. Qg7 Qxg7 30. Bxg7 Rf5 31. e4 Rh5 32. Bf6 Rh6 33. Bg5 Rh8 34. f4 b5 35. f5 Kd7 36. Be6+ Ke8 37. f6 a5 38. Kf2 a4 39. b4 Rh7 40. f7+ Kf8 41. Ke3 Rh8 42. Kd4 Rh7 43. Kd5 Rh8 44. Kxd6 Kg7 45. e5 Ra8 46. Bf6+ Kg6 47. Ke7 Ra7+ 48. Ke8 Kh5 49. g4+ Kg6 50. Bf5+ 1-0

[Event "Bangkok Big Rook op"]
[Site "Bangkok"]
[Date "2023.05.05"]
[Round "2"]
[White "Ko, Ko Ohn"]
[Black "Wiwarin, Piyapon"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2180"]
[BlackElo "1792"]
[PlyCount "89"]
[EventDate "2023.05.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "THA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e6 2. c4 d5 3. cxd5 exd5 4. exd5 Nf6 5. Nc3 Nxd5 6. Bc4 Be6 7. Qb3 Nb6 8. Bxe6 Qe7 9. Nb5 Na6 10. Nf3 Qxe6+ 11. Qxe6+ fxe6 12. 0-0 Bd6 13. Re1 Kd7 14. a3 Nc5 15. d4 Nb3 16. Rb1 Nd5 17. Bg5 Rhf8 18. Ne5+ Bxe5 19. dxe5 a6 20. Nc3 Nxc3 21. bxc3 Na5 22. Rbd1+ Kc6 23. Rd4 Rf7 24. Red1 b5 25. a4 Nc4 26. Ra1 a5 27. Rb1 Na3 28. axb5+ Kc5 29. Rb3 Nxb5 30. Ra4 Kc6 31. Be3 Na7 32. Rxa5 Rd8 33. Kf1 Nc8 34. Rc5+ Kd7 35. Rb7 Ke8 36. Rcxc7 Rxc7 37. Rxc7 Kf8 38. Bc5+ Kg8 39. Ke2 h6 40. Ke3 Kh7 41. Ke4 Kg6 42. g4 Rh8 43. f4 h5 44. f5+ exf5+ 45. gxf5+ 1-0

[Event "Bangkok Big Rook op"]
[Site "Bangkok"]
[Date "2023.05.05"]
[Round "3"]
[White "Wiwarin, Piyapon"]
[Black "Thaipisuttikul, Ilada"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "1792"]
[PlyCount "51"]
[EventDate "2023.05.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "THA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 e6 4. Nf3 dxc4 5. a4 a5 6. e3 b5 7. axb5 Bb4 8. Bxc4 Ne7 9. 0-0 0-0 10. bxc6 Nbxc6 11. Bd3 h6 12. Qe2 e5 13. Nxe5 Nxe5 14. dxe5 Bxc3 15. bxc3 Bb7 16. c4 Ng6 17. Bb2 Bxg2 18. Kxg2 Nh4+ 19. Kh1 Ra6 20. Be4 a4 21. Rg1 a3 22. Bd4 g6 23. Qg4 a2 24. f4 Ra3 25. f5 g5 26. Qxh4 1-0

[Event "THA-ch 46th"]
[Site "Bangkok"]
[Date "2023.04.16"]
[Round "9"]
[White "Chunsukon, Viritpol"]
[Black "Wiwarin, Piyapon"]
[Result "1-0"]
[ECO "B14"]
[WhiteElo "1492"]
[BlackElo "1838"]
[PlyCount "111"]
[EventDate "2023.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "THA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nc6 5. Nf3 Nf6 6. Nc3 e6 7. Be2 Be7 8. 0-0 0-0 9. Bf4 a6 10. c5 Nd7 11. a3 b6 12. b4 bxc5 13. bxc5 Qa5 14. Qa4 Qxa4 15. Nxa4 f6 16. Be3 e5 17. Rab1 e4 18. Nd2 f5 19. f4 Bf6 20. Nb3 Rb8 21. Rfd1 Rf7 22. Nc3 Ne7 23. Na5 Rxb1 24. Nxb1 Nb8 25. Nc3 Be6 26. Na4 h6 27. Nb6 Nec6 28. Nxc6 Nxc6 29. Bxa6 Ra7 30. Bb5 Rxa3 31. Bxc6 Rxe3 32. Bxd5 Kf7 33. Bxe6+ Kxe6 34. d5+ Kf7 35. Nc4 Rc3 36. Nd6+ Kf8 37. c6 g6 38. Nb5 Rc5 39. c7 Ke7 40. d6+ Kd7 41. Na7 g5 42. c8Q+ Rxc8 43. Nxc8 Kxc8 44. d7+ Kd8 45. fxg5 hxg5 46. h3 f4 47. Kf2 Be7 48. Ke2 Bb4 49. Rd4 Bc5 50. Rxe4 Kxd7 51. Kf3 Kd6 52. Kg4 Kd5 53. Re8 Be3 54. Kxg5 Kd4 55. Kg4 Kd3 56. Kf3 1-0

[Event "THA-ch 46th"]
[Site "Bangkok"]
[Date "2023.04.15"]
[Round "7"]
[White "Pattanak, Wittawat"]
[Black "Wiwarin, Piyapon"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1354"]
[BlackElo "1838"]
[PlyCount "70"]
[EventDate "2023.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "THA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Bf4 Rc8 7. Be2 Qb6 8. b3 cxd4 9. cxd4 Bb4+ 10. Nbd2 Nxd4 11. Nxd4 Qxd4 12. Be3 Qxe5 13. 0-0 Qb8 14. Nf3 Bd6 15. Re1 Nf6 16. h3 0-0 17. Bd3 e5 18. Bg5 e4 19. Bxf6 gxf6 20. Bb1 exf3 21. Qd3 Bh2+ 22. Kh1 fxg2+ 23. Kxg2 f5 24. Qf3 Be5 25. Bxf5 Bxf5 26. Qxf5 Bxa1 27. Rxa1 Qd6 28. Qf3 Rfe8 29. Rd1 Rcd8 30. Kh1 Re6 31. h4 Rg6 32. Rd4 Qe5 33. Qc3 Qe2 34. Qc1 Qf3+ 35. Kh2 Qg2# 0-1

[Event "THA-ch 46th"]
[Site "Bangkok"]
[Date "2023.04.14"]
[Round "6"]
[White "Wiwarin, Piyapon"]
[Black "Kaenratana, Punyathon"]
[Result "0-1"]
[ECO "C09"]
[WhiteElo "1838"]
[BlackElo "1426"]
[PlyCount "152"]
[EventDate "2023.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "THA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 e6 2. e4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Bb5 a6 7. Bxc6+ bxc6 8. 0-0 Nf6 9. Re1+ Be7 10. dxc5 0-0 11. b4 Bf5 12. Nd4 Bd7 13. Bb2 Re8 14. Re3 Ng4 15. Rg3 f5 16. h3 Bh4 17. hxg4 Bxg3 18. fxg3 fxg4 19. Qf1 Qb8 20. a3 Qxg3 21. Qf2 Qe5 22. Nf1 Rf8 23. Qe1 Qg5 24. Qg3 Rae8 25. Re1 Qf6 26. Ne3 h5 27. Rf1 Qg5 28. Rxf8+ Rxf8 29. Ne2 Re8 30. Bd4 Re4 31. c3 h4 32. Qf2 Kh7 33. g3 hxg3 34. Qxg3 Be8 35. Kf2 Bd7 36. Ke1 Qh6 37. Kd2 Qh1 38. Qc7 Re7 39. Qa7 Qa1 40. Qxa6 Qb2+ 41. Kd1 Qb1+ 42. Nc1 Qg6 43. Qd3 Re4 44. Kd2 g3 45. Ne2 g2 46. Ng1 Qg3 47. Nc2 Qf4+ 48. Be3 Qf1 49. Nd4 Bg4 50. Nde2 Qa1 51. c4 Qb2+ 52. Kd1 Qa1+ 53. Bc1 Kg8 54. Qg3 Qd4+ 55. Kc2 Bxe2 56. Qxg2 Bd3+ 57. Kd1 Bf1+ 58. Qd2 Qxg1 59. Qc3 Bxc4+ 60. Kc2 Qf2+ 61. Bd2 Re2 62. a4 Qf5+ 63. Kb2 g5 64. b5 cxb5 65. a5 Qe5 66. Qxe5 Rxe5 67. a6 Re6 68. a7 Ra6 69. Bxg5 Rxa7 70. Kc3 Rc7 71. Kd4 Kf7 72. Bf4 Rc6 73. Bd6 Ke6 74. Bf8 b4 75. Ke3 Kf7 76. Bd6 Rxd6 0-1

[Event "THA-ch 46th"]
[Site "Bangkok"]
[Date "2023.04.13"]
[Round "3"]
[White "Kulpruethanon, Thanadon"]
[Black "Wiwarin, Piyapon"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "2244"]
[BlackElo "1838"]
[PlyCount "93"]
[EventDate "2023.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "THA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Be3 e5 7. d5 Na6 8. g4 Nc5 9. f3 a5 10. h4 h5 11. g5 Ne8 12. Qd2 Qe7 13. 0-0-0 c6 14. Bxc5 dxc5 15. d6 Qd7 16. Na4 Qd8 17. d7 Nc7 18. dxc8Q Rxc8 19. Qxd8 Rfxd8 20. Nxc5 Rxd1+ 21. Bxd1 b5 22. Rh2 Bf8 23. Nd7 Ne6 24. Nxf8 Kxf8 25. Nh3 b4 26. b3 Ke7 27. Rf2 Rd8 28. Bc2 Nd4 29. f4 exf4 30. Nxf4 Kd6 31. Nd3 Re8 32. e5+ Ke7 33. Nc5 Ne6 34. Nxe6 Kxe6 35. Rf6+ Kxe5 36. Rxf7 Rd8 37. Rf1 Rd4 38. Rh1 Rg4 39. Bxg6 Rg2 40. Bc2 Kd4 41. Rd1+ Kc5 42. Kb1 a4 43. bxa4 Kxc4 44. Be4 Rg3 45. Bxc6 Kc3 46. Bb5 b3 47. Rd3+ 1-0

[Event "THA-ch 46th"]
[Site "Bangkok"]
[Date "2023.04.13"]
[Round "4"]
[White "Wiwarin, Piyapon"]
[Black "Mokawattana, Wongsathorn"]
[Result "0-1"]
[ECO "D87"]
[WhiteElo "1838"]
[BlackElo "1616"]
[PlyCount "120"]
[EventDate "2023.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "THA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 0-0 9. 0-0 Nc6 10. Be3 Qc7 11. Rc1 b6 12. Qd2 Rd8 13. Bh6 Bb7 14. Bxg7 Kxg7 15. f4 Na5 16. Bd3 cxd4 17. cxd4 Qd7 18. f5 Nc6 19. e5 f6 20. exf6+ exf6 21. fxg6 hxg6 22. Qf4 Qd6 23. Qg4 Ne7 24. Bxg6 Nxg6 25. Nf4 Be4 26. Rc7+ Kg8 27. Nxg6 Qxc7 28. Qxe4 Qd6 29. Qg4 Qxd4+ 30. Qxd4 Rxd4 31. Rxf6 Rd2 32. a4 Re8 33. h4 Rd4 34. a5 bxa5 35. Ra6 Kg7 36. h5 Re2 37. Rxa7+ Kh6 38. Rxa5 Rg4 39. Kf1 Rgxg2 40. Ra6 Rgf2+ 41. Kg1 Kxh5 42. Rb6 Rf5 43. Nh8 Re8 44. Rb2 Kh6 45. Rh2+ Kg7 46. Ra2 Rxh8 47. Ra6 Rh6 48. Ra7+ Kg6 49. Kg2 Rhh5 50. Kg3 Rhg5+ 51. Kh4 Rf4+ 52. Kh3 Rb5 53. Kg3 Rc4 54. Kf3 Rb3+ 55. Ke2 Rc2+ 56. Kd1 Rh2 57. Kc1 Rg3 58. Ra6+ Kf7 59. Ra7+ Ke8 60. Ra8+ Kd7 0-1

[Event "THA-ch 46th"]
[Site "Bangkok"]
[Date "2023.04.12"]
[Round "1"]
[White "Vongrungrot, Kritin"]
[Black "Wiwarin, Piyapon"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "1198"]
[BlackElo "1838"]
[PlyCount "72"]
[EventDate "2023.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "THA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 0-0 5. Bf4 d6 6. e3 Bg4 7. Be2 Nbd7 8. h3 Bxf3 9. Bxf3 c6 10. Bg3 Re8 11. 0-0 e5 12. Qd2 e4 13. Be2 Qe7 14. d5 Ne5 15. Rfd1 c5 16. Qc2 Rf8 17. Nxe4 Nxe4 18. Qxe4 f5 19. Qc2 g5 20. Qd2 Qf7 21. f4 gxf4 22. Bxf4 Qg6 23. Rab1 Rae8 24. b4 cxb4 25. Qxb4 Rf7 26. Rdc1 b6 27. a4 Bh6 28. Bxh6 Qxh6 29. Rb3 Rg7 30. Kh1 Rg3 31. Qb5 Re7 32. Rcc3 Rxh3+ 33. gxh3 Qxh3+ 34. Kg1 Rg7+ 35. Kf2 Qg3+ 36. Kf1 Qg1# 0-1

[Event "THA-ch 46th"]
[Site "Bangkok"]
[Date "2023.04.12"]
[Round "2"]
[White "Wiwarin, Piyapon"]
[Black "Jitwichian, Pataradit"]
[Result "1-0"]
[ECO "E40"]
[WhiteElo "1838"]
[BlackElo "1478"]
[PlyCount "57"]
[EventDate "2023.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "THA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Bxc3+ 5. bxc3 0-0 6. Bd3 d5 7. Qc2 b6 8. cxd5 exd5 9. Ne2 c5 10. Ng3 Nc6 11. Ba3 c4 12. Be2 Re8 13. 0-0 Qc7 14. Rae1 Bg4 15. f3 Bh5 16. Nxh5 Nxh5 17. e4 Ne7 18. e5 Nf4 19. g3 Nh3+ 20. Kg2 Qc8 21. Bxe7 Rxe7 22. f4 g5 23. f5 g4 24. Qd2 h5 25. f6 Rxe5 26. dxe5 d4 27. Qh6 Qc6+ 28. Bf3 gxf3+ 29. Rxf3 1-0

