[Event "NZL-ch Major op"]
[Site "Auckland"]
[Date "2019.01.22"]
[Round "9"]
[White "Gao, Hugh Zihuai"]
[Black "Chai, Jacob"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1442"]
[BlackElo "1019"]
[PlyCount "43"]
[EventDate "2019.01.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NZL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. f4 a6 4. a4 Nc6 5. g3 g6 6. Bg2 Bg7 7. Nf3 Nge7 8. d3 0-0 9. 0-0 d6 10. Qe1 b6 11. Bd2 Bb7 12. Rb1 Qc7 13. g4 h6 14. Qh4 Kh7 15. f5 exf5 16. gxf5 g5 17. Nxg5+ Kg8 18. f6 Ng6 19. Qh5 hxg5 20. fxg7 Rfd8 21. Bxg5 Re8 22. Bf6 1-0

[Event "NZL-ch Major op"]
[Site "Auckland"]
[Date "2019.01.21"]
[Round "8"]
[White "Chai, Jacob"]
[Black "Xu, Hannah"]
[Result "1/2-1/2"]
[ECO "D88"]
[WhiteElo "1019"]
[BlackElo "1077"]
[PlyCount "132"]
[EventDate "2019.01.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NZL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.05.31"]
[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 cxd4 9. cxd4 0-0 10. 0-0 Nc6 11. Be3 e6 12. Rb1 Qc7 13. Qd2 Bd7 14. Rfd1 Rfd8 15. Qb2 b6 16. Bf4 Qb7 17. Be3 Rac8 18. Rbc1 a6 19. f3 b5 20. Bb3 Na5 21. Nc3 Nxb3 22. Qxb3 Qb6 23. Na4 Qa5 24. Nc5 Bc6 25. a3 e5 26. dxe5 Bxe5 27. Qb4 Qxb4 28. axb4 Rxd1+ 29. Rxd1 Ra8 30. Bg5 a5 31. bxa5 Rxa5 32. Bh6 Ra1 33. Rxa1 Bxa1 34. Nb3 Bf6 35. Bf4 Bc3 36. Kf2 b4 37. Bd2 Ba4 38. Bxc3 bxc3 39. Nc1 Bd1 40. Ke1 c2 41. Kd2 Kg7 42. Nd3 Kf6 43. Ne1 Be2 44. Nxc2 Bf1 45. Ne3 Ba6 46. g3 Ke5 47. Ng4+ Ke6 48. Ke3 h5 49. Nf2 Kf6 50. f4 Ke6 51. Nd3 Kf6 52. Ne5 Ke6 53. Kd4 Bb7 54. Nd3 Ba8 55. Nc5+ Kf6 56. h4 Ke7 57. e5 f5 58. exf6+ Kxf6 59. Nd7+ Kf5 60. Ne5 Kf6 61. Kc5 Be4 62. Kd6 Bf5 63. Nd7+ Bxd7 64. Kxd7 Kf7 65. Kd6 Kf6 66. Kd7 Kf7 1/2-1/2

[Event "NZL-ch Major op"]
[Site "Auckland"]
[Date "2019.01.20"]
[Round "7"]
[White "Qin, James"]
[Black "Chai, Jacob"]
[Result "0-1"]
[ECO "B30"]
[BlackElo "1019"]
[PlyCount "128"]
[EventDate "2019.01.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NZL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Bc4 a6 4. d3 Nc6 5. Nc3 g6 6. b3 b5 7. Bxb5 axb5 8. Bb2 Bg7 9. Qe2 Nge7 10. 0-0-0 b4 11. Na4 Bxb2+ 12. Kxb2 0-0 13. h4 Ba6 14. h5 d5 15. exd5 Nxd5 16. Rh4 Qa5 17. Rdh1 Nf6 18. hxg6 fxg6 19. Ng5 h5 20. f3 Nd4 21. Qe5 Qd8 22. g4 Qd5 23. Qc7 Qxg5 24. gxh5 Nxh5 25. Nb6 Rab8 26. Nd7 Rb7 27. Qd6 Rd8 28. Qxa6 Rdxd7 29. Qa8+ Qd8 30. Qa6 Qb6 31. Qa8+ Rd8 32. Qa4 Qb5 33. Qxb5 Nxb5 34. Rg4 Rg7 35. f4 Rd4 36. Rgg1 Rxf4 37. Re1 Nd4 38. c3 bxc3+ 39. Kxc3 Kh7 40. b4 cxb4+ 41. Kxb4 Nc2+ 42. Kc5 Nxe1 43. Rxe1 Rf2 44. Rxe6 Rxa2 45. d4 Nf4 46. Re4 Rf7 47. d5 Nxd5 48. Rh4+ Kg7 49. Kxd5 Ra5+ 50. Kc6 Rf6+ 51. Kb7 Re5 52. Rc4 Re7+ 53. Rc7 Rxc7+ 54. Kxc7 g5 55. Kd7 Kf7 56. Kc8 Rd6 57. Kc7 Ke7 58. Kc8 Rd7 59. Kb8 Kd6 60. Kc8 Kc6 61. Kb8 Rc7 62. Ka8 Kb6 63. Kb8 Rc1 64. Ka8 Rc8# 0-1

[Event "NZL-ch Major op"]
[Site "Auckland"]
[Date "2019.01.19"]
[Round "6"]
[White "Chai, Jacob"]
[Black "Garland, Mana"]
[Result "0-1"]
[ECO "D06"]
[WhiteElo "1019"]
[BlackElo "1384"]
[PlyCount "82"]
[EventDate "2019.01.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NZL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.05.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 Bf5 3. Nc3 Nf6 4. Bf4 Nc6 5. e3 e6 6. Bd3 Bd6 7. Bxd6 cxd6 8. Bxf5 exf5 9. Nf3 dxc4 10. 0-0 0-0 11. d5 Nb4 12. a3 Nd3 13. b3 Ne5 14. Nxe5 dxe5 15. bxc4 e4 16. Qb3 Rb8 17. Rfd1 Ng4 18. h3 Ne5 19. d6 Nd7 20. Rac1 Re8 21. Nd5 Ne5 22. Qb5 Nd3 23. Ne7+ Kh8 24. Rc2 Qxd6 25. Nxf5 Qe5 26. Qd5 Qe6 27. Qxe6 Rxe6 28. Nd4 Ra6 29. Nb5 g6 30. f3 f5 31. g4 Rf8 32. fxe4 fxe4 33. Nc3 Rxa3 34. Nxe4 Ne5 35. Nc5 Rxe3 36. Nxb7 Rxh3 37. Kg2 Rff3 38. Re2 Rhg3+ 39. Kh1 Nxg4 40. Rc1 Rh3+ 41. Kg2 Rfg3+ 0-1

[Event "NZL-ch Major op"]
[Site "Auckland"]
[Date "2019.01.18"]
[Round "5"]
[White "Smith, Scott R"]
[Black "Chai, Jacob"]
[Result "1/2-1/2"]
[ECO "A15"]
[BlackElo "1019"]
[PlyCount "119"]
[EventDate "2019.01.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NZL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.05.31"]
[SourceQuality "1"]

1. b4 Nf6 2. Bb2 g6 3. Nf3 Bg7 4. e3 d6 5. c4 0-0 6. Nc3 Nbd7 7. Be2 e5 8. Qc2 b6 9. b5 Bb7 10. 0-0 a6 11. a4 axb5 12. axb5 c5 13. bxc6 Bxc6 14. Rxa8 Qxa8 15. Ra1 Qb7 16. d3 Ra8 17. Qb1 Nc5 18. e4 Nb3 19. Rxa8+ Qxa8 20. Nd5 Bxd5 21. cxd5 Nc5 22. Bc3 Qa3 23. Bb4 Qa7 24. Bxc5 bxc5 25. Qb5 Qc7 26. Qc6 Qxc6 27. dxc6 Ne8 28. Bd1 Bf6 29. Bb3 Bd8 30. h4 h6 31. g4 Nc7 32. g5 h5 33. Nd2 Nb5 34. Nc4 Bc7 35. Ne3 Nc3 36. Nd5 Nxd5 37. Bxd5 Kf8 38. Kg2 Ke7 39. f4 f6 40. gxf6+ Kxf6 41. Kf3 exf4 42. Kxf4 Bb8 43. Ke3 Ke5 44. Bf7 Kf6 45. Be8 g5 46. Bxh5 gxh4 47. Kf4 h3 48. Kg3 d5+ 49. Kxh3 dxe4 50. dxe4 Ke5 51. Bf3 Kd6 52. e5+ Kxe5 53. Kg2 Kd4 54. Kf2 Kd3 55. Ke1 c4 56. Be2+ Kc3 57. Kd1 Kb3 58. Bf3 c3 59. Bd5+ Kb2 60. Be4 1/2-1/2

[Event "NZL-ch Major op"]
[Site "Auckland"]
[Date "2019.01.17"]
[Round "4"]
[White "Chai, Jacob"]
[Black "Qin, Oscar Shu Xuan"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "1019"]
[BlackElo "1430"]
[PlyCount "68"]
[EventDate "2019.01.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NZL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.05.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bf4 dxc4 5. e3 b5 6. a4 b4 7. Na2 e6 8. Bxc4 a5 9. Nf3 Be7 10. 0-0 0-0 11. Nc1 Bb7 12. Nb3 Qb6 13. Ne5 Nbd7 14. h3 Rfd8 15. Qd3 Nxe5 16. Bxe5 Nd7 17. Bh2 c5 18. dxc5 Nxc5 19. Qc2 Be4 20. Qe2 Nxb3 21. Bxb3 Bd3 22. Qf3 Bxf1 23. Rxf1 Bf6 24. Qe2 Rd7 25. Bc2 Rad8 26. Be4 Rd2 27. Qb5 Qxb5 28. axb5 e5 29. b6 Rxb2 30. b7 b3 31. Rc1 Rbd2 32. Bf3 Rc2 33. Rb1 b2 34. Be4 Rc1+ 0-1

[Event "NZL-ch Major op"]
[Site "Auckland"]
[Date "2019.01.16"]
[Round "3"]
[White "Barry, Jacob"]
[Black "Chai, Jacob"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1221"]
[BlackElo "1019"]
[PlyCount "88"]
[EventDate "2019.01.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NZL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.05.31"]
[SourceQuality "1"]

1. Nf3 c5 2. e4 e6 3. Nc3 Nc6 4. Bb5 a6 5. Bxc6 bxc6 6. 0-0 d6 7. h3 Nf6 8. d4 cxd4 9. Nxd4 Bb7 10. Bg5 Be7 11. Qe2 0-0 12. Rad1 c5 13. e5 cxd4 14. exf6 Bxf6 15. Bxf6 Qxf6 16. Ne4 Qg6 17. f3 Bxe4 18. fxe4 e5 19. c3 dxc3 20. bxc3 Rfc8 21. Rf3 Rc6 22. Rdf1 f6 23. Kh2 Rac8 24. Rg3 Qf7 25. Rb1 h6 26. a4 Rc4 27. a5 Qc7 28. Qa2 Kh8 29. Rb3 Rxe4 30. Qc2 d5 31. Qd3 Qc4 32. Qc2 Qe2 33. Qb1 Qc4 34. Rb7 Rg8 35. Rb8 Qc7 36. Rb7 Qxa5 37. Rbxg7 Rxg7 38. Qb8+ Kh7 39. Rxg7+ Kxg7 40. Qb7+ Kg6 41. Qc8 Kg5 42. Qg8+ Kf4 43. Qg4+ Ke3 44. Qf3+ Kd2 0-1

[Event "NZL-ch Major op"]
[Site "Auckland"]
[Date "2019.01.15"]
[Round "2"]
[White "Chai, Jacob"]
[Black "Li, Rodney Xiang Rei"]
[Result "0-1"]
[ECO "E14"]
[WhiteElo "1019"]
[BlackElo "1446"]
[PlyCount "75"]
[EventDate "2019.01.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NZL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. e3 b6 5. Nf3 Bb7 6. Bd3 cxd4 7. exd4 d6 8. 0-0 Nbd7 9. Re1 Be7 10. b3 Rc8 11. Bb2 a6 12. Qc2 d5 13. cxd5 Nxd5 14. Qd2 N7f6 15. Bc4 0-0 16. Ne5 b5 17. Bxd5 Nxd5 18. Nxd5 Qxd5 19. f3 a5 20. Rac1 Bb4 21. Bc3 Bxc3 22. Rxc3 Rxc3 23. Qxc3 b4 24. Qc5 f6 25. Nd3 Rc8 26. Qxd5 Bxd5 27. Nf4 Kf7 28. Nxd5 exd5 29. Re2 Rc3 30. Kf2 Rd3 31. h3 Rxd4 32. Ke3 Rd1 33. Rd2 Rxd2 34. Kxd2 Ke6 35. Kd3 Ke5 36. g3 g5 37. f4+ gxf4 38. gxf4+ 0-1

[Event "NZL-ch Major op"]
[Site "Auckland"]
[Date "2019.01.14"]
[Round "1"]
[White "Mukkattu, Philip"]
[Black "Chai, Jacob"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "1560"]
[BlackElo "1019"]
[PlyCount "69"]
[EventDate "2019.01.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NZL"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2019.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 0-0 6. Nf3 e5 7. d5 c6 8. Be3 c5 9. Qd2 b6 10. Be2 Nbd7 11. Bh6 Bb7 12. Bxg7 Kxg7 13. 0-0 h5 14. Rad1 Nh7 15. Bd3 Qf6 16. Rfe1 Qe7 17. Nh2 Ndf6 18. Re3 Ng5 19. Rg3 Nfh7 20. h4 Nxe4 21. Nxe4 Nf6 22. Qg5 Rae8 23. Nxf6 Qxf6 24. Qxf6+ Kxf6 25. Re1 Kg7 26. Bb1 Ba6 27. b3 f5 28. Rg5 f4 29. Bxg6 Re7 30. Bxh5+ Kh6 31. Ng4+ Kh7 32. Bg6+ Kh8 33. Rh5+ Kg7 34. Rh7+ Kxg6 35. Rxe7 1-0

