[Event "Charlotte Spring IMC 2024"]
[Site "Charlotte"]
[Date "2024.03.31"]
[Round "9"]
[White "Posthuma, Joshua G"]
[Black "Melillo, Lucius"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2449"]
[BlackElo "2274"]
[PlyCount "93"]
[EventDate "2024.03.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. Nf3 c5 2. b3 Nc6 3. Bb2 Nf6 4. c4 g6 5. Bxf6 exf6 6. Nc3 Bg7 7. g3 f5 8. Bg2 0-0 9. 0-0 b6 10. Rc1 Bb7 11. e3 Ne7 12. d4 d6 13. Qd3 Qc7 14. Nb5 Qb8 15. dxc5 dxc5 16. Qd6 Qxd6 17. Nxd6 Bc6 18. Rfd1 Rad8 19. Ng5 Bxg2 20. Kxg2 Nc6 21. Nb7 Rb8 22. Rd7 Ne5 23. Rc7 Rbc8 24. Rxc8 Rxc8 25. Rd1 Rb8 26. Nd6 Rd8 27. Rd5 Bf8 28. Nde4 Rxd5 29. Nf6+ Kh8 30. Nxd5 h6 31. Nf3 Nd3 32. Nd2 Bd6 33. f4 Nb4 34. Nxb4 cxb4 35. Kf3 Kg7 36. e4 Bc5 37. exf5 gxf5 38. g4 Kg6 39. gxf5+ Kxf5 40. Nf1 Ke6 41. Ng3 f5 42. Ne2 Kf6 43. Nc1 Bd6 44. Nd3 Ke6 45. Ke3 Bc5+ 46. Kf3 Bd6 47. Ke3 1/2-1/2

[Event "Charlotte Spring IMC 2024"]
[Site "Charlotte"]
[Date "2024.03.31"]
[Round "8"]
[White "Wu, Sibo"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2142"]
[BlackElo "2449"]
[PlyCount "194"]
[EventDate "2024.03.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. d4 g6 2. Bf4 Bg7 3. Nc3 c5 4. e3 Nf6 5. Nf3 0-0 6. a4 d6 7. h3 Qa5 8. Qd2 cxd4 9. exd4 Nc6 10. Nb5 Qxd2+ 11. Bxd2 Bf5 12. Rc1 Rac8 13. Be2 a6 14. Na3 Nd5 15. c3 Nb6 16. Bd1 Be4 17. 0-0 Bxf3 18. gxf3 d5 19. b3 e6 20. Be2 Rfd8 21. Nc2 h5 22. Ne1 Nd7 23. Nd3 Ne7 24. b4 Nf5 25. b5 axb5 26. axb5 Nd6 27. Rb1 Nc4 28. Bf4 Ra8 29. Ra1 Rdc8 30. Rxa8 Rxa8 31. Nc5 Nxc5 32. dxc5 Be5 33. Bxe5 Nxe5 34. f4 Nd7 35. c6 bxc6 36. bxc6 Nc5 37. c4 dxc4 38. Rc1 Rc8 39. Bf3 Nb3 40. Rxc4 Nd2 41. Rc3 Nxf3+ 42. Rxf3 Rxc6 43. Kg2 Kg7 44. Kg3 Kf6 45. Rb3 Rc5 46. Ra3 Kf5 47. Rb3 Rd5 48. Re3 Rc5 49. Ra3 Rc4 50. Ra5+ Ke4 51. Re5+ Kd4 52. Ra5 Rc3+ 53. Kg2 Ke4 54. Ra4+ Kf5 55. Rb4 Ra3 56. Rc4 Rb3 57. Ra4 Rd3 58. Rb4 Kf6 59. Rb5 Rd5 60. Rb4 Ra5 61. Kg3 Kf5 62. Rc4 h4+ 63. Kg2 Ra3 64. Rb4 Rd3 65. Ra4 Kf6 66. Ra5 Rd5 67. Ra4 Rf5 68. Rb4 Ke7 69. Rd4 Rd5 70. Ra4 f5 71. Ra7+ Rd7 72. Ra6 Kf6 73. Ra8 Rd4 74. Kf3 Rd3+ 75. Kg2 g5 76. fxg5+ Kxg5 77. Rg8+ Kf6 78. Rh8 Rd4 79. Ra8 e5 80. Rf8+ Kg6 81. Re8 e4 82. Ra8 Rd2 83. Ra3 Kf6 84. Rb3 f4 85. Kg1 Ke5 86. Rb4 Rd3 87. Kg2 f3+ 88. Kg1 Rd1+ 89. Kh2 e3 90. Rb5+ Rd5 91. Rb3 e2 92. Re3+ Kf4 93. Re8 Re5 94. Rf8+ Ke4 95. Rf7 e1Q 96. Rf4+ Kd3 97. Rd4+ Ke2 0-1

[Event "Charlotte Spring IMC 2024"]
[Site "Charlotte"]
[Date "2024.03.30"]
[Round "6"]
[White "Kunka, Harshid"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "B28"]
[WhiteElo "2294"]
[BlackElo "2449"]
[PlyCount "64"]
[EventDate "2024.03.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. c3 e6 4. d4 d5 5. e5 Bd7 6. Bd3 Nc6 7. 0-0 cxd4 8. cxd4 Qb6 9. Be2 Nge7 10. Na3 Nf5 11. Nc2 Be7 12. Rb1 Rc8 13. b3 Nb4 14. Nxb4 Bxb4 15. g4 Ne7 16. a3 Bc3 17. Be3 h5 18. h3 Qa5 19. a4 b5 20. b4 Bxb4 21. Qb3 hxg4 22. hxg4 Nc6 23. axb5 axb5 24. Ra1 Qb6 25. Rfc1 Be7 26. Qxb5 Qxb5 27. Bxb5 0-0 28. Be2 f6 29. exf6 gxf6 30. Bb5 Kf7 31. g5 Nb8 32. Rxc8 Rxc8 1/2-1/2

[Event "Charlotte Spring IMC 2024"]
[Site "Charlotte"]
[Date "2024.03.30"]
[Round "7"]
[White "Posthuma, Joshua G"]
[Black "Nguyen, James Le"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2449"]
[BlackElo "2114"]
[PlyCount "111"]
[EventDate "2024.03.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 c5 3. Nc3 Nf6 4. e4 dxe4 5. dxc5 Bd7 6. Qd2 Nc6 7. 0-0-0 e5 8. Bg5 Bxc5 9. Bxf6 gxf6 10. Nxe4 Be7 11. Nf3 Qc7 12. Bb5 0-0-0 13. Nd6+ Bxd6 14. Qxd6 Be6 15. Qa3 a6 16. Bd3 f5 17. Ng5 e4 18. Nxe6 fxe6 19. Bc4 Nd4 20. Qc3 e5 21. Rhe1 Kb8 22. Bb3 Qd7 23. Qe3 Qb5 24. Kb1 a5 25. Bf7 a4 26. c3 Nc6 27. Qg5 f4 28. a3 Rxd1+ 29. Rxd1 Qe2 30. Rd7 Qxf2 31. Bd5 Qf1+ 32. Ka2 Qb5 33. Qg7 Rc8 34. Qxh7 e3 35. Qe4 e2 36. Be6 Rd8 37. Ka1 Re8 38. Bg4 Na5 39. Qxe2 Nc4 40. Rd1 Qb3 41. Bf3 e4 42. Bh5 Re7 43. Rd4 Ne3 44. Kb1 Rg7 45. g3 fxg3 46. Qxe3 gxh2 47. Rd8+ Kc7 48. Qc5+ Kxd8 49. Qf8+ Kc7 50. Qxg7+ Kb6 51. Qg2 Qb5 52. Qxh2 Qf1+ 53. Kc2 Qd3+ 54. Kc1 Qf1+ 55. Bd1 Qd3 56. Qe2 1-0

[Event "Charlotte Spring IMC 2024"]
[Site "Charlotte"]
[Date "2024.03.29"]
[Round "4"]
[White "Mendez Tovar, Jessica Yissel"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "B35"]
[WhiteElo "1993"]
[BlackElo "2449"]
[PlyCount "70"]
[EventDate "2024.03.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 Re8 9. 0-0 d6 10. f3 Na5 11. Qd2 Bd7 12. Rfe1 Rc8 13. Rad1 Nc4 14. Bxc4 Rxc4 15. b3 Rc8 16. Nd5 a6 17. c4 b5 18. Ne2 Bc6 19. Bb6 Qd7 20. Bd4 e5 21. Nb6 Qc7 22. Bf2 Rcd8 23. Rc1 Qb7 24. Nd5 Nxd5 25. cxd5 Bd7 26. Qa5 Rc8 27. Bb6 Bh6 28. Rcd1 Rc2 29. Nc1 f5 30. Nd3 fxe4 31. fxe4 Bg4 32. Nb4 Bxd1 33. Rxd1 Re2 34. Bc7 Qa7+ 35. Kh1 Qf2 0-1

[Event "Charlotte Spring IMC 2024"]
[Site "Charlotte"]
[Date "2024.03.29"]
[Round "5"]
[White "Posthuma, Joshua G"]
[Black "Horobetz, Graham"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2449"]
[BlackElo "2252"]
[PlyCount "65"]
[EventDate "2024.03.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. dxc5 Nc6 5. Bb5 e6 6. b4 Bd7 7. c3 a5 8. Qb3 Nh5 9. Ne2 Nxf4 10. Nxf4 Qf6 11. 0-0 h5 12. Nd2 g5 13. Nd3 Bg7 14. Rac1 0-0 15. a4 Qg6 16. Nf3 Be8 17. Rfd1 Rd8 18. Bxc6 bxc6 19. b5 g4 20. Nfe5 Qe4 21. Nxc6 Bxc6 22. bxc6 Rb8 23. Qc2 Rfc8 24. c4 dxc4 25. Qxc4 Qxc6 26. Rb1 Rd8 27. Rb5 Rbc8 28. Rxa5 Rd5 29. Rf1 Bf8 30. g3 Bxc5 31. Rc1 Ba3 32. Qxc6 Rxc6 33. Ra8+ 1-0

[Event "Charlotte Spring IMC 2024"]
[Site "Charlotte"]
[Date "2024.03.28"]
[Round "2"]
[White "Eckert, Doug D"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2146"]
[BlackElo "2449"]
[PlyCount "100"]
[EventDate "2024.03.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. 0-0 0-0 6. b3 d4 7. e3 c5 8. Ne5 Qc7 9. f4 Nfd7 10. exd4 cxd4 11. Nxd7 Bxd7 12. d3 Nc6 13. Na3 f5 14. Nc2 Rae8 15. Rb1 e5 16. b4 b6 17. b5 Nd8 18. fxe5 Qxe5 19. Nb4 Bxb4 20. Rxb4 Ne6 21. Rb2 Nc5 22. Rbf2 h6 23. Bf3 Kh7 24. Re2 Qf6 25. Rfe1 Rxe2 26. Rxe2 Re8 27. Ba3 Re3 28. Rxe3 dxe3 29. d4 Ne4 30. Qd3 Nd2 31. Kg2 Qg5 32. Bd5 Qh5 33. Qxe3 Qxh2+ 34. Kxh2 Nf1+ 35. Kg1 Nxe3 36. Bf7 g5 37. Kf2 Ng4+ 38. Ke2 Nf6 39. Be7 Kg7 40. Bxf6+ Kxf6 41. Bd5 Ke7 42. a4 Kd6 43. Ke3 Bc8 44. Kf3 a6 45. Ke3 axb5 46. axb5 Bd7 47. Bf7 Ke7 48. Bd5 Kd6 49. Bf7 Bc8 50. Bd5 Bd7 1/2-1/2

[Event "Charlotte Spring IMC 2024"]
[Site "Charlotte"]
[Date "2024.03.28"]
[Round "3"]
[White "Posthuma, Joshua G"]
[Black "Fierro Baquero, Martha Lorena"]
[Result "1-0"]
[ECO "B27"]
[WhiteElo "2449"]
[BlackElo "2283"]
[PlyCount "61"]
[EventDate "2024.03.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. d4 g6 2. e4 Bg7 3. Nc3 c5 4. dxc5 Qa5 5. Bd2 Qxc5 6. Nf3 Nf6 7. Bd3 0-0 8. 0-0 d6 9. h3 Be6 10. Re1 Nbd7 11. Be3 Qa5 12. Nd4 Ne5 13. Nxe6 fxe6 14. Ne2 d5 15. exd5 Nxd5 16. Bd4 Rad8 17. c3 Nxd3 18. Qxd3 e5 19. Be3 Nxe3 20. Qxe3 Qb5 21. Ng3 Qxb2 22. Rab1 Qxa2 23. Rxb7 a5 24. Rxe7 Rf7 25. Qa7 Rdf8 26. Ne4 a4 27. Rd1 Bh6 28. Rxf7 Rxf7 29. Qb8+ Rf8 30. Nf6+ Kg7 31. Qxe5 1-0

[Event "Charlotte Spring IMC 2024"]
[Site "Charlotte"]
[Date "2024.03.27"]
[Round "1"]
[White "Komarov, Dimitri"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "E90"]
[WhiteElo "2448"]
[BlackElo "2449"]
[PlyCount "62"]
[EventDate "2024.03.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d6 5. e4 Bg4 6. Be2 Bxf3 7. Bxf3 e5 8. d5 h5 9. 0-0 Nbd7 10. Rb1 Bh6 11. Bxh6 Rxh6 12. Qd2 Rh8 13. b4 Kf8 14. Rfc1 Kg7 15. Na4 a5 16. bxa5 b6 17. Rb5 Ra6 18. Nc3 bxa5 19. Na4 Nb6 20. Nb2 Nfd7 21. Nd3 Na4 22. Rxa5 Qa8 23. Rxa6 Qxa6 24. Nb4 Qa5 25. a3 Nac5 26. Rc3 Nf6 27. Qe3 Ra8 28. h3 h4 29. Kh2 Qb6 30. Qe2 Ra4 31. Re3 Ra8 1/2-1/2

[Event "Chesterfield SPICE Cup op"]
[Site "Chesterfield"]
[Date "2023.12.21"]
[Round "8"]
[White "Hakobyan, Aram"]
[Black "Posthuma, Joshua G"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "2616"]
[BlackElo "2449"]
[PlyCount "71"]
[EventDate "2023.12.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Ne4 5. e3 c6 6. Bd3 f5 7. Ne5 Qh4 8. 0-0 Nd7 9. f4 Be7 10. Nxe4 fxe4 11. Be2 0-0 12. Ng4 Nf6 13. Ne5 Nd7 14. Bd2 Nxe5 15. dxe5 Bc5 16. b4 Bb6 17. c5 Bc7 18. Bc3 Bd7 19. Rb1 b5 20. a4 a6 21. Ra1 Rfb8 22. Qd4 Qd8 23. Qd2 a5 24. bxa5 Bxa5 25. axb5 Bxc3 26. Qxc3 Rxa1 27. Rxa1 cxb5 28. c6 Qc7 29. Rc1 b4 30. Qc5 Bc8 31. Qd6 Qa7 32. Kf2 b3 33. Ra1 Qb6 34. c7 Rb7 35. Ra8 Qxc7 36. Qxe6+ 1-0

[Event "Chesterfield SPICE Cup op"]
[Site "Chesterfield"]
[Date "2023.12.21"]
[Round "7"]
[White "Posthuma, Joshua G"]
[Black "Pham, Tran Gia Phuc"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2449"]
[BlackElo "2393"]
[PlyCount "42"]
[EventDate "2023.12.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 a6 6. 0-0 Nc6 7. Nbd2 b5 8. b3 c3 9. Nb1 b4 10. a3 Rb8 11. axb4 Bxb4 12. Qd3 e5 13. Nxc3 exd4 14. Ne4 0-0 15. Bb2 Nxe4 16. Qxe4 Bb7 17. Nxd4 Nxd4 18. Qxd4 Qxd4 19. Bxd4 Bxg2 20. Kxg2 Rfe8 21. Kf3 c5 1/2-1/2

[Event "Chesterfield SPICE Cup op"]
[Site "Chesterfield"]
[Date "2023.12.20"]
[Round "6"]
[White "Marjanovic, Annamaria"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "B32"]
[WhiteElo "2284"]
[BlackElo "2449"]
[PlyCount "122"]
[EventDate "2023.12.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nb3 g6 6. Be3 Qb4+ 7. N1d2 Bg7 8. c3 Qd6 9. f4 Qc7 10. Be2 Nf6 11. 0-0 0-0 12. Kh1 b6 13. Bf3 Bb7 14. e5 Ne8 15. Ne4 Rd8 16. Nd4 d6 17. exd6 Nxd6 18. Nxd6 Rxd6 19. Nb5 Rxd1 20. Nxc7 Rd7 21. Nb5 a6 22. Na3 b5 23. Nc2 Na5 24. Be2 Nc4 25. Bxc4 bxc4 26. Bd4 Rfd8 27. Rae1 f5 28. Be3 Be4 29. Nd4 Rb8 30. Rf2 Kf7 31. Kg1 a5 32. Ree2 a4 33. a3 e6 34. Rd2 Rbb7 35. Nf3 Bxf3 36. Rxd7+ Rxd7 37. Rxf3 Rd1+ 38. Rf1 Rxf1+ 39. Kxf1 e5 40. fxe5 Bxe5 41. g3 Kf6 42. Kf2 g5 43. Bb6 Ke6 44. Kf3 h5 45. Bd8 Bf6 46. Bc7 Kd5 47. Ke3 Be5 48. Bd8 f4+ 49. gxf4 Bxf4+ 50. Kf3 Bc1 51. Be7 Bxb2 52. Bb4 Bc1 53. Be7 Ke5 54. h3 Kf5 55. Bd6 g4+ 56. hxg4+ hxg4+ 57. Kg3 Bd2 58. Bb4 Bf4+ 59. Kf2 Ke4 60. Ke2 Be5 61. Ba5 Bd6 0-1

[Event "Chesterfield SPICE Cup op"]
[Site "Chesterfield"]
[Date "2023.12.19"]
[Round "4"]
[White "Posthuma, Joshua G"]
[Black "Sheehan, Ethan"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2449"]
[BlackElo "2339"]
[PlyCount "77"]
[EventDate "2023.12.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 e6 4. Nf3 c5 5. Nbd2 Nc6 6. c3 Bd6 7. Bg3 0-0 8. Bb5 Qe7 9. Bxc6 bxc6 10. Qa4 Bxg3 11. hxg3 Qb7 12. Qc2 Qb5 13. Nb3 cxd4 14. cxd4 Ne4 15. Nfd2 f5 16. Nxe4 fxe4 17. f4 e5 18. dxe5 Bg4 19. Nd4 Qb4+ 20. Qd2 Qb6 21. Rc1 c5 22. Nb3 c4 23. Nd4 a5 24. b3 Rac8 25. bxc4 dxc4 26. 0-0 Rfd8 27. Rc3 g6 28. Rfc1 Qc5 29. Rxc4 Qxc4 30. Rxc4 Rxc4 31. Qxa5 Rc1+ 32. Kh2 Rb8 33. Qd5+ Kg7 34. Ne6+ Kh6 35. Qd7 Bxe6 36. Qxe6 Rbb1 37. g4 Rh1+ 38. Kg3 Rbe1 39. g5+ 1-0

[Event "Chesterfield SPICE Cup op"]
[Site "Chesterfield"]
[Date "2023.12.18"]
[Round "3"]
[White "Posthuma, Joshua G"]
[Black "Harsha, Bharathakoti"]
[Result "0-1"]
[ECO "A84"]
[WhiteElo "2449"]
[BlackElo "2570"]
[PlyCount "62"]
[EventDate "2023.12.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c6 4. e3 f5 5. Bd3 Nf6 6. 0-0 Bd6 7. b3 Qe7 8. a4 a5 9. Ba3 Bxa3 10. Nxa3 0-0 11. Nc2 Ne4 12. Ne5 Nd7 13. f4 Nxe5 14. fxe5 b6 15. Bxe4 fxe4 16. Rxf8+ Qxf8 17. Qg4 Qe7 18. Rf1 Ba6 19. Rf2 dxc4 20. bxc4 Bxc4 21. Qxe4 Rc8 22. h4 b5 23. Ne1 bxa4 24. Nf3 h6 25. Nd2 Bd5 26. Qc2 Qb4 27. Rf1 Rf8 28. Rb1 Qa3 29. e4 Qe3+ 30. Kh1 Bb3 31. Nxb3 Rf4 0-1

[Event "Chesterfield SPICE Cup op"]
[Site "Chesterfield"]
[Date "2023.12.18"]
[Round "2"]
[White "Wang, Isaac"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "A85"]
[WhiteElo "2333"]
[BlackElo "2449"]
[PlyCount "57"]
[EventDate "2023.12.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Ne4 5. e3 c6 6. Bd3 f5 7. Ne5 Qh4 8. 0-0 Nd7 9. f4 Be7 10. Nxe4 dxe4 11. Be2 0-0 12. Bd2 Nxe5 13. dxe5 Rd8 14. Qe1 Qxe1 15. Bxe1 a5 16. Bc3 b6 17. Rfd1 Ba6 18. Kf2 Kf7 19. Bd4 c5 20. Bc3 g5 21. a4 Kg6 22. b3 h5 23. Rxd8 Rxd8 24. Rd1 gxf4 25. exf4 Rxd1 26. Bxd1 Bb7 27. Ke3 Bc6 28. Be1 h4 29. h3 1/2-1/2

[Event "Chesterfield SPICE Cup op"]
[Site "Chesterfield"]
[Date "2023.12.17"]
[Round "1"]
[White "Posthuma, Joshua G"]
[Black "Yang, Jingyun"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2449"]
[BlackElo "2129"]
[PlyCount "127"]
[EventDate "2023.12.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CB52_2023"]
[SourceDate "2023.12.27"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Qa4+ Nc6 7. e4 Nb6 8. Qc2 f5 9. Bb5 fxe4 10. Qxe4 0-0 11. Bxc6 bxc6 12. 0-0 Nd5 13. Re1 Bf5 14. Qh4 Nxc3 15. bxc3 e6 16. Bg5 Qd5 17. Be7 Rfe8 18. Ne5 Bxe5 19. Rxe5 Qd7 20. Bb4 Rab8 21. Rae1 Rb5 22. Bc5 a6 23. h3 Rb1 24. Qh6 Rxe1+ 25. Rxe1 Qg7 26. Qd2 h5 27. Qe2 Qh6 28. Qxa6 Qd2 29. Re3 Rb8 30. Bb4 Qd1+ 31. Kh2 Qd2 32. Qe2 Qxe2 33. Rxe2 Ra8 34. a3 Kf7 35. Re5 Bd3 36. Kg3 Bb5 37. Kf4 Rd8 38. h4 Kf6 39. f3 Rd7 40. Re1 Rd8 41. g4 Rd5 42. Re5 hxg4 43. fxg4 Rd7 44. Ba5 Rh7 45. h5 gxh5 46. Rxh5 Rf7 47. Rh6+ Kg7+ 48. Kg5 Re7 49. Rg6+ Kf7 50. Kh6 Re8 51. Rg7+ Kf6 52. g5+ Kf5 53. Rf7+ Kg4 54. g6 e5 55. dxe5 Rxe5 56. Bxc7 Rh5+ 57. Kg7 Rd5 58. Kf8 Rg5 59. g7 Bc4 60. Rf4+ Kh5 61. Rxc4 Rf5+ 62. Ke7 Kh6 63. g8Q Rh5 64. Rxc6# 1-0

[Event "Fort Lauderdale 1000 GM GM 11"]
[Site "Fort Lauderdale"]
[Date "2023.11.06"]
[Round "9"]
[White "Fus, Jakub"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "A31"]
[WhiteElo "2462"]
[BlackElo "2445"]
[PlyCount "74"]
[EventDate "2023.11.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d5 6. cxd5 Nxd5 7. Ndb5 Nxc3 8. Qxd8+ Kxd8 9. Nxc3 Bg7 10. Bf4 Bxc3+ 11. bxc3 Be6 12. e4 Nd7 13. Bb5 a6 14. Be2 Rc8 15. Kd2 Nc5 16. Ke3 Na4 17. Rhc1 f6 18. c4 Ke8 19. Rab1 Nc5 20. f3 Kf7 21. Kf2 Rc6 22. Be3 Rhc8 23. Rb4 a5 24. Rb5 b6 25. Bxc5 Rxc5 26. Rxb6 Bxc4 27. Bxc4+ Rxc4 28. Rxc4 Rxc4 29. Rb2 Ke6 30. h4 h5 31. Kg3 Ra4 32. Rd2 f5 33. exf5+ gxf5 34. Rb2 Kf6 35. Rb6+ e6 36. Rb2 f4+ 37. Kh2 Kf5 1/2-1/2

[Event "Fort Lauderdale 1000 GM GM 11"]
[Site "Fort Lauderdale"]
[Date "2023.11.06"]
[Round "8"]
[White "Posthuma, Joshua G"]
[Black "Stearman, Josiah P"]
[Result "0-1"]
[ECO "D26"]
[WhiteElo "2445"]
[BlackElo "2451"]
[PlyCount "80"]
[EventDate "2023.11.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. Qe2 c5 7. dxc5 Bxc5 8. e4 b5 9. Bd3 Nc6 10. Nbd2 e5 11. 0-0 Be6 12. Nb3 Bxb3 13. axb3 0-0 14. Bg5 Qd6 15. Rfd1 Bd4 16. Nxd4 Nxd4 17. Qe3 Nd7 18. Bf1 Nc5 19. f3 Ncxb3 20. Ra3 Qe6 21. Qf2 Rfc8 22. f4 f6 23. Bh4 Qg4 24. Rd3 Rc2 25. Qg3 Ne2+ 26. Bxe2 Qxe2 27. Rc3 Rd8 28. h3 exf4 29. Qg4 Qxg4 30. hxg4 Rxc3 31. bxc3 Nc5 32. g5 Nxe4 33. gxf6 Rd1+ 34. Kh2 g5 35. Bxg5 Nxg5 36. Rxa6 Kf7 37. Ra5 Ne4 38. Rxb5 Ng3 39. Kh3 h5 40. Kh4 Kg6 0-1

[Event "Fort Lauderdale 1000 GM GM 11"]
[Site "Fort Lauderdale"]
[Date "2023.11.05"]
[Round "7"]
[White "Budisavljevic, Luka"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2515"]
[BlackElo "2445"]
[PlyCount "50"]
[EventDate "2023.11.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e5 4. 0-0 Nge7 5. c3 g6 6. d4 exd4 7. cxd4 cxd4 8. Bf4 a6 9. Bc4 Bg7 10. Bd6 b5 11. Bd5 0-0 12. Nbd2 Nxd5 13. Bxf8 Qxf8 14. exd5 Nb4 15. Nb3 d3 16. a3 Nxd5 17. Qxd3 Bb7 18. Na5 Nf4 19. Qxd7 Bxf3 20. gxf3 Bxb2 21. Rad1 Qxa3 22. Qc6 Rb8 23. Nb7 Qe7 24. Kh1 Qxb7 25. Rd8+ Kg7 0-1

[Event "Fort Lauderdale 1000 GM GM 11"]
[Site "Fort Lauderdale"]
[Date "2023.11.05"]
[Round "6"]
[White "Posthuma, Joshua G"]
[Black "Ozenir, Ekin Baris"]
[Result "1/2-1/2"]
[ECO "D23"]
[WhiteElo "2445"]
[BlackElo "2391"]
[PlyCount "97"]
[EventDate "2023.11.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+ c6 5. Qxc4 Bf5 6. g3 e6 7. Bg2 Be7 8. 0-0 0-0 9. e3 Nbd7 10. Qe2 Rc8 11. Nc3 Ne4 12. Nd2 Nxd2 13. Bxd2 e5 14. d5 cxd5 15. Nxd5 Nf6 16. Ba5 b6 17. Rfd1 Nxd5 18. Rxd5 Qc7 19. Bc3 f6 20. Rad1 Be6 21. R5d2 Rfd8 22. Bd5 Bxd5 23. Rxd5 Rxd5 24. Rxd5 Rd8 25. Qd3 Qc8 26. a4 a5 27. Kf1 Rxd5 28. Qxd5+ Kf8 29. Qe4 Qh3+ 30. Kg1 Qd7 31. g4 h6 32. Kg2 Kf7 33. Qc4+ Qe6 34. Qxe6+ Kxe6 35. e4 Bc5 36. b3 Kd6 37. Kf3 Bb4 38. Bb2 g5 39. Ke2 b5 40. Kd3 Kc6 41. Bc1 Kb6 42. f3 Kc6 43. Be3 Bc5 44. Bd2 Bb4 45. Be3 Bc5 46. Bxc5 Kxc5 47. Kc3 Kc6 48. Kc2 Kc5 49. Kc3 1/2-1/2

[Event "Fort Lauderdale 1000 GM GM 11"]
[Site "Fort Lauderdale"]
[Date "2023.11.04"]
[Round "5"]
[White "Kevlishvili, Robby"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "B32"]
[WhiteElo "2535"]
[BlackElo "2445"]
[PlyCount "143"]
[EventDate "2023.11.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qe7 8. Qd1 Nf6 9. Nc3 Nd4 10. Bd3 b5 11. 0-0 Bb7 12. Re1 0-0 13. Be3 Ne6 14. a4 Nc5 15. axb5 axb5 16. Rxa8 Rxa8 17. Bxb5 Ncxe4 18. Nxe4 Bxe4 19. Bg5 d5 20. Bf1 Qb4 21. c4 Bc2 22. Qc1 Ne4 23. Be7 Qxe7 24. Qxc2 Qb4 25. Qe2 Nd2 26. Qxe5 Nxc4 27. Qxd5 Nb6 28. Qxa8+ Nxa8 29. Re8+ Qf8 30. Rxf8+ Kxf8 31. Bd3 Ke7 32. Kf1 h6 33. Ke2 Kd6 34. Bc4 f6 35. Kd3 Kc5 36. Kc3 Nb6 37. b4+ Kd6 38. Kd4 Nc8 39. b5 Nb6 40. Be2 Nd5 41. g3 Nb6 42. Ke4 Nd5 43. Bc4 Nb6 44. Bb3 Nd7 45. Kf5 Ke7 46. Kg6 Kf8 47. f4 Nb6 48. h4 Nd7 49. Be6 Nb6 50. g4 Na8 51. Bb3 Nb6 52. g5 hxg5 53. hxg5 fxg5 54. Kxg5 Ke7 55. Kg6 Kf8 56. Be6 Ke7 57. Ba2 Kf8 58. Bb3 Nc8 59. Be6 Nb6 60. f5 Na8 61. Bf7 Nb6 62. f6 gxf6 63. Kxf6 Na8 64. Be6 Ke8 65. Ke5 Ke7 66. Bc8 Nb6 67. Bf5 Na8 68. Be4 Nb6 69. Bf5 Na8 70. Kd5 Nc7+ 71. Kc6 Nxb5 72. Kxb5 1/2-1/2

[Event "Fort Lauderdale 1000 GM GM 11"]
[Site "Fort Lauderdale"]
[Date "2023.11.04"]
[Round "4"]
[White "Posthuma, Joshua G"]
[Black "Kavutskiy, Konstantin"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2445"]
[BlackElo "2394"]
[PlyCount "93"]
[EventDate "2023.11.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 a6 7. Qd2 c6 8. a4 a5 9. Bd3 e5 10. Nge2 exd4 11. Nxd4 Re8 12. 0-0-0 Na6 13. Rhe1 d5 14. cxd5 cxd5 15. Bxa6 bxa6 16. e5 Nd7 17. Nc6 Qc7 18. Qxd5 Bb7 19. Qxd7 Qxd7 20. Rxd7 Bxc6 21. Rc7 Rac8 22. Bb6 Rxc7 23. Bxc7 Bxa4 24. Bxa5 Bc6 25. Bc7 Re6 26. Re2 g5 27. Kc2 h5 28. Kd3 Kh7 29. Kd4 Kg6 30. Nd5 h4 31. Rf2 Bxd5 32. Kxd5 Kf5 33. Re2 Re7 34. Bd6 Re8 35. b4 h3 36. gxh3 Rh8 37. Kc6 Kf4 38. Re1 Bf8 39. Ra1 Bg7 40. Ra5 Kxf3 41. Rxa6 Ke4 42. b5 Rxh3 43. b6 Rc3+ 44. Kd7 Rb3 45. Ra4+ Kf5 46. Rb4 Rd3 47. Rb5 1-0

[Event "Fort Lauderdale 1000 GM GM 11"]
[Site "Fort Lauderdale"]
[Date "2023.11.03"]
[Round "3"]
[White "Fishbein, Alexander"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "2382"]
[BlackElo "2445"]
[PlyCount "42"]
[EventDate "2023.11.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Qd3 Na6 6. Bd2 Nc7 7. Nf3 Nxe4 8. Qxe4 g6 9. Bc4 Be6 10. Bxe6 Nxe6 11. 0-0 Bg7 12. c3 Qd5 13. Rfe1 0-0-0 14. Qxd5 Rxd5 15. Re2 Bf6 16. Rae1 Rhd8 17. Kf1 h5 18. h3 Ra5 19. a3 Rf5 20. Ne5 Bxe5 21. Rxe5 Rxe5 1/2-1/2

[Event "Fort Lauderdale 1000 GM GM 11"]
[Site "Fort Lauderdale"]
[Date "2023.11.03"]
[Round "2"]
[White "Posthuma, Joshua G"]
[Black "Ngo, Bach"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2445"]
[BlackElo "2367"]
[PlyCount "143"]
[EventDate "2023.11.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 e6 4. Nd2 Bd6 5. Ngf3 0-0 6. Bd3 c5 7. dxc5 Bxf4 8. exf4 Qc7 9. g3 Qxc5 10. 0-0 b6 11. Qe2 Bb7 12. c3 Qc8 13. a4 Nbd7 14. a5 Nc5 15. a6 Bc6 16. Nd4 Bd7 17. Bc2 b5 18. Ra5 Rb8 19. Rc1 Rb6 20. b4 Rxa6 21. Rxa6 Nxa6 22. Nxb5 Qb8 23. Nd4 Nc7 24. Bd3 Nce8 25. N2b3 Nd6 26. Nc5 Rc8 27. Ra1 Be8 28. f5 Nde4 29. Bxe4 Nxe4 30. Nxe4 dxe4 31. fxe6 Rxc3 32. Qxe4 Rc4 33. b5 Qd8 34. Nc6 Rxe4 35. exf7+ Bxf7 36. Nxd8 Bc4 37. Nc6 Bxb5 38. Nxa7 Bd7 39. h4 Kf7 40. Rb1 h5 41. Nb5 Bxb5 42. Rxb5 g6 43. Kg2 Ra4 44. Kf3 Kf6 45. Rd5 Ke6 46. Rg5 Kf6 47. Ke3 Ra3+ 48. Kf4 Ra2 49. Kf3 Ra3+ 50. Kg2 Rb3 51. f4 Rb2+ 52. Kf3 Rb3+ 53. Ke4 Rb4+ 54. Ke3 Rb3+ 55. Kf2 Rb2+ 56. Kf3 Rb3+ 57. Kg2 Rb2+ 58. Kh3 Rf2 59. Ra5 Kg7 60. Ra6 Kf7 61. Ra1 Kf6 62. Rg1 Ra2 63. Rg2 Ra3 64. Rb2 Rc3 65. Rb6+ Kf7 66. Rb5 Kf6 67. Rg5 Rb3 68. f5 gxf5 69. Rxh5 f4 70. Rg5 Rxg3+ 71. Rxg3 fxg3 72. Kxg3 1/2-1/2

[Event "Fort Lauderdale 1000 GM GM 11"]
[Site "Fort Lauderdale"]
[Date "2023.11.02"]
[Round "1"]
[White "Posthuma, Joshua G"]
[Black "Heimann, Mark A"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "2445"]
[BlackElo "2440"]
[PlyCount "65"]
[EventDate "2023.11.02"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Bd6 6. Bg2 c6 7. Qc2 Nbd7 8. Bf4 Bxf4 9. gxf4 b6 10. cxd5 cxd5 11. Nc3 0-0 12. 0-0 Bb7 13. Rfc1 Qe7 14. e3 Rfc8 15. Qb3 Nf8 16. a4 Ng6 17. a5 bxa5 18. Rxa5 Ne4 19. Rca1 Nxc3 20. bxc3 a6 21. Bf1 Rc6 22. R1a3 Qc7 23. Bd3 Rc8 24. Bxa6 Bxa6 25. Rxa6 Rxc3 26. Qxc3 Qxc3 27. Rxc3 Rxc3 28. Ra8+ Nf8 29. Ne5 Rc7 30. f5 exf5 31. Nd3 Rd7 32. Nb4 f4 33. Ra5 1/2-1/2

[Event "US op 123nd"]
[Site "Grand Rapids"]
[Date "2023.08.06"]
[Round "9"]
[White "Brodsky, David"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "B32"]
[WhiteElo "2493"]
[BlackElo "2443"]
[PlyCount "116"]
[EventDate "2023.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qf6 8. Qd1 Qg6 9. Nc3 d5 10. Nxd5 Qxe4+ 11. Be3 Nd4 12. Nc7+ Ke7 13. Be2 Nxc2+ 14. Kf1 Nxe3+ 15. fxe3 Bh3 16. Nd5+ Kf8 17. Bf3 Qc4+ 18. Kg1 Rd8 19. Rc1 Qh4 20. gxh3 e4 21. Qd4 Qg5+ 22. Bg4 Qxd5 23. Qxd5 Rxd5 24. Rc8+ Ke7 25. Kf2 Rd2+ 26. Be2 Rd8 27. Rhc1 Nf6 28. R1c7+ Ke6 29. Rxd8 Rxd8 30. Rxb7 Rd2 31. Rb6+ Kd7 32. Ke1 Kc7 33. Kxd2 Kxb6 34. Kc3 Nd7 35. Kd4 Nc5 36. Bc4 f6 37. b4 Nd3 38. a3 Nf2 39. h4 a5 40. bxa5+ Kxa5 41. Bb3 h5 42. Bf7 Ka4 43. Bxh5 Kxa3 44. Bg6 Kb2 45. Bxe4 Kc1 46. Bf3 Kd2 47. h5 Nd3 48. Ke4 Ne5 49. Kf4 Nd3+ 50. Ke4 Ne5 51. h4 Nc4 52. Kf5 Kxe3 53. Kg6 Kxf3 54. Kxg7 Ne3 55. Kxf6 Ng4+ 56. Kg5 Kg3 57. h6 Nxh6 58. Kxh6 Kxh4 1/2-1/2

[Event "US op 123nd"]
[Site "Grand Rapids"]
[Date "2023.08.05"]
[Round "8"]
[White "Posthuma, Joshua G"]
[Black "Kaplan, Avi Harrison"]
[Result "1/2-1/2"]
[ECO "A31"]
[WhiteElo "2443"]
[BlackElo "2090"]
[PlyCount "52"]
[EventDate "2023.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Qb6 6. e3 e6 7. Be2 Be7 8. 0-0 0-0 9. b3 d5 10. Na4 Qc7 11. Bb2 Rd8 12. Nxc6 Qxc6 13. Bf3 Qe8 14. cxd5 Nxd5 15. Qc2 b6 16. e4 Nb4 17. Qc3 Bf8 18. a3 Nd3 19. e5 Rb8 20. Qc2 Ba6 21. Be2 Nxb2 22. Nxb2 Rbc8 23. Qe4 Bxe2 24. Qxe2 Rc3 25. b4 Qc6 26. Rfd1 Rc2 1/2-1/2

[Event "US op 123nd"]
[Site "Grand Rapids"]
[Date "2023.08.02"]
[Round "5"]
[White "Kavutskiy, Konstantin"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "E12"]
[WhiteElo "2394"]
[BlackElo "2443"]
[PlyCount "70"]
[EventDate "2023.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. c4 Bb7 4. Nc3 e6 5. a3 d5 6. cxd5 Nxd5 7. Qc2 Nxc3 8. bxc3 Be7 9. e4 0-0 10. Bd3 c5 11. 0-0 cxd4 12. cxd4 Nd7 13. Bb2 Rc8 14. Qe2 Qc7 15. Rad1 Nf6 16. Bb1 b5 17. d5 exd5 18. exd5 Rfd8 19. Bf5 Ra8 20. d6 Bxd6 21. Bxf6 gxf6 22. Nh4 Bxh2+ 23. Kh1 Bf4 24. Qh5 h6 25. Rde1 Rd5 26. Qg4+ Kh8 27. Re4 Bg5 28. Rfe1 Re5 29. Rxe5 fxe5 30. Nf3 Bf4 31. Qh5 Rg8 32. Be4 Bxe4 33. Rxe4 Qc2 34. Rxe5 Qxf2 35. Qh3 Rg3 0-1

[Event "US op 123nd"]
[Site "Grand Rapids"]
[Date "2023.07.31"]
[Round "3"]
[White "Posthuma, Joshua G"]
[Black "Gurevich, Dmitry"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2443"]
[BlackElo "2371"]
[PlyCount "96"]
[EventDate "2023.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 a6 4. Nbd2 Nf6 5. g3 c5 6. Bg2 Nc6 7. 0-0 h6 8. a3 a5 9. Nb3 dxc4 10. Nxc5 Nxd4 11. Nxb7 Nxf3+ 12. Bxf3 Qxd1 13. Rxd1 Nd5 14. Nd8 Kxd8 15. e4 Bd6 16. exd5 e5 17. Bd2 Bf5 18. Be2 Bd3 19. Bxd3 cxd3 20. Bc3 e4 21. Bxg7 Re8 22. Bxh6 Rb8 23. Rab1 Kd7 24. Be3 Re5 25. f3 f5 26. fxe4 fxe4 27. Rf1 Rxd5 28. Rf7+ Ke6 29. Rbf1 Be5 30. Rh7 Rh8 31. Rxh8 Bxh8 32. b4 axb4 33. axb4 Bc3 34. Rb1 Rb5 35. g4 Kd5 36. Kg2 Bd4 37. Bf4 e3 38. Kf3 e2 39. Bd2 Rb7 40. Kg2 Rf7 41. Re1 Ke4 42. b5 Rf2+ 43. Kg3 Rf1 44. Kg2 Rxe1 45. Bxe1 Ke3 46. Bf2+ Kd2 47. b6 Bxf2 48. b7 Ba7 0-1

[Event "US op 123nd"]
[Site "Grand Rapids"]
[Date "2023.07.29"]
[Round "1"]
[White "Ladan, Nicholas John"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "2218"]
[BlackElo "2443"]
[PlyCount "72"]
[EventDate "2023.07.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. c3 e6 6. 0-0 Be7 7. a4 0-0 8. Nbd2 cxd4 9. Nxd4 d5 10. a5 Na6 11. Re1 Re8 12. Nc4 Nc5 13. Ne5 Bd6 14. Nd3 bxa5 15. Nxc5 Bxc5 16. Qa4 Ne4 17. Be3 Bb6 18. Red1 Nc5 19. Qa3 Qe7 20. c4 dxc4 21. Nc6 Qc7 22. Nxa5 Bxg2 23. Kxg2 Nb3 24. Nxb3 Bxe3 25. fxe3 Qb7+ 26. Kf2 cxb3 27. Qa6 Qe4 28. Rd7 Qc2 29. Qa3 a5 30. Rad1 h5 31. R1d4 e5 32. R4d6 a4 33. Rb7 Qf5+ 34. Kg1 Rec8 35. Qa1 Qe4 36. Rdd7 Qxe3+ 0-1

[Event "CAN Transnational op"]
[Site "Montreal"]
[Date "2023.06.11"]
[Round "8"]
[White "Posthuma, Joshua G"]
[Black "Cervantes Landeiro, Thalia"]
[Result "1-0"]
[ECO "D23"]
[WhiteElo "2457"]
[BlackElo "2271"]
[PlyCount "87"]
[EventDate "2023.06.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. Qa4+ c6 5. Qxc4 Bf5 6. g3 e6 7. Bg2 Be7 8. 0-0 0-0 9. e3 Nbd7 10. Qe2 h6 11. Rd1 Qc7 12. Nbd2 e5 13. e4 Bg4 14. h3 Be6 15. b3 Rfe8 16. Bb2 exd4 17. Nxd4 Bc5 18. Rac1 Bb6 19. f4 Bd5 20. Qd3 Be6 21. Kh2 Rad8 22. e5 Nxe5 23. fxe5 Qxe5 24. Nxe6 Qxe6 25. Qc4 Qe3 26. Bxf6 Rxd2 27. Rxd2 Qxd2 28. Qg4 g5 29. Rf1 Bc7 30. h4 Qe2 31. Qxe2 Rxe2 32. hxg5 hxg5 33. Rf5 Rxa2 34. Rxg5+ Kf8 35. Kh1 Ra5 36. Rg4 Rf5 37. Bg7+ Ke7 38. Re4+ Kd8 39. Bh3 Rf2 40. Bd4 Rf3 41. Bg4 f5 42. Bf6+ Kc8 43. Re8+ Kd7 44. Re7+ 1-0

[Event "CAN Transnational op"]
[Site "Montreal"]
[Date "2023.06.11"]
[Round "9"]
[White "Szabo, Gergely Andras"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "A37"]
[WhiteElo "2504"]
[BlackElo "2457"]
[PlyCount "14"]
[EventDate "2023.06.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. Nf3 d6 6. 0-0 Bf5 7. d3 Qd7 1/2-1/2

[Event "CAN Transnational op"]
[Site "Montreal"]
[Date "2023.06.10"]
[Round "7"]
[White "Neiksans, Arturs"]
[Black "Posthuma, Joshua G"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2605"]
[BlackElo "2457"]
[PlyCount "63"]
[EventDate "2023.06.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. d3 Qc7 4. Nc3 dxe4 5. Nxe4 Nf6 6. Qe2 Nxe4 7. Qxe4 Nd7 8. g3 Nf6 9. Qe2 Bg4 10. Bg2 e6 11. h3 Bxf3 12. Bxf3 Bd6 13. d4 0-0-0 14. 0-0 e5 15. dxe5 Bxe5 16. Be3 Rhe8 17. Qc4 Bxb2 18. Rae1 Nd5 19. Bxa7 Rxe1 20. Rxe1 Qa5 21. Rb1 Qxa7 22. Rxb2 Qa5 23. Qg4+ Kb8 24. c4 Nf6 25. Qxg7 Qc3 26. Rb3 Qe1+ 27. Kg2 Rd2 28. Qf8+ Kc7 29. Qxf7+ Nd7 30. Qf4+ Ne5 31. Bh5 Qa1 32. Qxd2 1-0

[Event "CAN Transnational Classic"]
[Site "Montreal"]
[Date "2023.06.10"]
[Round "6"]
[White "Posthuma, Joshua G"]
[Black "Bruzon Batista, Lazaro"]
[Result "1/2-1/2"]
[ECO "E90"]
[WhiteElo "2457"]
[BlackElo "2617"]
[PlyCount "124"]
[EventDate "2023.06.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. h3 e6 7. Nf3 0-0 8. Bd3 Na6 9. 0-0 Nc7 10. Re1 b6 11. a4 a5 12. dxe6 Nxe6 13. Be3 Nd7 14. Be2 Ne5 15. Nxe5 Bxe5 16. Qd2 Bb7 17. Rad1 Nd4 18. Bxd4 cxd4 19. Nb5 Bxe4 20. Nxd4 Qf6 21. Bf3 Bxf3 22. Nxf3 Bxb2 23. Qxd6 Rfc8 24. Qxf6 Bxf6 25. Rd6 Kg7 26. Re4 Re8 27. Rxe8 Rxe8 28. Rxb6 Rc8 29. Rb5 Bc3 30. Ng5 Rxc4 31. Rb7 Be5 32. g3 Rc7 33. Rxc7 Bxc7 34. f4 h6 35. Ne4 f5 36. Nc3 Kf7 37. Kf2 Ke6 38. Kf3 h5 39. g4 Bb6 40. gxh5 gxh5 41. Kg3 Bd8 42. Kf3 Bf6 43. Ne2 h4 44. Ke3 Kd5 45. Kd3 Kc5 46. Nc3 Bd4 47. Nb5 Bf2 48. Ke2 Bg3 49. Kd3 Kb4 50. Nd4 Kxa4 51. Kc4 Ka3 52. Nxf5 a4 53. Nd6 Bxf4 54. Nb5+ Kb2 55. Kb4 Be5 56. Kxa4 Kc2 57. Kb4 Kd3 58. Kc5 Ke4 59. Kc4 Kf3 60. Nd4+ Bxd4 61. Kxd4 Kg3 62. Ke3 Kxh3 1/2-1/2

[Event "CAN Transnational op"]
[Site "Montreal"]
[Date "2023.06.09"]
[Round "5"]
[White "Lenderman, Aleksandr"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "2566"]
[BlackElo "2457"]
[PlyCount "93"]
[EventDate "2023.06.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 a6 4. cxd5 exd5 5. Nf3 c6 6. Qc2 Nf6 7. Bg5 Be6 8. e3 h6 9. Bf4 c5 10. dxc5 Bxc5 11. Be2 Nc6 12. 0-0 0-0 13. Rfd1 Qe7 14. Ne5 Nb4 15. Qb1 Bd6 16. Bg3 Rfd8 17. Nf3 Bc5 18. Bh4 Nc6 19. Nd4 Nxd4 20. exd4 Bb4 21. Qd3 Rac8 22. Rac1 Bxc3 23. Rxc3 Bf5 24. Qe3 Qxe3 25. fxe3 g5 26. Rf1 Bg4 27. Rxf6 Rxc3 28. bxc3 Bxe2 29. Bg3 Rc8 30. Rxh6 Rc6 31. Rxc6 bxc6 32. h4 gxh4 33. Bxh4 Kg7 34. Kf2 Bc4 35. a3 Kg6 36. g4 f6 37. Kg3 Bd3 38. Kf4 Kf7 39. Bf2 Ke6 40. Kg3 Be2 41. Kh4 Kf7 42. Bg3 Bf3 43. Bc7 Be4 44. Kg3 Bd3 45. Kf4 Ke6 46. Bd8 Bb1 47. g5 1/2-1/2

[Event "CAN Transnational op"]
[Site "Montreal"]
[Date "2023.06.09"]
[Round "4"]
[White "Posthuma, Joshua G"]
[Black "Hua, Eugene"]
[Result "1-0"]
[ECO "E07"]
[WhiteElo "2457"]
[BlackElo "2275"]
[PlyCount "63"]
[EventDate "2023.06.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[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. g3 d5 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 c6 7. Nc3 Nbd7 8. Nd2 Nb6 9. b3 c5 10. dxc5 Bxc5 11. Bb2 dxc4 12. bxc4 e5 13. Nd5 Be6 14. e4 Bd4 15. Bxd4 exd4 16. Qb3 Bxd5 17. cxd5 Nfd7 18. Qd3 Qf6 19. Nf3 Nc5 20. Qxd4 Qxd4 21. Nxd4 Rfe8 22. Rfe1 g6 23. Nb5 Red8 24. Rad1 a6 25. Nc7 Rac8 26. d6 f6 27. f4 Kf7 28. e5 Ne6 29. Bxb7 Nxc7 30. Bxc8 Rxc8 31. dxc7 Rxc7 32. Rd6 1-0

[Event "CAN Transnational op"]
[Site "Montreal"]
[Date "2023.06.08"]
[Round "3"]
[White "Matviishen, Viktor"]
[Black "Posthuma, Joshua G"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2538"]
[BlackElo "2457"]
[PlyCount "55"]
[EventDate "2023.06.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e5 4. 0-0 Bd6 5. c3 a6 6. Ba4 b5 7. Bc2 Nge7 8. d3 0-0 9. a4 Rb8 10. Be3 Ng6 11. axb5 axb5 12. Bb3 Na5 13. Ba2 b4 14. Nbd2 Ba6 15. Ng5 Be7 16. Qh5 Bxg5 17. Bxg5 Qb6 18. Bd5 bxc3 19. bxc3 Bxd3 20. Rfe1 c4 21. Be3 Qc7 22. Nf3 Ne7 23. Qxe5 d6 24. Bxf7+ Rxf7 25. Qxa5 Qxa5 26. Rxa5 Bxe4 27. Ng5 Rf5 28. Ra7 1-0

[Event "CAN Transnational op"]
[Site "Montreal"]
[Date "2023.06.07"]
[Round "2"]
[White "Posthuma, Joshua G"]
[Black "Almeida Quintana, Omar"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2457"]
[BlackElo "2520"]
[PlyCount "99"]
[EventDate "2023.06.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d6 2. e4 Nf6 3. f3 c5 4. c3 Qc7 5. Be3 Nbd7 6. Bd3 e5 7. d5 Be7 8. Nd2 0-0 9. Ne2 Nh5 10. g4 Bh4+ 11. Kf1 Nhf6 12. Ng3 Nb6 13. a4 Bd7 14. Bb5 Bxb5+ 15. axb5 g6 16. Bh6 Rfb8 17. Kg2 Ne8 18. Qe2 Qd7 19. Ra5 Nc7 20. Rha1 Nc8 21. c4 a6 22. bxa6 bxa6 23. b3 Ne7 24. f4 exf4 25. Bxf4 Bf6 26. e5 Nexd5 27. cxd5 Nxd5 28. Rf1 Nxf4+ 29. Rxf4 Bxe5 30. Rf3 Qxg4 31. Rxa6 h5 32. Rxa8 Rxa8 33. Qc4 Ra7 34. Qxg4 hxg4 35. Rd3 f5 36. Nc4 Ra2+ 37. Rd2 Rxd2+ 38. Nxd2 d5 39. h3 gxh3+ 40. Kxh3 Kf7 41. Nf3 Kf6 42. Kg2 Bd6 43. Ne2 g5 44. Nc3 g4 45. Nxd5+ Ke6 46. Ne3 gxf3+ 47. Kxf3 Bc7 48. Ke2 f4 49. Nc4 Kd5 50. Kd3 1/2-1/2

[Event "CAN Transnational op"]
[Site "Montreal"]
[Date "2023.06.06"]
[Round "1"]
[White "Golubeva, Oksana"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2179"]
[BlackElo "2457"]
[PlyCount "154"]
[EventDate "2023.06.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. Nf3 c5 2. e3 Nf6 3. d4 cxd4 4. exd4 d5 5. Bd3 Nc6 6. c3 Qc7 7. Bg5 Bg4 8. Nbd2 e6 9. Qc2 Bd6 10. Bh4 Nh5 11. Bg3 Nf4 12. Bxf4 Bxf4 13. g3 Bd6 14. 0-0-0 0-0-0 15. Rde1 Kb8 16. Re3 Ka8 17. Kb1 Rb8 18. Qa4 Bh5 19. Rc1 Rhc8 20. Ree1 Bg6 21. Bxg6 hxg6 22. b4 b5 23. Qb3 a5 24. a3 Rb6 25. Ng5 Nd8 26. Kb2 Rc6 27. Re3 Be7 28. h4 Bf6 29. Ngf3 Nb7 30. Ne5 Bxe5 31. Rxe5 Nd6 32. Re3 Nf5 33. Rd3 a4 34. Qc2 f6 35. Nf3 Nd6 36. Nd2 Qf7 37. Rf3 Nf5 38. Qd3 Qa7 39. Rxf5 gxf5 40. Qxb5 Qa6 41. Qxa6+ Rxa6 42. Re1 Kb7 43. f4 Kc7 44. Re3 Kd6 45. Nf3 Re8 46. Kc2 Rc6 47. Kd2 Re7 48. Kd3 Kc7 49. Ne1 Kb6 50. Kd2 Kb5 51. Nd3 g5 52. fxg5 fxg5 53. hxg5 Rg7 54. Ne5 Rc8 55. Kd3 Rh8 56. c4+ dxc4+ 57. Nxc4 Kc6 58. Rxe6+ Kd7 59. Ra6 Rxg5 60. Ne5+ Kc7 61. Rxa4 Rxg3+ 62. Kc4 Rf8 63. Kc5 Rc3+ 64. Kd5 f4 65. Ra7+ Kb6 66. Rh7 Kb5 67. Rh2 Rxa3 68. Ke4 Re3+ 69. Kd5 f3 70. Rf2 Kxb4 71. Nc6+ Kc3 72. Ne5 Rf6 73. Kc5 Rf8 74. Kd5 Rf5 75. Ke6 Rf4 76. Rf1 f2 77. d5 Re1 0-1

[Event "CAN Transnational Rapid"]
[Site "Toronto"]
[Date "2023.06.04"]
[Round "11"]
[White "Posthuma, Joshua G"]
[Black "Matviishen, Viktor"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2457"]
[BlackElo "2538"]
[PlyCount "88"]
[EventDate "2023.06.03"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "CAN"]
[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. Nf3 Nf6 4. Nbd2 Bf5 5. Nh4 Be4 6. f3 Bg6 7. Qb3 Qc7 8. e4 dxe4 9. Nxg6 hxg6 10. fxe4 e5 11. dxe5 Ng4 12. Nf3 Na6 13. Bd2 0-0-0 14. Be2 Bc5 15. Rf1 Rxd2 16. Kxd2 Rd8+ 17. Kc1 Ne3 18. Rg1 Nb4 19. a3 Nec2 20. axb4 Nxa1 21. Qa4 Bxg1 22. Nxg1 Qxe5 23. Qxa1 Qd4 24. Kc2 Qxe4+ 25. Kb3 Rd2 26. Bf1 Qe3+ 27. Ka2 Qxg1 28. Qe1 Qf2 29. Qc1 Rc2 30. Qb1 Qd2 31. Kb3 Rc1 32. Qd3 Qxd3+ 33. Bxd3 Kd7 34. c5 b6 35. cxb6 axb6 36. h3 Kd6 37. Be4 Ke5 38. Bf3 Kd4 39. Ka2 f5 40. b3 Kc3 41. Bxc6 Kxb4 42. Bd5 Rc2+ 43. Kb1 Rd2 44. Bf7 Rxg2 0-1

[Event "CAN Transnational Rapid"]
[Site "Toronto"]
[Date "2023.06.03"]
[Round "1"]
[White "Bareev, Evgeny"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "A50"]
[WhiteElo "2631"]
[BlackElo "2457"]
[PlyCount "69"]
[EventDate "2023.06.03"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "CAN"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 a6 3. Qc2 b5 4. e4 bxc4 5. Bxc4 e6 6. Nc3 d5 7. exd5 exd5 8. Be2 Be7 9. Nf3 0-0 10. 0-0 Nc6 11. a3 Bg4 12. Be3 Na5 13. Rac1 Rb8 14. b4 Bxf3 15. Bxf3 Nc4 16. Nxd5 Nxa3 17. Nxe7+ Qxe7 18. Qxc7 Qxb4 19. d5 Nb5 20. Qe5 Rfe8 21. Qa1 Qa3 22. Qxa3 Nxa3 23. Rc6 a5 24. Rfc1 Nb5 25. Ra1 h6 26. h3 Red8 27. Rc5 Nd7 28. Rcc1 Ne5 29. Be2 Rxd5 30. Rcb1 Rb7 31. Kh2 Nd6 32. Rc1 Rd7 33. Ra4 Nf5 34. Bb6 Rb7 35. Ra3 0-1

[Event "CAN Transnational Rapid"]
[Site "Toronto"]
[Date "2023.06.03"]
[Round "3"]
[White "Bruzon Batista, Lazaro"]
[Black "Posthuma, Joshua G"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2617"]
[BlackElo "2457"]
[PlyCount "61"]
[EventDate "2023.06.03"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "CAN"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. e5 c5 4. d4 Nc6 5. dxc5 Bg4 6. Be3 e6 7. c3 a6 8. Nbd2 Nxe5 9. Be2 Nc6 10. 0-0 Be7 11. b4 Bf6 12. Rc1 Nge7 13. h3 Bxf3 14. Nxf3 0-0 15. a3 e5 16. Qb3 Qc7 17. Rfd1 Rad8 18. a4 d4 19. cxd4 Nxd4 20. Bxd4 exd4 21. Bf1 Qf4 22. g3 Qh6 23. Bg2 Rfe8 24. Ne1 Rd7 25. b5 axb5 26. axb5 Rc8 27. Nd3 Qh5 28. h4 Rdc7 29. b6 Rd7 30. Bh3 Nf5 31. Nf4 1-0

[Event "CAN Transnational Rapid"]
[Site "Toronto"]
[Date "2023.06.03"]
[Round "2"]
[White "Posthuma, Joshua G"]
[Black "Bartel, Mateusz"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2457"]
[BlackElo "2609"]
[PlyCount "71"]
[EventDate "2023.06.03"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "CAN"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. g3 dxc4 4. Bg2 c6 5. Nc3 Nf6 6. Nf3 b5 7. Ne5 a6 8. a4 Bb7 9. axb5 axb5 10. Rxa8 Bxa8 11. 0-0 Nd5 12. Bxd5 cxd5 13. Nxb5 Qa5 14. Nc3 Nc6 15. Bf4 f6 16. Nxc6 Bxc6 17. Qa1 Qb6 18. Na4 Qb4 19. Nc5 Bxc5 20. dxc5 Qxc5 21. b3 0-0 22. bxc4 dxc4 23. Rd1 Ra8 24. Qc3 Bd5 25. Be3 Qa3 26. Bd4 Qa2 27. Kf1 Qb3 28. Ra1 Rxa1+ 29. Qxa1 e5 30. Bc3 Qc2 31. f3 e4 32. Qa5 Qd1+ 33. Kf2 exf3 34. Qd8+ Kf7 35. Qd7+ Kg6 36. Qg4+ 1/2-1/2

[Event "Chicago op 32nd"]
[Site "Chicago"]
[Date "2023.05.29"]
[Round "8"]
[White "Ladan, Nicholas John"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "2228"]
[BlackElo "2457"]
[PlyCount "48"]
[EventDate "2023.05.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. Bf4 Bb7 4. e3 Nh5 5. Bg5 h6 6. Bh4 g5 7. Nfd2 Nf4 8. exf4 gxh4 9. Nc3 e6 10. d5 exd5 11. Qf3 Qf6 12. 0-0-0 c6 13. Bc4 dxc4 14. Nxc4 d5 15. Rhe1+ Be7 16. Ne3 Nd7 17. Rxd5 0-0-0 18. Ng4 Qg6 19. Rxe7 cxd5 20. Nb5 Kb8 21. Qc3 Rc8 22. Qd2 Qxg4 23. f3 Qg6 24. Rxd7 Qc6 0-1

[Event "Chicago op 32nd"]
[Site "Chicago"]
[Date "2023.05.29"]
[Round "9"]
[White "Posthuma, Joshua G"]
[Black "Liu, Eric"]
[Result "1/2-1/2"]
[ECO "E90"]
[WhiteElo "2457"]
[BlackElo "2299"]
[PlyCount "155"]
[EventDate "2023.05.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. e4 c6 6. Be2 g6 7. 0-0 Bg7 8. d5 c5 9. h4 0-0 10. Nh2 Kh8 11. g4 Ng8 12. g5 f6 13. Bg4 fxg5 14. hxg5 Rf4 15. Bxf4 exf4 16. Nf3 Nb6 17. Bxc8 Qxc8 18. Nd2 Qh3 19. Qf3 Qxf3 20. Nxf3 Nxc4 21. Rac1 a6 22. b3 Ne5 23. Nxe5 Bxe5 24. Kg2 b5 25. Rh1 Kg7 26. Ne2 h6 27. gxh6+ Nxh6 28. Rh3 g5 29. Rch1 Nf7 30. Nc1 Kg6 31. Nd3 Bg7 32. Rc1 Re8 33. f3 Bd4 34. Nf2 Bb2 35. Rc2 Bd4 36. Ng4 a5 37. Rh1 b4 38. Kf1 a4 39. Ke2 Ra8 40. Kd3 a3 41. Rch2 Bg7 42. Kc4 Rb8 43. Rh7 Rb6 44. e5 dxe5 45. Kxc5 Rb8 46. d6 Bf8 47. Rxf7 Kxf7 48. Nxe5+ Ke6 49. Nc4 Rc8+ 50. Kxb4 Bxd6+ 51. Nxd6 Kxd6 52. Kxa3 Ke5 53. Rg1 Rg8 54. Rd1 Ra8+ 55. Kb2 Rh8 56. a4 Rh3 57. Rf1 Kd4 58. a5 Ke3 59. b4 Ke2 60. Rg1 Rg3 61. a6 Rxg1 62. a7 Kxf3 63. a8Q+ Kg3 64. Qd5 g4 65. Qe5 Kf3 66. b5 g3 67. Qh5+ Kg2 68. b6 f3 69. b7 f2 70. Qd5+ Kh2 71. Qh5+ Kg2 72. Qd5+ Kh2 73. Qd2 Rg2 74. Qh6+ Kg1 75. Qe3 Kh1 76. Qh6+ Kg1 77. Qe3 Kh1 78. Qh6+ 1/2-1/2

[Event "Chicago op 32nd"]
[Site "Chicago"]
[Date "2023.05.28"]
[Round "6"]
[White "Amburgy, Ryan"]
[Black "Posthuma, Joshua G"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2246"]
[BlackElo "2457"]
[PlyCount "105"]
[EventDate "2023.05.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[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. Nf3 Nf6 4. Nc3 a6 5. e3 Bf5 6. Ne5 Nbd7 7. Qb3 Qc7 8. cxd5 Nxe5 9. dxe5 Nxd5 10. Bc4 e6 11. e4 Nxc3 12. exf5 Nd5 13. Bxd5 Qxe5+ 14. Be3 Qxd5 15. Qxb7 c5 16. Qb6 exf5 17. 0-0 Be7 18. Rad1 Qe6 19. Bxc5 Qxb6 20. Bxb6 0-0 21. Rfe1 Bf6 22. Bd4 Bxd4 23. Rxd4 Rfd8 24. Red1 Rxd4 25. Rxd4 Kf8 26. g3 Ke7 27. Rb4 Ra7 28. Rb6 Kd7 29. Kg2 Kc7 30. Rb3 Kc6 31. Kf3 Rd7 32. h4 Rd4 33. Rc3+ Kb7 34. Re3 Rd7 35. Kf4 Rd2 36. Re7+ Kb6 37. f3 Rxb2 38. Rxf7 Rxa2 39. Rxg7 a5 40. Rxh7 a4 41. Rh8 Rc2 42. Ra8 Rc4+ 43. Kxf5 Kb7 44. Re8 a3 45. Re2 Ra4 46. Ra2 Kc6 47. h5 Kc5 48. h6 Kb4 49. h7 Ra5+ 50. Kg4 Ra8 51. Rh2 Rh8 52. Kg5 Kb3 53. Kg6 1-0

[Event "Chicago op 32nd"]
[Site "Chicago"]
[Date "2023.05.28"]
[Round "7"]
[White "Posthuma, Joshua G"]
[Black "Atwell, Rose"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2457"]
[BlackElo "2108"]
[PlyCount "81"]
[EventDate "2023.05.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Bb4+ 5. Nd2 0-0 6. Ngf3 b6 7. 0-0 Bb7 8. Ne5 Nbd7 9. Qa4 Bxd2 10. Bxd2 Nxe5 11. dxe5 Nd7 12. Bc3 Nc5 13. Qc2 dxc4 14. Rfd1 Qe7 15. Bxb7 Nxb7 16. Qe4 c5 17. Qxc4 a6 18. a4 Qc7 19. b4 Rfc8 20. b5 a5 21. Qg4 Rd8 22. e4 Rxd1+ 23. Rxd1 Rd8 24. Rd6 Rd7 25. Rc6 Qd8 26. Kg2 c4 27. Qh4 g5 28. Qh6 Rd3 29. Rxc4 Nc5 30. Bxa5 Qa8 31. Qxg5+ Kh8 32. Qf6+ Kg8 33. Qg5+ Kh8 34. Qf6+ Kg8 35. Bxb6 Nxe4 36. Qf4 Nc5+ 37. Kh3 Nd7 38. Qg5+ Kh8 39. Rg4 Qf8 40. Bd8 f5 41. exf6 1-0

[Event "Chicago op 32nd"]
[Site "Chicago"]
[Date "2023.05.27"]
[Round "4"]
[White "Lin, Dachey"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "A37"]
[WhiteElo "2299"]
[BlackElo "2457"]
[PlyCount "138"]
[EventDate "2023.05.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. a3 d6 6. Rb1 a5 7. Nf3 e5 8. 0-0 Nge7 9. Ne1 Be6 10. d3 0-0 11. Bg5 f6 12. Be3 Rb8 13. Nc2 Nd4 14. Bd2 d5 15. cxd5 Nxd5 16. Nxd5 Bxd5 17. Bxa5 b6 18. Bxd5+ Qxd5 19. Bc3 f5 20. Ne3 Qe6 21. b4 f4 22. Bxd4 exd4 23. Ng2 fxg3 24. hxg3 Rbe8 25. bxc5 bxc5 26. Rb5 Qa2 27. Re1 Qxa3 28. Qc2 Rf5 29. Nh4 Rh5 30. Reb1 Qa8 31. Rb7 Rhe5 32. Qc4+ Kh8 33. Qf7 Rg8 34. Ra7 Qe8 35. Qxe8 Rexe8 36. Kf1 Ra8 37. Rc7 Rgc8 38. Rbb7 Rxc7 39. Rxc7 Bf8 40. Nf3 Ra1+ 41. Kg2 Ra2 42. Ng5 Rxe2 43. Kf3 Re7 44. Rxc5 h6 45. Rc8 Kg7 46. Ne4 Rf7+ 47. Ke2 Rd7 48. g4 Bd6 49. Rc6 Bb8 50. Nc5 Re7+ 51. Kf3 Rf7+ 52. Kg2 Be5 53. Ne6+ Kh7 54. Rc5 Bf6 55. Rd5 Ra7 56. g5 hxg5 57. Nxd4 Bxd4 58. Rxd4 Kg7 59. Re4 Ra3 60. Re3 Kf6 61. Kf3 Kf5 62. d4 g4+ 63. Kg3 Ra5 64. Rd3 Rd5 65. Rd1 Ke4 66. Kxg4 Rxd4 67. Re1+ Kd5+ 68. f4 Re4 69. Rxe4 Kxe4 1/2-1/2

[Event "Chicago op 32nd"]
[Site "Chicago"]
[Date "2023.05.27"]
[Round "5"]
[White "Posthuma, Joshua G"]
[Black "Adewumi, Tanitoluwa"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2457"]
[BlackElo "2283"]
[PlyCount "109"]
[EventDate "2023.05.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Bb4+ 5. c3 Bd6 6. 0-0 0-0 7. c4 Nbd7 8. Nbd2 b6 9. e4 Nxe4 10. Nxe4 dxe4 11. Ng5 Nf6 12. Nxe4 Nxe4 13. Bxe4 Rb8 14. Qh5 g6 15. Qf3 f5 16. Bc6 Qf6 17. Bh6 Rd8 18. Rad1 g5 19. Qh5 Be7 20. f4 gxf4 21. gxf4 Qg6+ 22. Qxg6+ hxg6 23. Rf3 Kf7 24. Kg2 Bd7 25. Bxd7 Rxd7 26. Rfd3 Rh8 27. d5 exd5 28. Bg5 Bxg5 29. fxg5 Rh5 30. Rxd5 Rxg5+ 31. Kf3 Rxd5 32. cxd5 Rh5 33. Kg3 Rg5+ 34. Kf3 Ke7 35. Rc1 Kd7 36. Rc6 Rg1 37. b3 g5 38. Rg6 g4+ 39. Kf4 Rf1+ 40. Ke5 Rf2 41. Rg7+ Kc8 42. Rg8+ Kb7 43. Rg7 Rxh2 44. d6 Rc2 45. Kxf5 Rc6 46. dxc7 Rxc7 47. Rxg4 Rc5+ 48. Ke4 Rc2 49. Kd3 Rxa2 50. Kc3 a5 51. b4 a4 52. b5 a3 53. Kb3 Ra1 54. Rg7+ Kb8 55. Rh7 1/2-1/2

[Event "Toronto Excelsior GM 03"]
[Site "Toronto"]
[Date "2023.03.17"]
[Round "9"]
[White "Atanasov, Anthony"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2361"]
[BlackElo "2441"]
[PlyCount "130"]
[EventDate "2023.03.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CAN"]
[EventCategory "7"]
[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. Bd3 Nc6 5. c3 Qc7 6. h3 Nf6 7. Nf3 g6 8. Qc2 Nh5 9. 0-0 Nf4 10. Bb5 Bg7 11. Re1 0-0 12. Bxc6 bxc6 13. Ne5 Bf5 14. Qd1 Ne6 15. Ng4 Bxg4 16. Qxg4 c5 17. dxc5 Nxc5 18. Qe2 e5 19. Rd1 Rad8 20. Bg5 Rd7 21. Na3 f5 22. Be3 Ne6 23. Qa6 Rd6 24. Qa4 a6 25. f3 Rfd8 26. Rac1 e4 27. fxe4 dxe4 28. Rxd6 Qxd6 29. Nc4 Qd5 30. Bb6 Rc8 31. Ne3 Qc6 32. Qxc6 Rxc6 33. Nd5 Rd6 34. c4 Rxb6 35. Nxb6 Bd4+ 36. Kf1 Bxb6 37. b4 Kf7 38. c5 Bc7 39. a4 Ke7 40. b5 axb5 41. axb5 Bf4 42. Rc4 Kd7 43. Ra4 Nxc5 44. Ra7+ Kc8 45. Rxh7 e3 46. Rg7 Ne4 47. Rxg6 Ng3+ 48. Ke1 Be5 49. Re6 Bc3+ 50. Kd1 e2+ 51. Rxe2 Nxe2 52. Kxe2 f4 53. Kd3 Be5 54. Ke4 Bb8 55. Kf5 Kd7 56. h4 Ke7 57. h5 Kf7 58. h6 Bc7 59. b6 Bb8 60. Kg5 Bd6 61. Kf5 Kg8 62. b7 Kh7 63. Kg5 Bb8 64. Kh5 Bc7 65. Kg5 Bb8 1/2-1/2

[Event "Toronto Excelsior GM 03"]
[Site "Toronto"]
[Date "2023.03.16"]
[Round "7"]
[White "Plotkin, Mark"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "B10"]
[WhiteElo "2365"]
[BlackElo "2441"]
[PlyCount "52"]
[EventDate "2023.03.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CAN"]
[EventCategory "7"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. d3 Qc7 4. Nc3 dxe4 5. dxe4 e5 6. Bc4 h6 7. 0-0 Nf6 8. a4 a5 9. Nh4 Na6 10. Be3 Nc5 11. Qf3 Ne6 12. Rad1 Ng5 13. Bxg5 hxg5 14. Nf5 g4 15. Qe3 g6 16. Qg5 Nd7 17. Nh4 Rh7 18. Nxg6 Rg7 19. Bxf7+ Kxf7 20. Qf5+ Kg8 21. Rd3 Bc5 22. Qh5 Nf8 23. Nxe5 Be7 24. Nc4 Be6 25. Qe5 Qxe5 26. Nxe5 Bf6 0-1

[Event "Toronto Excelsior GM 03"]
[Site "Toronto"]
[Date "2023.03.16"]
[Round "8"]
[White "Posthuma, Joshua G"]
[Black "Nagy, Gabor"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2441"]
[BlackElo "2497"]
[PlyCount "85"]
[EventDate "2023.03.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CAN"]
[EventCategory "7"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 a6 4. Nbd2 Nf6 5. g3 c5 6. Bg2 Nc6 7. 0-0 cxd4 8. cxd5 Nxd5 9. Nb3 Be7 10. Nbxd4 Nxd4 11. Nxd4 0-0 12. e4 Nb6 13. b3 a5 14. Be3 a4 15. Nb5 Nd7 16. Rc1 b6 17. e5 Ra5 18. Nd6 Ba6 19. b4 Rxe5 20. b5 Rxb5 21. Nxb5 Bxb5 22. Re1 Bb4 23. Qh5 Bc5 24. Red1 g6 25. Qh6 Qe7 26. Bxc5 Nxc5 27. Rd4 Rd8 28. Rcd1 Rxd4 29. Rxd4 Qf6 30. Qd2 Kg7 31. h4 Qe5 32. Rd6 a3 33. Rxb6 Na4 34. Rb7 Nc3 35. Kh2 h6 36. Qd8 Qf6 37. Qa5 Ba4 38. Qb4 Be8 39. Rb8 Nd5 40. Qxa3 Qxf2 41. Rxe8 Ne3 42. Qc3+ e5 43. Qxe5+ 1-0

[Event "Toronto Excelsior GM 03"]
[Site "Toronto"]
[Date "2023.03.15"]
[Round "5"]
[White "Ibarra Chami, Luis Fernando"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "A50"]
[WhiteElo "2447"]
[BlackElo "2441"]
[PlyCount "76"]
[EventDate "2023.03.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CAN"]
[EventCategory "7"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 a6 3. Nc3 c5 4. dxc5 e6 5. e4 Nc6 6. Be3 Qa5 7. Qa4 Ng4 8. Qxa5 Nxa5 9. Bd2 Bxc5 10. f3 Bf2+ 11. Ke2 Bxg1 12. Rxg1 Nxh2 13. c5 Nc4 14. Bf4 Nxf1 15. b3 g5 16. Bc7 Nce3 17. Na4 d5 18. Nb6 Bd7 19. Nxa8 Bb5+ 20. Kf2 Kd7 21. Be5 Rxa8 22. a4 Bd3 23. Bd4 g4 24. Bxe3 g3+ 25. Ke1 Nxe3 26. Kd2 Nc2 27. Kxd3 Nxa1 28. Rxa1 Kc6 29. Rh1 dxe4+ 30. fxe4 Kxc5 31. Rxh7 Rf8 32. Kc3 b5 33. axb5 axb5 34. Rh5+ f5 35. Rg5 b4+ 36. Kd3 Rd8+ 37. Ke3 Rf8 38. Kd3 Rd8+ 1/2-1/2

[Event "Toronto Excelsior GM 03"]
[Site "Toronto"]
[Date "2023.03.15"]
[Round "6"]
[White "Posthuma, Joshua G"]
[Black "Ivanov, Mike"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2441"]
[BlackElo "2299"]
[PlyCount "99"]
[EventDate "2023.03.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CAN"]
[EventCategory "7"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. b3 d5 4. Bb2 c5 5. Bg2 Bg7 6. 0-0 0-0 7. c4 d4 8. b4 Re8 9. d3 e5 10. Nbd2 a5 11. bxc5 Na6 12. Ba3 Qc7 13. Rb1 Nxc5 14. Bxc5 Qxc5 15. Ng5 Qc7 16. Nge4 Nxe4 17. Nxe4 f5 18. Ng5 Bf6 19. Bd5+ Kg7 20. Nf3 Rb8 21. e4 dxe3 22. fxe3 Bd7 23. a4 Qc5 24. d4 exd4 25. exd4 Qc7 26. Qb3 b6 27. Rfe1 f4 28. Rxe8 Bxe8 29. g4 Bc6 30. g5 Bd8 31. Bxc6 Qxc6 32. Re1 Rc8 33. Ne5 Qe6 34. h4 Bc7 35. d5 Qf5 36. Nc6 Bd6 37. Qc3+ Kf7 38. Ne5+ Bxe5 39. Rxe5 Qg4+ 40. Kf2 Qxh4+ 41. Ke2 Qg4+ 42. Kd2 Qg2+ 43. Kd1 Qg4+ 44. Kd2 f3 45. Qe3 Qxc4 46. Rf5+ gxf5 47. Qe6+ Kg7 48. Qf6+ Kg8 49. Qe6+ Kf8 50. Qf6+ 1/2-1/2

[Event "Toronto Excelsior GM 03"]
[Site "Toronto"]
[Date "2023.03.14"]
[Round "3"]
[White "Noritsyn, Nikolay"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2460"]
[BlackElo "2441"]
[PlyCount "108"]
[EventDate "2023.03.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CAN"]
[EventCategory "7"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. c3 Nf6 6. Re1 0-0 7. h3 e5 8. a3 a6 9. Bxc6 dxc6 10. d3 Re8 11. Qc2 a5 12. Nbd2 Nh5 13. Nf1 b6 14. Be3 Ra7 15. b4 Ba6 16. Red1 Rd7 17. bxa5 bxa5 18. c4 Nf4 19. Bxc5 Nxd3 20. Be3 Bf8 21. N1h2 h5 22. Kh1 Bxc4 23. g4 a4 24. Qxc4 Nxf2+ 25. Bxf2 Rxd1+ 26. Rxd1 Qxd1+ 27. Kg2 Re6 28. gxh5 gxh5 29. Nh4 Bxa3 30. N2f3 Be7 31. Nf5 a3 32. Nxe5 Rxe5 33. Nh6+ Kh7 34. Qxf7+ Kxh6 35. Be3+ Rg5+ 36. Bxg5+ Bxg5 37. Qf8+ Kg6 38. Qf5+ Kg7 39. Qxg5+ Kf7 40. Qf5+ Ke7 41. Qe5+ Kd7 42. Qf5+ Ke7 43. Qe5+ Kd7 44. Qf5+ Kd6 45. Qf8+ Kc7 46. Qe7+ Kb8 47. Qf8+ Kb7 48. Qe7+ Kb6 49. Qb4+ Kc7 50. Qe7+ Qd7 51. Qxa3 Qd2+ 52. Kf3 Qd1+ 53. Kf2 Qd4+ 54. Kf3 Qd1+ 1/2-1/2

[Event "Toronto Excelsior GM 03"]
[Site "Toronto"]
[Date "2023.03.14"]
[Round "4"]
[White "Posthuma, Joshua G"]
[Black "Dukic, Zachary"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2441"]
[BlackElo "2238"]
[PlyCount "85"]
[EventDate "2023.03.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CAN"]
[EventCategory "7"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nd7 3. d4 Nb6 4. Bg2 Bf5 5. Nh4 e6 6. Nxf5 exf5 7. Nd2 c6 8. c4 Bb4 9. cxd5 cxd5 10. 0-0 Ne7 11. Nb3 Rc8 12. Nc5 0-0 13. Nxb7 Qd7 14. Bd2 Bxd2 15. Nc5 Rxc5 16. dxc5 Nc4 17. b3 Bc3 18. bxc4 Bxa1 19. Qxa1 dxc4 20. Rc1 Rd8 21. Rxc4 Qd1+ 22. Qxd1 Rxd1+ 23. Bf1 Nc6 24. f4 Kf8 25. Kf2 Ke7 26. Bg2 Rd4 27. Rc3 Kd7 28. Rd3 Rxd3 29. exd3 Nb4 30. Ke3 Nxa2 31. Bd5 Nb4 32. Bxf7 Kc6 33. Kd4 Nc2+ 34. Kc3 Ne3 35. d4 a5 36. Kd3 Nf1 37. Be6 a4 38. Bxf5 a3 39. Kc3 h6 40. Be4+ Kd7 41. Bd3 Nxh2 42. Be2 h5 43. Kb3 1-0

[Event "Toronto Excelsior GM 03"]
[Site "Toronto"]
[Date "2023.03.13"]
[Round "1"]
[White "Mikhalevski, Victor"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "2519"]
[BlackElo "2441"]
[PlyCount "123"]
[EventDate "2023.03.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CAN"]
[EventCategory "7"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 a6 3. e3 e6 4. Nc3 d5 5. a3 dxc4 6. Bxc4 b5 7. Ba2 Bb7 8. Nf3 c5 9. 0-0 Nbd7 10. Qe2 Be7 11. Rd1 Qb6 12. dxc5 Nxc5 13. b4 Nce4 14. Bb2 0-0 15. Nxe4 Bxe4 16. Ng5 Bd5 17. Qd3 Rfd8 18. Bxf6 Bxf6 19. Qxh7+ Kf8 20. Bxd5 Bxa1 21. Qh8+ Ke7 22. Qh5 g6 23. Qf3 Bf6 24. Nxe6 fxe6 25. Bxa8 Rxd1+ 26. Qxd1 Bb2 27. g3 Qd8 28. Qb3 Qd2 29. Bb7 g5 30. Kg2 Qc3 31. Qd1 Bxa3 32. Qh5 Qf6 33. Qh7+ Qf7 34. Qc2 Bxb4 35. Bxa6 Qf5 36. Qc7+ Kf6 37. Qd8+ Be7 38. Qd4+ Kf7 39. Bb7 b4 40. Be4 Qf6 41. Qd1 Kg7 42. Bc2 Qc3 43. Bb3 Kf6 44. Kh3 Qe5 45. Bc2 Qc5 46. Kg4 Qc4+ 47. Kh5 Kg7 48. f4 Qc5 49. Kg4 Qxe3 50. fxg5 Qxg5+ 51. Kh3 Kh6 52. Bb3 Qf5+ 53. Kg2 Qe4+ 54. Kh3 Qf5+ 55. Kg2 Qe4+ 56. Qf3 Qxf3+ 57. Kxf3 e5 58. Ke4 Bc5 59. Kxe5 Bg1 60. h4 Bh2 61. Kf4 Bxg3+ 62. Kxg3 1/2-1/2

[Event "Toronto Excelsior GM 03"]
[Site "Toronto"]
[Date "2023.03.13"]
[Round "2"]
[White "Posthuma, Joshua G"]
[Black "Sambuev, Bator"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2441"]
[BlackElo "2434"]
[PlyCount "129"]
[EventDate "2023.03.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CAN"]
[EventCategory "7"]
[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. g3 d5 4. Bg2 c6 5. Nf3 dxc4 6. Ne5 Bb4+ 7. Nc3 Nd5 8. 0-0 0-0 9. Qc2 Nd7 10. Nxc4 N5b6 11. Ne3 Nf6 12. Rd1 Qe7 13. f4 Bd7 14. a3 Bd6 15. b4 a5 16. bxa5 Rxa5 17. Rb1 Ra6 18. Ne4 Nxe4 19. Bxe4 c5 20. Bxb7 Ba4 21. Qe4 Ra7 22. Rxb6 Bxd1 23. Nxd1 cxd4 24. Ba6 Bc5 25. Bd3 g6 26. Rb3 Rd8 27. Nf2 Bxa3 28. Bxa3 Rxa3 29. Rb7 Ra1+ 30. Kg2 Rd7 31. Qxd4 Rxd4 32. Rxe7 Rda4 33. Rc7 Ra7 34. Rc8+ Kg7 35. g4 h6 36. h4 Ra8 37. Rc6 R8a4 38. Kf3 Rg1 39. Rc7 Rf1 40. g5 hxg5 41. hxg5 Rfa1 42. Ne4 Ra7 43. Rc8 Ra8 44. Rc6 R1a7 45. Nf6 Kf8 46. Ng4 Kg7 47. Ne5 Kg8 48. Nxg6 fxg6 49. Rxe6 Ra4 50. Rxg6+ Kf7 51. Rh6 Rd8 52. f5 Rdd4 53. Rh7+ Kg8 54. Rc7 Rf4+ 55. Ke3 Rg4 56. g6 Rg3+ 57. Kf2 Rgg4 58. Kf3 Raf4+ 59. Ke3 Rf1 60. Bc4+ Kf8 61. Rf7+ Kg8 62. Be6 Rg3+ 63. Kd4 Re1 64. Ke5 Rxe2+ 65. Kf6 1-0

[Event "Chicago op 31st"]
[Site "Chicago"]
[Date "2022.05.30"]
[Round "8"]
[White "Posthuma, Joshua G"]
[Black "Abrahamyan, Tatev"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2405"]
[BlackElo "2297"]
[PlyCount "75"]
[EventDate "2022.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 e6 3. c4 d5 4. d4 dxc4 5. Bg2 a6 6. 0-0 Nc6 7. Nbd2 Nxd4 8. Nxc4 Nxf3+ 9. Bxf3 Qxd1 10. Rxd1 Be7 11. Na5 Nd5 12. e4 Nb6 13. Bf4 c6 14. Bc7 Nd7 15. Nc4 0-0 16. e5 f6 17. Bg4 Kf7 18. f4 Ra7 19. Nd6+ Bxd6 20. Rxd6 f5 21. Be2 b5 22. Rxc6 Bb7 23. Rd6 Ke7 24. Ba5 Bd5 25. Bb4 Kf7 26. Rd1 Re8 27. a4 bxa4 28. Bxa6 Nb8 29. Bb5 Rc8 30. R1xd5 exd5 31. e6+ Kg8 32. Rxd5 Na6 33. e7 Kf7 34. Rxf5+ Kg6 35. g4 Nc7 36. Bd3 Raa8 37. Bc3 Ne8 38. Rf6# 1-0

[Event "Chicago op 31st"]
[Site "Chicago"]
[Date "2022.05.30"]
[Round "9"]
[White "Posthuma, Joshua G"]
[Black "Antipov, Mikhail Al"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2405"]
[BlackElo "2592"]
[PlyCount "31"]
[EventDate "2022.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. b3 d5 4. Bb2 c5 5. Bg2 Bg7 6. 0-0 0-0 7. d3 Qc7 8. c4 d4 9. b4 e5 10. bxc5 Nbd7 11. Nbd2 Nxc5 12. Nb3 Nfd7 13. Rb1 Rd8 14. Ba3 Rb8 15. Ng5 h6 16. Nxc5 1/2-1/2

[Event "Chicago op 31st"]
[Site "Chicago"]
[Date "2022.05.29"]
[Round "6"]
[White "Posthuma, Joshua G"]
[Black "Cordova, Emilio"]
[Result "0-1"]
[ECO "A31"]
[WhiteElo "2405"]
[BlackElo "2549"]
[PlyCount "73"]
[EventDate "2022.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 b6 5. Nc3 Bb7 6. f3 e6 7. e4 d6 8. Be3 a6 9. Be2 Nbd7 10. 0-0 Be7 11. Qd2 0-0 12. a4 Re8 13. a5 d5 14. exd5 exd5 15. Nxd5 Nxd5 16. cxd5 Nf6 17. Bc4 b5 18. Nxb5 axb5 19. Bxb5 Nxd5 20. Bxe8 Qxe8 21. a6 Rxa6 22. Rxa6 Bb4 23. Qd4 Bxa6 24. Ra1 Nxe3 25. Rxa6 Bf8 26. Ra5 Nc4 27. Ra1 Qe2 28. Qf2 Qe5 29. Ra8 Nxb2 30. g3 g6 31. f4 Qc3 32. f5 Nd1 33. Qe2 Qc5+ 34. Kh1 Qd5+ 35. Qg2 Nf2+ 36. Kg1 Nh3+ 37. Kf1 0-1

[Event "Chicago op 31st"]
[Site "Chicago"]
[Date "2022.05.29"]
[Round "7"]
[White "Shen, Christopher Y"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2295"]
[BlackElo "2405"]
[PlyCount "86"]
[EventDate "2022.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. Bg5 Bb7 4. Nbd2 g6 5. e3 Bg7 6. Bd3 c5 7. c3 d6 8. 0-0 Nbd7 9. e4 cxd4 10. cxd4 h6 11. Bh4 g5 12. Bg3 Nh5 13. Nb3 Nxg3 14. hxg3 0-0 15. Re1 e6 16. Qe2 a5 17. a4 Nb8 18. Rac1 Nc6 19. Bb5 Rc8 20. g4 Nb4 21. Rxc8 Qxc8 22. Rc1 Qa8 23. Nfd2 Rc8 24. Rc3 Nc2 25. Qd3 Rxc3 26. Qxc3 Nb4 27. Nc4 Qd8 28. Ncd2 Kf8 29. Nc1 Ke7 30. Nd3 Nxd3 31. Bxd3 Qc8 32. Nc4 Qc6 33. Na3 f5 34. gxf5 exf5 35. f3 fxe4 36. fxe4 Qxa4 37. Qc7+ Qd7 38. Qxb6 Qc6 39. Qa7 Qc1+ 40. Kh2 Qf4+ 41. Kh1 Qh4+ 42. Kg1 Qe1+ 43. Kh2 Qh4+ 1/2-1/2

[Event "Chicago op 31st"]
[Site "Chicago"]
[Date "2022.05.28"]
[Round "5"]
[White "Canty, James H"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2225"]
[BlackElo "2405"]
[PlyCount "70"]
[EventDate "2022.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4 7. cxd5 Nxd5 8. Qb3 Bxf3 9. gxf3 e6 10. Qxb7 Nxd4 11. Bb5+ Nxb5 12. Qc6+ Ke7 13. Qc5+ Nd6 14. Nxd5+ exd5 15. 0-0 h6 16. Qd4 Qb6 17. Qxd5 Qb7 18. Qe5+ Kd7 19. Rd1 Re8 20. Qf5+ Re6 21. Bf4 Ke8 22. Qa5 g5 23. Bg3 f6 24. Rac1 Rh7 25. Qa4+ Rd7 26. Rd3 Be7 27. Rb3 Qd5 28. Rb8+ Bd8 29. Rc7 Nf5 30. Rxd7 Qxd7 31. Qc2 Qd5 32. Qa4+ Kf7 33. Qxa7+ Re7 34. Qa8 Re1+ 35. Kg2 Qd3 0-1

[Event "Chicago op 31st"]
[Site "Chicago"]
[Date "2022.05.28"]
[Round "4"]
[White "Posthuma, Joshua G"]
[Black "Adewumi, Tanitoluwa"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "2405"]
[BlackElo "2305"]
[PlyCount "188"]
[EventDate "2022.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. e3 g6 5. Nc3 Bg7 6. Bd3 0-0 7. 0-0 Re8 8. Bd2 Nbd7 9. cxd5 cxd5 10. Rc1 e5 11. dxe5 Nxe5 12. Nxe5 Rxe5 13. Ne2 Ne4 14. Bxe4 dxe4 15. Bc3 Rd5 16. Qa4 Bf5 17. Bxg7 Kxg7 18. Rfd1 Rxd1+ 19. Rxd1 Qf6 20. Nc3 a6 21. h3 h5 22. Qb4 b5 23. Nxe4 Bxe4 24. Qxe4 Rc8 25. Rd2 Rc5 26. Qe8 Qc6 27. Rd7 Qf6 28. Rd8 Rc1+ 29. Kh2 Kh6 30. Qf8+ Qg7 31. Kg3 Qxf8 32. Rxf8 Kg7 33. Ra8 Rc2 34. Rxa6 Rxb2 35. e4 b4 36. e5 b3 37. axb3 Rxb3+ 38. f3 Re3 39. Kf4 Re2 40. g4 hxg4 41. hxg4 g5+ 42. Kxg5 Rxe5+ 43. Kh4 f6 44. Ra7+ Kh6 45. f4 Re4 46. Kg3 Re3+ 47. Kf2 Rb3 48. Ra6 Kg7 49. f5 Rc3 50. Re6 Kf7 51. Re3 Rc2+ 52. Kg3 Rc7 53. Ra3 Kg7 54. Kh4 Rc1 55. Ra7+ Kh6 56. Ra8 Rh1+ 57. Kg3 Rg1+ 58. Kf3 Kg7 59. Ra6 Rf1+ 60. Kg2 Rb1 61. Rd6 Rb3 62. Kf2 Ra3 63. Re6 Rb3 64. Re3 Rb1 65. Kf3 Rf1+ 66. Ke4 Rg1 67. Kd5 Kf7 68. Re4 Rd1+ 69. Rd4 Re1 70. Rc4 Rd1+ 71. Ke4 Kg7 72. Rc7+ Kh6 73. Rf7 Rd6 74. Re7 Rd1 75. Rf7 Rd6 76. Ke3 Ra6 77. Kd4 Kg5 78. Rg7+ Kf4 79. Kd5 Rb6 80. Rg6 Ra6 81. Kc5 Ke5 82. Rg8 Kf4 83. Rg7 Ke5 84. Kb5 Rd6 85. Re7+ Kf4 86. Re6 Rd8 87. Rxf6 Kxg4 88. Kc5 Kg5 89. Rf7 Rd1 90. Kc6 Rf1 91. Rg7+ Kf6 92. Rg8 Rxf5 93. Rf8+ Ke6 94. Rxf5 Kxf5 1/2-1/2

[Event "Chicago op 31st"]
[Site "Chicago"]
[Date "2022.05.27"]
[Round "3"]
[White "Gareyev, Timur"]
[Black "Posthuma, Joshua G"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2565"]
[BlackElo "2405"]
[PlyCount "59"]
[EventDate "2022.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 c5 3. d5 b5 4. e4 Nxe4 5. Qf3 Qa5+ 6. Nd2 Nxd2 7. Bxd2 Qb6 8. Nh3 Bb7 9. c4 b4 10. Bd3 Qf6 11. Qe2 Qxb2 12. 0-0 d6 13. a3 a5 14. Rab1 Qe5 15. Qd1 g6 16. Re1 Qg7 17. axb4 axb4 18. Bc1 Qg8 19. Bb2 Nd7 20. Ra1 Rb8 21. Qe2 h6 22. Nf4 Kd8 23. Bxg6 fxg6 24. Ne6+ Kc8 25. Ra7 Nb6 26. Be5 Ra8 27. Qa2 dxe5 28. Qa5 Rxa7 29. Qxb6 Qxe6 30. Qxe6+ 1-0

[Event "Chicago op 31st"]
[Site "Chicago"]
[Date "2022.05.27"]
[Round "2"]
[White "Posthuma, Joshua G"]
[Black "Chen, Ryo"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "2405"]
[BlackElo "2265"]
[PlyCount "83"]
[EventDate "2022.05.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 0-0 5. Bg2 d6 6. d4 b5 7. Na3 b4 8. Nc4 a5 9. a3 Bb7 10. axb4 axb4 11. Rxa8 Bxa8 12. 0-0 Nbd7 13. Qd2 Qb8 14. Ra1 c5 15. Qe3 Be4 16. Bh3 Bxf3 17. Qxf3 d5 18. Na5 Qc7 19. Bxd7 Qxd7 20. dxc5 Qc7 21. c6 Ra8 22. Qf4 Qxf4 23. gxf4 Ne8 24. Bxg7 Kxg7 25. Ra4 Ra6 26. Kf1 Kf6 27. Ke1 Nc7 28. Kd2 e6 29. Kd3 Nb5 30. Nb7 Rxc6 31. Rxb4 Nc7 32. Nd8 Rd6 33. Rb7 Rxd8 34. Rxc7 Ra8 35. b4 Ra1 36. Kd4 Rb1 37. Kc5 Rb2 38. Kb5 d4 39. Rc4 e5 40. Kc5 exf4 41. Kxd4 Ke6 42. Kc3 1-0

[Event "Saint Louis Congress IM"]
[Site "Saint Louis"]
[Date "2022.05.24"]
[Round "9"]
[White "Grabinsky, Aaron"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "2401"]
[BlackElo "2405"]
[PlyCount "135"]
[EventDate "2022.05.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Qe2 Nxe4 6. Qxe4 Be6 7. c4 Nd7 8. d4 Nf6 9. Qh4 Bf5 10. Be2 e6 11. 0-0 Be7 12. Qf4 0-0 13. h3 a5 14. Rd1 Bc2 15. Re1 Qb6 16. Qe3 Rfd8 17. Bd3 Bxd3 18. Qxd3 a4 19. Qc2 Qa6 20. Be3 b5 21. Rac1 bxc4 22. Qxc4 Rdb8 23. Qc2 Nd5 24. a3 Rb5 25. Rcd1 Qb7 26. Bc1 Bf6 27. Ne5 Ne7 28. Re4 Nf5 29. Qxc6 Rc8 30. Qxb7 Rxb7 31. g4 Nd6 32. Re2 h6 33. Kf1 Bxe5 34. Rxe5 Nc4 35. Rc5 Rxc5 36. dxc5 Rc7 37. Rd3 Rxc5 38. Rc3 f5 39. gxf5 exf5 40. Ke2 g5 41. h4 gxh4 42. Rh3 Nxb2 43. Bxh6 Rc2+ 44. Kf1 Nc4 45. Rxh4 Kf7 46. Ke1 Nxa3 47. Rxa4 Nb5 48. Ra6 Nd4 49. Be3 Ne6 50. Kf1 f4 51. Ba7 Rc8 52. Rd6 Rd8 53. Rc6 Ra8 54. Bb6 Ra6 55. Kg2 Ng5 56. Rc7+ Kg6 57. Rb7 Ra2 58. Bd4 Kf5 59. Rb8 Rd2 60. Rb4 Ne4 61. Ba7 Ra2 62. Rb7 Ng5 63. Bb8 f3+ 64. Kg3 Ne4+ 65. Kxf3 Rxf2+ 66. Ke3 Rc2 67. Re7 Nf6 68. Kd3 1/2-1/2

[Event "Saint Louis Congress IM"]
[Site "Saint Louis"]
[Date "2022.05.23"]
[Round "8"]
[White "Posthuma, Joshua G"]
[Black "Antova, Gabriela"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "2405"]
[BlackElo "2293"]
[PlyCount "81"]
[EventDate "2022.05.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 Nbd7 6. Bd3 Be7 7. 0-0 0-0 8. e4 dxe4 9. Nxe4 c5 10. Nxc5 Nxc5 11. dxc5 Bxc5 12. Qe2 b6 13. Rd1 Qe7 14. Bg5 Bb7 15. Ne5 Rfd8 16. Rd2 h6 17. Be3 Rd6 18. a3 a5 19. Rad1 Rad8 20. h3 Ba8 21. Bc2 Qb7 22. Nf3 Rxd2 23. Rxd2 Qc7 24. Bf4 Rxd2 25. Qxd2 Qe7 26. Ne5 Ne4 27. Bxe4 Bxe4 28. Nd7 a4 29. Be3 Bxe3 30. fxe3 Bc6 31. Nxb6 Qc5 32. Nc8 Qxc4 33. Qd8+ Kh7 34. Ne7 Be8 35. Qxe8 Qc1+ 36. Kf2 Qd2+ 37. Kf3 Qd1+ 38. Kg3 Qd6+ 39. Kh4 g5+ 40. Kh5 Qd1+ 41. g4 1-0

[Event "Saint Louis Congress IM"]
[Site "Saint Louis"]
[Date "2022.05.22"]
[Round "7"]
[White "Marek, Matyas"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2363"]
[BlackElo "2405"]
[PlyCount "7"]
[EventDate "2022.05.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 1/2-1/2

[Event "Saint Louis Congress IM"]
[Site "Saint Louis"]
[Date "2022.05.22"]
[Round "6"]
[White "Posthuma, Joshua G"]
[Black "Ezra, Paul Chambers"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2405"]
[BlackElo "2232"]
[PlyCount "124"]
[EventDate "2022.05.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. e3 e6 5. Nbd2 c5 6. cxd5 exd5 7. Bb5+ Nc6 8. Ne5 Bd7 9. Nxd7 Qxd7 10. Nf3 Bd6 11. dxc5 Bxc5 12. 0-0 0-0 13. b3 Qd6 14. Bb2 Ne4 15. Bxc6 bxc6 16. Rc1 Rac8 17. Nd4 f5 18. Rxc5 Qxc5 19. Ne6 Qe7 20. Nxf8 Rxf8 21. Qc2 Qe6 22. Rc1 Rc8 23. Bd4 Rc7 24. Qd3 c5 25. f3 c4 26. bxc4 dxc4 27. Qb1 Nd6 28. Qb8+ Qc8 29. Bxa7 Kf7 30. Qxc8 Rxc8 31. Bd4 g6 32. a4 Ke6 33. Kf2 Kd5 34. Ke2 f4 35. Rd1 fxe3 36. Bxe3+ Kc6 37. g4 Ra8 38. Ra1 Kd5 39. a5 c3 40. Kd3 Nc4 41. a6 Nxe3 42. Ra5+ Kc6 43. Kxe3 Kb6 44. Ra1 g5 45. Kd3 Ka7 46. Ra5 Rc8 47. Kc2 h6 48. Ra3 Re8 49. Rxc3 Re2+ 50. Kd3 Rxh2 51. Ra3 h5 52. Ke4 h4 53. Kf5 Rg2 54. Kxg5 h3 55. f4 h2 56. Rh3 Kxa6 57. f5 Kb6 58. Kf4 Kc6 59. Kf3 Ra2 60. Kg3 Kd6 61. Rxh2 Ra3+ 62. Kf4 Kd5 1-0

[Event "Saint Louis Congress IM"]
[Site "Saint Louis"]
[Date "2022.05.21"]
[Round "4"]
[White "Posthuma, Joshua G"]
[Black "Rodriguez Rivera, Pedro"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "2405"]
[BlackElo "2197"]
[PlyCount "103"]
[EventDate "2022.05.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 d6 5. d4 c6 6. Bg2 a5 7. 0-0 0-0 8. a4 Na6 9. Nbd2 Nd7 10. e4 Re8 11. Re1 Nf8 12. Nc4 Qc7 13. Qd2 d5 14. exd5 cxd5 15. Na3 Qb6 16. Nb5 Nc7 17. c4 Nxb5 18. axb5 Be6 19. Bf1 dxc4 20. bxc4 Rec8 21. Ra4 Qd8 22. Bc3 b6 23. Ne5 Bxe5 24. Rxe5 Nd7 25. Re4 Qf8 26. Rxe6 fxe6 27. Bh3 Qf7 28. d5 Nc5 29. Qd4 Qf6 30. Qe3 Qf8 31. Bxe6+ Nxe6 32. Qxe6+ Qf7 33. Qxb6 Rf8 34. Qd4 Qf6 35. Qxf6 exf6 36. c5 Rfd8 37. d6 Kf7 38. b6 Ke6 39. c6 Kxd6 40. c7 Kc6 41. cxd8Q Rxd8 42. Bxa5 Rd1+ 43. Kg2 Rb1 44. Rb4 Rxb4 45. Bxb4 Kxb6 46. Kf3 Kc6 47. Bc3 f5 48. Kf4 Kd5 49. Kg5 Ke4 50. Kh6 Kf3 51. Kxh7 g5 52. Kg6 1-0

[Event "Saint Louis Congress IM"]
[Site "Saint Louis"]
[Date "2022.05.21"]
[Round "5"]
[White "Yu, Jennifer R"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "A50"]
[WhiteElo "2257"]
[BlackElo "2405"]
[PlyCount "78"]
[EventDate "2022.05.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Qc2 d5 5. cxd5 Nxd5 6. Nf3 e6 7. e4 Nxc3 8. bxc3 Be7 9. Bf4 Nd7 10. Rd1 g5 11. Bg3 h5 12. h4 g4 13. Ng5 Bxg5 14. hxg5 Qxg5 15. Bxc7 Rc8 16. Bd6 h4 17. Rd2 Rh6 18. Qd3 Rc6 19. Bb4 a5 20. Ba3 f5 21. d5 fxe4 22. Qb5 exd5 23. Rxd5 Qg7 24. Rd4 g3 25. Rxe4+ Rce6 26. Rxe6+ Rxe6+ 27. Kd2 Qh6+ 28. Kc2 Re5 29. Qc4 Be4+ 30. Bd3 Bxd3+ 31. Kxd3 Qg6+ 32. Kd2 Nc5 33. Bxc5 Rxc5 34. Re1+ Kd7 35. Qxh4 Rd5+ 36. Kc1 Qd3 37. Qa4+ Kd6 38. Qc2 gxf2 39. Qxf2 Qxc3+ 0-1

[Event "Saint Louis Congress IM"]
[Site "Saint Louis"]
[Date "2022.05.20"]
[Round "3"]
[White "Lee, Alice"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "A50"]
[WhiteElo "2344"]
[BlackElo "2405"]
[PlyCount "182"]
[EventDate "2022.05.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. d5 e6 5. a3 Bd6 6. Nf3 0-0 7. g3 c6 8. Bg2 Na6 9. 0-0 cxd5 10. cxd5 Nxd5 11. Nxd5 exd5 12. b4 Nc7 13. Bb2 Re8 14. Re1 a5 15. Qd2 axb4 16. axb4 Qe7 17. Qd4 Ne6 18. Qxb6 Bxb4 19. Reb1 Bc6 20. Ne5 Qc5 21. Qxc5 Bxc5 22. Rd1 Rxa1 23. Bxa1 Ra8 24. Bc3 d4 25. Ba1 Bxg2 26. Kxg2 d6 27. Nf3 Ra4 28. Kf1 Kf8 29. Bb2 Ke7 30. Rd3 Rb4 31. Rd2 Rc4 32. Rd3 g5 33. h3 h5 34. Rd1 g4 35. hxg4 hxg4 36. Ne1 Bb4 37. Nd3 Bc3 38. Bc1 Ra4 39. Bf4 Nc5 40. Bg5+ Ke6 41. Bf4 Kd5 42. Rb1 Kc4 43. Nc1 d5 44. Bd6 Ne4 45. Bf4 Bd2 46. Nd3 Ra7 47. Rb8 Bxf4 48. Nxf4 Nc3 49. Rb2 Ra1+ 50. Kg2 Ra2 51. Rxa2 Nxa2 52. Nd3 Kc3 53. Kf1 Nb4 54. Nf4 Kd2 55. Ng2 d3 56. exd3 d4 57. Nf4 f5 58. Ng2 Kxd3 59. Nh4 Ke4 60. Ke2 d3+ 61. Kd2 Nc6 62. Ng2 Ne5 63. Ne3 Nf3+ 64. Kc3 Ng1 65. Kd2 Nh3 66. Ke1 Ke5 67. Nc4+ Kd5 68. Nd2 Kd4 69. Nf1 Ng5 70. Ne3 Ke4 71. Kd2 Nf3+ 72. Kc3 Nd4 73. Nd1 Ne6 74. Ne3 Ng7 75. Nd1 Nh5 76. Nb2 Kf3 77. Nxd3 Nf6 78. Kd2 Ne4+ 79. Ke1 Kg2 80. Nf4+ Kg1 81. Ne2+ Kg2 82. Nf4+ Kf3 83. Nd3 Nxf2 84. Nxf2 Kxg3 85. Kf1 f4 86. Nxg4 Kxg4 87. Kg2 f3+ 88. Kf2 Kf4 89. Kf1 Ke3 90. Ke1 f2+ 91. Kf1 Kf3 1/2-1/2

[Event "Saint Louis Congress IM"]
[Site "Saint Louis"]
[Date "2022.05.20"]
[Round "2"]
[White "Posthuma, Joshua G"]
[Black "Proleiko, Julian"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2405"]
[BlackElo "2204"]
[PlyCount "108"]
[EventDate "2022.05.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b5 3. Bg2 Bb7 4. 0-0 e6 5. d3 Be7 6. e4 d6 7. a4 a6 8. axb5 axb5 9. Rxa8 Bxa8 10. Na3 b4 11. Nc4 0-0 12. Bd2 d5 13. exd5 Nxd5 14. Qa1 Nd7 15. Qa5 b3 16. c3 N5b6 17. Be3 Nxc4 18. dxc4 Nb6 19. Qb5 Qe8 20. Bxb6 Qxb5 21. cxb5 cxb6 22. Nd4 Bxg2 23. Kxg2 Ra8 24. Nxb3 Ra2 25. Rb1 h5 26. Kf3 g5 27. Ke4 Bd6 28. Nc1 Ra5 29. c4 f5+ 30. Kd3 e5 31. Nb3 Ra4 32. f3 Kf7 33. Ra1 Rxa1 34. Nxa1 g4 35. Ke2 Bc5 36. Nc2 f4 37. gxf4 exf4 38. Ne1 Bg1 39. Nd3 g3 40. hxg3 fxg3 41. Kf1 Be3 42. Kg2 h4 43. b4 Bg5 44. c5 Bd8 45. Nf4 bxc5 46. bxc5 Ke7 47. Kh3 Kd7 48. Nd3 Be7 49. f4 Kc7 50. Nb4 Bxc5 51. Na6+ Kb6 52. Nxc5 Kxb5 53. Ne4 Kc4 54. Nxg3 Kd5 1-0

[Event "Saint Louis Congress IM"]
[Site "Saint Louis"]
[Date "2022.05.19"]
[Round "1"]
[White "Tokhirjonova, Gulruhbegim"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2337"]
[BlackElo "2405"]
[PlyCount "113"]
[EventDate "2022.05.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e5 4. 0-0 Bd6 5. c3 a6 6. Bxc6 dxc6 7. d4 exd4 8. cxd4 Bg4 9. dxc5 Bxc5 10. Qc2 Qe7 11. Nbd2 Nf6 12. e5 Nd7 13. Qb3 0-0-0 14. Re1 Rhe8 15. h3 Be6 16. Qc2 Bd5 17. a3 f6 18. b4 Bb6 19. Bb2 fxe5 20. Nxe5 Nxe5 21. Rxe5 Qh4 22. Nf3 Bxf3 23. Qf5+ Kb8 24. Qxf3 Rf8 25. Rf5 Rxf5 26. Qxf5 Qxf2+ 27. Qxf2 Bxf2+ 28. Kf1 Bd4 29. Bxd4 Rxd4 30. Ke2 a5 31. Ke3 Rd5 32. Rf1 axb4 33. axb4 Kc7 34. Rf4 b5 35. g4 g6 36. h4 c5 37. bxc5 Kc6 38. Rf7 b4 39. Rxh7 b3 40. Rh8 Kxc5 41. Rc8+ Kb4 42. Rb8+ Kc3 43. Rc8+ Kb2 44. Rc6 g5 45. hxg5 Rxg5 46. Kf4 Ra5 47. g5 Ka3 48. Rb6 Ra4+ 49. Ke5 b2 50. g6 Rg4 51. Kf6 Rb4 52. Rxb4 Kxb4 53. g7 b1Q 54. g8Q Qb2+ 55. Kf7 Qb3+ 56. Kg7 Qxg8+ 57. Kxg8 1/2-1/2

[Event "Titled Tuesday intern op 29th Mar Early"]
[Site "Chess.com INT"]
[Date "2022.03.29"]
[Round "5"]
[White "Atakhan, Abtin"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "A37"]
[WhiteElo "2357"]
[BlackElo "2389"]
[PlyCount "80"]
[EventDate "2022.03.29"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. Nc3 Nc6 5. Nf3 d6 6. d3 Bf5 7. Rb1 Qd7 8. a3 Bh3 9. Bxh3 Qxh3 10. Nd5 Qd7 11. Bd2 e6 12. Nc3 Nge7 13. h4 h6 14. b4 b6 15. b5 Nd4 16. Nh2 d5 17. e3 Ndf5 18. h5 g5 19. g4 Nh4 20. Nf3 d4 21. Ne4 dxe3 22. Bxe3 Ng2+ 23. Ke2 f5 24. Nxc5 bxc5 25. Bxc5 Nf4+ 26. Kf1 Qxd3+ 27. Qxd3 Nxd3 28. Bxe7 Kxe7 29. gxf5 exf5 30. Kg2 Rac8 31. b6 axb6 32. Rxb6 Rhd8 33. Rb7+ Kf8 34. Rhb1 Rxc4 35. Ra7 Nf4+ 36. Kg3 Nxh5+ 37. Kh2 Rc2 38. Rbb7 Rxf2+ 39. Kg1 Rxf3 40. Rf7+ Kg8 0-1

[Event "Titled Tuesday intern op 29th Mar Early"]
[Site "Chess.com INT"]
[Date "2022.03.29"]
[Round "7"]
[White "Chen, Qi B"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2485"]
[BlackElo "2389"]
[PlyCount "54"]
[EventDate "2022.03.29"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e5 4. 0-0 Bd6 5. d4 Nxd4 6. Bc4 h6 7. Nxd4 cxd4 8. c3 Bc5 9. b4 Bb6 10. Bb2 dxc3 11. Nxc3 Nf6 12. Nb5 0-0 13. Nd6 Qe7 14. a3 Ne8 15. Nf5 Qf6 16. Kh1 d5 17. Bxd5 Bxf5 18. exf5 Rd8 19. Qf3 Nd6 20. g4 Bd4 21. Bxd4 exd4 22. Rad1 b6 23. a4 Rfe8 24. Rd3 Re5 25. Bb3 Ne4 26. Rfd1 Qh4 27. Kg2 h5 0-1

[Event "Titled Tuesday intern op 29th Mar Early"]
[Site "Chess.com INT"]
[Date "2022.03.29"]
[Round "11"]
[White "Jaferian, Koosha"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2227"]
[BlackElo "2389"]
[PlyCount "103"]
[EventDate "2022.03.29"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. Nf3 g6 2. b3 Bg7 3. d4 c5 4. Bb2 Nc6 5. e3 d6 6. c4 Bg4 7. Be2 e6 8. 0-0 Nge7 9. Qd2 0-0 10. dxc5 dxc5 11. Bxg7 Kxg7 12. Qc3+ Kg8 13. Nbd2 f5 14. Rad1 Qc7 15. h3 Bh5 16. Rfe1 h6 17. Nf1 Rad8 18. Ng3 Bxf3 19. Bxf3 b6 20. Rxd8 Rxd8 21. Qf6 Qe5 22. Qxe5 Nxe5 23. Nf1 Kf7 24. Be2 N7c6 25. Rd1 Rxd1 26. Bxd1 Nd3 27. Bc2 Nc1 28. Bb1 Nb4 29. a3 Nc6 30. Nd2 Ne2+ 31. Kf1 Nc3 32. Bc2 b5 33. Ke1 b4 34. a4 a5 35. Nb1 Nxb1 36. Bxb1 Kf6 37. Ke2 e5 38. Bc2 g5 39. f3 Ke6 40. Kf2 Kf6 41. Ke2 Nd8 42. Kf2 Ne6 43. g3 f4 44. exf4 gxf4 45. g4 Kg5 46. Bd1 Nd4 47. Kg2 Kh4 48. Kh2 Ne6 49. Be2 Ng5 50. Bf1 Nxf3+ 51. Kg2 Nd4 52. Bd3 0-1

[Event "Titled Tuesday intern op 29th Mar Early"]
[Site "Chess.com INT"]
[Date "2022.03.29"]
[Round "2"]
[White "Kiltti, Jyrki"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2199"]
[BlackElo "2389"]
[PlyCount "64"]
[EventDate "2022.03.29"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. Nc3 g6 2. h4 Nf6 3. e4 d6 4. h5 Nxh5 5. Rxh5 gxh5 6. Qxh5 e6 7. Nf3 Qf6 8. d4 Qg6 9. Qh2 Nc6 10. Be3 Bd7 11. 0-0-0 0-0-0 12. Bd3 h5 13. e5 Qg4 14. Ne4 dxe5 15. Nf6 Qg7 16. dxe5 Be7 17. Bg5 Nd4 18. Bh4 Bc6 19. Nxd4 Rxd4 20. g3 Rhd8 21. f4 Bb5 22. Qe2 Bxd3 23. Rxd3 Rxd3 24. cxd3 Qg6 25. Kc2 Bxf6 26. Bxf6 Rd5 27. Bh4 b6 28. b4 c5 29. a3 c4 30. Kc3 Qxd3+ 31. Qxd3 cxd3 32. Kd2 Kb7 0-1

[Event "Titled Tuesday intern op 29th Mar Early"]
[Site "Chess.com INT"]
[Date "2022.03.29"]
[Round "6"]
[White "Posthuma, Joshua G"]
[Black "Aravindh, Chithambaram VR"]
[Result "0-1"]
[ECO "A70"]
[WhiteElo "2389"]
[BlackElo "2611"]
[PlyCount "68"]
[EventDate "2022.03.29"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. e4 c5 4. d5 d6 5. Bd3 Nf6 6. Nc3 0-0 7. h3 e6 8. Nf3 exd5 9. cxd5 b5 10. Nxb5 Nxe4 11. 0-0 Ba6 12. Qa4 Nf6 13. Rd1 Nxd5 14. Be4 Nb6 15. Qa5 d5 16. Bf4 Qc8 17. Bxd5 Nxd5 18. Rxd5 Nc6 19. Qa4 Nb4 20. Rd2 Qe8 21. Nc3 Qxa4 22. Nxa4 Nd3 23. Bd6 Rfc8 24. Rad1 c4 25. b3 c3 26. Rc2 Nb2 27. Rdc1 Nxa4 28. bxa4 Bd3 29. Be5 Bxe5 30. Nxe5 Bxc2 31. Rxc2 Rab8 32. Nd3 Rb1+ 33. Kh2 Rd1 34. Nb4 a5 0-1

[Event "Titled Tuesday intern op 29th Mar Early"]
[Site "Chess.com INT"]
[Date "2022.03.29"]
[Round "8"]
[White "Posthuma, Joshua G"]
[Black "Caruana, Fabiano"]
[Result "0-1"]
[ECO "E10"]
[WhiteElo "2389"]
[BlackElo "2781"]
[PlyCount "72"]
[EventDate "2022.03.29"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 Nc6 3. Nf3 e6 4. g3 g6 5. Bg2 Bg7 6. 0-0 d6 7. Nc3 0-0 8. b3 Re8 9. Bb2 e5 10. dxe5 dxe5 11. Qxd8 Rxd8 12. Rfd1 Bf5 13. Nd5 Ne8 14. Ng5 f6 15. Ne4 Bxe4 16. Bxe4 Kf7 17. g4 Bf8 18. Rd2 Bb4 19. Rd3 Bc5 20. Rad1 Rac8 21. b4 Bf8 22. b5 Nd4 23. Bxd4 exd4 24. Rxd4 Bc5 25. R4d3 Nd6 26. Nc3 Re8 27. Bd5+ Kg7 28. Na4 b6 29. Nxc5 bxc5 30. e3 Rcd8 31. Bc6 Rf8 32. Rc1 f5 33. h3 fxg4 34. hxg4 Nf7 35. Ra3 Ne5 36. Rxa7 Rd2 0-1

[Event "Titled Tuesday intern op 29th Mar Early"]
[Site "Chess.com INT"]
[Date "2022.03.29"]
[Round "3"]
[White "Posthuma, Joshua G"]
[Black "Demin, Vladimir"]
[Result "1-0"]
[ECO "E05"]
[WhiteElo "2389"]
[BlackElo "2430"]
[PlyCount "39"]
[EventDate "2022.03.29"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 dxc4 7. Qc2 b5 8. a4 Bb7 9. axb5 a6 10. Nc3 axb5 11. Rxa8 Bxa8 12. Nxb5 c5 13. Qxc4 Bd5 14. Qa4 Qb6 15. Nc3 Bc6 16. dxc5 Bxc5 17. Qh4 Nbd7 18. Na4 Bxa4 19. Qxa4 Nd5 20. Qxd7 1-0

[Event "Titled Tuesday intern op 29th Mar Early"]
[Site "Chess.com INT"]
[Date "2022.03.29"]
[Round "4"]
[White "Posthuma, Joshua G"]
[Black "Reprintsev, Alexander"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "2389"]
[BlackElo "2353"]
[PlyCount "123"]
[EventDate "2022.03.29"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 Bc5 4. Bg2 Nf6 5. e3 d5 6. cxd5 Nb4 7. d4 exd4 8. exd4 Be7 9. Nge2 Nbxd5 10. 0-0 c6 11. Nf4 Nxc3 12. bxc3 0-0 13. Re1 Bd6 14. c4 Bb4 15. Bd2 Bxd2 16. Qxd2 Bf5 17. d5 Rc8 18. Qb4 Qb6 19. Qxb6 axb6 20. Re7 Bd7 21. Nh5 Rfd8 22. Nxf6+ gxf6 23. Rb1 b5 24. Rxd7 Rxd7 25. Bh3 Rcc7 26. Bxd7 Rxd7 27. dxc6 bxc6 28. cxb5 cxb5 29. Rxb5 Ra7 30. Rb2 Ra3 31. Kf1 f5 32. Ke2 Kg7 33. Kd2 Kf6 34. Kc2 Kg5 35. Kb1 Rf3 36. a4 f4 37. a5 fxg3 38. hxg3 Rf6 39. Ra2 Ra6 40. Ra4 Kf5 41. Kc2 Ke5 42. Kc3 Kd5 43. Rh4 f5 44. Kb4 Ra7 45. Rh5 Rb7+ 46. Ka4 Rf7 47. Kb5 Rb7+ 48. Ka6 Rf7 49. Kb6 Rf6+ 50. Kb5 Rf8 51. Rxh7 Rb8+ 52. Ka4 Rb2 53. f4 Rb1 54. a6 Kc5 55. Rc7+ Kd6 56. Rc3 Ra1+ 57. Ra3 Rb1 58. a7 Kc5 59. a8Q Rb4+ 60. Ka5 Rb5+ 61. Ka6 Rb6+ 62. Ka7 1-0

[Event "Titled Tuesday intern op 29th Mar Early"]
[Site "Chess.com INT"]
[Date "2022.03.29"]
[Round "10"]
[White "Posthuma, Joshua G"]
[Black "Zemlyanskii, Ivan"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "2389"]
[BlackElo "2343"]
[PlyCount "69"]
[EventDate "2022.03.29"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Qd3 d5 7. exd5 exd5 8. Bg5 Bc5 9. Nf3 0-0 10. 0-0-0 Be6 11. Bxf6 Qxf6 12. Nxd5 Qh6+ 13. Qd2 Bxf2 14. Qxh6 gxh6 15. Bb5 Rad8 16. Bxc6 bxc6 17. Ne7+ Kg7 18. Nxc6 Rc8 19. Ncd4 Bg4 20. Rhf1 Be3+ 21. Kb1 Bh5 22. Nf5+ Kf6 23. Nxe3 Rfe8 24. Nd5+ Kg7 25. g4 Bg6 26. Rd2 Red8 27. Nh4 Be4 28. Nf5+ Kh8 29. Nfe7 Rc5 30. Nf6 Rxd2 31. Nxe4 Rcxc2 32. Nxd2 Rxd2 33. Rxf7 Rxh2 34. Nf5 h5 35. Rf8# 1-0

[Event "Titled Tuesday intern op 29th Mar Early"]
[Site "Chess.com INT"]
[Date "2022.03.29"]
[Round "9"]
[White "Tasev, Dejan"]
[Black "Posthuma, Joshua G"]
[Result "1-0"]
[ECO "B16"]
[WhiteElo "2188"]
[BlackElo "2389"]
[PlyCount "99"]
[EventDate "2022.03.29"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Bc4 Bf5 7. Ne2 e6 8. Ng3 Bg6 9. h4 h5 10. c3 Bd6 11. Qf3 Nd7 12. Ne4 Bxe4 13. Qxe4 f5 14. Qf3 Qb6 15. Qe2 0-0-0 16. Bg5 Rde8 17. 0-0-0 Qc7 18. g3 f4 19. Kb1 fxg3 20. fxg3 Bxg3 21. Rhf1 Nb6 22. Bb3 e5 23. Rxf7 Qd6 24. Qf3 e4 25. Qf5+ Kb8 26. c4 Qe6 27. Bf4+ Bxf4 28. Qxf4+ Ka8 29. Qc7 Qc8 30. Qxc8+ Nxc8 31. c5 Ne7 32. Rg1 e3 33. Bc4 Rhg8 34. Rxg8 Nxg8 35. Be2 Nh6 36. Rf6 Ng4 37. Rf4 a6 38. Kc2 Nf2 39. b4 Ne4 40. Bxh5 Ng3 41. Bxe8 e2 42. Kd2 a5 43. a3 axb4 44. axb4 Ka7 45. Rg4 Nf5 46. Kxe2 Ka6 47. Bd7 Ne7 48. Be6 Kb5 49. h5 Kxb4 50. h6 1-0

[Event "Charlotte CCCSA Spring IM-C"]
[Site "Charlotte"]
[Date "2022.03.20"]
[Round "8"]
[White "Ivanov, Mike"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2339"]
[BlackElo "2389"]
[PlyCount "112"]
[EventDate "2022.03.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "1"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. e4 c6 2. Ne2 d5 3. e5 c5 4. d4 Nc6 5. c3 Bg4 6. h3 Bxe2 7. Bxe2 e6 8. 0-0 cxd4 9. cxd4 Nge7 10. Na3 Nf5 11. Nc2 Qb6 12. Be3 Be7 13. Bd3 g6 14. Rb1 Rc8 15. b4 0-0 16. Qd2 Rc7 17. a3 Rfc8 18. Rfd1 Nxe3 19. fxe3 Bg5 20. Kh1 Ne7 21. Ne1 Rc3 22. Nf3 Bh6 23. Qe1 Nf5 24. Bxf5 exf5 25. Rbc1 Qc7 26. Rxc3 Qxc3 27. Qh4 Qxe3 28. b5 Bf8 29. Qf6 Qxa3 30. e6 Qe7 31. exf7+ Qxf7 32. Qh4 Qe7 33. Qg3 Qe3 34. Kh2 Qa3 35. Qh4 Be7 36. Qe1 Qd6+ 37. Kh1 Rc2 38. Rd2 Rxd2 39. Nxd2 Kf7 40. Nf3 Bf6 41. Qc3 Qd7 42. Qa5 b6 43. Qa4 g5 44. Qc2 h5 45. g4 fxg4 46. Qh7+ Ke6 47. Qg8+ Kf5 48. hxg4+ hxg4 49. Nd2 Bxd4 50. Kg2 Qe6 51. Qh7+ Kf4 52. Qh2+ Ke3 53. Kf1 Kd3 54. Nb3 Qf5+ 55. Ke1 Bc3+ 56. Nd2 Qe5+ 0-1

[Event "Charlotte CCCSA Spring IM-C"]
[Site "Charlotte"]
[Date "2022.03.20"]
[Round "9"]
[White "Posthuma, Joshua G"]
[Black "Yan, Rui Yang"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "2389"]
[BlackElo "2284"]
[PlyCount "26"]
[EventDate "2022.03.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "1"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 c6 7. Nc3 a5 8. Nd2 b5 9. cxb5 cxb5 10. Nxb5 Qb6 11. a4 Nc6 12. Nb1 Ba6 13. N1c3 Bb4 1/2-1/2

[Event "Charlotte CCCSA Spring IM-C"]
[Site "Charlotte"]
[Date "2022.03.19"]
[Round "6"]
[White "Hardaway, Brewington"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2199"]
[BlackElo "2389"]
[PlyCount "88"]
[EventDate "2022.03.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "1"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. dxc5 Bg4 6. c3 e6 7. Be3 a6 8. Qb3 Bxf3 9. Qxb7 Nge7 10. gxf3 Ra7 11. Qb6 Qa8 12. f4 Nf5 13. Bd3 Nxe3 14. fxe3 Be7 15. Nd2 0-0 16. Qb3 Bxc5 17. Ke2 Rb7 18. Qc2 Qa7 19. Bxh7+ Kh8 20. Bd3 Bxe3 21. Rhf1 Rc8 22. Qb1 g5 23. fxg5 Nxe5 24. Nf3 Nxd3 25. Kxd3 Bf2 26. Qc1 Qc5 27. a4 Qc4+ 28. Kd2 Qf4+ 29. Ke2 Rxb2+ 30. Nd2 Qe3+ 31. Kd1 Rcb8 32. a5 Bh4 33. Ra4 Rxd2+ 34. Qxd2 Rb1+ 35. Kc2 Rb2+ 36. Kxb2 Qxd2+ 37. Kb3 Be1 38. Rxe1 Qxe1 39. h4 Qb1+ 40. Ka3 Qa1+ 41. Kb3 Qb1+ 42. Ka3 Qc2 43. Kb4 Qb2+ 44. Kc5 Qb5+ 0-1

[Event "Charlotte CCCSA Spring IM-C"]
[Site "Charlotte"]
[Date "2022.03.19"]
[Round "7"]
[White "Posthuma, Joshua G"]
[Black "Martin Del Campo C, Roberto Abel"]
[Result "1/2-1/2"]
[ECO "A54"]
[WhiteElo "2389"]
[BlackElo "2257"]
[PlyCount "139"]
[EventDate "2022.03.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "1"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 e4 5. Ng5 Qe7 6. Qc2 Nc6 7. Nd5 Nxd4 8. Qa4+ b5 9. Nxf6+ gxf6 10. cxb5 d5 11. Qxd4 Qb4+ 12. Qxb4 Bxb4+ 13. Kd1 fxg5 14. Bxg5 Bd6 15. e3 Bd7 16. Kc2 Rb8 17. a4 Be5 18. Rd1 c6 19. Bh4 f6 20. Bg3 Ke7 21. Kb1 Ke6 22. Bxe5 fxe5 23. g3 Kd6 24. Bg2 Rhf8 25. Rd2 Bf5 26. bxc6 Rb4 27. Rc1 Rc8 28. c7 Rxa4 29. Rdc2 Ra6 30. Bf1 Rb6 31. Rc5 Bd7 32. Ra5 Ra8 33. Ba6 Bc8 34. Bxc8 Rxc8 35. Rxa7 Rc6 36. Rxc6+ Kxc6 37. Ra6+ Kxc7 38. Ra7+ Kd6 39. Ra6+ Ke7 40. Rh6 Rf8 41. Rxh7+ Ke6 42. Rh6+ Kd7 43. h4 Rxf2 44. h5 d4 45. Kc1 dxe3 46. Kd1 Rxb2 47. Rg6 Rh2 48. h6 Ke7 49. g4 Kf7 50. Rg7+ Kf8 51. g5 e2+ 52. Ke1 e3 53. Rg6 Kf7 54. Ra6 Kg8 55. Re6 Kf7 56. Rb6 Kg8 57. Rb7 Rg2 58. Rg7+ Kh8 59. Rg6 Kh7 60. Rg7+ Kh8 61. g6 e4 62. Rh7+ Kg8 63. Rg7+ Kh8 64. Rh7+ Kg8 65. Re7 Rxg6 66. h7+ Kh8 67. Kxe2 Rg3 68. Rxe4 Kxh7 69. Rxe3 Rxe3+ 70. Kxe3 1/2-1/2

[Event "Charlotte CCCSA Spring IM-C"]
[Site "Charlotte"]
[Date "2022.03.18"]
[Round "5"]
[White "Posthuma, Joshua G"]
[Black "Canty, James H"]
[Result "1-0"]
[ECO "A86"]
[WhiteElo "2389"]
[BlackElo "2198"]
[PlyCount "105"]
[EventDate "2022.03.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "1"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. c4 f5 2. d4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nc3 0-0 6. Nh3 d6 7. d5 e5 8. dxe6 c6 9. Ng5 Qe7 10. Bf4 Ne8 11. Nf7 Qxe6 12. Nxd6 Nxd6 13. Bxd6 Rd8 14. c5 Na6 15. Qb3 Qxb3 16. axb3 Bf8 17. Rxa6 bxa6 18. Bxc6 Bxd6 19. Bxa8 Bxc5 20. Bd5+ Kg7 21. 0-0 Bd4 22. Rd1 Bf6 23. f4 Kf8 24. Kf2 Ke7 25. Ke3 a5 26. Rd3 Rd6 27. Bg8 Rxd3+ 28. exd3 Kf8 29. Bc4 Bd7 30. d4 Bc6 31. Bd5 Bd7 32. Kd3 h6 33. Kc4 g5 34. Bb7 gxf4 35. gxf4 Bh4 36. Kc5 Bf2 37. Kd6 Ke8 38. d5 Kd8 39. Bc6 Bc8 40. Ke5 Be3 41. d6 Bc1 42. Na4 h5 43. Nc5 Bxb2+ 44. Kd5 Bc1 45. d7 Bxd7 46. Bxd7 Ke7 47. Nd3 Be3 48. Bxf5 Kf6 49. Bd7 h4 50. h3 Ke7 51. Ba4 Kf6 52. Ke4 Bg1 53. Kf3 1-0

[Event "Charlotte CCCSA Spring IM-C"]
[Site "Charlotte"]
[Date "2022.03.18"]
[Round "4"]
[White "Vanapalli, Vishnu Surya"]
[Black "Posthuma, Joshua G"]
[Result "0-1"]
[ECO "A50"]
[WhiteElo "2259"]
[BlackElo "2389"]
[PlyCount "112"]
[EventDate "2022.03.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "1"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. c4 b6 2. Nf3 Bb7 3. g3 Nf6 4. Bg2 g6 5. 0-0 Bg7 6. d4 0-0 7. Nc3 Ne4 8. Nxe4 Bxe4 9. d5 b5 10. Nd2 Bxg2 11. Kxg2 c6 12. e4 Na6 13. cxb5 cxb5 14. Nb3 Rc8 15. a4 Nb4 16. axb5 Nc2 17. Ra4 Qb6 18. Qd3 f5 19. Bg5 Qxf2+ 20. Rxf2 Ne1+ 21. Kg1 Nxd3 22. Re2 fxe4 23. Raxe4 Rf5 24. Bxe7 Rxd5 25. Ba3 Ne5 26. Kg2 Rxb5 27. Nd4 Rd5 28. Nc2 Rc4 29. R4e3 h5 30. Rb3 Rc8 31. Ne3 Rd3 32. Rb7 a5 33. Rb5 Nc6 34. Nd5 Nd4 35. Rxa5 Nxe2 36. Ne7+ Kh7 37. Nxc8 Rd2 38. Nb6 Nd4+ 39. Kf1 Nf3 40. Bc5 Nxh2+ 41. Ke1 Nf3+ 42. Kf1 d6 43. Bf2 Nh2+ 44. Ke1 Rxb2 45. Ra7 Nf3+ 46. Kf1 Kh6 47. Rd7 Nh2+ 48. Kg1 Ng4 49. Nc4 Rxf2 50. Nxd6 Bd4 51. Ne4 Rd2+ 52. Kf1 Nh2+ 53. Ke1 Nf3+ 54. Kf1 Ra2 55. g4 hxg4 56. Rd6 Nd2+ 0-1

[Event "Charlotte CCCSA Spring IM-C"]
[Site "Charlotte"]
[Date "2022.03.17"]
[Round "2"]
[White "Andrianov, Nikolai Ivanovich"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "A50"]
[WhiteElo "2330"]
[BlackElo "2389"]
[PlyCount "120"]
[EventDate "2022.03.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "1"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. c4 g6 5. Bg2 Bg7 6. 0-0 0-0 7. d5 Na6 8. Nc3 Nc5 9. Nd4 e5 10. Nc2 a5 11. e4 d6 12. Bg5 h6 13. Be3 Qe7 14. h3 Kh7 15. Ne1 h5 16. Qc2 Bh6 17. Bxh6 Kxh6 18. Nd3 Nfd7 19. f4 h4 20. Nxc5 bxc5 21. f5 hxg3 22. Ne2 g5 23. Nxg3 f6 24. Bf3 Kg7 25. h4 gxh4 26. Qh2 Rh8 27. Nh5+ Kf7 28. Kf2 Rag8 29. Rg1 Nf8 30. Qxh4 Nh7 31. Rxg8 Rxg8 32. Nf4 exf4 33. Qxh7+ Rg7 34. Bh5+ Kf8 35. Qh8+ Rg8 36. Qh6+ Qg7 37. Qxg7+ Kxg7 38. Rg1+ Kf8 39. Rxg8+ Kxg8 40. Be8 Kg7 41. Kf3 Kh6 42. Kxf4 Ba6 43. b3 Bc8 44. Kg4 Ba6 45. Bd7 Bb7 46. Kf4 Kh5 47. Ke3 Kg5 48. Kd3 Kf4 49. Kc3 Kxe4 50. Kb2 Kd3 51. Ka3 Kc3 52. Ka4 Kb2 53. Kxa5 Kxa2 54. b4 cxb4 55. Kxb4 Kb2 56. Kb5 Kc3 57. Be6 Kd4 58. Bd7 Ke4 59. Be6 Ke5 60. Bd7 Kd4 1/2-1/2

[Event "Charlotte CCCSA Spring IM-C"]
[Site "Charlotte"]
[Date "2022.03.17"]
[Round "3"]
[White "Posthuma, Joshua G"]
[Black "Adu, Oladapo"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "2389"]
[BlackElo "2136"]
[PlyCount "134"]
[EventDate "2022.03.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "1"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 a6 4. cxd5 exd5 5. Nc3 c6 6. Bf4 Bd6 7. Bxd6 Qxd6 8. e3 Nf6 9. Qc2 0-0 10. Bd3 Nbd7 11. 0-0 Re8 12. Rfe1 Nf8 13. Na4 g6 14. a3 Re7 15. b4 Be6 16. Nc5 Rae8 17. a4 Bc8 18. b5 axb5 19. axb5 cxb5 20. Bxb5 Rd8 21. Rec1 Rc7 22. Qb2 Ne6 23. Bd3 Nxc5 24. Rxc5 Rxc5 25. dxc5 Qe7 26. Rc1 Bg4 27. Nd4 Rc8 28. h3 Be6 29. Rc2 Rc7 30. Nb5 Rc6 31. Nd4 Rc7 32. Qb6 Bc8 33. c6 Kg7 34. Qb2 bxc6 35. Nxc6 Qd6 36. Nd4 Rxc2 37. Qxc2 Ba6 38. Bxa6 Qxa6 39. Qc7 Ne4 40. f3 Nf6 41. Kh2 h6 42. f4 Ne8 43. Qe5+ Nf6 44. f5 Qc8 45. fxg6 Kxg6 46. Qg3+ Kh7 47. Qf4 Kg6 48. Nf3 Qe6 49. g4 Ne4 50. Nh4+ Kh7 51. Kg2 Ng5 52. Qf5+ Kg7 53. Qd3 Qe4+ 54. Qxe4 dxe4 55. Nf5+ Kg6 56. Nd6 h5 57. Kg3 hxg4 58. Kxg4 Ne6 59. h4 Ng7 60. Kf4 Kh5 61. Kxe4 Kxh4 62. Nf5+ Nxf5 63. Kxf5 Kg3 64. e4 Kf3 65. e5 Ke3 66. Kf6 Kd4 67. Kxf7 Kxe5 1/2-1/2

[Event "Charlotte CCCSA Spring IM-C"]
[Site "Charlotte"]
[Date "2022.03.16"]
[Round "1"]
[White "Posthuma, Joshua G"]
[Black "De la Colina, Nicolas"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2389"]
[BlackElo "2181"]
[PlyCount "103"]
[EventDate "2022.03.16"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "1"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 c5 7. dxc5 dxc5 8. Qxd8 Rxd8 9. Bxc5 Nc6 10. Be3 b6 11. Rc1 Bb7 12. Nh3 Rac8 13. b3 Nd7 14. Be2 Nc5 15. Nf4 Nb4 16. 0-0 Bxc3 17. Rxc3 Nxa2 18. Rc2 Nb4 19. Rb2 e6 20. Ra1 a5 21. h4 h5 22. Kh2 Kg7 23. Rg1 e5 24. Nd5 Bxd5 25. exd5 f5 26. Bg5 Re8 27. Rd1 Kf7 28. d6 Nd7 29. Rbd2 Rc6 30. c5 Rxc5 31. Bc4+ Kg7 32. Be3 Rcc8 33. Bb5 Nc6 34. Rc2 Ncb8 35. Rc7 Rcd8 36. Bxb6 Kf6 37. Rb7 Nxb6 38. Bxe8 Rxe8 39. Rxb6 Nd7 40. Rb5 Ra8 41. Ra1 Ra6 42. Rbxa5 Rb6 43. Ra7 Ke6 44. Rc1 Rxd6 45. Rc8 Rd3 46. b4 Rd4 47. b5 Rxh4+ 48. Kg3 Rd4 49. Rc6+ Kf7 50. b6 h4+ 51. Kh2 Ke7 52. Rxg6 1-0

[Event "Charlotte CCCSA Winter GM-A"]
[Site "Charlotte"]
[Date "2022.01.17"]
[Round "8"]
[White "Hilby, Craig"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2434"]
[BlackElo "2359"]
[PlyCount "59"]
[EventDate "2022.01.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. dxc5 Bg4 6. c3 e6 7. Be3 a6 8. Nbd2 Nxe5 9. h3 Nxf3+ 10. Nxf3 Bxf3 11. Qxf3 Nf6 12. Bd3 Nd7 13. b4 Ne5 14. Qe2 Nxd3+ 15. Qxd3 Be7 16. 0-0 0-0 17. c4 dxc4 18. Qxc4 Qd7 19. a4 Rfd8 20. Qb3 Qd5 21. Qxd5 Rxd5 22. Rfd1 Rad8 23. Rxd5 Rxd5 24. Rc1 Kf8 25. c6 bxc6 26. Rxc6 Bxb4 27. Rxa6 Bc5 28. Bxc5+ Rxc5 29. Ra7 g5 30. g3 1/2-1/2

[Event "Charlotte CCCSA Winter GM-A"]
[Site "Charlotte"]
[Date "2022.01.17"]
[Round "9"]
[White "Posthuma, Joshua G"]
[Black "Vazquez, Guillermo"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "2359"]
[BlackElo "2536"]
[PlyCount "38"]
[EventDate "2022.01.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 a6 4. cxd5 exd5 5. Nc3 c6 6. Bf4 Bd6 7. Bxd6 Qxd6 8. e3 Ne7 9. Bd3 0-0 10. Qc2 g6 11. 0-0 Bg4 12. Ne5 Bf5 13. b4 Nd7 14. Nxd7 Qxd7 15. Na4 Bxd3 16. Qxd3 Qc7 17. Nc5 Nf5 18. a4 Nd6 19. f3 Qe7 1/2-1/2

[Event "Charlotte CCCSA Winter GM-A"]
[Site "Charlotte"]
[Date "2022.01.16"]
[Round "7"]
[White "Posthuma, Joshua G"]
[Black "Talukdar, Rohan Shyam"]
[Result "1-0"]
[ECO "A31"]
[WhiteElo "2359"]
[BlackElo "2329"]
[PlyCount "51"]
[EventDate "2022.01.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. g3 e5 6. Nb5 Bb4+ 7. N1c3 a6 8. Nd6+ Ke7 9. Nf5+ Kf8 10. Ne3 d6 11. Bg2 Be6 12. 0-0 Bxc3 13. bxc3 Ke7 14. Ba3 Qc7 15. c5 d5 16. Nxd5+ Bxd5 17. Bxd5 Nxd5 18. Qxd5 Rhd8 19. Qe4 g6 20. Qh4+ Ke6 21. f4 e4 22. f5+ gxf5 23. Qh6+ f6 24. Rxf5 Kxf5 25. Rf1+ Ke6 26. Qxf6+ 1-0

[Event "Charlotte CCCSA Winter GM-A"]
[Site "Charlotte"]
[Date "2022.01.16"]
[Round "6"]
[White "Stremavicius, Titas"]
[Black "Posthuma, Joshua G"]
[Result "1/2-1/2"]
[ECO "B36"]
[WhiteElo "2505"]
[BlackElo "2359"]
[PlyCount "127"]
[EventDate "2022.01.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 g6 3. e4 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Nc3 Nxd4 7. Qxd4 d6 8. Bg5 Bg7 9. Qd2 a5 10. Bd3 a4 11. 0-0 Qa5 12. h3 Be6 13. Rac1 Nd7 14. f4 Nc5 15. f5 Nxd3 16. Qxd3 Qc5+ 17. Be3 Bxc4 18. Qd2 Qe5 19. Rf2 0-0 20. Bh6 Rfc8 21. Bxg7 Kxg7 22. a3 f6 23. Qe3 d5 24. Rd1 dxe4 25. Qxe4 Qxe4 26. Nxe4 Rd8 27. Re1 Kf7 28. Rc2 b5 29. Nd2 Rac8 30. Rec1 gxf5 31. Nxc4 bxc4 32. Rxc4 Rxc4 33. Rxc4 Rd2 34. Rxa4 Rxb2 35. Ra7 Ra2 36. a4 f4 37. a5 h5 38. a6 Ke6 39. Kf1 h4 40. Kg1 Kd6 41. Ra8 Ke5 42. Rh8 Ke4 43. Rxh4 e5 44. Rh7 Rxa6 45. Rb7 Kd3 46. Rb3+ Kc4 47. Rf3 e4 48. Rxf4 Kd3 49. Rf1 e3 50. Rd1+ Kc2 51. Re1 Kd2 52. Kf1 Ra5 53. g4 Ra4 54. Re2+ Kd3 55. Re1 Rf4+ 56. Kg2 Kd2 57. Ra1 Rc4 58. Kf3 Rc2 59. h4 e2 60. Kf2 Rc4 61. Ra2+ Kd3 62. Ra3+ Kd2 63. Ra2+ Kd3 64. Ra3+ 1/2-1/2

[Event "Charlotte CCCSA Winter GM-A"]
[Site "Charlotte"]
[Date "2022.01.15"]
[Round "5"]
[White "Posthuma, Joshua G"]
[Black "Gauri, Shankar"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2359"]
[BlackElo "2373"]
[PlyCount "87"]
[EventDate "2022.01.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Bb4+ 6. Bd2 a5 7. a3 Bxd2+ 8. Nbxd2 b5 9. b3 cxb3 10. Qxb3 c6 11. 0-0 0-0 12. Rfc1 Bb7 13. Qb2 Qe7 14. Ne5 a4 15. Ndf3 Nd5 16. Nd3 Nd7 17. Nc5 Nxc5 18. Rxc5 f6 19. Ne1 Rad8 20. Nd3 Rfe8 21. Rac1 Qd6 22. e3 Ne7 23. Nb4 Rc8 24. h4 Kf7 25. Qe2 Kg8 26. Be4 Nd5 27. Qh5 f5 28. Bxd5 exd5 29. Qxf5 Rxe3 30. Nxd5 Rxa3 31. Re1 Rf8 32. Ne7+ Qxe7 33. Rxe7 Rxf5 34. Rxf5 g6 35. Re8+ Kg7 36. Re7+ Kg8 37. Rff7 Bc8 38. Rg7+ Kf8 39. Ref7+ Ke8 40. Ra7 Ra1+ 41. Kg2 Kf8 42. Rxh7 Kg8 43. Rhc7 Be6 44. Ra8+ 1-0

[Event "Charlotte CCCSA Winter GM-A"]
[Site "Charlotte"]
[Date "2022.01.15"]
[Round "4"]
[White "Zhou, Jianchao"]
[Black "Posthuma, Joshua G"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2605"]
[BlackElo "2359"]
[PlyCount "69"]
[EventDate "2022.01.13"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "8"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Bf4 Be7 6. Nc3 0-0 7. d5 Re8 8. g3 Nh5 9. Bd2 Bf6 10. Bg2 exd5 11. cxd5 Ba6 12. e3 c5 13. dxc6 Nxc6 14. Qa4 Bd3 15. Bf1 Bxf1 16. Kxf1 Ne5 17. Nxe5 Bxe5 18. Kg2 d5 19. Rhd1 d4 20. Bc1 d3 21. Qb5 Nf6 22. Rxd3 Qe7 23. Bd2 Rad8 24. Rxd8 Rxd8 25. Be1 h5 26. Rd1 Rxd1 27. Nxd1 Qb7+ 28. f3 Bd6 29. Bc3 h4 30. gxh4 Be7 31. Qe5 Qd7 32. Nf2 Bf8 33. e4 Bc5 34. Ng4 Ne8 35. Qxg7+ 1-0

