[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.29"]
[Round "9"]
[White "Mayeregger Gonzalez, Renata Valentina"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "1905"]
[BlackElo "2056"]
[PlyCount "74"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 Nf6 8. Nc3 0-0 9. 0-0-0 d6 10. Be2 Re8 11. f3 a5 12. a4 Be6 13. Kb1 Nb4 14. Nb5 Bxb3 15. cxb3 d5 16. Qf4 Re7 17. Rhe1 c6 18. Nd4 Qb8 19. Qxb8+ Rxb8 20. exd5 Nfxd5 21. Bf1 Rbe8 22. Rxe7 Rxe7 23. Bc4 g6 24. Bxd5 Nxd5 25. Kc1 f5 26. Kd2 Kf7 27. Re1 Rd7 28. Kc1 Nf4 29. Rd1 Rxd4 30. Rxd4 Ne2+ 31. Kd2 Nxd4 32. Kc3 Ne6 33. b4 axb4+ 34. Kxb4 b6 35. a5 bxa5+ 36. Kxa5 Kf6 37. Kb6 Nd4 0-1

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.29"]
[Round "9"]
[White "Mayeregger Gonzalez, Renata Valentina"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "1905"]
[BlackElo "2056"]
[PlyCount "74"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 Nf6 8. Nc3 0-0 9. 0-0-0 d6 10. Be2 Re8 11. f3 a5 12. a4 Be6 13. Kb1 Nb4 14. Nb5 Bxb3 15. cxb3 d5 16. Qf4 Re7 17. Rhe1 c6 18. Nd4 Qb8 19. Qxb8+ Rxb8 20. exd5 Nfxd5 21. Bf1 Rbe8 22. Rxe7 Rxe7 23. Bc4 g6 24. Bxd5 Nxd5 25. Kc1 f5 26. Kd2 Kf7 27. Re1 Rd7 28. Kc1 Nf4 29. Rd1 Rxd4 30. Rxd4 Ne2+ 31. Kd2 Nxd4 32. Kc3 Ne6 33. b4 axb4+ 34. Kxb4 b6 35. a5 bxa5+ 36. Kxa5 Kf6 37. Kb6 Nd4 0-1

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.28"]
[Round "8"]
[White "Markzon, Gregory"]
[Black "Lima, Stefan Moisei Vieir"]
[Result "0-1"]
[ECO "C18"]
[WhiteElo "2056"]
[BlackElo "2241"]
[PlyCount "112"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Nc6 7. Nf3 Qa5 8. Bd2 Bd7 9. c4 Qc7 10. cxd5 exd5 11. c3 c4 12. Ng5 Nh6 13. g3 0-0 14. Bg2 Ne7 15. 0-0 Nhf5 16. Re1 Qc8 17. a4 h6 18. Nf3 Nc6 19. Bc1 Re8 20. Ba3 Nfe7 21. Nd2 Bh3 22. Bf3 Be6 23. Nf1 Na5 24. Ne3 Qd7 25. Rb1 Nb3 26. Bg2 Nf5 27. Nxf5 Bxf5 28. Rxb3 cxb3 29. Qxb3 Be6 30. f4 Rac8 31. Bf1 Rc4 32. Bxc4 dxc4 33. Qb4 Qc8 34. a5 a6 35. Qc5 Qd7 36. Kf2 h5 37. f5 Bxf5 38. Qxc4 Be6 39. Qe2 h4 40. Bd6 Rc8 41. Bc5 hxg3+ 42. hxg3 Rc6 43. Rh1 Bd5 44. Rh5 g6 45. Rg5 Qh3 46. Ke3 Qh1 47. Rg4 Be6 48. Rh4 Bh3 49. Qf2 Qc1+ 50. Qd2 Qg1+ 51. Qf2 Qc1+ 52. Qd2 Qh1 53. Qf2 g5 54. Rh5 Rg6 55. Kd3 Qd1+ 56. Ke3 Qxh5 0-1

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.28"]
[Round "8"]
[White "Markzon, Gregory"]
[Black "Lima, Stefan Moisei Vieir"]
[Result "0-1"]
[ECO "C18"]
[WhiteElo "2056"]
[BlackElo "2241"]
[PlyCount "112"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Nc6 7. Nf3 Qa5 8. Bd2 Bd7 9. c4 Qc7 10. cxd5 exd5 11. c3 c4 12. Ng5 Nh6 13. g3 0-0 14. Bg2 Ne7 15. 0-0 Nhf5 16. Re1 Qc8 17. a4 h6 18. Nf3 Nc6 19. Bc1 Re8 20. Ba3 Nfe7 21. Nd2 Bh3 22. Bf3 Be6 23. Nf1 Na5 24. Ne3 Qd7 25. Rb1 Nb3 26. Bg2 Nf5 27. Nxf5 Bxf5 28. Rxb3 cxb3 29. Qxb3 Be6 30. f4 Rac8 31. Bf1 Rc4 32. Bxc4 dxc4 33. Qb4 Qc8 34. a5 a6 35. Qc5 Qd7 36. Kf2 h5 37. f5 Bxf5 38. Qxc4 Be6 39. Qe2 h4 40. Bd6 Rc8 41. Bc5 hxg3+ 42. hxg3 Rc6 43. Rh1 Bd5 44. Rh5 g6 45. Rg5 Qh3 46. Ke3 Qh1 47. Rg4 Be6 48. Rh4 Bh3 49. Qf2 Qc1+ 50. Qd2 Qg1+ 51. Qf2 Qc1+ 52. Qd2 Qh1 53. Qf2 g5 54. Rh5 Rg6 55. Kd3 Qd1+ 56. Ke3 Qxh5 0-1

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.27"]
[Round "7"]
[White "Martins, Vinicius Tine"]
[Black "Markzon, Gregory"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "2257"]
[BlackElo "2056"]
[PlyCount "154"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. d5 a5 8. h3 Na6 9. g4 c6 10. Be3 cxd5 11. cxd5 Bd7 12. Nd2 Nc5 13. a4 Ne8 14. h4 b6 15. Ra3 f5 16. gxf5 gxf5 17. Bb5 Bxb5 18. Nxb5 Nxe4 19. Nxe4 fxe4 20. h5 Rf3 21. h6 Bf8 22. Rg1+ Kh8 23. Bg5 Rf6 24. Qh5 Be7 25. Rag3 Rg6 26. Bxe7 Rxg3 27. Bxd8 Rxg1+ 28. Ke2 Rxd8 29. Qf7 Rc8 30. Ke3 Rg6 31. Qf8+ Rg8 32. Qe7 Rg6 33. Na7 Nf6 34. Qf7 Rcg8 35. Nc6 Ng4+ 36. Kd2 Rf6 37. Qd7 Nxh6 38. Ne7 Rgf8 39. Kc3 Nf7 40. Kc4 Ng5 41. Kb5 Nf7 42. Ka6 Rxf2 43. Nf5 Kg8 44. Qe6 Rg2 45. Nh6+ Kg7 46. Nf5+ Kg8 47. Qf6 Re8 48. Ne7+ Rxe7 49. Qxe7 Rxb2 50. Qh4 Rb4 51. Kb7 Kg7 52. Kc6 h6 53. Kd7 e3 54. Qg3+ Kf6 55. Qf3+ Rf4 56. Qxe3 Rxa4 57. Qxb6 h5 58. Qe3 Rf4 59. Qh3 h4 60. Qe6+ Kg7 61. Ke7 a4 62. Qh3 Kg6 63. Qg2+ Kh6 64. Qd2 Kh5 65. Qe2+ Kh6 66. Qd2 Ng5 67. Qe3 h3 68. Qg1 Rh4 69. Kf6 Rf4+ 70. Ke7 Nf3 71. Qg3 h2 72. Qh3+ Kg6 73. Kxd6 Kg5 74. Ke7 Rh4 75. Qg3+ Kh6 76. Qxf3 h1Q 77. Qf6+ Kh7 1/2-1/2

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.27"]
[Round "7"]
[White "Martins, Vinicius Tine"]
[Black "Markzon, Gregory"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "2257"]
[BlackElo "2056"]
[PlyCount "154"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. d5 a5 8. h3 Na6 9. g4 c6 10. Be3 cxd5 11. cxd5 Bd7 12. Nd2 Nc5 13. a4 Ne8 14. h4 b6 15. Ra3 f5 16. gxf5 gxf5 17. Bb5 Bxb5 18. Nxb5 Nxe4 19. Nxe4 fxe4 20. h5 Rf3 21. h6 Bf8 22. Rg1+ Kh8 23. Bg5 Rf6 24. Qh5 Be7 25. Rag3 Rg6 26. Bxe7 Rxg3 27. Bxd8 Rxg1+ 28. Ke2 Rxd8 29. Qf7 Rc8 30. Ke3 Rg6 31. Qf8+ Rg8 32. Qe7 Rg6 33. Na7 Nf6 34. Qf7 Rcg8 35. Nc6 Ng4+ 36. Kd2 Rf6 37. Qd7 Nxh6 38. Ne7 Rgf8 39. Kc3 Nf7 40. Kc4 Ng5 41. Kb5 Nf7 42. Ka6 Rxf2 43. Nf5 Kg8 44. Qe6 Rg2 45. Nh6+ Kg7 46. Nf5+ Kg8 47. Qf6 Re8 48. Ne7+ Rxe7 49. Qxe7 Rxb2 50. Qh4 Rb4 51. Kb7 Kg7 52. Kc6 h6 53. Kd7 e3 54. Qg3+ Kf6 55. Qf3+ Rf4 56. Qxe3 Rxa4 57. Qxb6 h5 58. Qe3 Rf4 59. Qh3 h4 60. Qe6+ Kg7 61. Ke7 a4 62. Qh3 Kg6 63. Qg2+ Kh6 64. Qd2 Kh5 65. Qe2+ Kh6 66. Qd2 Ng5 67. Qe3 h3 68. Qg1 Rh4 69. Kf6 Rf4+ 70. Ke7 Nf3 71. Qg3 h2 72. Qh3+ Kg6 73. Kxd6 Kg5 74. Ke7 Rh4 75. Qg3+ Kh6 76. Qxf3 h1Q 77. Qf6+ Kh7 1/2-1/2

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.26"]
[Round "5"]
[White "Caceres Benitez, Fernando Israel"]
[Black "Markzon, Gregory"]
[Result "1/2-1/2"]
[ECO "C58"]
[WhiteElo "1929"]
[BlackElo "2056"]
[PlyCount "94"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Bd3 Ng4 9. Ne4 f5 10. Be2 h5 11. h3 fxe4 12. hxg4 Bc5 13. Nc3 0-0 14. 0-0 Qd4 15. Qe1 hxg4 16. d3 exd3 17. Bxd3 g3 18. Be3 gxf2+ 19. Bxf2 Rxf2 20. Rxf2 Qxf2+ 21. Qxf2 Bxf2+ 22. Kxf2 Kf7 23. Ke3 Be6 24. Rf1+ Ke7 25. b3 Nb7 26. Be4 Rc8 27. Na4 Nd6 28. c4 c5 29. Nc3 Rh8 30. Rf2 Rd8 31. Na4 Rc8 32. Nb2 Nf7 33. Bg6 Nh8 34. Be4 Nf7 35. Bg6 Nh6 36. Rf1 Ng4+ 37. Ke2 Nf6 38. Nd3 Kd6 39. Nf2 Rh8 40. Ne4+ Nxe4 41. Bxe4 Ke7 42. Ke3 Rd8 43. Rf3 Rd4 44. Rg3 Kf7 45. Rg5 Kf6 46. Rg6+ Kf7 47. Rg5 Kf6 1/2-1/2

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.26"]
[Round "5"]
[White "Caceres Benitez, Fernando Israel"]
[Black "Markzon, Gregory"]
[Result "1/2-1/2"]
[ECO "C58"]
[WhiteElo "1929"]
[BlackElo "2056"]
[PlyCount "94"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Bd3 Ng4 9. Ne4 f5 10. Be2 h5 11. h3 fxe4 12. hxg4 Bc5 13. Nc3 0-0 14. 0-0 Qd4 15. Qe1 hxg4 16. d3 exd3 17. Bxd3 g3 18. Be3 gxf2+ 19. Bxf2 Rxf2 20. Rxf2 Qxf2+ 21. Qxf2 Bxf2+ 22. Kxf2 Kf7 23. Ke3 Be6 24. Rf1+ Ke7 25. b3 Nb7 26. Be4 Rc8 27. Na4 Nd6 28. c4 c5 29. Nc3 Rh8 30. Rf2 Rd8 31. Na4 Rc8 32. Nb2 Nf7 33. Bg6 Nh8 34. Be4 Nf7 35. Bg6 Nh6 36. Rf1 Ng4+ 37. Ke2 Nf6 38. Nd3 Kd6 39. Nf2 Rh8 40. Ne4+ Nxe4 41. Bxe4 Ke7 42. Ke3 Rd8 43. Rf3 Rd4 44. Rg3 Kf7 45. Rg5 Kf6 46. Rg6+ Kf7 47. Rg5 Kf6 1/2-1/2

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.26"]
[Round "6"]
[White "Markzon, Gregory"]
[Black "Pavoni, Felipe Stevanin"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2056"]
[BlackElo "1868"]
[PlyCount "59"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e6 7. Be3 Be7 8. Bd3 Nbd7 9. 0-0 Nc5 10. Qf3 Nxd3 11. cxd3 0-0 12. g4 Ne8 13. f5 Bd7 14. Kh1 e5 15. Nc2 Bc6 16. Nb4 Bg5 17. Nbd5 Bxe3 18. Qxe3 Nf6 19. Nb6 Nxg4 20. Qg1 Nf6 21. Nxa8 Qxa8 22. Qg2 Kh8 23. Rae1 b5 24. Kg1 b4 25. Ne2 d5 26. Ng3 Ng4 27. Nh5 Qa7+ 28. Kh1 g6 29. fxg6 hxg6 30. Qxg4 1-0

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.26"]
[Round "6"]
[White "Markzon, Gregory"]
[Black "Pavoni, Felipe Stevanin"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2056"]
[BlackElo "1868"]
[PlyCount "59"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e6 7. Be3 Be7 8. Bd3 Nbd7 9. 0-0 Nc5 10. Qf3 Nxd3 11. cxd3 0-0 12. g4 Ne8 13. f5 Bd7 14. Kh1 e5 15. Nc2 Bc6 16. Nb4 Bg5 17. Nbd5 Bxe3 18. Qxe3 Nf6 19. Nb6 Nxg4 20. Qg1 Nf6 21. Nxa8 Qxa8 22. Qg2 Kh8 23. Rae1 b5 24. Kg1 b4 25. Ne2 d5 26. Ng3 Ng4 27. Nh5 Qa7+ 28. Kh1 g6 29. fxg6 hxg6 30. Qxg4 1-0

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.25"]
[Round "4"]
[White "Markzon, Gregory"]
[Black "Rodrigues, Edgar"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2056"]
[BlackElo "2245"]
[PlyCount "104"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Ne7 6. 0-0 Nbc6 7. Nxc6 Nxc6 8. Nd2 Be7 9. f4 d6 10. Nf3 Qb6+ 11. Kh1 Bd7 12. Qe2 Rc8 13. c3 Qc7 14. Bd2 e5 15. f5 h6 16. Ne1 Bg5 17. Nc2 Ne7 18. Bxg5 hxg5 19. Ne3 f6 20. Rad1 Bc6 21. c4 Rh4 22. Nd5 Bxd5 23. cxd5 Kf7 24. Rf2 Rch8 25. g3 Rh3 26. Qe3 Qa5 27. Bf1 R3h6 28. a3 Rc8 29. Rc1 Rhh8 30. Rfc2 Rxc2 31. Rxc2 Rc8 32. Rxc8 Nxc8 33. Kg2 Qc7 34. Qe2 Ne7 35. Qd2 Nc8 36. Qe2 Ke7 37. h4 gxh4 38. gxh4 Qc1 39. a4 Nb6 40. b3 Nd7 41. b4 Qb1 42. Qc4 b5 43. axb5 axb5 44. Bd3 Qb2+ 45. Qc2 Qxb4 46. Qa2 Qa4 47. Qe2 Nc5 48. Bc2 Qa2 49. Kh3 b4 50. Qg2 Kf8 51. h5 Qa3+ 52. Kh4 Qe3 0-1

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.25"]
[Round "4"]
[White "Markzon, Gregory"]
[Black "Rodrigues, Edgar"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2056"]
[BlackElo "2245"]
[PlyCount "104"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Ne7 6. 0-0 Nbc6 7. Nxc6 Nxc6 8. Nd2 Be7 9. f4 d6 10. Nf3 Qb6+ 11. Kh1 Bd7 12. Qe2 Rc8 13. c3 Qc7 14. Bd2 e5 15. f5 h6 16. Ne1 Bg5 17. Nc2 Ne7 18. Bxg5 hxg5 19. Ne3 f6 20. Rad1 Bc6 21. c4 Rh4 22. Nd5 Bxd5 23. cxd5 Kf7 24. Rf2 Rch8 25. g3 Rh3 26. Qe3 Qa5 27. Bf1 R3h6 28. a3 Rc8 29. Rc1 Rhh8 30. Rfc2 Rxc2 31. Rxc2 Rc8 32. Rxc8 Nxc8 33. Kg2 Qc7 34. Qe2 Ne7 35. Qd2 Nc8 36. Qe2 Ke7 37. h4 gxh4 38. gxh4 Qc1 39. a4 Nb6 40. b3 Nd7 41. b4 Qb1 42. Qc4 b5 43. axb5 axb5 44. Bd3 Qb2+ 45. Qc2 Qxb4 46. Qa2 Qa4 47. Qe2 Nc5 48. Bc2 Qa2 49. Kh3 b4 50. Qg2 Kf8 51. h5 Qa3+ 52. Kh4 Qe3 0-1

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.24"]
[Round "2"]
[White "Markzon, Gregory"]
[Black "Conor, Gilberto Bordignon"]
[Result "1-0"]
[ECO "C14"]
[WhiteElo "2056"]
[BlackElo "1813"]
[PlyCount "31"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 Bxg5 7. hxg5 Qxg5 8. Nh3 Qe7 9. Qg4 f5 10. Qg3 Rf8 11. Nf4 g5 12. Nfxd5 exd5 13. Nxd5 f4 14. Qc3 Qg7 15. Nxc7+ Kf7 16. Bc4+ 1-0

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.24"]
[Round "2"]
[White "Markzon, Gregory"]
[Black "Conor, Gilberto Bordignon"]
[Result "1-0"]
[ECO "C14"]
[WhiteElo "2056"]
[BlackElo "1813"]
[PlyCount "31"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 Bxg5 7. hxg5 Qxg5 8. Nh3 Qe7 9. Qg4 f5 10. Qg3 Rf8 11. Nf4 g5 12. Nfxd5 exd5 13. Nxd5 f4 14. Qc3 Qg7 15. Nxc7+ Kf7 16. Bc4+ 1-0

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.24"]
[Round "3"]
[White "Pierrot, Juan Facundo"]
[Black "Markzon, Gregory"]
[Result "1/2-1/2"]
[ECO "E69"]
[WhiteElo "2253"]
[BlackElo "2056"]
[PlyCount "98"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. c4 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 a6 10. Be3 b5 11. c5 b4 12. Na4 d5 13. dxe5 Nxe4 14. Bd4 Qe7 15. Re1 Rb8 16. Rc1 Re8 17. e6 fxe6 18. Bxg7 Qxg7 19. Nd4 Bb7 20. Bxe4 dxe4 21. Rxe4 e5 22. Nf3 Rf8 23. Rxb4 Nf6 24. Nc3 a5 25. Rb3 Rbd8 26. Qe2 Bc8 27. Nxe5 Rde8 28. f4 g5 29. Qg2 gxf4 30. gxf4 Qxg2+ 31. Kxg2 Nh5 32. Nxc6 Nxf4+ 33. Kh2 Nxh3 34. Rc2 Nf2 35. Nd5 Be6 36. Nde7+ Kh8 37. Rg3 Ng4+ 38. Kg1 Nf6 39. Rh2 Bd5 40. Ng6+ Kg7 41. Nxf8+ Kxf8 42. Rf2 Re1+ 43. Rf1 Rxf1+ 44. Kxf1 Bxa2 45. Ra3 Bc4+ 46. Ke1 Ke8 47. Rxa5 Kd7 48. Ra4 Bb5 49. Rd4+ Kc7 1/2-1/2

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.24"]
[Round "3"]
[White "Pierrot, Juan Facundo"]
[Black "Markzon, Gregory"]
[Result "1/2-1/2"]
[ECO "E69"]
[WhiteElo "2253"]
[BlackElo "2056"]
[PlyCount "98"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. c4 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 a6 10. Be3 b5 11. c5 b4 12. Na4 d5 13. dxe5 Nxe4 14. Bd4 Qe7 15. Re1 Rb8 16. Rc1 Re8 17. e6 fxe6 18. Bxg7 Qxg7 19. Nd4 Bb7 20. Bxe4 dxe4 21. Rxe4 e5 22. Nf3 Rf8 23. Rxb4 Nf6 24. Nc3 a5 25. Rb3 Rbd8 26. Qe2 Bc8 27. Nxe5 Rde8 28. f4 g5 29. Qg2 gxf4 30. gxf4 Qxg2+ 31. Kxg2 Nh5 32. Nxc6 Nxf4+ 33. Kh2 Nxh3 34. Rc2 Nf2 35. Nd5 Be6 36. Nde7+ Kh8 37. Rg3 Ng4+ 38. Kg1 Nf6 39. Rh2 Bd5 40. Ng6+ Kg7 41. Nxf8+ Kxf8 42. Rf2 Re1+ 43. Rf1 Rxf1+ 44. Kxf1 Bxa2 45. Ra3 Bc4+ 46. Ke1 Ke8 47. Rxa5 Kd7 48. Ra4 Bb5 49. Rd4+ Kc7 1/2-1/2

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.23"]
[Round "1"]
[White "Fier, Alexandr"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2556"]
[BlackElo "2056"]
[PlyCount "115"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. Nc3 0-0 6. a3 d6 7. Be3 Be6 8. Ng5 Bxc4 9. dxc4 Qd7 10. Qd3 h6 11. Nf3 a6 12. h3 b5 13. 0-0 bxc4 14. Qxc4 Nd8 15. Rfd1 Ne6 16. Nxe5 Qc8 17. Nc6 Re8 18. b4 Bf8 19. a4 g6 20. a5 Bg7 21. Rab1 Ng5 22. Bxg5 hxg5 23. Nd5 Qe6 24. Nxf6+ Qxf6 25. Rb3 g4 26. hxg4 Qg5 27. Rf3 Re6 28. Qd5 Qxd5 29. exd5 Re4 30. g5 Rae8 31. Rdd3 Rg4 32. Rde3 Rxe3 33. Rxe3 Kf8 34. Re7 Bc3 35. Rxc7 Bxb4 36. Rc8+ Kg7 37. Nxb4 Rxb4 38. Rc6 Rb5 39. c4 Rxa5 40. Rxd6 Ra1+ 41. Kh2 Rc1 42. Rc6 Kf8 43. d6 Ke8 44. c5 a5 45. Rc8+ Kd7 46. Rc7+ Kd8 47. f4 a4 48. Rxf7 Rxc5 49. Ra7 Rc4 50. Kg3 Rc3+ 51. Kg4 a3 52. g3 Rd3 53. Kh3 Kc8 54. d7+ Rxd7 55. Rxa3 Rd6 56. Re3 Kd7 57. g4 Rd5 58. f5 1-0

[Event "American Continental 19th"]
[Site "Foz do Iguacu"]
[Date "2025.05.23"]
[Round "1"]
[White "Fier, Alexandr"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2556"]
[BlackElo "2056"]
[PlyCount "115"]
[EventDate "2025.05.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "BRA"]
[SourceTitle "CB23_2025"]
[SourceDate "2025.06.04"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. Nc3 0-0 6. a3 d6 7. Be3 Be6 8. Ng5 Bxc4 9. dxc4 Qd7 10. Qd3 h6 11. Nf3 a6 12. h3 b5 13. 0-0 bxc4 14. Qxc4 Nd8 15. Rfd1 Ne6 16. Nxe5 Qc8 17. Nc6 Re8 18. b4 Bf8 19. a4 g6 20. a5 Bg7 21. Rab1 Ng5 22. Bxg5 hxg5 23. Nd5 Qe6 24. Nxf6+ Qxf6 25. Rb3 g4 26. hxg4 Qg5 27. Rf3 Re6 28. Qd5 Qxd5 29. exd5 Re4 30. g5 Rae8 31. Rdd3 Rg4 32. Rde3 Rxe3 33. Rxe3 Kf8 34. Re7 Bc3 35. Rxc7 Bxb4 36. Rc8+ Kg7 37. Nxb4 Rxb4 38. Rc6 Rb5 39. c4 Rxa5 40. Rxd6 Ra1+ 41. Kh2 Rc1 42. Rc6 Kf8 43. d6 Ke8 44. c5 a5 45. Rc8+ Kd7 46. Rc7+ Kd8 47. f4 a4 48. Rxf7 Rxc5 49. Ra7 Rc4 50. Kg3 Rc3+ 51. Kg4 a3 52. g3 Rd3 53. Kh3 Kc8 54. d7+ Rxd7 55. Rxa3 Rd6 56. Re3 Kd7 57. g4 Rd5 58. f5 1-0

[Event "Wch Seniors 65 32nd"]
[Site "Porto Santo"]
[Date "2024.11.24"]
[Round "7"]
[White "Markzon, Gregory"]
[Black "Hugentobler, Patrick"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2057"]
[BlackElo "2216"]
[PlyCount "73"]
[EventDate "2024.11.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POR"]
[SourceTitle "CB49_2024"]
[SourceDate "2024.12.04"]
[SourceVersion "1"]
[SourceVersionDate "2024.12.04"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 c6 7. 0-0 0-0 8. Bf4 Nh5 9. cxd5 Nxf4 10. gxf4 exd5 11. Nc3 Bd6 12. e3 Bf5 13. Ne2 Qc8 14. Ng3 Bh3 15. Bxh3 Qxh3 16. Kh1 f6 17. Rg1 Rf7 18. Rg2 Nd7 19. Qd3 Be7 20. Rag1 Kh8 21. Nd2 g6 22. Qb3 Nb6 23. Qd3 Bd6 24. f5 g5 25. e4 dxe4 26. Ndxe4 Rd8 27. Qe2 Bxg3 28. Rxg3 Qxf5 29. Rf3 Qd5 30. Rg2 Re7 31. Re3 Qxd4 32. Nxg5 Qd1+ 33. Rg1 Qd5+ 34. f3 Rxe3 35. Qxe3 fxg5 36. Qc3+ Qd4 37. Rd1 0-1

[Event "Wch Seniors 65 32nd"]
[Site "Porto Santo"]
[Date "2024.11.22"]
[Round "6"]
[White "Ftacnik, Lubomir"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "D87"]
[WhiteElo "2444"]
[BlackElo "2057"]
[PlyCount "57"]
[EventDate "2024.11.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POR"]
[SourceTitle "CB49_2024"]
[SourceDate "2024.12.04"]
[SourceVersion "1"]
[SourceVersionDate "2024.12.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 0-0 8. Ne2 c5 9. 0-0 Nc6 10. Be3 Bd7 11. Rb1 a6 12. Bd3 Qc7 13. h4 Rfd8 14. h5 b5 15. h6 Bh8 16. Qd2 b4 17. Rfc1 bxc3 18. Qxc3 cxd4 19. Bxd4 Bxd4 20. Nxd4 e5 21. Nxc6 Bxc6 22. Bc2 Rac8 23. Ba4 Bxe4 24. Qe3 Bxb1 25. Rxc7 Rxc7 26. Qxe5 Rc1+ 27. Kh2 Kf8 28. Bb3 Rcc8 29. Qf6 1-0

[Event "Wch Seniors 65 32nd"]
[Site "Porto Santo"]
[Date "2024.11.21"]
[Round "5"]
[White "Markzon, Gregory"]
[Black "Chapman, Terry PD"]
[Result "1-0"]
[ECO "E26"]
[WhiteElo "2057"]
[BlackElo "2273"]
[PlyCount "50"]
[EventDate "2024.11.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POR"]
[SourceTitle "CB49_2024"]
[SourceDate "2024.12.04"]
[SourceVersion "1"]
[SourceVersionDate "2024.12.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. a3 Bxc3+ 6. bxc3 Nc6 7. Bd3 b6 8. Ne2 Na5 9. e4 Ba6 10. e5 Ng8 11. Ng3 f5 12. Bxf5 exf5 13. Nxf5 Nxc4 14. Qf3 d6 15. e6 Qc8 16. 0-0 Qb7 17. Nxg7+ Kd8 18. Bg5+ Kc7 19. Qg3 h6 20. Bh4 Rf8 21. Rfe1 Kc6 22. e7 Nxe7 23. Rxe7 Qb8 24. Qg4 Bc8 25. d5+ Kxd5 1-0

[Event "Wch Seniors 65 32nd"]
[Site "Porto Santo"]
[Date "2024.11.20"]
[Round "4"]
[White "Legky, Nikolay A"]
[Black "Markzon, Gregory"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2338"]
[BlackElo "2057"]
[PlyCount "125"]
[EventDate "2024.11.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POR"]
[SourceTitle "CB49_2024"]
[SourceDate "2024.12.04"]
[SourceVersion "1"]
[SourceVersionDate "2024.12.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. a4 Ngf6 5. Nc3 a6 6. Be2 g6 7. 0-0 Bg7 8. a5 0-0 9. d4 cxd4 10. Qxd4 Nc5 11. Qb4 b5 12. axb6 Rb8 13. e5 Rxb6 14. Qa3 Nfe4 15. Be3 Rb8 16. Rfd1 Nxc3 17. Qxc3 Qb6 18. Bd4 Qb4 19. Qe3 Ne6 20. Bc3 Qb6 21. exd6 Qxe3 22. fxe3 Bxc3 23. dxe7 Re8 24. bxc3 Rxe7 25. Nd4 Nxd4 26. cxd4 Rxe3 27. Bd3 Bf5 28. Bxf5 gxf5 29. Rd2 Rc3 30. d5 Rb2 31. Rc1 Kf8 32. d6 Rb8 33. Ra1 Rc6 34. Ra5 Rd8 35. Rad5 Ke8 36. Kf2 Kd7 37. Rxf5 Ke6 38. g4 f6 39. Re2+ Kxd6 40. Rxf6+ Kc5 41. Re5+ Kd4 42. Rxc6 Kxe5 43. Kg3 Ra8 44. Rc7 h6 45. Rc5+ Kd4 46. Ra5 Kc3 47. Kh4 Kb4 48. Ra2 a5 49. Kh5 Rh8 50. c3+ Kb5 51. c4+ Kb4 52. c5 a4 53. c6 Kb3 54. Rf2 a3 55. h4 a2 56. Rf1 Kb2 57. c7 a1Q 58. Rxa1 Kxa1 59. c8Q Rxc8 60. Kxh6 Rh8+ 61. Kg5 Rg8+ 62. Kf4 Rf8+ 63. Ke5 1/2-1/2

[Event "Wch Seniors 65 32nd"]
[Site "Porto Santo"]
[Date "2024.11.19"]
[Round "3"]
[White "Markzon, Gregory"]
[Black "Rivera, Daniel"]
[Result "1/2-1/2"]
[ECO "E95"]
[WhiteElo "2057"]
[BlackElo "2245"]
[PlyCount "116"]
[EventDate "2024.11.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POR"]
[SourceTitle "CB49_2024"]
[SourceDate "2024.12.04"]
[SourceVersion "1"]
[SourceVersionDate "2024.12.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 Nbd7 7. 0-0 e5 8. Re1 Re8 9. d5 Nh5 10. Bf1 a5 11. b3 Nc5 12. g3 f5 13. Bg5 Qd7 14. exf5 Qxf5 15. Be3 e4 16. Bd4 Rf8 17. Nh4 Qf7 18. Nxe4 Nxe4 19. Rxe4 g5 20. Ng2 Nf6 21. Re1 Ng4 22. f4 h6 23. Bxg7 Qxg7 24. Qd2 Bd7 25. Rad1 Rf7 26. Qd4 Qg6 27. Rd2 Raf8 28. Bd3 Qh5 29. h4 Nf6 30. fxg5 hxg5 31. Rf2 Ng4 32. Rxf7 Rxf7 33. Be2 gxh4 34. Bxg4 Bxg4 35. Re8+ Rf8 36. Rxf8+ Kxf8 37. Qf6+ Ke8 38. Nxh4 Qh7 39. Ng6 Bh5 40. Qf8+ Kd7 41. Qf5+ Kd8 42. Nh4 Qxf5 43. Nxf5 Bg6 44. Nd4 a4 45. b4 Bd3 46. c5 dxc5 47. Ne6+ Ke7 48. Nxc5 Bc4 49. a3 b5 50. Kf2 Kd6 51. Ke3 Kxd5 52. g4 Ba2 53. Kd3 Bb1+ 54. Kc3 Bg6 55. g5 Ke5 56. Na6 c6 57. Nb8 Be8 58. Kd3 Kd5 1/2-1/2

[Event "Wch Seniors 65 32nd"]
[Site "Porto Santo"]
[Date "2024.11.18"]
[Round "2"]
[White "Markzon, Gregory"]
[Black "Vatter, Hans Joachim"]
[Result "1-0"]
[ECO "E21"]
[WhiteElo "2057"]
[BlackElo "2212"]
[PlyCount "71"]
[EventDate "2024.11.17"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POR"]
[SourceTitle "CB49_2024"]
[SourceDate "2024.12.04"]
[SourceVersion "1"]
[SourceVersionDate "2024.12.04"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 0-0 5. Bg5 h6 6. Bh4 c5 7. e3 Bxc3+ 8. bxc3 d6 9. Be2 Qe7 10. 0-0 e5 11. Nd2 g5 12. Bg3 Re8 13. dxe5 dxe5 14. e4 Nc6 15. Qc2 Kg7 16. Rfd1 h5 17. f3 h4 18. Bf2 Nh5 19. Nf1 Nf4 20. Ne3 Rh8 21. Nd5 Qf8 22. Bf1 Be6 23. Nc7 Rc8 24. Nxe6+ Nxe6 25. Rd7 Rc7 26. Rad1 Qc8 27. R7d6 Rd8 28. g3 hxg3 29. hxg3 Rcd7 30. Rxd7 Rxd7 31. Rd5 b6 32. Bh3 Re7 33. Qd2 Kf6 34. Be3 Qg8 35. Rd6 Re8 36. Rxc6 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.06.02"]
[Round "11"]
[White "Ynojosa Aponte, Felix Jose"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2377"]
[BlackElo "2002"]
[PlyCount "59"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 d6 6. f4 e6 7. Nc3 Nc6 8. Nf3 Nxc3 9. bxc3 Be7 10. Bd3 b6 11. Bd2 Bb7 12. Qb1 h6 13. 0-0 Qc7 14. Qe1 0-0-0 15. Rc1 g5 16. fxg5 dxe5 17. gxh6 f5 18. Bc4 Qd6 19. Rf2 e4 20. Ng5 Rxh6 21. Bf4 e5 22. dxe5 Nxe5 23. Nf7 Nf3+ 24. Rxf3 Qc5+ 25. Rf2 Rg6 26. Nxd8 e3 27. Nxb7 exf2+ 28. Qxf2 Qxc4 29. Rd1 Qc6 30. Nd6+ 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.31"]
[Round "10"]
[White "Markzon, Gregory"]
[Black "Johnson, Joshua"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "2002"]
[BlackElo "2310"]
[PlyCount "128"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. c4 c6 2. Nf3 d5 3. d4 Nf6 4. e3 Bf5 5. Nc3 e6 6. Bd3 Bg6 7. Ne5 Nbd7 8. Nxg6 hxg6 9. 0-0 Bd6 10. g3 dxc4 11. Bxc4 Nb6 12. Be2 e5 13. dxe5 Bxe5 14. Bf3 Qe7 15. Qe2 0-0-0 16. a4 a5 17. e4 Qe6 18. Bg2 Nc4 19. Bg5 Rd4 20. Rac1 Kb8 21. b3 Nb6 22. Na2 Ng4 23. h3 f6 24. Bd2 Qxb3 25. Bc3 Rxa4 26. Qxg4 Rxa2 27. Bxe5+ fxe5 28. Qxg6 Rd8 29. Qxg7 Nc4 30. h4 Ka7 31. Qe7 Rd4 32. h5 Qb4 33. Qf7 Rad2 34. h6 Nb6 35. h7 Rd8 36. Qf6 Qf8 37. Qxe5 Ra2 38. Ra1 Nc4 39. h8Q Qxh8 40. Qxh8 Rxh8 41. Rxa2 b5 42. Rc1 Kb6 43. Bf1 Ne5 44. Be2 c5 45. Rac2 c4 46. f4 Nc6 47. Kg2 Nd4 48. Bxc4 Nxc2 49. Rxc2 bxc4 50. Rxc4 Kb5 51. Rc1 a4 52. e5 a3 53. Kf3 Kb4 54. e6 Rf8 55. g4 a2 56. f5 Re8 57. Kf4 Kb3 58. Ra1 Kb2 59. Rxa2+ Kxa2 60. Ke5 Kb3 61. f6 Kc4 62. f7 Rf8 63. Kf6 Rh8 64. e7 Kd5 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.30"]
[Round "9"]
[White "Santos Flores, Alberto Javier"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2191"]
[BlackElo "2002"]
[PlyCount "90"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Bxd7 7. 0-0 e5 8. Qd3 h6 9. a4 Nf6 10. a5 Be7 11. Be3 Bc6 12. Nc3 0-0 13. Rfd1 Qd7 14. Nd2 d5 15. exd5 Nxd5 16. Nf3 Qe6 17. Nxd5 e4 18. Nd4 Qxd5 19. Nxc6 Qxc6 20. Qd7 Bf6 21. c3 Be5 22. Qxc6 bxc6 23. Bc5 Rfe8 24. Rd7 f5 25. Rad1 f4 26. Kf1 Kh7 27. Rf7 Rad8 28. Rdd7 f3 29. g3 Bf6 30. Bb6 Rxd7 31. Rxd7 Re5 32. b4 Rh5 33. Bd4 Rxh2 34. Kg1 Rg2+ 35. Kf1 Rh2 36. Ke1 Kg6 37. Rd6 Kf5 38. Bc5 Bg5 39. Kd1 e3 40. Bxe3 Bxe3 41. Rd3 Bxf2 42. Rxf3+ Ke4 43. Rf7 Kd3 44. Rd7+ Kxc3 45. Rxg7 Bd4 0-1

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.29"]
[Round "8"]
[White "Markzon, Gregory"]
[Black "Bermudez, Edilson Enrique"]
[Result "1-0"]
[ECO "D06"]
[WhiteElo "2002"]
[BlackElo "1792"]
[PlyCount "111"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 d5 3. cxd5 Nxd5 4. e4 Nb6 5. d4 Bg4 6. Be2 e6 7. 0-0 Be7 8. Nc3 c6 9. Be3 0-0 10. Qb3 N8d7 11. Rfd1 Nf6 12. a4 Qb8 13. h3 Bh5 14. a5 Nbd7 15. Rac1 Bg6 16. Bg5 Re8 17. Bd3 Nh5 18. Bxe7 Rxe7 19. e5 Bxd3 20. Rxd3 Nf4 21. Rd2 Nf8 22. Ne4 Qd8 23. Qa3 N8g6 24. Nd6 Rd7 25. Kh2 Ne7 26. g3 Nfd5 27. Ng5 Nf5 28. Nge4 Nxd6 29. exd6 Rb8 30. a6 bxa6 31. Qxa6 Rb6 32. Qa4 f5 33. Nc5 Rxd6 34. Re1 Nc7 35. Qc4 Qf6 36. Re5 a5 37. Nd3 Rb8 38. Qc5 Rbd8 39. Qxa5 Nb5 40. Nb4 Nxd4 41. Rd3 f4 42. g4 Qh4 43. Kg1 f3 44. Rh5 Qf6 45. Kf1 Nb5 46. Re3 Rd1+ 47. Re1 Qxb2 48. Rhe5 R1d2 49. Kg1 Qd4 50. R5e3 h5 51. Nxc6 Qb2 52. Rxf3 hxg4 53. hxg4 R2d7 54. Nxd8 Nd4 55. Rfe3 Qb7 56. Nxb7 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.28"]
[Round "7"]
[White "Betaneli, Alexander"]
[Black "Markzon, Gregory"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2175"]
[BlackElo "2002"]
[PlyCount "101"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bd3 0-0 6. 0-0 c6 7. Re1 a5 8. a4 Na6 9. c3 Nc7 10. h3 Nd7 11. Qc2 b6 12. Nc4 Ba6 13. Bg5 Ne6 14. Be3 Qc7 15. Na3 Bxd3 16. Qxd3 Nf6 17. c4 Rfd8 18. Rac1 Qb7 19. Nb1 Rab8 20. Nc3 Nc7 21. d5 Nd7 22. Bg5 Nc5 23. Qc2 Re8 24. Rcd1 N7a6 25. Nd4 Nb4 26. Qb1 cxd5 27. exd5 Bxd4 28. Rxd4 e5 29. dxe6 Nxe6 30. Rde4 d5 31. cxd5 Nxd5 32. Nxd5 Qxd5 33. Bf6 Rec8 34. Bc3 Nc5 35. Rd4 Qc6 36. Qd1 Re8 37. Rxe8+ Rxe8 38. Rc4 f6 39. Qd4 Re4 40. Qd8+ Kf7 41. Rxe4 Nxe4 42. Qh8 Nxc3 43. Qxh7+ Ke6 44. Qg8+ Ke7 45. bxc3 Qxc3 46. Qg7+ Ke6 47. Qxg6 Qc1+ 48. Kh2 Qf4+ 49. Kg1 Qc1+ 50. Kh2 Qf4+ 51. Kg1 1/2-1/2

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.27"]
[Round "5"]
[White "Francisco Guecamburu, Candela Be"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2292"]
[BlackElo "2002"]
[PlyCount "61"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 e6 4. Nb5 Na6 5. a3 Be7 6. e3 0-0 7. Nf3 Ne4 8. Bd3 f5 9. Bxe4 fxe4 10. Ne5 c6 11. Nc3 c5 12. Qd2 cxd4 13. exd4 Nb8 14. f3 exf3 15. Nxf3 Nc6 16. 0-0 a6 17. Rae1 Bf6 18. Nd1 Bd7 19. Nf2 Qb6 20. c3 Na5 21. Nd3 Bb5 22. Rf2 Rae8 23. Nde5 Nc4 24. Nxc4 dxc4 25. Bg5 Qd8 26. Bxf6 gxf6 27. Re4 Rf7 28. Rg4+ Kh8 29. Ne5 Rc7 30. Qf4 Rf8 31. Qh6 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.27"]
[Round "6"]
[White "Markzon, Gregory"]
[Black "Murcia Molina, Manuel Hernando"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "2002"]
[BlackElo "1845"]
[PlyCount "89"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. d4 c6 5. Bg2 Nbd7 6. 0-0 Ne4 7. Nc3 Nxc3 8. bxc3 dxc4 9. a4 a5 10. Bf4 Be7 11. h4 Nf6 12. Ne5 Nd5 13. Bd2 0-0 14. Nxc4 b5 15. Ne5 Qc7 16. h5 f6 17. Nd3 Bd7 18. e4 Nb6 19. axb5 cxb5 20. e5 Nd5 21. exf6 Bxf6 22. Rc1 Ra7 23. Nc5 a4 24. Re1 Nb6 25. Bf4 Qc8 26. Be4 Nd5 27. Bd6 Rd8 28. Bb1 Be8 29. Be5 a3 30. Ba2 Bf7 31. Qe2 Re8 32. Qxb5 Bxh5 33. Bxf6 gxf6 34. Rxe6 Qa8 35. Rxe8+ Bxe8 36. Bxd5+ Kg7 37. Ne6+ Kh8 38. Qc5 Bc6 39. Bxc6 Qb8 40. Qf8+ Qxf8 41. Nxf8 a2 42. Ra1 Ra5 43. Ne6 Kg8 44. Nf4 Kg7 45. Bd5 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.26"]
[Round "4"]
[White "Markzon, Gregory"]
[Black "Mejia Ospina, Juan F"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2002"]
[BlackElo "1770"]
[PlyCount "75"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 d6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. Nc3 e5 7. d4 Nc6 8. d5 Ne7 9. Rb1 Bf5 10. Ra1 Qc8 11. Re1 h6 12. e4 Bh3 13. Bd2 Bxg2 14. Kxg2 Ne8 15. b4 f5 16. Rc1 Nf6 17. exf5 Nxf5 18. c5 Qd7 19. b5 e4 20. Nxe4 Nxd5 21. Bxh6 Nxh6 22. Qxd5+ Qf7 23. Qxf7+ Nxf7 24. cxd6 cxd6 25. Red1 Ne5 26. Nxe5 dxe5 27. Rc7 Rf7 28. Rxf7 Kxf7 29. Rd7+ Kf8 30. Rxb7 Bh6 31. a4 Bc1 32. Rh7 Re8 33. Rxa7 Bb2 34. b6 Bd4 35. a5 Re7 36. Rxe7 Kxe7 37. b7 Ba7 38. Nc5 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.25"]
[Round "2"]
[White "Markzon, Gregory"]
[Black "Munoz Triana, Joseph Steve"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2002"]
[BlackElo "2362"]
[PlyCount "70"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 c5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc6 6. d4 Nf6 7. 0-0 cxd4 8. Qa4 Qd7 9. Rd1 e5 10. e3 d3 11. Nc3 Be7 12. e4 0-0 13. Bg5 Rd8 14. Bxf6 Bxf6 15. Nd5 Ne7 16. Qb3 Nxd5 17. Rxd3 Qc7 18. Rxd5 Be6 19. Rxd8+ Rxd8 20. Qa4 Qb6 21. Qa3 Rc8 22. Ne1 Rd8 23. Nf3 g5 24. Qc3 g4 25. Nh4 Bxh4 26. gxh4 Qd4 27. Qc1 Qd2 28. Qc7 Qd6 29. Qxb7 Rb8 30. Qxa7 Rxb2 31. a4 Qb4 32. Qe3 Rb1+ 33. Rxb1 Qxb1+ 34. Bf1 Bc4 35. Qg5+ Kf8 1/2-1/2

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.25"]
[Round "3"]
[White "Vasquez Toledo, Cristian"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2274"]
[BlackElo "2002"]
[PlyCount "63"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 h5 9. Nd5 Bxd5 10. exd5 Nbd7 11. Qd2 a5 12. a4 Be7 13. Bb5 0-0 14. 0-0 g6 15. c4 b6 16. Rae1 Kh7 17. h3 h4 18. f4 Ne4 19. Qc2 Ng3 20. Rf2 Nc5 21. Nxc5 bxc5 22. Bd2 exf4 23. Rxf4 Ra7 24. Bc3 Bg5 25. Rf3 Re7 26. Qf2 f5 27. Re6 Ne4 28. Qe1 Ref7 29. Bxa5 Qb8 30. Bc3 Bd8 31. Be8 Rb7 32. Rxe4 1-0

[Event "American Continental 18th"]
[Site "Medellin"]
[Date "2024.05.24"]
[Round "1"]
[White "Jacome Revelo, Daniela Alexandra"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "1620"]
[BlackElo "2002"]
[PlyCount "72"]
[EventDate "2024.05.24"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 e5 6. Qd3 h6 7. c4 Ngf6 8. Nc3 Be7 9. 0-0 0-0 10. h3 Nc5 11. Qe2 a6 12. Ba4 Nfxe4 13. Nxe4 Nxa4 14. b3 Nb6 15. Rd1 Qc7 16. Ba3 d5 17. Bxe7 dxe4 18. Bd6 exf3 19. Qxe5 Qd8 20. Be7 Nd7 21. Qd6 Qa5 22. Bxf8 Nxf8 23. Qd8 Qh5 24. Qd5 Qxd5 25. cxd5 fxg2 26. Kxg2 Bf5 27. Rac1 Rd8 28. f3 Rd7 29. Rc5 g6 30. Kg3 Kg7 31. h4 Ne6 32. h5 Nc7 33. Rcc1 Ne8 34. d6 Be6 35. Rc5 Nxd6 36. Rc3 Nf5+ 0-1

[Event "US op 123nd"]
[Site "Grand Rapids"]
[Date "2023.08.04"]
[Round "7"]
[White "Markzon, Gregory"]
[Black "Matviishen, Viktor"]
[Result "0-1"]
[ECO "B91"]
[WhiteElo "2071"]
[BlackElo "2550"]
[PlyCount "64"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be7 8. Bg2 0-0 9. 0-0 Nbd7 10. h3 b5 11. a3 h5 12. Nd5 Nxd5 13. exd5 h4 14. f4 Bb7 15. g4 Rc8 16. Kh2 Re8 17. Nc3 exf4 18. Bxf4 Rc4 19. Qf3 Bf6 20. Kh1 Bxc3 21. bxc3 Qf6 22. Bxd6 Qxf3 23. Bxf3 Rxc3 24. Bg2 Nb6 25. Rf2 Bxd5 26. Bxd5 Nxd5 27. Rd1 Rxh3+ 28. Kg2 Rg3+ 29. Kh1 Nc3 30. Rd4 Rge3 31. Bb4 Ne4 32. Rd7 Nxf2+ 0-1

[Event "US op 123nd"]
[Site "Grand Rapids"]
[Date "2023.08.03"]
[Round "6"]
[White "Glashausser, Sho"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "1969"]
[BlackElo "2071"]
[PlyCount "86"]
[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 d6 3. Bb5+ Nd7 4. c3 Ngf6 5. Qe2 a6 6. Ba4 e6 7. 0-0 Be7 8. d4 0-0 9. Re1 e5 10. Bc2 Re8 11. d5 Nf8 12. b4 cxb4 13. cxb4 Ng6 14. Nc3 Nh5 15. g3 Bg4 16. Qe3 h6 17. Bd3 Nhf4 18. Bf1 Nh3+ 19. Bxh3 Bxh3 20. a4 Qd7 21. Kh1 f5 22. Ng1 f4 23. Qe2 Rf8 24. f3 fxg3 25. hxg3 Qc8 26. Bd2 Bd7 27. a5 Qe8 28. Nd1 Nh8 29. Qh2 Nf7 30. Nb2 Bb5 31. Rac1 Rc8 32. Rxc8 Qxc8 33. Rc1 Qd8 34. Nc4 Ng5 35. Nb6 Qe8 36. Rc3 Qg6 37. Nc8 Bd8 38. g4 Kh7 39. Kg2 Nxe4 40. fxe4 Qxe4+ 41. Nf3 Qxd5 42. Nxd6 Bc6 43. Rxc6 Qxf3+ 0-1

[Event "US op 123nd"]
[Site "Grand Rapids"]
[Date "2023.08.01"]
[Round "4"]
[White "Brodsky, David"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2493"]
[BlackElo "2071"]
[PlyCount "93"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 d5 10. exd5 Nxd5 11. Nxc6 bxc6 12. Bd4 Bxd4 13. Qxd4 Qb6 14. Na4 Qc7 15. g3 Rb8 16. Qc5 Be6 17. Bc4 Qb7 18. Qd4 Bh3 19. Rhe1 Rfd8 20. Nc5 Qb6 21. Nb3 Be6 22. Qxb6 Rxb6 23. Nc5 Rd6 24. Bb3 h6 25. Nxe6 fxe6 26. Rd3 Rb8 27. c4 Nc7 28. Rde3 c5 29. Re5 Rc6 30. Bc2 Kf7 31. Be4 Rcb6 32. Rxc5 Rxb2 33. Rxc7 Rxa2 34. Bc2 a5 35. Re3 a4 36. Ra7 Rb4 37. Rc3 Ra1+ 38. Kd2 a3 39. Raxa3 Rxa3 40. Rxa3 Rxc4 41. Ra6 Rd4+ 42. Ke3 Rd6 43. Rxd6 exd6 44. Kf4 Kf6 45. Bb1 Kf7 46. h4 Kf6 47. g4 1-0

[Event "US op 123nd"]
[Site "Grand Rapids"]
[Date "2023.07.30"]
[Round "2"]
[White "Donham, William"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1586"]
[BlackElo "2071"]
[PlyCount "54"]
[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. c3 Nf6 3. e5 Nd5 4. Nf3 e6 5. d4 cxd4 6. cxd4 Nc6 7. Bc4 Nb6 8. Bd3 Nb4 9. Be2 d6 10. a3 Nc6 11. 0-0 Be7 12. Nc3 0-0 13. Qc2 dxe5 14. dxe5 Nd4 15. Nxd4 Qxd4 16. Bd3 Qxe5 17. Bxh7+ Kh8 18. Be4 f5 19. Bd3 Bd7 20. Bd2 Bc6 21. Rae1 Qd6 22. Re3 Rf6 23. Rh3+ Kg8 24. Qd1 Rg6 25. g3 Qxd3 26. Qh5 Qf3 27. Qxf3 Bxf3 0-1

[Event "American Continental 17th"]
[Site "Juan Dolio"]
[Date "2023.05.15"]
[Round "1"]
[White "Hungaski, Robert Andrew"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2506"]
[BlackElo "2079"]
[PlyCount "82"]
[EventDate "2023.05.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "DOM"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. h4 c5 4. d5 b5 5. h5 Nxh5 6. cxb5 d6 7. e4 Nd7 8. Nc3 Bg7 9. a4 a6 10. Ra3 Ne5 11. Be2 Qa5 12. Bd2 Qb4 13. Qc2 c4 14. Nd1 Qc5 15. Be3 Qb4+ 16. Bd2 Qc5 17. b4 cxb3 18. Qxc5 dxc5 19. Rxb3 c4 20. Rb1 axb5 21. axb5 0-0 22. Nf3 Nd3+ 23. Bxd3 cxd3 24. Bc3 Nf6 25. Nd2 Bb7 26. Rh3 Rfc8 27. Rxd3 Ra3 28. Rf3 Ra2 29. Rb4 Bh6 30. Rd3 Nd7 31. Nb3 Nc5 32. Nxc5 Rxc5 33. Bd4 Rcc2 34. Rb2 f5 35. Rxa2 Rxa2 36. exf5 gxf5 37. Be5 Kf7 38. Nc3 Rb2 39. g3 Bc8 40. g4 Bd7 41. d6 e6 1-0

[Event "Reykjavik op"]
[Site "Reykjavik"]
[Date "2023.04.04"]
[Round "9"]
[White "Markzon, Gregory"]
[Black "Hill, Andy"]
[Result "1/2-1/2"]
[ECO "E73"]
[WhiteElo "2059"]
[BlackElo "1802"]
[PlyCount "100"]
[EventDate "2023.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ISL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Be3 Nbd7 7. g4 c5 8. d5 Qa5 9. f3 h5 10. h3 a6 11. Qd2 Rb8 12. a4 Nb6 13. Bd3 Qb4 14. Nd1 Qxd2+ 15. Kxd2 Na8 16. Ne2 Nc7 17. Ndc3 Bd7 18. e5 dxe5 19. Bxc5 Bh6+ 20. Kc2 Rfe8 21. Rag1 Bg7 22. Ng3 hxg4 23. hxg4 b6 24. Be3 b5 25. axb5 axb5 26. g5 bxc4 27. Bxc4 Nh7 28. Rh4 Rec8 29. Rgh1 Nf8 30. b3 Nb5 31. Bxb5 Bxb5 32. Nge4 Be2 33. d6 Bxf3 34. dxe7 Bxe4+ 35. Rxe4 Ne6 36. Kb2 Nc7 37. Rd1 f5 38. gxf6 Bxf6 39. Rc4 Kf7 40. Ne4 Ne8 41. Rxc8 Rxc8 42. Rd7 Rc6 43. Ng5+ Bxg5 44. Bxg5 Re6 45. Rd1 Nf6 46. b4 e4 47. Kc3 e3 48. Bxf6 Kxf6 49. Kd3 e2 50. Re1 Kxe7 1/2-1/2

[Event "Reykjavik op"]
[Site "Reykjavik"]
[Date "2023.04.02"]
[Round "7"]
[White "Markzon, Gregory"]
[Black "Jonsson, Olafur Gisli"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2059"]
[BlackElo "1817"]
[PlyCount "85"]
[EventDate "2023.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ISL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 c5 3. g3 b6 4. Bg2 Bb7 5. 0-0 e6 6. b3 Be7 7. Bb2 d6 8. Nc3 a6 9. Re1 Nbd7 10. e4 0-0 11. Qe2 Qc7 12. d4 cxd4 13. Nxd4 Rfe8 14. h3 Bf8 15. Rad1 Rad8 16. g4 g6 17. Nc2 Qb8 18. f4 h6 19. Kh1 Bg7 20. Qf2 Nc5 21. Ba1 Qa8 22. Qe2 d5 23. e5 Nfe4 24. Kh2 g5 25. Nxe4 dxe4 26. fxg5 hxg5 27. Qe3 Nd3 28. Rf1 Nf4 29. Bd4 Rxd4 30. Nxd4 Bxe5 31. Kh1 Nxg2 32. Kxg2 Bf4 33. Rxf4 gxf4 34. Qxf4 e3+ 35. Kg1 Bh1 36. Qg5+ Kf8 37. Qh6+ Kg8 38. Qg5+ Kh7 39. Qh5+ Kg7 40. Qg5+ Kf8 41. Qh6+ Ke7 42. Nf5+ exf5 43. Qd6# 1-0

[Event "Reykjavik op"]
[Site "Reykjavik"]
[Date "2023.04.01"]
[Round "5"]
[White "Markzon, Gregory"]
[Black "Wadsworth, Matthew J"]
[Result "0-1"]
[ECO "D18"]
[WhiteElo "2059"]
[BlackElo "2439"]
[PlyCount "66"]
[EventDate "2023.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ISL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. 0-0 0-0 9. Nh4 Nbd7 10. Nxf5 exf5 11. Bd2 a5 12. h3 Nb6 13. Bd3 g6 14. Na2 Bd6 15. b4 Bc7 16. bxa5 Qd6 17. g3 Nbd5 18. a6 bxa6 19. Qc2 Rfe8 20. Rfc1 Re6 21. Rab1 a5 22. Bf1 h5 23. Qc5 Qd8 24. Nc3 Nxc3 25. Qxc3 Ne4 26. Qc2 h4 27. gxh4 Qxh4 28. Be1 Ng5 29. Bg2 f4 30. Qd1 Nxh3+ 31. Kf1 fxe3 32. Rb2 exf2 33. Bc3 Rae8 0-1

[Event "Reykjavik op"]
[Site "Reykjavik"]
[Date "2023.04.01"]
[Round "6"]
[White "Song, Julien"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "D87"]
[WhiteElo "2348"]
[BlackElo "2059"]
[PlyCount "95"]
[EventDate "2023.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ISL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 0-0 8. Ne2 c5 9. Be3 Nc6 10. Rc1 Bd7 11. 0-0 Rc8 12. Qd2 Qa5 13. d5 Ne5 14. Bb3 Qa6 15. Ng3 Bb5 16. Rfd1 Nc4 17. Bxc4 Bxc4 18. Bh6 f6 19. Bxg7 Kxg7 20. h4 Rcd8 21. Qf4 b5 22. a3 Bb3 23. Re1 Qd6 24. Qg4 Kf7 25. Re3 e5 26. h5 a5 27. Rf3 Rg8 28. Qg5 Rdf8 29. Qh6 Rg7 30. Nf1 Bc4 31. Ne3 Be2 32. Rg3 Rfg8 33. f3 c4 34. Ra1 Bd3 35. Kf2 Qc5 36. hxg6+ hxg6 37. Rh3 Rb8 38. g4 b4 39. axb4 axb4 40. cxb4 Qd4 41. Rhh1 c3 42. Kg3 c2 43. Rhe1 f5 44. gxf5 Rbg8 45. f6 Kxf6 46. Ng4+ Kf7 47. Qg5 Rc8 48. Qf6+ 1-0

[Event "Reykjavik op"]
[Site "Reykjavik"]
[Date "2023.03.31"]
[Round "4"]
[White "Rosen, Eric S"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2357"]
[BlackElo "2059"]
[PlyCount "128"]
[EventDate "2023.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ISL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nc3 c5 4. dxc5 Bg7 5. e4 0-0 6. a3 b6 7. cxb6 Qxb6 8. Rb1 Bb7 9. Bd3 d5 10. Qe2 Nbd7 11. Nf3 d4 12. Nd1 Nc5 13. Nd2 Qe6 14. f3 Nh5 15. Bg3 Nxg3 16. hxg3 Nxd3+ 17. cxd3 Rac8 18. Nc4 Ba6 19. b3 Rb8 20. f4 Bxc4 21. dxc4 Qd6 22. Qa2 d3 23. 0-0 Qd4+ 24. Nf2 d2 25. Qc2 Rfd8 26. b4 Qe3 27. Rb3 Qe2 28. e5 d1Q 29. Qxd1 Rxd1 30. Rxd1 Qxc4 31. Rbd3 h6 32. Rd7 Qb3 33. R1d3 Qb2 34. Rxa7 Rc8 35. Rf3 Rc1+ 36. Kh2 Rc2 37. Kg1 g5 38. Ra8+ Kh7 39. fxg5 Qxe5 40. gxh6 Qe1+ 41. Kh2 Rxf2 42. hxg7 Kxg7 43. Rxf2 Qxf2 44. b5 Qb2 45. a4 Qb4 46. Kh3 e5 47. Re8 f6 48. Ra8 Kg6 49. Kh2 Kf5 50. Ra6 e4 51. Ra8 Kg6 52. Ra6 Qb3 53. Ra7 f5 54. Ra6+ Kg5 55. Ra7 Kf6 56. Ra8 Ke5 57. Re8+ Kd4 58. Rf8 e3 59. Rd8+ Kc3 60. Re8 Kd2 61. Rd8+ Ke1 62. Kg1 e2 63. Rf8 Qe3+ 64. Kh2 Qh6+ 0-1

[Event "Reykjavik op"]
[Site "Reykjavik"]
[Date "2023.03.30"]
[Round "3"]
[White "Markzon, Gregory"]
[Black "Cederstam Barsk, Carl"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2059"]
[BlackElo "2255"]
[PlyCount "113"]
[EventDate "2023.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ISL"]
[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. g3 dxc4 4. Bg2 c5 5. Nf3 Nc6 6. 0-0 cxd4 7. Qa4 Bd7 8. Qxc4 e5 9. Na3 f6 10. e3 Rc8 11. Qb3 Qb6 12. Qxb6 axb6 13. exd4 exd4 14. Re1+ Kf7 15. Bf1 Bc5 16. Nb5 g5 17. a3 Ra8 18. Bd2 Bg4 19. Be2 Nh6 20. b4 d3 21. Bd1 Be7 22. Bb3+ Kg6 23. Nfd4 Nf5 24. Ne6 Ng7 25. Nxg7 Kxg7 26. Bd5 Kf8 27. f3 Bf5 28. g4 Bd7 29. Kg2 Ne5 30. Nd4 Rd8 31. Ne6+ Bxe6 32. Bxe6 Kg7 33. f4 Ng6 34. fxg5 fxg5 35. Rac1 Nh4+ 36. Kh1 Bf6 37. Rc7+ Kh6 38. Rf1 Rhf8 39. Bf7 Be5 40. Rxb7 Rd6 41. Re7 Ng6 42. Re8 Rxe8 43. Bxe8 Nh4 44. b5 Rd4 45. Bb4 d2 46. Rd1 Re4 47. Bc6 Rxg4 48. Rxd2 Ng6 49. Bd7 Rc4 50. Rd1 Rc2 51. Rd2 Rc1+ 52. Kg2 Nh4+ 53. Kh3 Kg6 54. Be8+ Kg7 55. Rd7+ Kg8 56. Bf7+ Kh8 57. Kg4 1-0

[Event "Reykjavik op"]
[Site "Reykjavik"]
[Date "2023.03.30"]
[Round "2"]
[White "Opasiak, Dustin Tennessee"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "C18"]
[WhiteElo "1748"]
[BlackElo "2059"]
[PlyCount "76"]
[EventDate "2023.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ISL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Qc7 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Ne2 Nbc6 11. f4 Bd7 12. Qd3 dxc3 13. Rg1 0-0-0 14. g4 d4 15. Rb1 Be8 16. Rg3 Ng6 17. Qc4 Nh4 18. h3 a6 19. a4 Ne7 20. Qd3 Qc5 21. Ra1 Nc6 22. Qh7 Nb4 23. Ba3 d3 24. Bxb4 Qxb4 25. Rxd3 Rxd3 26. Qxd3 Bc6 27. Qxc3 Qe4 28. Rd1 Qh1 29. Rd6 Qe4 30. Kd1 Kb8 31. Rd4 Qh1 32. Ng3 Qg1 33. Rd3 Rc8 34. Qd4 Bf3+ 35. Kc1 Qxg3 36. Kb2 Qe1 37. Qd6+ Ka8 38. Rb3 Qxf1 0-1

[Event "Reykjavik op"]
[Site "Reykjavik"]
[Date "2023.03.29"]
[Round "1"]
[White "Markzon, Gregory"]
[Black "Colpe, Malte"]
[Result "0-1"]
[ECO "E29"]
[WhiteElo "2059"]
[BlackElo "2356"]
[PlyCount "56"]
[EventDate "2023.03.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ISL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. a3 Bxc3+ 6. bxc3 c5 7. Bd3 Nc6 8. Ne2 e5 9. d5 e4 10. Bc2 Na5 11. Ng3 Re8 12. 0-0 d6 13. f3 Nxc4 14. fxe4 Ng4 15. Qe1 g6 16. e5 Ngxe5 17. e4 Bd7 18. h3 Bb5 19. Bf4 Nb6 20. Rf2 Qh4 21. Qc1 Bd3 22. Nh1 c4 23. Qe3 Bxc2 24. Rxc2 Nd3 25. Ng3 Nxd5 26. Qf3 N5xf4 27. Rf1 Qg5 28. e5 Qxe5 0-1

[Event "Wch Seniors 65 30th"]
[Site "Assisi"]
[Date "2022.11.20"]
[Round "6"]
[White "Kiefer, Gerhard"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "B93"]
[WhiteElo "2260"]
[BlackElo "2042"]
[PlyCount "104"]
[EventDate "2022.11.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ITA"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e5 7. Nf3 Nbd7 8. a4 Be7 9. Bd3 0-0 10. 0-0 b6 11. Qe1 Bb7 12. Kh1 Re8 13. fxe5 dxe5 14. Qg3 Qc7 15. Nh4 Nf8 16. Nf5 Ng6 17. Nxe7+ Rxe7 18. Bg5 Re6 19. Bxf6 Rxf6 20. Rxf6 gxf6 21. Rf1 Qd6 22. Bc4 Rd8 23. h4 Kf8 24. h5 Nf4 25. h6 Ng6 26. Bd5 Bc8 27. Ne2 Ke7 28. Qb3 Be6 29. Rd1 Qc5 30. Rd3 Bxd5 31. Rxd5 Rxd5 32. exd5 Qf2 33. Qb4+ Kd7 34. Qg4+ f5 35. Qc4 Qh4+ 36. Qxh4 Nxh4 37. c4 a5 38. Ng3 f4 39. Ne4 Nf5 40. Ng5 f6 41. Nxh7 Ke7 42. Ng5 Nxh6 43. Ne6 Kd6 44. Ng7 e4 45. Kg1 Nf7 46. b3 Kc5 47. Nf5 Kb4 48. d6 Kxb3 49. d7 Kxa4 50. Kf2 Nd8 51. Ke2 Kb4 52. Nd6 a4 0-1

[Event "Wch Seniors 65 30th"]
[Site "Assisi"]
[Date "2022.11.18"]
[Round "4"]
[White "Markzon, Gregory"]
[Black "Binham, Timothy F"]
[Result "0-1"]
[ECO "C26"]
[WhiteElo "2042"]
[BlackElo "2284"]
[PlyCount "82"]
[EventDate "2022.11.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ITA"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 0-0 5. Nf3 d5 6. 0-0 dxe4 7. Ng5 Bg4 8. Qe1 Nc6 9. h3 Bh5 10. g4 Bg6 11. Ngxe4 Nxe4 12. Nxe4 Bb6 13. d3 Nd4 14. Qd1 f5 15. gxf5 Rxf5 16. Ng3 Rf7 17. Be3 c6 18. Rc1 Qh4 19. Qg4 Qxg4 20. hxg4 Raf8 21. Rfe1 h6 22. Kh1 Nf3 23. Re2 Nh4 24. Be4 Bxe4+ 25. Nxe4 Rf3 26. Bxb6 axb6 27. Re3 Rxe3 28. fxe3 Rf3 29. Re1 Rh3+ 30. Kg1 Nf3+ 31. Kg2 Nxe1+ 32. Kxh3 Nxc2 33. Nd6 Kf8 34. Nc4 Ke7 35. Nxe5 Nxe3 36. Kg3 Ke6 37. Kf4 Nd1 38. b3 g5+ 39. Ke4 Nc3+ 40. Kd4 Nb5+ 41. Ke4 Nd6+ 0-1

[Event "Wch Seniors 65 30th"]
[Site "Assisi"]
[Date "2022.11.16"]
[Round "2"]
[White "Hebert, Jean"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2333"]
[BlackElo "2042"]
[PlyCount "57"]
[EventDate "2022.11.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ITA"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 0-0 5. e4 d6 6. h3 e5 7. d5 c6 8. Be3 b5 9. dxc6 b4 10. Nd5 Nxc6 11. Bg5 Be6 12. Bd3 Bxd5 13. cxd5 Ne7 14. 0-0 Nh5 15. g3 h6 16. Bd2 Rb8 17. Rc1 Qb6 18. Be3 Qb7 19. Qa4 Nxd5 20. exd5 Qxd5 21. Be2 Qe6 22. Kg2 d5 23. Qc6 d4 24. Qxe6 fxe6 25. Bd2 e4 26. Nh4 d3 27. Bg4 Rb7 28. Bxe6+ Kh7 29. Bd5 1-0

[Event "World op 50th"]
[Site "Philadelphia"]
[Date "2022.07.02"]
[Round "4"]
[White "Markzon, Gregory"]
[Black "Chiu, Isaac"]
[Result "0-1"]
[ECO "D35"]
[WhiteElo "1991"]
[BlackElo "2233"]
[PlyCount "74"]
[EventDate "2022.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 209 Extra"]
[Source "ChessBase"]
[SourceDate "2022.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 Nbd7 8. Nge2 h6 9. Bh4 Nh5 10. Bxe7 Qxe7 11. g4 Nhf6 12. h3 Nb6 13. Ng3 g6 14. Qc2 Bd7 15. 0-0-0 0-0-0 16. Kb1 Kb8 17. Rc1 Qd6 18. Qb3 h5 19. g5 h4 20. Nge2 Ne8 21. a4 Be6 22. a5 Nc4 23. Bxc4 dxc4 24. Qa4 Qe7 25. Nf4 Qxg5 26. Nxe6 Qf5+ 27. Ka1 Qxe6 28. Qb4 Rh5 29. Na4 Rb5 30. Qc3 Nd6 31. Nc5 Qf5 32. Rc2 b6 33. axb6 axb6 34. Na6+ Kb7 35. Nb4 Ra8+ 36. Na2 Rb3 37. Qd2 Qb5 0-1

[Event "American Continental 16th"]
[Site "San Salvador"]
[Date "2022.05.09"]
[Round "10"]
[White "Markzon, Gregory"]
[Black "Chinchilla Miranda, Eugenio"]
[Result "0-1"]
[ECO "C85"]
[WhiteElo "2013"]
[BlackElo "2221"]
[PlyCount "65"]
[EventDate "2022.05.02"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ESA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Bxc6 dxc6 7. Qe1 Nd7 8. b3 c5 9. Bb2 Bd6 10. a4 0-0 11. Na3 f6 12. Nc4 Rf7 13. c3 Nf8 14. Ne3 Ng6 15. d4 Be6 16. d5 Bd7 17. c4 Nf4 18. Qd2 g6 19. Rfe1 h6 20. h4 Kh7 21. g3 Nh5 22. Bc1 Qf8 23. Bb2 Re8 24. Ng2 Rfe7 25. Qe2 Qf7 26. a5 f5 27. Nh2 Rf8 28. exf5 gxf5 29. Rad1 e4 30. Bc1 f4 31. g4 f3 32. Qd2 fxg2 33. gxh5 0-1

[Event "American Continental 16th"]
[Site "San Salvador"]
[Date "2022.05.08"]
[Round "9"]
[White "Navarrete, Guillermo"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "B24"]
[WhiteElo "1729"]
[BlackElo "2013"]
[PlyCount "56"]
[EventDate "2022.05.02"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ESA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. g3 Nc6 4. Bg2 Nf6 5. d3 d5 6. Nh3 dxe4 7. Nxe4 Nxe4 8. Bxe4 Be7 9. 0-0 e5 10. Bg2 h5 11. f4 h4 12. Nf2 hxg3 13. hxg3 Qd6 14. fxe5 Nxe5 15. Bf4 g5 16. Bxe5 Qxe5 17. Qf3 Qf6 18. Qxf6 Bxf6 19. c3 Be6 20. Ne4 Be7 21. Nf6+ Bxf6 22. Rxf6 0-0-0 23. Rf3 Rh6 24. b3 Rdh8 25. Re3 Bh3 26. Bd5 f5 27. Rae1 Kd8 28. c4 Kd7 0-1

[Event "American Continental 16th"]
[Site "San Salvador"]
[Date "2022.05.07"]
[Round "8"]
[White "Markzon, Gregory"]
[Black "Ramirez Osio, Julio Adrian"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2013"]
[BlackElo "2143"]
[PlyCount "92"]
[EventDate "2022.05.02"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ESA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. g3 Bf5 4. Bg2 e6 5. 0-0 Be7 6. b3 0-0 7. Bb2 Ne4 8. Nbd2 Nd7 9. c4 Ndf6 10. Nh4 Nxd2 11. Nxf5 Nxf1 12. Nxe7+ Qxe7 13. Kxf1 dxc4 14. bxc4 c6 15. Qb3 Rfd8 16. e4 e5 17. d5 Nd7 18. Bh3 Nc5 19. Qe3 b6 20. Re1 Rac8 21. f4 cxd5 22. exd5 e4 23. Qd4 f5 24. Ba3 Qf7 25. Bb2 Rd7 26. Re3 Nd3 27. Rxd3 exd3 28. Qxd3 Rf8 29. Ba3 Qh5 30. Bg2 Rfd8 31. h4 Kh8 32. Kf2 Qf7 33. h5 h6 34. Qb3 Qxh5 35. Bb2 Qf7 36. Be5 Kh7 37. Qb1 g6 38. Bh3 Rc8 39. Qd3 Rdc7 40. Bxc7 Qxc7 41. Ke2 Qd6 42. Kf2 Re8 43. Bg2 Kg7 44. a4 a5 45. Qd4+ Kh7 46. g4 fxg4 0-1

[Event "American Continental 16th"]
[Site "San Salvador"]
[Date "2022.05.06"]
[Round "7"]
[White "Fernandez, Denis"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "B75"]
[WhiteElo "1605"]
[BlackElo "2013"]
[PlyCount "96"]
[EventDate "2022.05.02"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ESA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bc4 Bg7 7. f3 a6 8. Be3 b5 9. Bb3 Bb7 10. Qd2 h5 11. 0-0-0 Nbd7 12. Nde2 Rc8 13. Nf4 Nc5 14. Nfd5 0-0 15. Bh6 Nxb3+ 16. axb3 Nxd5 17. Bxg7 Kxg7 18. exd5 Rc5 19. Rhe1 a5 20. Qe2 b4 21. Na4 Rxd5 22. Rxd5 Bxd5 23. Qxe7 Qxe7 24. Rxe7 Kf6 25. Ra7 Ra8 26. Rc7 Rb8 27. Kd2 g5 28. Ra7 g4 29. fxg4 hxg4 30. g3 Rh8 31. Rxa5 Rxh2+ 32. Ke3 Be6 33. Rb5 Rxc2 34. Rxb4 Rg2 35. Kf4 Rf2+ 36. Ke3 Rf3+ 37. Ke2 Rxg3 38. Kf2 Rf3+ 39. Kg2 Rd3 40. Nc3 Rd2+ 41. Kg3 Rxb2 42. Ne4+ Ke5 43. Ng5 f5 44. Rb5+ d5 45. Nxe6 Kxe6 46. Kf4 Rf2+ 47. Kg3 Rf3+ 48. Kg2 Rc3 0-1

[Event "American Continental 16th"]
[Site "San Salvador"]
[Date "2022.05.06"]
[Round "6"]
[White "Markzon, Gregory"]
[Black "Bogantes Robleto, Karina"]
[Result "1-0"]
[ECO "D23"]
[WhiteElo "2013"]
[BlackElo "1707"]
[PlyCount "63"]
[EventDate "2022.05.02"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ESA"]
[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. Qb3 dxc4 5. Qxc4 Be6 6. Qc2 Bd5 7. Nbd2 Qa5 8. e3 Bxf3 9. gxf3 g6 10. Qc3 Qh5 11. Qb3 b6 12. Be2 Bg7 13. f4 Qf5 14. Nf1 0-0 15. Ng3 Qd5 16. Qxd5 cxd5 17. f5 Nbd7 18. Bd2 Rfc8 19. Ba6 Rc7 20. Ke2 Rc2 21. Rab1 b5 22. Rhc1 Rxc1 23. Rxc1 Rb8 24. Rc7 e6 25. fxe6 fxe6 26. Rxa7 Nf8 27. Bb4 h5 28. f3 Kh7 29. Bd6 Rd8 30. Bc7 Rd7 31. Bxb5 Re7 32. Bb6 1-0

[Event "American Continental 16th"]
[Site "San Salvador"]
[Date "2022.05.05"]
[Round "5"]
[White "Ibarra, Carlos Roberto"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1739"]
[BlackElo "2013"]
[PlyCount "69"]
[EventDate "2022.05.02"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ESA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. e3 g6 3. Bd3 Bg7 4. f4 d6 5. Nf3 0-0 6. 0-0 c5 7. c3 Nc6 8. dxc5 dxc5 9. e4 e5 10. Bc2 Qe7 11. fxe5 Nxe5 12. Nxe5 Qxe5 13. Bf4 Qe6 14. Na3 Bd7 15. Bb3 Qxe4 16. Bg5 Bc6 17. Qd2 Rad8 18. Qc2 Qxc2 19. Nxc2 Rd6 20. Rf2 h6 21. Bh4 g5 22. Bg3 Rd7 23. Rf5 Ne4 24. Ne3 b6 25. Nd5 Rfd8 26. Rd1 Nxg3 27. hxg3 Kf8 28. Kf2 b5 29. Ne7 Rxd1 30. Rxf7+ Ke8 31. Nxc6 R1d2+ 32. Ke1 Rxb2 33. Rxg7 Rdd2 34. Rg8+ Kd7 35. Rd8+ 1-0

[Event "American Continental 16th"]
[Site "San Salvador"]
[Date "2022.05.04"]
[Round "4"]
[White "Markzon, Gregory"]
[Black "Chavez, Ricardo Ernesto"]
[Result "0-1"]
[ECO "A67"]
[WhiteElo "2013"]
[BlackElo "2184"]
[PlyCount "82"]
[EventDate "2022.05.02"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ESA"]
[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. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ Nfd7 9. Nf3 a6 10. Bd3 b5 11. 0-0 0-0 12. a3 Re8 13. Kh1 Bb7 14. f5 Nf6 15. Ng5 Nbd7 16. fxg6 hxg6 17. Bc2 Ne5 18. Qe1 Nh7 19. Qg3 Qd7 20. h3 a5 21. Nxh7 Kxh7 22. Bg5 Ba6 23. Rf4 Kg8 24. Nd1 Qc7 25. Ne3 Bc8 26. Raf1 c4 27. Bf6 Bxf6 28. Rxf6 Qe7 29. Bd1 Kg7 30. Qf4 Ra7 31. Bg4 Bxg4 32. hxg4 Rh8+ 33. Kg1 b4 34. axb4 axb4 35. g5 b3 36. Qg3 c3 37. bxc3 b2 38. Qf2 Rb8 39. Qh4 b1Q 40. Rxb1 Rxb1+ 41. Kh2 Raa1 0-1

[Event "American Continental 16th"]
[Site "San Salvador"]
[Date "2022.05.03"]
[Round "2"]
[White "Markzon, Gregory"]
[Black "Noboa Silva, Kevin Omar"]
[Result "0-1"]
[ECO "E17"]
[WhiteElo "2013"]
[BlackElo "2323"]
[PlyCount "64"]
[EventDate "2022.05.02"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ESA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 5. 0-0 c5 6. dxc5 bxc5 7. c4 Be7 8. Nc3 0-0 9. Qc2 Nc6 10. Rd1 Qb6 11. Bf4 Rac8 12. Qb3 Qb4 13. Qxb4 cxb4 14. Nb5 d5 15. Bd6 Ba6 16. Bxe7 Nxe7 17. a4 dxc4 18. Nxa7 Rc5 19. Rd6 Bb7 20. Rb6 Bxf3 21. Bxf3 Ned5 22. Rc6 Rxc6 23. Nxc6 Rc8 24. Ne5 b3 25. a5 c3 26. Nd3 e5 27. Bxd5 Nxd5 28. a6 e4 29. a7 Nb6 30. Nc5 cxb2 31. Rd1 g5 32. Nxb3 Ra8 0-1

[Event "American Continental 16th"]
[Site "San Salvador"]
[Date "2022.05.03"]
[Round "3"]
[White "Vasquez Vasquez, Marielos"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "E65"]
[WhiteElo "1624"]
[BlackElo "2013"]
[PlyCount "60"]
[EventDate "2022.05.02"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ESA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 c5 7. Nc3 Nc6 8. e3 Bf5 9. a3 Rc8 10. dxc5 dxc5 11. Qe2 Bd3 12. Qd1 Bxf1 13. Qxf1 e6 14. e4 Nd4 15. Bf4 Nh5 16. e5 Nxf4 17. gxf4 Nxf3+ 18. Bxf3 Qh4 19. Qc1 Bh6 20. Ne2 b6 21. Qe3 g5 22. fxg5 Qxg5+ 23. Qxg5+ Bxg5 24. Be4 Rfd8 25. f4 Bh4 26. Nc3 f5 27. Bg2 Rd2 28. Rb1 Kf7 29. Kh1 Rcd8 30. Nb5 Rd1+ 0-1

[Event "American Continental 16th"]
[Site "San Salvador"]
[Date "2022.05.02"]
[Round "1"]
[White "Perez, Nayeli"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "B53"]
[WhiteElo "1162"]
[BlackElo "2013"]
[PlyCount "74"]
[EventDate "2022.05.02"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ESA"]
[SourceTitle "CBM 208 Extra"]
[Source "ChessBase"]
[SourceDate "2022.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. h3 Nc6 6. Qe3 Nf6 7. Be2 e6 8. c4 Be7 9. 0-0 0-0 10. Nc3 Re8 11. b3 Qc7 12. Bb2 b6 13. Rac1 Qb8 14. Rfd1 Ra7 15. Rc2 Rd7 16. Rcd2 b5 17. Nd4 Nxd4 18. Qxd4 b4 19. Nb1 e5 20. Qe3 Rc7 21. Kh1 Bb7 22. Bd3 h6 23. Re2 Qc8 24. Nd2 Nh5 25. g4 Nf4 26. Ree1 Qe6 27. Kh2 Bc8 28. f3 Bg5 29. Bb1 Nxh3 30. Qb6 Rb7 31. Qxa6 Nf2 32. Nf1 Nxd1 33. Rxd1 Rd7 34. Qb5 h5 35. Qd5 Qh6 36. Kg3 hxg4 37. fxg4 Rde7 0-1

[Event "Foxwoods op 14th"]
[Site "Ledyard"]
[Date "2022.04.14"]
[Round "2"]
[White "Markzon, Gregory"]
[Black "Harriott, Tyrell"]
[Result "0-1"]
[ECO "A90"]
[WhiteElo "2077"]
[BlackElo "1920"]
[PlyCount "128"]
[EventDate "2022.04.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nf3 c6 4. Nbd2 f5 5. g3 Bd6 6. Bg2 Nf6 7. 0-0 f4 8. Ne5 fxg3 9. hxg3 Bxe5 10. dxe5 Ng4 11. e4 Qg5 12. Nf3 Qh5 13. exd5 0-0 14. Re1 cxd5 15. cxd5 b6 16. Bf4 Ba6 17. dxe6 Nc6 18. Nh4 Rad8 19. Qa4 Ne7 20. Bf3 Bd3 21. Bg5 Rxf3 22. Nxf3 Rf8 23. Bxe7 Rxf3 24. Bh4 g5 25. Rac1 gxh4 26. Qd7 Bg6 27. Rc8+ Rf8 28. Rxf8+ Kxf8 29. Qd8+ Be8 30. Qxh4 Qxh4 31. gxh4 Ke7 32. Rc1 Kxe6 33. f4 a5 34. Rc7 h5 35. Kg2 Ne3+ 36. Kg3 Nf5+ 37. Kh3 Bd7 38. Rb7 b5 39. Rb6+ Kd5 40. Ra6 a4 41. Rf6 Be6 42. a3 Nd4+ 43. Kg3 Ke4 44. Kf2 Bf5 45. Rh6 Bg4 46. Rf6 Ne6 47. Kg3 Bf5 48. Rf7 Nxf4 49. Rb7 Ne2+ 50. Kf2 Nd4 51. Rb6 Kxe5 52. Ke3 Bd7 53. Rb7 Nf5+ 54. Kd3 Kd6 55. Rb8 Nxh4 56. Rh8 Ng6 57. Rh7 h4 58. Ke4 Ke6 59. Kd4 Kd6 60. Rh6 Bf5 61. Rh7 h3 62. Ke3 Ne5 63. Rh6+ Be6 64. Kd4 h2 0-1

[Event "Foxwoods op 14th"]
[Site "Ledyard"]
[Date "2022.04.13"]
[Round "1"]
[White "Jacobson, Brandon"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "E94"]
[WhiteElo "2524"]
[BlackElo "2077"]
[PlyCount "79"]
[EventDate "2022.04.13"]
[EventType "swiss"]
[EventRounds "9"]
[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 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 exd4 8. Nxd4 Re8 9. f3 c6 10. Kh1 Nbd7 11. Be3 d5 12. cxd5 Nxd5 13. Nxd5 cxd5 14. Nb5 Nb6 15. Rc1 Nc4 16. Bxc4 dxc4 17. Qxd8 Rxd8 18. Nc7 Be6 19. Nxa8 Rxa8 20. Rc2 b5 21. Rd1 b4 22. Bd4 Bh6 23. Bf6 a5 24. Rf2 Bg7 25. Bxg7 Kxg7 26. f4 f5 27. Re2 Rc8 28. Kg1 c3 29. bxc3 bxc3 30. e5 g5 31. g3 gxf4 32. gxf4 Rc4 33. Rc1 Bd5 34. Rec2 Rxf4 35. Rxc3 Re4 36. Rc5 Rg4+ 37. Kf2 Rg2+ 38. Ke3 Bxa2 39. Rc7+ Kg8 40. Ra7 0-1

[Event "Charlotte CCCSA op"]
[Site "Lichess.org INT"]
[Date "2021.01.10"]
[Round "6"]
[White "Dhulipalla, Bala Chandra Prasad"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2441"]
[BlackElo "2069"]
[PlyCount "59"]
[EventDate "2021.01.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. Be2 d6 6. 0-0 e6 7. h3 Nbd7 8. Bh2 Qe7 9. c4 b6 10. Nc3 a6 11. b4 e5 12. c5 bxc5 13. bxc5 exd4 14. cxd6 cxd6 15. Qxd4 Ne8 16. Qd2 Bb7 17. Rab1 Nc5 18. Nd5 Qd8 19. Bc4 Rc8 20. Qe2 Nf6 21. Nxf6+ Qxf6 22. Rb6 Rc6 23. Rfb1 Rxb6 24. Rxb6 Rd8 25. Ne5 dxe5 26. Rxf6 Bxf6 27. Bg3 e4 28. Qc2 Nd3 29. Bxf7+ Kf8 30. Qc7 1-0

[Event "Charlotte CCCSA op"]
[Site "Lichess.org INT"]
[Date "2021.01.09"]
[Round "1"]
[White "Markzon, Gregory"]
[Black "Boruchovsky, Avital"]
[Result "1/2-1/2"]
[ECO "E49"]
[WhiteElo "2069"]
[BlackElo "2541"]
[PlyCount "132"]
[EventDate "2021.01.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 b6 7. cxd5 exd5 8. e3 0-0 9. Bd3 c5 10. Ne2 Ba6 11. Bxa6 Nxa6 12. 0-0 Re8 13. Ng3 Nc7 14. Qd3 h5 15. Bb2 c4 16. Qd2 Qd7 17. Rae1 h4 18. Nh1 Nb5 19. Nf2 Nd6 20. Qc2 Qc6 21. a4 g6 22. Ba3 Nf5 23. e4 Ng7 24. Bc1 h3 25. g3 dxe4 26. fxe4 Qb7 27. Bg5 Nh7 28. Nxh3 Qd7 29. Kg2 f5 30. Bf4 Rxe4 31. Rxe4 Qc6 32. Kg1 fxe4 33. Be5 Nf5 34. Re1 e3 35. Qg2 Qxg2+ 36. Kxg2 g5 37. g4 Ne7 38. Rxe3 Nd5 39. Rg3 a6 40. Nf2 b5 41. axb5 axb5 42. Ne4 Ra2+ 43. Kf3 b4 44. cxb4 c3 45. Rg1 c2 46. Bd6 Ra3+ 47. Kf2 Rd3 48. Rc1 Rxd4 49. Ng3 Rc4 50. Ke2 Nhf6 51. Kd3 Rxg4 52. Rxc2 Nxb4+ 53. Bxb4 Rxb4 54. Rc5 g4 55. Nh5 Nxh5 56. Rxh5 Kg7 57. Ke3 Kg6 58. Rc5 Rb2 59. Kf4 Rxh2 60. Kxg4 Rg2+ 61. Kh3 Ra2 62. Kg3 Ra3+ 63. Kg4 Ra4+ 64. Kg3 Ra3+ 65. Kg4 Ra4+ 66. Kg3 Ra3+ 1/2-1/2

[Event "Charlotte CCCSA op"]
[Site "Lichess.org INT"]
[Date "2021.01.09"]
[Round "3"]
[White "Markzon, Gregory"]
[Black "Rempe, Jonas"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "2069"]
[BlackElo "1957"]
[PlyCount "115"]
[EventDate "2021.01.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Be3 e5 7. d5 Na6 8. g4 c6 9. g5 Ne8 10. h4 f5 11. gxf6 Nxf6 12. Qd2 cxd5 13. cxd5 Nc5 14. Bxc5 dxc5 15. 0-0-0 a6 16. Qe3 Qd6 17. Kb1 b5 18. Rc1 Bd7 19. Ka1 Rfc8 20. h5 b4 21. Nb1 a5 22. hxg6 hxg6 23. Nd2 a4 24. Nc4 Qf8 25. Nb6 a3 26. Nxa8 Rxa8 27. b3 Nxe4 28. Qxe4 Bf5 29. d6 Bxe4 30. Bc4+ Qf7 31. Bxf7+ Kxf7 32. Rh2 Bd3 33. Rh7 e4+ 34. Rxg7+ Kxg7 35. Rxc5 Rf8 36. Rc1 Rxf2 37. d7 Rf8 38. Nf3 Rd8 39. Ne5 e3 40. Nxd3 Rxd7 41. Nxb4 e2 42. Nc2 Rd1 43. Rb1 g5 44. b4 g4 45. b5 g3 46. Ne1 Rd7 47. b6 Rb7 48. Rb3 Kf6 49. Kb1 Kf5 50. Kc2 Kf4 51. Kd2 Ke4 52. Kxe2 Kd4 53. Kf3 Kc5 54. Kxg3 Rxb6 55. Rxb6 Kxb6 56. Nc2 Kb5 57. Nxa3+ Ka4 58. Nb1 1-0

[Event "Charlotte CCCSA op"]
[Site "Lichess.org INT"]
[Date "2021.01.09"]
[Round "2"]
[White "Pang, Ashley"]
[Black "Markzon, Gregory"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "1725"]
[BlackElo "2069"]
[PlyCount "108"]
[EventDate "2021.01.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. 0-0 Nf6 6. Re1 Nc6 7. c3 e6 8. d4 cxd4 9. cxd4 d5 10. e5 Ne4 11. Nbd2 Nxd2 12. Bxd2 Be7 13. Rc1 0-0 14. Qb3 Bd8 15. Rc2 Bb6 16. Qd3 h6 17. Rec1 f6 18. Qg6 fxe5 19. dxe5 Qf7 20. Qg3 Qh5 21. a3 Ne7 22. Bb4 Nf5 23. Qf4 Nd4 24. Bxf8 Rxf8 25. Qg3 Nxf3+ 26. gxf3 Rxf3 27. Qg2 Rf5 28. Kf1 Rg5 29. Qh1 Qh3+ 30. Ke1 Rxe5+ 31. Re2 Qf5 32. Qf1 Bd4 33. Rc8+ Kf7 34. Rxe5 Bxe5 35. Qb5 Qb1+ 36. Ke2 Qxb2+ 37. Qxb2 Bxb2 38. Rc7+ Kf6 39. Rxb7 Bxa3 40. Rxa7 Bd6 41. h3 Kf5 42. Rxg7 Bf4 43. Rf7+ Ke5 44. Kd3 Bg5 45. Rf8 Kd6 46. Rf7 e5 47. f3 Ke6 48. Rf8 Ke7 49. Rf5 Bf4 50. h4 Ke6 51. Rf8 Ke7 52. Rf5 Ke6 53. Rf8 Ke7 54. Rf5 Ke6 1/2-1/2

[Event "PNWCC Online Masters Artist Point"]
[Site "Chess.com INT"]
[Date "2020.09.07"]
[Round "9"]
[White "Eswaran, Ashritha"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2244"]
[BlackElo "2069"]
[PlyCount "45"]
[EventDate "2020.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 g6 7. f3 Bg7 8. Qd2 0-0 9. 0-0-0 Nc6 10. h4 h5 11. Kb1 Nxd4 12. Bxd4 Be6 13. g4 Rc8 14. gxh5 Nxh5 15. Bxg7 Kxg7 16. f4 Bg4 17. Be2 Bxe2 18. Nxe2 Rc4 19. Nd4 e6 20. e5 d5 21. Rhg1 Qxh4 22. f5 Qf4 23. Rxg6+ 1-0

[Event "PNWCC Online Masters Artist Point"]
[Site "Chess.com INT"]
[Date "2020.09.07"]
[Round "7"]
[White "Ji, Yunze Owen"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "1553"]
[BlackElo "2069"]
[PlyCount "62"]
[EventDate "2020.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. Nc3 cxd4 5. Nxd4 Nc6 6. a3 a6 7. e4 Qc7 8. Be3 Be7 9. Be2 0-0 10. 0-0 d6 11. Rc1 Qb8 12. f3 Bd7 13. a4 Rc8 14. Rf2 Ne5 15. b3 Ng6 16. g3 Bd8 17. b4 Bc7 18. Bf1 h5 19. Bg5 Bd8 20. Be2 Ng4 21. Bd2 Nxf2 22. Kxf2 h4 23. Be3 Bf6 24. g4 d5 25. Kg2 Nf4+ 26. Kg1 dxc4 27. Bf1 b5 28. Nde2 Nd3 29. Rb1 Bc6 30. Nd4 Qd6 31. Nxc6 Bxc3 0-1

[Event "PNWCC Online Masters Artist Point"]
[Site "Chess.com INT"]
[Date "2020.09.07"]
[Round "8"]
[White "Markzon, Gregory"]
[Black "Hevia Alejano, Carlos Antonio"]
[Result "1-0"]
[ECO "E49"]
[WhiteElo "2069"]
[BlackElo "2467"]
[PlyCount "97"]
[EventDate "2020.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 c5 8. cxd5 exd5 9. Ne2 b6 10. 0-0 Ba6 11. Ng3 Bxd3 12. Qxd3 Nc6 13. f3 Re8 14. Bb2 c4 15. Qd2 b5 16. Rae1 Re6 17. Qf2 Nd7 18. e4 Nb6 19. e5 Ne7 20. Bc1 Qf8 21. Nh5 Qc8 22. Kh1 Na4 23. Qc2 Rb6 24. g4 Kh8 25. Rg1 a5 26. f4 Rh6 27. Nxg7 Kxg7 28. f5 Rh3 29. f6+ Kg8 30. fxe7 Rxc3 31. Qd2 Qe6 32. Rgf1 Qxe7 33. Rf6 Kh8 34. Qf4 Rg8 35. Rf1 b4 36. Rxf7 Qe6 37. Rf8 Rxc1 38. Rxc1 Rxf8 39. Qxf8+ Qg8 40. Qf6+ Qg7 41. Qd8+ Qg8 42. Qxa5 Qf8 43. Qxd5 Nc3 44. Qg2 b3 45. Rf1 Qd8 46. e6 Nd5 47. Qe4 Kg8 48. Rf7 Nf6 49. e7 1-0

[Event "PNWCC Online Masters Artist Point"]
[Site "Chess.com INT"]
[Date "2020.09.06"]
[Round "4"]
[White "Markzon, Gregory"]
[Black "Metpally, Jason"]
[Result "0-1"]
[ECO "E49"]
[WhiteElo "2069"]
[BlackElo "2204"]
[PlyCount "46"]
[EventDate "2020.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 exd5 8. e3 0-0 9. Bd3 cxd4 10. cxd4 Nc6 11. Ne2 Bd7 12. 0-0 Rc8 13. e4 dxe4 14. fxe4 Bg4 15. d5 Ne5 16. Rb1 Qe7 17. h3 Nxd3 18. Qxd3 Bxe2 19. Qxe2 Nxd5 20. Qg4 Nf6 21. Qh4 Qxe4 22. Qxe4 Nxe4 23. Rxb7 Ng3 0-1

[Event "PNWCC Online Masters Artist Point"]
[Site "Chess.com INT"]
[Date "2020.09.06"]
[Round "6"]
[White "Markzon, Gregory"]
[Black "Min, Ryan"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "2069"]
[BlackElo "1659"]
[PlyCount "69"]
[EventDate "2020.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Be3 e5 7. d5 a5 8. g4 Na6 9. g5 Nd7 10. h4 Nac5 11. Qd2 Nb6 12. 0-0-0 Bd7 13. Kb1 Nba4 14. f3 Nxc3+ 15. Qxc3 a4 16. Nh3 b6 17. Nf2 Qc8 18. Nd3 Qb7 19. h5 Qa6 20. Qe1 Rfb8 21. hxg6 hxg6 22. Rh2 Nxd3 23. Bxd3 b5 24. c5 Qa5 25. Bd2 Qa7 26. cxd6 cxd6 27. Bb4 Qb6 28. Qe2 Rc8 29. Rdh1 a3 30. bxa3 Kf8 31. Rh7 Rc5 32. Rxg7 Kxg7 33. Qh2 Kf8 34. Qh8+ Ke7 35. Qf6+ 1-0

[Event "PNWCC Online Masters Artist Point"]
[Site "Chess.com INT"]
[Date "2020.09.06"]
[Round "5"]
[White "Sharma, Vishruth"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "1766"]
[BlackElo "2069"]
[PlyCount "95"]
[EventDate "2020.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 g6 7. Be3 Bg7 8. Qd2 0-0 9. 0-0-0 Nc6 10. h4 h5 11. Kb1 Nxd4 12. Bxd4 Be6 13. Be2 b5 14. Rdg1 Qa5 15. b3 Rfc8 16. g4 hxg4 17. h5 Nxe4 18. fxe4 Bxd4 19. Qxd4 Qxc3 20. Qd1 g3 21. Bd3 Qe5 22. hxg6 fxg6 23. Qe1 Kf7 24. Rxg3 Rg8 25. Qe3 g5 26. Rh5 Qc5 27. Qf3+ Ke8 28. e5 Rc8 29. Rhxg5 Rf8 30. Bg6+ Kd7 31. Qe2 Rf2 32. Qe1 d5 33. Bd3 Rcf8 34. Qa5 Rc8 35. Rg2 Rxg2 36. Rxg2 Rc6 37. a4 bxa4 38. Qxa4 Qb6 39. Rg7 Kd8 40. Rh7 a5 41. Rh8+ Kc7 42. Bb5 Rc5 43. Bd3 Qc6 44. Qh4 Rc3 45. Qxe7+ Qd7 46. Qf6 Rxd3 47. cxd3 Qb5 48. Qd8+ 1-0

[Event "PNWCC Online Masters Artist Point"]
[Site "Chess.com INT"]
[Date "2020.09.05"]
[Round "1"]
[White "Lintchevski, Daniil"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2559"]
[BlackElo "2069"]
[PlyCount "65"]
[EventDate "2020.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 g6 7. g4 Bg7 8. Bg2 0-0 9. 0-0 Bd7 10. Be3 Nc6 11. Nde2 Rc8 12. Rc1 h5 13. g5 Nh7 14. f4 Na5 15. Bf2 Nc4 16. b3 Na3 17. Nd5 Bc6 18. Nb6 Rb8 19. c4 e5 20. h4 exf4 21. Nxf4 Re8 22. Qd3 Be5 23. Nfd5 Bxd5 24. exd5 a5 25. Rce1 Nf8 26. Bh3 Qc7 27. Kg2 f5 28. gxf6 Bxf6 29. Be6+ Kh7 30. Bg3 Bg7 31. Rf7 Qxb6 32. Qc3 Nxe6 33. Rxe6 1-0

[Event "PNWCC Online Masters Artist Point"]
[Site "Chess.com INT"]
[Date "2020.09.05"]
[Round "2"]
[White "Markzon, Gregory"]
[Black "Shi, Ted"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "2069"]
[PlyCount "63"]
[EventDate "2020.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Be3 e5 7. d5 Nbd7 8. g4 Ne8 9. h4 Nc5 10. Qd2 a5 11. 0-0-0 Na6 12. h5 c6 13. dxc6 bxc6 14. c5 Be6 15. cxd6 Qd7 16. Na4 c5 17. Nb6 Qb7 18. Nxa8 Qxa8 19. f3 Nf6 20. hxg6 fxg6 21. Nh3 Nb4 22. a3 Nc6 23. Ng5 Bb3 24. Qc3 Bxd1 25. Bc4+ Kh8 26. Rxd1 Nd4 27. Kb1 a4 28. Ne6 Re8 29. Nc7 Qc8 30. Ba6 Qd7 31. Nxe8 Qxe8 32. Qxc5 1-0

[Event "PNWCC Online Masters Artist Point"]
[Site "Chess.com INT"]
[Date "2020.09.05"]
[Round "3"]
[White "Wheeler, Cameron"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2398"]
[BlackElo "2069"]
[PlyCount "67"]
[EventDate "2020.09.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 0-0 5. h3 d6 6. g3 Nc6 7. Bg2 e5 8. d5 Ne7 9. e4 Ne8 10. 0-0 h6 11. Ne1 f5 12. Nd3 Nf6 13. Kh2 c5 14. f4 Nxe4 15. Nxe4 fxe4 16. Bxe4 Bf5 17. Bxf5 Nxf5 18. fxe5 dxe5 19. Nxc5 Nd4 20. Be3 Qb6 21. Bxd4 exd4 22. Nd3 Rfe8 23. c5 Qb5 24. Rf3 Re4 25. Qb3 Re2+ 26. Kg1 Qe8 27. d6+ Kh7 28. Qxb7 Rb8 29. Qd5 Rd2 30. Re1 Qb5 31. Re7 Rd1+ 32. Kg2 Rxd3 33. Rxg7+ Kh8 34. Rh7+ 1-0

[Event "World op 48th"]
[Site "ICC INT"]
[Date "2020.08.09"]
[Round "7"]
[White "Markzon, Gregory"]
[Black "Khattar, Tanmay"]
[Result "0-1"]
[ECO "E49"]
[WhiteElo "2069"]
[BlackElo "2027"]
[PlyCount "86"]
[EventDate "2020.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. a3 dxc4 7. Bxc4 Bxc3+ 8. bxc3 c5 9. Ne2 Qc7 10. Ba2 b6 11. Bb2 Bb7 12. 0-0 Nbd7 13. f3 e5 14. e4 Ba6 15. Re1 Rfd8 16. Ng3 cxd4 17. cxd4 exd4 18. Nf5 Nc5 19. e5 Ne8 20. Rc1 Qd7 21. Rxc5 Qxf5 22. Rd5 Rxd5 23. Bxd5 Rd8 24. Qxd4 Qg5 25. f4 Qe7 26. Rd1 Rc8 27. Bb3 Qc5 28. e6 Bc4 29. exf7+ Bxf7 30. Qxc5 bxc5 31. Bxf7+ Kxf7 32. Rd7+ Ke6 33. Rxa7 c4 34. Bc3 Kf5 35. g3 Ke4 36. Rd7 Nf6 37. Rxg7 Nd5 38. Be5 Kf3 39. Rb7 Ne3 40. Rb1 c3 41. Rc1 c2 42. h4 Rd8 43. Bb2 Kxg3 0-1

[Event "World op 48th"]
[Site "ICC INT"]
[Date "2020.08.09"]
[Round "9"]
[White "Markzon, Gregory"]
[Black "Singh, Hersh"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2069"]
[BlackElo "1906"]
[PlyCount "141"]
[EventDate "2020.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 Nbd7 8. Qc2 Nf8 9. Nge2 Ne6 10. Bh4 g6 11. 0-0 0-0 12. f3 b6 13. Rad1 Bb7 14. Qd2 Rc8 15. Bb1 Nh5 16. Bxe7 Qxe7 17. e4 Rfd8 18. e5 c5 19. f4 f5 20. exf6 Nxf6 21. f5 Nxd4 22. Qg5 Nxe2+ 23. Nxe2 Rf8 24. fxg6 Qxe2 25. h4 Qg4 26. Bf5 Qxg5 27. hxg5 Rce8 28. gxf6 hxg6 29. Bxg6 Re6 30. f7+ Kg7 31. Bh5 d4 32. Rf5 Kh6 33. Bg4 Rg6 34. Bf3 Bc8 35. Rf4 Kg5 36. g3 Rf6 37. Bd5 Be6 38. Bxe6 Rxe6 39. Rd2 Re7 40. Rdf2 Rd7 41. Kf1 Rd5 42. Ke2 Re5+ 43. Kd2 Re3 44. b4 Re5 45. bxc5 bxc5 46. Kd3 Re3+ 47. Kc2 Kg6 48. Rg4+ Kh5 49. Rg8 d3+ 50. Kd2 Re2+ 51. Rxe2 dxe2 52. Rxf8 Kg6 53. Kxe2 Kg7 54. Ra8 Kxf7 55. Rxa7+ Ke6 56. Kd3 Kd5 57. Kc3 c4 58. g4 Ke4 59. g5 Kf5 60. Kxc4 Kg6 61. Rb7 Kxg5 62. Rb1 Kf5 63. a4 Ke6 64. a5 Kd6 65. a6 Ke5 66. a7 Kf4 67. a8Q Ke3 68. Qf8 Ke2 69. Rb2+ Ke3 70. Qf2+ Ke4 71. Re2# 1-0

[Event "World op 48th"]
[Site "ICC INT"]
[Date "2020.08.09"]
[Round "8"]
[White "Seper, Colin J"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "B76"]
[BlackElo "2069"]
[PlyCount "60"]
[EventDate "2020.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 g6 7. f3 Bg7 8. Qd2 0-0 9. g4 Nc6 10. 0-0-0 Bd7 11. h4 h5 12. g5 Nh7 13. Bh3 Bxh3 14. Rxh3 Ne5 15. Qe2 Rc8 16. Nb3 Nc4 17. Bd4 e5 18. Be3 Nxb2 19. Kxb2 Rxc3 20. Kxc3 Qc8+ 21. Kb2 Qxh3 22. Na5 Qd7 23. Nc4 Qb5+ 24. Ka1 Rc8 25. Rxd6 Rxc4 26. Rb6 Qa4 27. c3 Rc7 28. Qd3 Rd7 29. Rd6 Rxd6 30. Qxd6 Qc6 0-1

[Event "World op 48th"]
[Site "ICC INT"]
[Date "2020.08.08"]
[Round "4"]
[White "Kolay, Alex"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2208"]
[BlackElo "2069"]
[PlyCount "103"]
[EventDate "2020.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. h3 e5 7. d5 c6 8. Be3 a6 9. Nd2 c5 10. g4 b5 11. cxb5 axb5 12. Bxb5 Ba6 13. Bxa6 Nxa6 14. Nc4 Rb8 15. a3 Ne8 16. h4 f5 17. gxf5 gxf5 18. exf5 e4 19. Nxe4 Qe7 20. Ng5 Nac7 21. Qd3 Nf6 22. 0-0-0 Nfxd5 23. Nxh7 Nxe3 24. fxe3 d5 25. f6 Rxf6 26. Nxf6+ Qxf6 27. Rdf1 dxc4 28. Qxc4+ Qe6 29. Qxe6+ Nxe6 30. Rhg1 Kh8 31. Rg6 Bxb2+ 32. Kc2 Nf8 33. Rxf8+ Rxf8 34. Kxb2 Re8 35. Rc6 Rxe3 36. Rxc5 Kg7 37. h5 Kf6 38. a4 Ke6 39. a5 Kd6 40. Rg5 Kc6 41. Kc2 Kb7 42. Kd2 Rh3 43. Ke2 Ka7 44. Kf2 Kb7 45. Kg2 Rh4 46. Kg3 Rh1 47. Kg4 Ka6 48. Rf5 Rg1+ 49. Kh4 Rg2 50. h6 Rg1 51. Kh5 Rg2 52. Rg5 1-0

[Event "World op 48th"]
[Site "ICC INT"]
[Date "2020.08.08"]
[Round "5"]
[White "Markzon, Gregory"]
[Black "Kondakov, Adrian"]
[Result "0-1"]
[ECO "E93"]
[WhiteElo "2069"]
[BlackElo "1986"]
[PlyCount "72"]
[EventDate "2020.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Be3 e5 7. d5 Nbd7 8. Nf3 Ng4 9. Bg5 f6 10. Bh4 Nh6 11. Nd2 g5 12. Bg3 f5 13. exf5 Nf6 14. 0-0 Nxf5 15. Nde4 Nxe4 16. Nxe4 Nd4 17. Bg4 Bf5 18. Bxf5 Rxf5 19. f3 Qd7 20. Bf2 Raf8 21. Be3 h6 22. Qd3 R5f7 23. Rad1 g4 24. Bxd4 exd4 25. fxg4 Qxg4 26. Rxf7 Rxf7 27. h3 Qh4 28. Nd2 Qf2+ 29. Kh1 Re7 30. Rf1 Qe2 31. Qf5 Re5 32. Qf7+ Kh8 33. Rf2 Qe1+ 34. Kh2 Re7 35. Qf5 Re8 36. Qf3 Re3 0-1

[Event "World op 48th"]
[Site "ICC INT"]
[Date "2020.08.08"]
[Round "6"]
[White "Whipple, Lee"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "B66"]
[WhiteElo "1737"]
[BlackElo "2069"]
[PlyCount "84"]
[EventDate "2020.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qd2 Be7 8. 0-0-0 Qc7 9. f4 Nc6 10. Kb1 Bd7 11. h3 0-0-0 12. f5 Ne5 13. Be3 Kb8 14. Qf2 Rc8 15. Bd3 Nc4 16. Bxc4 Qxc4 17. g4 e5 18. Nb3 Nxe4 19. Nxe4 Qxe4 20. Rhe1 Qa4 21. Rd5 Bb5 22. Rc1 Bc4 23. Ra5 Qc6 24. Qg3 f6 25. Nd2 Bf7 26. c4 d5 27. c5 Bd8 28. Ra3 Bc7 29. Nb3 d4 30. Bd2 Bxb3 31. Qxb3 e4 32. Rc4 e3 33. Be1 Be5 34. Ra5 Qh1 35. Rc1 Qe4+ 36. Ka1 d3 37. Rd1 d2 38. Bxd2 exd2 39. Rxd2 Rhd8 40. Rd1 Rxd1+ 41. Qxd1 Qb4 42. Ra3 Qxb2# 0-1

[Event "World op 48th"]
[Site "ICC INT"]
[Date "2020.08.07"]
[Round "3"]
[White "Markzon, Gregory"]
[Black "Chen, Justin"]
[Result "0-1"]
[ECO "E57"]
[WhiteElo "2069"]
[BlackElo "2247"]
[PlyCount "132"]
[EventDate "2020.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 Nxd5 5. Nf3 c5 6. e3 cxd4 7. exd4 Bb4 8. Bd2 0-0 9. Bd3 Nc6 10. 0-0 Be7 11. a3 Nf6 12. Bf4 b6 13. Re1 Bb7 14. Bc2 Re8 15. Qd3 g6 16. Bg5 Rc8 17. Rad1 Nd5 18. Bxe7 Ncxe7 19. Ba4 Nxc3 20. bxc3 Bc6 21. Bb3 Bxf3 22. Qxf3 Qd6 23. a4 Qc6 24. Re3 Qxf3 25. Rxf3 Red8 26. Kf1 Rc7 27. Ke2 Kg7 28. Kd2 Nf5 29. g4 Nd6 30. Kc2 Ne4 31. Kb2 Rdc8 32. Rdd3 h6 33. Rde3 Nf6 34. h3 Rd8 35. Re5 Nd7 36. Ree3 Nb8 37. Rd3 Nc6 38. Rde3 Rd6 39. Re4 Na5 40. Re5 Nc6 41. Re4 Rcd7 42. Ree3 g5 43. Re4 a6 44. Kc2 b5 45. axb5 axb5 46. Rd3 b4 47. Ba4 Rc7 48. c4 b3+ 49. Bxb3 Nb4+ 50. Kc3 Nxd3 51. Kxd3 Kf6 52. Kc3 Ra6 53. c5 Rb7 54. Re3 Ra1 55. d5 Rc1+ 56. Kd2 Rxc5 57. dxe6 fxe6 58. Rxe6+ Kg7 59. Re3 Rcb5 60. Bc2 Rb2 61. Rc3 Re7 62. Rc6 Ra2 63. Kd1 Ra1+ 64. Kd2 Rf1 65. Bf5 Rxf2+ 66. Kd1 Ra7 0-1

[Event "World op 48th"]
[Site "ICC INT"]
[Date "2020.08.07"]
[Round "1"]
[White "Markzon, Gregory"]
[Black "Santos Latasa, Jaime"]
[Result "0-1"]
[ECO "E53"]
[WhiteElo "2069"]
[BlackElo "2575"]
[PlyCount "82"]
[EventDate "2020.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 dxc4 8. Bxc4 c5 9. Nf3 Qc7 10. Ba2 b5 11. 0-0 Bb7 12. Ne5 Nc6 13. f4 Ne7 14. Bb1 Rac8 15. Qe1 Be4 16. Ng4 Ned5 17. Nxf6+ Nxf6 18. Bd2 Qc6 19. Bxe4 Nxe4 20. f5 exf5 21. Rxf5 Rfe8 22. Rc1 Qe6 23. Re5 Qa2 24. Rxe8+ Rxe8 25. Rd1 Qxa3 26. c4 bxc4 27. Bc1 Qb4 28. Qh4 Qb3 29. Rf1 c3 30. dxc5 Nxc5 31. Qd4 Rc8 32. h3 h6 33. e4 c2 34. e5 Nd3 35. e6 fxe6 36. Qd7 Rf8 37. Rxf8+ Kxf8 38. Qc8+ Kf7 39. Be3 c1Q+ 40. Bxc1 Qd1+ 41. Kh2 Nxc1 0-1

[Event "World op 48th"]
[Site "ICC INT"]
[Date "2020.08.07"]
[Round "2"]
[White "Xu, Andrew"]
[Black "Markzon, Gregory"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "1524"]
[BlackElo "2069"]
[PlyCount "42"]
[EventDate "2020.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 g6 6. Nc3 Bg7 7. 0-0 Nc6 8. Qe2 Nf6 9. Rd1 Nh5 10. d3 0-0 11. Be3 Nd4 12. Bxd4 cxd4 13. Nb1 Nf4 14. Qd2 Qg4 15. Ne1 Bh6 16. f3 Qh4 17. Qf2 Nh3+ 18. gxh3 Be3 19. Qxe3 dxe3 20. Nc3 Qf2+ 21. Kh1 Qf1# 0-1

[Event "PNWCC Online Masters WOO"]
[Site "Chess.com INT"]
[Date "2020.07.06"]
[Round "8"]
[White "Markzon, Gregory"]
[Black "Jiang, Leo1"]
[Result "1-0"]
[ECO "E47"]
[WhiteElo "2069"]
[BlackElo "1592"]
[PlyCount "47"]
[EventDate "2020.07.04"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 0-0 7. cxd5 exd5 8. Bd3 b6 9. Ne2 Bb7 10. 0-0 Nbd7 11. f3 c5 12. Ng3 Re8 13. Ra2 Nf8 14. Re1 Ne6 15. Rf2 Qd7 16. e4 dxe4 17. fxe4 Nc7 18. e5 Nfd5 19. Nf5 cxd4 20. Qg4 Ne6 21. Nh6+ Kh8 22. Nxf7+ Kg8 23. Qh5 g6 24. Bxg6 1-0

[Event "PNWCC Online Masters WOO"]
[Site "Chess.com INT"]
[Date "2020.07.06"]
[Round "7"]
[White "Peljto, Mirza"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "A65"]
[BlackElo "2069"]
[PlyCount "109"]
[EventDate "2020.07.04"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 g6 3. f3 c5 4. d5 Bg7 5. Nc3 d6 6. e4 0-0 7. Nge2 e6 8. Ng3 exd5 9. cxd5 Na6 10. Be2 Nc7 11. 0-0 Bd7 12. a4 a6 13. a5 Nb5 14. Be3 Ne8 15. Qd2 Nd4 16. Ra3 Nc7 17. Bd1 Ncb5 18. Ra2 h5 19. Na4 h4 20. Ne2 Nxe2+ 21. Bxe2 Nd4 22. Bc4 h3 23. Nb6 hxg2 24. Qxg2 Rb8 25. Bg5 Qc7 26. h4 Bb5 27. b3 Rbe8 28. h5 f6 29. Be3 gxh5 30. Bxd4 cxd4 31. Bxb5 axb5 32. Rc2 Qe7 33. Rfc1 Qe5 34. Nd7 Qg5 35. Nxf8 Rxf8 36. Rc7 Rf7 37. Qxg5 fxg5 38. Rxf7 Kxf7 39. Rc7+ Kg6 40. Rxb7 d3 41. Rxg7+ Kxg7 42. Kf2 h4 43. a6 h3 44. a7 d2 45. a8Q d1Q 46. Qb7+ Kf6 47. Qh7 Qd2+ 48. Kf1 Qg2+ 49. Ke1 Qxf3 50. Qh6+ Ke5 51. Qe6+ Kd4 52. Qxd6 Kd3 53. Qh2 Qg2 54. Qxg2 hxg2 55. Kf2 1-0

[Event "PNWCC Online Masters WOO"]
[Site "Chess.com INT"]
[Date "2020.07.06"]
[Round "9"]
[White "Sivakumar, Shaaketh"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1870"]
[BlackElo "2069"]
[PlyCount "75"]
[EventDate "2020.07.04"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nc3 d5 4. e3 Bg7 5. h4 h5 6. Be2 Nbd7 7. Nb5 0-0 8. Bxc7 Qe8 9. Bf4 Qd8 10. Nf3 a6 11. Nc3 b5 12. 0-0 b4 13. Nb1 Bb7 14. c3 a5 15. a3 Qb6 16. c4 dxc4 17. Bxc4 Rac8 18. Nbd2 Rfd8 19. Qe2 e6 20. Bd3 Nd5 21. Bg3 Bf8 22. Nc4 Qa7 23. Nd6 Rc6 24. Nxb7 Qxb7 25. Bb5 Rb6 26. a4 N7f6 27. Ne5 Ne4 28. Nc4 Nxg3 29. fxg3 Bh6 30. Rf3 Rxb5 31. axb5 Qxb5 32. Rxa5 Qb7 33. Ne5 Qc7 34. Rc5 Qb6 35. Nxf7 Bxe3+ 36. Kh2 Rf8 37. Rxd5 exd5 38. Qxe3 1-0

[Event "PNWCC Online Masters WOO"]
[Site "Chess.com INT"]
[Date "2020.07.05"]
[Round "6.40"]
[White "Markzon, Gregory"]
[Black "Feng, Eric"]
[Result "0-1"]
[ECO "E00"]
[WhiteElo "2069"]
[BlackElo "1898"]
[PlyCount "60"]
[EventDate "2020.07.04"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Nc6 4. Bg2 Bb4+ 5. Nc3 b6 6. Nf3 Bb7 7. 0-0 0-0 8. Qc2 Bxc3 9. Qxc3 d5 10. Rd1 Ne4 11. Qc2 Nb4 12. Qb3 a5 13. a3 dxc4 14. Qxc4 Bd5 15. Bg5 Nxg5 16. Qc3 Nxf3+ 17. Bxf3 Bxf3 18. Qxf3 Nd5 19. e4 Nf6 20. g4 h6 21. h4 Nd7 22. Qg3 f5 23. gxf5 exf5 24. e5 Qe7 25. Re1 Rad8 26. Rac1 f4 27. Qg4 c5 28. e6 Nf6 29. Qxf4 Rxd4 30. Qe5 Ng4 0-1

[Event "PNWCC Online Masters WOO"]
[Site "Chess.com INT"]
[Date "2020.07.05"]
[Round "4.29"]
[White "Markzon, Gregory"]
[Black "Zhao, Ian"]
[Result "1/2-1/2"]
[ECO "E49"]
[WhiteElo "2069"]
[BlackElo "2380"]
[PlyCount "77"]
[EventDate "2020.07.04"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 0-0 7. cxd5 exd5 8. Bd3 Re8 9. Ne2 c5 10. 0-0 Nc6 11. Ng3 b6 12. f3 Bb7 13. Ra2 Qc7 14. Re2 Rad8 15. Bb1 Ba6 16. Bd3 Bxd3 17. Qxd3 Qd7 18. Bb2 b5 19. Rd1 c4 20. Qc2 a5 21. Qd2 Rb8 22. e4 h6 23. e5 Nh7 24. f4 f5 25. Qc2 g6 26. Nf1 Nf8 27. Ne3 Ne6 28. Rf2 b4 29. g4 Ng7 30. Rg2 Kh7 31. gxf5 Nxf5 32. Ng4 b3 33. Nf6+ Kg7 34. Qe2 Qe6 35. Nxe8+ Rxe8 36. a4 Kh7 37. Kh1 Rg8 38. Ba3 Nce7 39. Rdg1 1/2-1/2

[Event "PNWCC Online Masters WOO"]
[Site "Chess.com INT"]
[Date "2020.07.05"]
[Round "5.28"]
[White "Sarkar, Justin"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "B05"]
[WhiteElo "2380"]
[BlackElo "2069"]
[PlyCount "55"]
[EventDate "2020.07.04"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. h3 Bh5 7. c4 Nb6 8. exd6 cxd6 9. Nc3 Nc6 10. d5 Bxf3 11. Bxf3 Ne5 12. dxe6 fxe6 13. Bxb7 Rb8 14. Ba6 Be7 15. Bb5+ Nbd7 16. 0-0 0-0 17. Qe2 Nc5 18. b4 Ncd3 19. f4 Nxc1 20. Raxc1 Ng6 21. Qxe6+ Kh8 22. Nd5 Bf6 23. Rcd1 a5 24. a3 axb4 25. axb4 Ra8 26. Bc6 Ra2 27. c5 dxc5 28. Nxf6 1-0

[Event "PNWCC Online Masters WOO"]
[Site "Chess.com INT"]
[Date "2020.07.04"]
[Round "1.14"]
[White "Kovalev, Vladislav"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "B05"]
[WhiteElo "2648"]
[BlackElo "2069"]
[PlyCount "75"]
[EventDate "2020.07.04"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. h3 Bh5 7. 0-0 Be7 8. c4 Nb6 9. Nc3 0-0 10. Be3 d5 11. c5 Nc4 12. Bxc4 dxc4 13. Qa4 Bxf3 14. gxf3 f6 15. Qxc4 fxe5 16. Qxe6+ Kh8 17. dxe5 Rxf3 18. Kg2 Qf8 19. b4 Nc6 20. b5 Nd8 21. Qd5 Rf5 22. f4 c6 23. bxc6 Nxc6 24. Ne4 Rh5 25. Nd6 Bxd6 26. cxd6 Qf5 27. Rf3 Rh6 28. Raf1 Rf8 29. R1f2 Rg6+ 30. Rg3 Nb4 31. Qf3 Nd3 32. Rf1 Nxe5 33. fxe5 Qc2+ 34. Qf2 Rxf2+ 35. Rxf2 Qe4+ 36. Kh2 Kg8 37. d7 Qd5 38. Rd2 1-0

[Event "PNWCC Online Masters WOO"]
[Site "Chess.com INT"]
[Date "2020.07.04"]
[Round "2.49"]
[White "Markzon, Gregory"]
[Black "Aaron, Michael"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2069"]
[BlackElo "1699"]
[PlyCount "51"]
[EventDate "2020.07.04"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Nc3 Nf6 7. Nf3 c5 8. a3 Bxc3+ 9. bxc3 Nc6 10. Be2 Qa5 11. 0-0 Qxc3 12. Bd2 Qb2 13. dxc5 Nd4 14. Nxd4 Qxd4 15. Qc2 e5 16. Be3 Qd7 17. Rfd1 Qc7 18. Rd6 0-0 19. Rad1 Be6 20. h3 Nd7 21. Qe4 Nxc5 22. Qxe5 Rac8 23. Bd4 f6 24. Qxc5 Qxc5 25. Bxc5 Rxc5 26. Rxe6 1-0

[Event "PNWCC Online Masters WOO"]
[Site "Chess.com INT"]
[Date "2020.07.04"]
[Round "3.22"]
[White "Preotu, Razvan"]
[Black "Markzon, Gregory"]
[Result "1/2-1/2"]
[ECO "B05"]
[WhiteElo "2487"]
[BlackElo "2069"]
[PlyCount "84"]
[EventDate "2020.07.04"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. c4 Nb6 7. Be3 Nc6 8. exd6 cxd6 9. d5 exd5 10. cxd5 Bxf3 11. Bxf3 Ne5 12. Be2 Be7 13. Qb3 0-0 14. 0-0 Rc8 15. Nd2 Ned7 16. Ne4 f5 17. Nc3 Nc5 18. Bxc5 Rxc5 19. Nb5 Bf6 20. Nxa7 Re8 21. Rfe1 g6 22. Bf1 Re5 23. a4 Nc8 24. Nb5 b6 25. Rxe5 Bxe5 26. Na3 Qh4 27. g3 Qd4 28. Nc4 Qxd5 29. Rd1 Qf7 30. Qb4 Qc7 31. Qd2 Kg7 32. Qd3 f4 33. b4 Rc6 34. Qe4 fxg3 35. hxg3 Ne7 36. Kg2 Bf6 37. Ne3 Rc3 38. a5 bxa5 39. bxa5 Qxa5 40. Rxd6 Qe5 41. Qxe5 Bxe5 42. Rd7 Rc7 1/2-1/2

[Event "Wch Seniors 65 29th"]
[Site "Bucharest"]
[Date "2019.11.22"]
[Round "10"]
[White "Markzon, Gregory"]
[Black "Ramos Caldera, Cesar"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2038"]
[BlackElo "1891"]
[PlyCount "99"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Nf6 6. Nxf6+ Qxf6 7. Nf3 h6 8. Bd3 Bd6 9. 0-0 0-0 10. Re1 Nd7 11. Qe2 Re8 12. Qe4 Nf8 13. Bd2 Bd7 14. Ne5 Qe7 15. Qf3 f5 16. Bc3 Bxe5 17. Rxe5 Ng6 18. Ree1 Qg5 19. Qg3 Nf4 20. Bf1 Qxg3 21. hxg3 Nh5 22. Bd3 Nf6 23. a4 Kf7 24. Ra3 Rad8 25. Bc2 Bc8 26. a5 a6 27. f3 Bd7 28. Bb4 Bc8 29. Bc5 Nd7 30. Ba7 g6 31. Rae3 c5 32. dxc5 Nf6 33. Bb6 Rd2 34. R1e2 Rxe2 35. Rxe2 Bd7 36. Rd2 Bc6 37. b4 Rc8 38. Bd3 Nd7 39. Be2 Kf6 40. Kf2 h5 41. f4 Ke7 42. b5 axb5 43. cxb5 Bd5 44. Rc2 Nxb6 45. axb6 e5 46. fxe5 Ke6 47. Bf3 Kxe5 48. c6 Kd6 49. Rd2 bxc6 50. b7 1-0

[Event "Wch Seniors 65 29th"]
[Site "Bucharest"]
[Date "2019.11.20"]
[Round "8"]
[White "Markzon, Gregory"]
[Black "Stanciulescu, Serban"]
[Result "1-0"]
[ECO "A55"]
[WhiteElo "2038"]
[BlackElo "1925"]
[PlyCount "133"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. Nf3 Be7 6. Be2 0-0 7. 0-0 Re8 8. Re1 exd4 9. Nxd4 Nc5 10. f3 a5 11. Be3 c6 12. Qc2 Bf8 13. Rad1 Qe7 14. Bf1 g6 15. Qf2 Bg7 16. Bg5 Qc7 17. Nc2 Ne6 18. Be3 Nd7 19. Rd2 a4 20. Nd4 a3 21. b3 Qa5 22. Rc1 Nec5 23. h3 Qc7 24. Nde2 b6 25. Ng3 h5 26. Nge2 Ne5 27. Ng3 h4 28. Nh1 Qe7 29. Qe1 Ned7 30. Nf2 f5 31. Re2 Qf7 32. exf5 gxf5 33. Qd2 Qg6 34. f4 Re6 35. Bd4 Rxe2 36. Bxe2 Ne6 37. Bxg7 Nxg7 38. Bf3 Bb7 39. Rd1 Ne8 40. Re1 Qf6 41. Re3 Rd8 42. b4 Nb8 43. b5 Nc7 44. bxc6 Bxc6 45. Nd5 Bxd5 46. Bxd5+ Kf8 47. Rxa3 Qa1+ 48. Kh2 Re8 49. Ra7 Qg7 50. Ra3 Nba6 51. Bb7 Qf6 52. Bxa6 Ra8 53. Rd3 Rxa6 54. Rxd6 Qg7 55. Rd8+ Ne8 56. Qd6+ Qe7 57. Qh6+ Kf7 58. Qh5+ Kf8 59. Qxf5+ Qf7 60. Qxf7+ Kxf7 61. Rd2 Ra4 62. Nd3 Kg6 63. Kg1 Kf5 64. c5 bxc5 65. Nxc5 Rc4 66. Nd3 Rd4 67. Kf2 1-0

[Event "Wch Seniors 65 29th"]
[Site "Bucharest"]
[Date "2019.11.19"]
[Round "7"]
[White "Heinig, Wolfram"]
[Black "Markzon, Gregory"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2241"]
[BlackElo "2038"]
[PlyCount "67"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. h3 e5 7. d5 Na6 8. Bg5 h6 9. Be3 Nc5 10. Nd2 a5 11. g4 Ne8 12. h4 Nf6 13. Be2 Nh7 14. h5 Ng5 15. hxg6 fxg6 16. b3 Qf6 17. Qc2 Bd7 18. a3 c6 19. Rb1 Qf7 20. b4 axb4 21. axb4 cxd5 22. exd5 Na6 23. Nce4 Nxe4 24. Nxe4 Qe7 25. c5 Rf4 26. Nxd6 Nxb4 27. Qxg6 Nxd5 28. Bxf4 Nxf4 29. Bc4+ Kf8 30. Qe4 Bc6 31. Qf5+ Qf6 32. Qxf6+ Bxf6 33. Rxh6 Kg7 34. Nf5+ 1-0

[Event "Wch Seniors 65 29th"]
[Site "Bucharest"]
[Date "2019.11.18"]
[Round "6"]
[White "Markzon, Gregory"]
[Black "Van Riemsdijk, Herman Claudius"]
[Result "0-1"]
[ECO "E49"]
[WhiteElo "2038"]
[BlackElo "2228"]
[PlyCount "146"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 dxc4 8. Bxc4 c5 9. Ne2 Qc7 10. Bd3 e5 11. 0-0 b6 12. Ng3 Ba6 13. Bxa6 Nxa6 14. Qe2 Nb8 15. dxe5 Qxe5 16. f4 Qe6 17. e4 Nc6 18. Kh1 Rfe8 19. e5 Rad8 20. Qf3 Nd5 21. c4 Nde7 22. Bb2 Nd4 23. Qf2 Nef5 24. Nxf5 Nxf5 25. Rac1 Rd3 26. Qe2 Red8 27. Qe4 h5 28. Kg1 g6 29. Rf2 Rd1+ 30. Rxd1 Rxd1+ 31. Rf1 Rxf1+ 32. Kxf1 Qxc4+ 33. Qxc4 Ne3+ 34. Ke2 Nxc4 35. Bc1 b5 36. Kd3 Nb6 37. Ke4 Kf8 38. Be3 Na4 39. Kd5 b4 40. axb4 cxb4 41. Kc4 a5 42. Bd4 Ke8 43. g3 Nc3 44. Bb6 a4 45. Ba5 Nd5 46. Bxb4 Ne3+ 47. Kb5 Nf1 48. Kxa4 Nxh2 49. Kb5 Nf1 50. Be1 Kd7 51. Kc4 Ke6 52. Kd3 Kf5 53. Ke2 Nh2 54. Ke3 Kg4 55. Kf2 Kh3 56. Bc3 Kg4 57. Bd2 Nf3 58. Be3 h4 59. gxh4 Nxh4 60. Bc1 Nf5 61. Bd2 Ng3 62. Ba5 Nh5 63. Ke3 Nxf4 64. Ke4 Ne6 65. Kd5 Kf5 66. Kd6 Nd4 67. Be1 Nf3 68. Bg3 g5 69. Kd5 Nh4 70. Kd6 Ng6 71. Kd5 g4 72. Kd6 Ke4 73. e6 f5 0-1

[Event "Wch Seniors 65 29th"]
[Site "Bucharest"]
[Date "2019.11.16"]
[Round "5"]
[White "Afek, Yochanan"]
[Black "Markzon, Gregory"]
[Result "1/2-1/2"]
[ECO "B92"]
[WhiteElo "2257"]
[BlackElo "2038"]
[PlyCount "46"]
[EventDate "2019.11.12"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ROU"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Be2 Be7 9. Bf3 0-0 10. 0-0 Nbd7 11. a4 Nb6 12. Nd2 Nfd7 13. b3 Bg5 14. Bxg5 Qxg5 15. a5 Nc8 16. Re1 Rd8 17. Nf1 Nf6 18. Ne3 Ne7 19. Qd3 Rac8 20. g3 Nc6 21. h4 Qg6 22. Bg2 Nd4 23. Ne2 d5 1/2-1/2

