[Event "Titled Tuesday intern op 5th May"]
[Site "Chess.com INT"]
[Date "2020.05.05"]
[Round "1"]
[White "O'Brien, Matthew"]
[Black "Vrolijk, Liam"]
[Result "0-1"]
[ECO "C78"]
[WhiteElo "2390"]
[BlackElo "2502"]
[PlyCount "116"]
[EventDate "2020.05.05"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bc5 7. c3 d6 8. d4 Bb6 9. Bg5 h6 10. Bh4 0-0 11. Qc1 exd4 12. cxd4 Nxd4 13. Nxd4 Bxd4 14. Nc3 g5 15. Bg3 Be6 16. Kh1 Bxc3 17. Qxc3 Nxe4 18. Qe3 Bxb3 19. Qxe4 f5 20. Qb1 Bc4 21. Re1 Qf6 22. b3 Bd5 23. f3 Rae8 24. Qd3 c6 25. Bf2 Qf7 26. Bd4 Re6 27. Rxe6 Qxe6 28. Bb2 Re8 29. h3 Kh7 30. Qd4 Qf7 31. Kh2 Kg6 32. Rd1 Qe7 33. Kh1 Qe5 34. Qd2 Qe3 35. Qc2 Qe2 36. Rd2 Qe1+ 37. Kh2 h5 38. Qc3 Qe5+ 39. Qxe5 dxe5 40. Re2 e4 41. fxe4 Bxe4 42. Kg1 Rd8 43. Kf2 Rd3 44. Ba3 Rd1 45. Be7 h4 46. Bc5 Kf6 47. Bb6 Bd3 48. Rb2 Be4 49. Be3 f4 50. Bd2 Kf5 51. Bc3 Bd5 52. Bb4 Rd3 53. Bc5 f3 54. gxf3 Rxf3+ 55. Kg1 Rxh3 56. Rf2+ Kg4 57. Rd2 Rh1+ 58. Kf2 Rh2+ 0-1

[Event "Titled Tuesday intern op 5th May"]
[Site "Chess.com INT"]
[Date "2020.05.05"]
[Round "3"]
[White "Svane, Rasmus"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2613"]
[BlackElo "2384"]
[PlyCount "65"]
[EventDate "2020.05.05"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d4 d6 6. Re1 c6 7. e4 Nbd7 8. Nc3 e5 9. a4 Rb8 10. h3 Qc7 11. Be3 b6 12. Qd2 a6 13. g4 Bb7 14. Rad1 Rfd8 15. Bg5 b5 16. b3 b4 17. Nb1 c5 18. d5 Rdc8 19. Bf1 a5 20. Qe3 Nb6 21. Nbd2 Ra8 22. Bb5 Nfxd5 23. exd5 Nxd5 24. Qd3 Nc3 25. Qe3 d5 26. Nh2 d4 27. Qd3 e4 28. Nxe4 Bxe4 29. Rxe4 Nxd1 30. Qxd1 Be5 31. Nf3 Bd6 32. Qe2 Rf8 33. Bf6 1-0

[Event "Titled Tuesday intern op 5th May"]
[Site "Chess.com INT"]
[Date "2020.05.05"]
[Round "2"]
[White "Wiebe, Isaac"]
[Black "O'Brien, Matthew"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "1997"]
[BlackElo "2385"]
[PlyCount "164"]
[EventDate "2020.05.05"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Be2 d6 6. Nf3 c5 7. 0-0 cxd4 8. Nxd4 Bd7 9. Be3 Nc6 10. h3 Qa5 11. Qd2 Rfc8 12. Rac1 a6 13. Rfd1 Ne5 14. b3 Nc6 15. f4 Nxd4 16. Bxd4 Bc6 17. Bf3 Nd7 18. Bxg7 Kxg7 19. Qd4+ Kg8 20. Nd5 Bxd5 21. exd5 Qc5 22. Qxc5 Nxc5 23. Kf2 Rc7 24. h4 Rac8 25. h5 b5 26. hxg6 hxg6 27. Be2 b4 28. Rh1 Kg7 29. Ke3 a5 30. Rh2 Rh8 31. Rxh8 Kxh8 32. Rh1+ Kg7 33. Bd1 Ra7 34. Kd4 a4 35. Re1 axb3 36. Bxb3 Kf6 37. g4 e6 38. dxe6 fxe6 39. g5+ Kf7 40. Rh1 Kg7 41. Re1 Rf7 42. Ke3 e5 43. fxe5 dxe5 44. Rd1 Rf5 45. Rd5 Nxb3 46. axb3 Rxg5 47. Rb5 Rg3+ 48. Ke4 Rxb3 49. Kxe5 Rb1 50. c5 Rc1 51. Rxb4 Rxc5+ 52. Kf4 Rc1 53. Kg3 Kh6 54. Rb5 Rc4 55. Ra5 g5 56. Rb5 Kh5 57. Rb8 Rc3+ 58. Kg2 Kg4 59. Rb4+ Kh5 60. Ra4 g4 61. Rb4 Kh4 62. Ra4 Rc2+ 63. Kg1 Kh3 64. Ra3+ g3 65. Ra1 Kg4 66. Re1 Kf3 67. Rf1+ Kg4 68. Re1 Kh3 69. Rd1 Rf2 70. Re1 Kg4 71. Rd1 Kf3 72. Rd3+ Kg4 73. Rd1 Kh3 74. Rc1 Rg2+ 75. Kh1 Rh2+ 76. Kg1 Rg2+ 77. Kh1 Rh2+ 78. Kg1 Rf2 79. Rd1 Rg2+ 80. Kh1 Rh2+ 81. Kg1 Rg2+ 82. Kh1 Rh2+ 1/2-1/2

[Event "Titled Tuesday intern op1 3rd March"]
[Site "Chess.com INT"]
[Date "2020.03.03"]
[Round "3"]
[White "O'Brien, Matthew"]
[Black "Niedbala, Bartlomiej"]
[Result "0-1"]
[ECO "B27"]
[WhiteElo "2386"]
[BlackElo "2381"]
[PlyCount "44"]
[EventDate "2020.03.03"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Qxd4 Nf6 5. Nc3 Nc6 6. Qa4 d6 7. e5 dxe5 8. Nxe5 Bd7 9. Nxd7 Qxd7 10. Bd2 Bg7 11. 0-0-0 Qc7 12. Bf4 Qc8 13. h4 0-0 14. Be2 a6 15. h5 b5 16. Qb3 e5 17. Be3 Nd4 18. Bxd4 exd4 19. Rxd4 Nxh5 20. Nd5 Re8 21. Bxh5 Bxd4 22. Bxg6 hxg6 0-1

[Event "Titled Tuesday intern op1 3rd March"]
[Site "Chess.com INT"]
[Date "2020.03.03"]
[Round "1"]
[White "O'Brien, Matthew"]
[Black "Savchenko, Boris"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "2406"]
[BlackElo "2564"]
[PlyCount "52"]
[EventDate "2020.03.03"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. a3 Be7 8. g4 0-0 9. g5 Nfd7 10. h4 b5 11. Rg1 Bb7 12. h5 Nc6 13. Nxc6 Bxc6 14. g6 f5 15. exf5 exf5 16. gxh7+ Kh8 17. Nd5 Bxd5 18. Qxd5 Bf6 19. Qxd6 Bxb2 20. Rd1 Ne5 21. Be2 Qh4 22. Bd4 Rae8 23. Kf1 Bxd4 24. Qxd4 Qh3+ 25. Rg2 f4 26. Bg4 Nxg4 0-1

[Event "Titled Tuesday intern op1 3rd March"]
[Site "Chess.com INT"]
[Date "2020.03.03"]
[Round "2"]
[White "Serreau, David"]
[Black "O'Brien, Matthew"]
[Result "1/2-1/2"]
[ECO "E60"]
[WhiteElo "2155"]
[BlackElo "2400"]
[PlyCount "49"]
[EventDate "2020.03.03"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. b3 Bg7 4. Bb2 0-0 5. g3 d6 6. d4 c5 7. Bg2 Nc6 8. 0-0 cxd4 9. Nxd4 Bd7 10. Nc3 Nxd4 11. Qxd4 Bc6 12. Nd5 Nh5 13. Qd2 e6 14. Nc3 Bxg2 15. Kxg2 Qc7 16. Rad1 Rfd8 17. e4 a6 18. f3 Rac8 19. Ne2 b5 20. Bxg7 Kxg7 21. cxb5 axb5 22. Rc1 Qb6 23. Rxc8 Rxc8 24. Rc1 Rxc1 25. Qxc1 1/2-1/2

[Event "Titled Tuesday intern op 1st Oct"]
[Site "Chess.com INT"]
[Date "2019.10.01"]
[Round "1"]
[White "O'Brien, Matthew"]
[Black "Hansen, Eric"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2431"]
[BlackElo "2611"]
[PlyCount "184"]
[EventDate "2019.10.01"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 Nf6 4. e5 Nd5 5. d4 cxd4 6. cxd4 d6 7. Bd3 dxe5 8. Nxe5 Nc6 9. Nxc6 bxc6 10. 0-0 Bd6 11. g3 0-0 12. Nc3 Nxc3 13. bxc3 Qc7 14. Qe2 Bb7 15. Be4 c5 16. dxc5 Bxc5 17. Bxb7 Qxb7 18. Be3 Rac8 19. Rab1 Qe4 20. Rb3 Bxe3 21. Qxe3 Qxe3 22. fxe3 Rc7 23. Rd1 Rfc8 24. Rd3 Kf8 25. Kf2 Ke7 26. Ke2 Rc5 27. Ra3 R8c7 28. Kd2 g5 29. Rd4 a5 30. Rda4 Rd5+ 31. Ke2 Rcc5 32. c4 Re5 33. Kd3 g4 34. Kd4 Rh5 35. Kd3 Kd6 36. Kd4 Kc7 37. Kd3 Kb6 38. Rb3+ Ka7 39. Kd4 Rc7 40. Rb5 Rxb5 41. cxb5 Kb6 42. Rc4 Rd7+ 43. Kc3 Kxb5 44. Rxg4 f5 45. a4+ Kc5 46. Rg8 Rc7 47. Re8 Kd5+ 48. Kd3 Rb7 49. Rd8+ Ke5 50. Ra8 Rb3+ 51. Ke2 Ke4 52. Rxa5 Rb2+ 53. Kd1 Rxh2 54. Ra6 e5 55. a5 Kxe3 56. Rf6 Ke4 57. a6 Ra2 58. Ke1 Ke3 59. Kf1 f4 60. gxf4 exf4 61. Kg1 Kf3 62. Re6 Ra1+ 63. Kh2 Kf2 64. Kh3 f3 65. Rf6 Ra4 66. Rh6 Ra1 67. Re6 Kf1 68. Kg3 f2 69. Rf6 Ra3+ 70. Kh2 h5 71. Rh6 Ra5 72. Rf6 Re5 73. a7 Ra5 74. Rf7 Ra3 75. Re7 h4 76. Rf7 Ke1 77. Re7+ Kd1 78. Rf7 Ke2 79. Re7+ Kf3 80. Rf7+ Ke3 81. Kg2 Ra2 82. Rf3+ Ke4 83. Rxf2 h3+ 84. Kg3 Rxa7 85. Kxh3 Rh7+ 86. Kg2 Ke3 87. Rf3+ Ke2 88. Rh3 Rg7+ 89. Rg3 Rf7 90. Rg6 Rf4 91. Kg3 Re4 92. Rf6 Re8 1/2-1/2

[Event "Titled Tuesday intern op 2nd April"]
[Site "Chess.com INT"]
[Date "2019.04.02"]
[Round "5"]
[White "Christiansen, Johan Sebastian"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "A15"]
[WhiteElo "2571"]
[BlackElo "2398"]
[PlyCount "55"]
[EventDate "2019.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. f4 Nf6 2. c4 g6 3. a4 Bg7 4. h4 c5 5. d3 Nc6 6. e3 d6 7. Nc3 0-0 8. Nf3 Bg4 9. Be2 Re8 10. Ng5 Bxe2 11. Qxe2 e5 12. f5 gxf5 13. Qf3 h6 14. Qxf5 hxg5 15. hxg5 Qd7 16. Qf3 Ng4 17. Nd5 e4 18. dxe4 Nb4 19. Bd2 Nxd5 20. cxd5 Ne5 21. Qh5 Qg4 22. Qh7+ Kf8 23. Bc3 Qxg2 24. 0-0-0 b5 25. axb5 c4 26. Kb1 Rab8 27. Rhf1 Nd3 28. Qxg7+ 1-0

[Event "Titled Tuesday intern op 2nd April"]
[Site "Chess.com INT"]
[Date "2019.04.02"]
[Round "3"]
[White "Echavarria, Johann"]
[Black "O'Brien, Matthew"]
[Result "0-1"]
[ECO "B86"]
[WhiteElo "2379"]
[BlackElo "2408"]
[PlyCount "128"]
[EventDate "2019.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. Bg5 Nc5 9. f4 h6 10. Bxf6 Qxf6 11. 0-0 Be7 12. f5 Qe5 13. Nf3 Qf6 14. e5 dxe5 15. fxe6 Bxe6 16. Nd4 exd4 17. Rxf6 Bxf6 18. Nd5 Bxd5 19. Bxd5 0-0 20. Qf3 Rad8 21. Re1 b6 22. g3 a5 23. Kg2 Rd6 24. h4 Rfd8 25. Bc4 Na4 26. b3 Nc5 27. a4 d3 28. cxd3 Nxd3 29. Re7 Bxe7 30. Qxf7+ Kh8 31. Qxe7 Nc5 32. Kh3 Nd3 33. Qc7 Nf2+ 34. Kg2 Nd1 35. Qf7 Ne3+ 36. Kh3 Nxc4 37. Qxc4 Re8 38. Qc7 Ree6 39. Qb8+ Kh7 40. Qb7 Rc6 41. Qa7 Rc3 42. Qb7 Ree3 43. Qd7 Rxg3+ 44. Kh2 Rg6 45. h5 Rg5 46. Qe8 Rf3 47. Qe4+ Rff5 48. Qd3 Rxh5+ 49. Kg3 Rhg5+ 50. Kh3 Kg6 51. Qd6+ Rf6 52. Qd3+ Rgf5 53. Kg4 Kh7 54. Qc2 Kg8 55. Qc8+ Kh7 56. Qc2 h5+ 57. Kh4 Kh6 58. Qc1+ g5+ 59. Kg3 Rf3+ 60. Kg2 Rf2+ 61. Kg1 Rf1+ 62. Qxf1 Rxf1+ 63. Kxf1 g4 64. Kg2 h4 0-1

[Event "Titled Tuesday intern op 2nd April"]
[Site "Chess.com INT"]
[Date "2019.04.02"]
[Round "6"]
[White "Kotepalli, Sai Nirupama"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "1914"]
[BlackElo "2381"]
[PlyCount "143"]
[EventDate "2019.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Nf3 0-0 5. Be2 d6 6. h3 b6 7. 0-0 Bb7 8. c4 Nbd7 9. Nc3 a6 10. a4 a5 11. Qc2 Re8 12. Rad1 Qb8 13. Rfe1 e5 14. dxe5 dxe5 15. Bg5 h6 16. Bh4 Nf8 17. Bxf6 Bxf6 18. e4 c6 19. Qd2 Kg7 20. Nh2 Bg5 21. Qc2 Ne6 22. Qb3 Ba6 23. Nf3 Be7 24. Rd2 Qc7 25. Red1 Rad8 26. Qc2 Rxd2 27. Rxd2 Rd8 28. Rxd8 Bxd8 29. Qd2 Be7 30. Kf1 Bb4 31. Qe3 Bc5 32. Qd2 Bb4 33. Qe3 Nc5 34. Nh2 h5 35. g4 h4 36. Nf3 Qe7 37. g5 Bc8 38. Nxh4 Bxh3+ 39. Qxh3 Qxg5 40. Bf3 Qc1+ 41. Nd1 Qxc4+ 42. Kg2 Nxe4 43. Qg4 Nd6 44. Nf5+ Kf6 45. Nxd6 Qxg4+ 46. Bxg4 Bxd6 47. Ne3 e4 48. Nc4 Bc5 49. Bd7 Bd4 50. Bxc6 Kf5 51. Kg3 g5 52. b3 Bc5 53. Bd5 Bd4 54. Bxf7 Kf6 55. Bd5 Bc5 56. Bxe4 Ke7 57. Kg4 Bxf2 58. Kxg5 Ke6 59. Kf4 Bc5 60. Bf3 Ke7 61. Ke5 Kd7 62. Kd5 Kc7 63. Bg4 Bg1 64. Ne5 Bf2 65. Nf7 Bg1 66. Nd6 Bf2 67. Nb5+ Kb7 68. Bf3 Bg1 69. Kd6+ Ka6 70. Kc7 Bh2+ 71. Kc8 Bg3 72. Bb7# 1-0

[Event "Titled Tuesday intern op 2nd April"]
[Site "Chess.com INT"]
[Date "2019.04.02"]
[Round "8"]
[White "Li, William"]
[Black "O'Brien, Matthew"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2096"]
[BlackElo "2399"]
[PlyCount "44"]
[EventDate "2019.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. 0-0 Ngf6 5. Re1 a6 6. Bf1 e6 7. c3 Be7 8. d4 cxd4 9. cxd4 d5 10. e5 Ne4 11. Bd3 0-0 12. Bxe4 dxe4 13. Rxe4 b5 14. Rg4 f5 15. exf6 Nxf6 16. Rg3 Bd6 17. Rg5 Bb7 18. Nc3 b4 19. Na4 Ne4 20. Rh5 Qe8 21. Ng5 Nxf2 22. Qc2 Qxh5 0-1

[Event "Titled Tuesday intern op 2nd April"]
[Site "Chess.com INT"]
[Date "2019.04.02"]
[Round "1"]
[White "O'Brien, Matthew"]
[Black "Mousavi, Seyed Khalil"]
[Result "0-1"]
[ECO "C18"]
[WhiteElo "2399"]
[BlackElo "2475"]
[PlyCount "48"]
[EventDate "2019.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[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 dxc3 12. Qd3 Bd7 13. Qxc3 Nf5 14. Rg1 Qd8 15. Kd1 Rc8 16. Qd3 Na5 17. g4 Qb6 18. Bd2 Bb5 19. Bxa5 Qxa5 20. Qd2 Qb6 21. Rb1 Ne3+ 22. Kc1 Rxc2+ 23. Qxc2 Nxc2 24. Kxc2 Bd3+ 0-1

[Event "Titled Tuesday intern op 2nd April"]
[Site "Chess.com INT"]
[Date "2019.04.02"]
[Round "2"]
[White "O'Brien, Matthew"]
[Black "Raja, Harshit"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2396"]
[BlackElo "2432"]
[PlyCount "42"]
[EventDate "2019.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Bg5 h6 8. Bc1 g5 9. h4 Bg7 10. Be2 Ne5 11. hxg5 hxg5 12. Rxh8+ Bxh8 13. Bxg5 Nbc6 14. Nxc6 bxc6 15. f4 Ng6 16. Qd3 Rb8 17. 0-0-0 Qa5 18. e5 Qb4 19. b3 Nxf4 20. Bxf4 Qxf4+ 21. Rd2 Qxe5 0-1

[Event "Titled Tuesday intern op 2nd April"]
[Site "Chess.com INT"]
[Date "2019.04.02"]
[Round "9"]
[White "O'Brien, Matthew"]
[Black "Vlachos, Anatole"]
[Result "0-1"]
[ECO "B72"]
[WhiteElo "2389"]
[BlackElo "2405"]
[PlyCount "55"]
[EventDate "2019.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 a6 7. f3 b5 8. Qd2 Bb7 9. h4 Nbd7 10. 0-0-0 b4 11. Nce2 e5 12. Nb3 a5 13. Kb1 a4 14. Nbc1 d5 15. Ng3 d4 16. Bf2 h5 17. Bc4 Qc7 18. Bb5 Qb6 19. Qe2 Bh6 20. Bxd7+ Nxd7 21. Nf1 Nc5 22. Nd3 b3 23. Nxc5 Qxc5 24. cxb3 axb3 25. a3 Ba6 26. Qe1 Qc2+ 27. Ka1 Bxf1 28. Qb4 0-1

[Event "Titled Tuesday intern op 2nd April"]
[Site "Chess.com INT"]
[Date "2019.04.02"]
[Round "4"]
[White "O'Brien, Matthew"]
[Black "Weetik, Vjacheslav"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2402"]
[BlackElo "2423"]
[PlyCount "104"]
[EventDate "2019.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. d4 e6 5. Bd3 Nf6 6. h3 Bh5 7. 0-0 Be7 8. Re1 0-0 9. e5 Nfd7 10. Ne2 Bxf3 11. gxf3 c5 12. c3 Nc6 13. Kh1 cxd4 14. cxd4 Bg5 15. f4 Bh6 16. Rg1 g6 17. Kh2 Rc8 18. Be3 f5 19. a3 Qh4 20. Rg3 Rf7 21. Qb3 Nb6 22. a4 Na5 23. Qb5 Nac4 24. a5 a6 25. Qb4 Nxe3 26. fxe3 Nc4 27. Rc1 Rfc7 28. b3 Nxe3 29. Rxc7 Rxc7 30. Qd6 Nf1+ 31. Kg2 Nxg3 32. Qxc7 Nxe2 33. Qc8+ Kf7 34. Qd7+ Qe7 35. Qxe7+ Kxe7 36. Bxe2 Bxf4 37. Kf3 Bd2 38. Bd3 Bxa5 39. Bc2 Bc3 40. Ke3 g5 41. Kd3 Bb2 42. Bd1 a5 43. Bh5 b5 44. Bd1 Kf7 45. Bh5+ Kf8 46. Bd1 Kg7 47. Bh5 a4 48. bxa4 bxa4 49. Bd1 a3 50. Bb3 h5 51. Ke3 Kg6 52. Kf3 g4+ 0-1

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "Burmeister, Ferdinand"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2256"]
[BlackElo "2110"]
[PlyCount "33"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Be3 Qa5 9. Qd2 0-0 10. Rc1 Nd7 11. Bd3 e5 12. d5 b5 13. c4 b4 14. 0-0 Qc7 15. Ne1 a5 16. f3 a4 17. Bb1 1-0

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "Buss, Michael D"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "2197"]
[BlackElo "2110"]
[PlyCount "23"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Be2 e6 3. f4 d5 4. d3 b6 5. Nf3 Bb7 6. 0-0 dxe4 7. dxe4 Qxd1 8. Rxd1 Bxe4 9. Nc3 Bxc2 10. Rd2 Bg6 11. Nb5 Na6 12. a4 1-0

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "Caliguire, John J Jr"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "2132"]
[BlackElo "2110"]
[PlyCount "25"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. 0-0-0 Be7 9. f3 b5 10. g4 Nxd4 11. Bxd4 Bb7 12. g5 Nh5 13. Kb1 1-0

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "Edwards, K E D G"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "2184"]
[BlackElo "2110"]
[PlyCount "31"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. f3 Be7 9. 0-0-0 b5 10. g4 Nxd4 11. Qxd4 Bb7 12. g5 Nh5 13. Kb1 Rc8 14. Qd2 g6 15. Rg1 b4 16. Na4 1-0

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "Leisner, Jon S"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B49"]
[WhiteElo "2179"]
[BlackElo "2110"]
[PlyCount "23"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2 b5 8. Nxc6 dxc6 9. 0-0 Bb7 10. f4 Be7 11. Bf3 Rd8 12. Qe2 1-0

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "Mills, Holland"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B83"]
[WhiteElo "2234"]
[BlackElo "2110"]
[PlyCount "23"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 Nf6 7. Be3 Be7 8. f4 d6 9. Qd2 Nxd4 10. Bxd4 e5 11. Be3 0-0 12. 0-0-0 1-0

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "O'Brien, Matthew"]
[Black "Chilson, Steven W"]
[Result "0-1"]
[ECO "E20"]
[WhiteElo "2110"]
[BlackElo "2145"]
[PlyCount "36"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 c5 5. d5 0-0 6. e4 d6 7. Nge2 b5 8. Ng3 bxc4 9. Bxc4 Bxc3+ 10. bxc3 Qa5 11. 0-0 Qxc3 12. Qb3 Qxa1 13. Bb2 Qxf1+ 14. Bxf1 e5 15. Bc3 g6 16. Ba5 Nbd7 17. Qa4 Rb8 18. Bc7 Rb4 0-1

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "O'Brien, Matthew"]
[Black "Endsley, Barry E"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2110"]
[BlackElo "2254"]
[PlyCount "40"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 0-0 8. Bd3 Nc6 9. Qe2 Re8 10. 0-0-0 Bg4 11. Be4 Bf8 12. Bd5 Qd7 13. h3 Be6 14. Bxe6 Qxe6 15. Kb1 a6 16. h4 Qg4 17. Qf1 Ne5 18. Nxe5 Rxe5 19. Bd4 Re7 20. Be3 Rae8 0-1

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "O'Brien, Matthew"]
[Black "Haug, Geoffrey"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2110"]
[BlackElo "2186"]
[PlyCount "24"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nde2 h5 8. Bg5 Be6 9. Bxf6 Qxf6 10. Nd5 Qd8 11. Qd3 Nd7 12. 0-0-0 g6 0-1

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "O'Brien, Matthew"]
[Black "Kolojeski, Paul"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2110"]
[BlackElo "2107"]
[PlyCount "20"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Ne7 6. Nbd2 c5 7. 0-0 Nec6 8. Nb3 c4 9. Nbd2 b5 10. b3 c3 0-1

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "O'Brien, Matthew"]
[Black "Neale, Mark"]
[Result "0-1"]
[ECO "B32"]
[WhiteElo "2110"]
[BlackElo "2270"]
[PlyCount "20"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 b5 8. Nd5 Nf6 9. c4 b4 10. Nc2 Nxe4 0-1

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "O'Brien, Matthew"]
[Black "Nenneman, Daniel"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "2110"]
[BlackElo "2230"]
[PlyCount "28"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. Bd2 Nf6 7. e3 c5 8. Bxc4 cxd4 9. Nxd4 0-0 10. 0-0 Bd7 11. Qe2 Nc6 12. Nf3 Qa5 13. e4 Rfd8 14. e5 Nd5 0-1

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "O'Brien, Matthew"]
[Black "Sciarretta, Robert W"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "2110"]
[BlackElo "2167"]
[PlyCount "40"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3 c4 7. Nbd2 Na5 8. Be2 Bd7 9. 0-0 Ne7 10. Rb1 Qc7 11. Re1 Nc8 12. Nf1 h6 13. h4 Nb6 14. Bf4 0-0-0 15. h5 Be7 16. Qd2 Ba4 17. Bg3 Rdf8 18. N3h2 Kb8 19. Bg4 Rhg8 20. Qe2 Qd7 0-1

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "O'Brien, Matthew"]
[Black "Tateo, Ida"]
[Result "0-1"]
[ECO "A65"]
[WhiteElo "2110"]
[BlackElo "2254"]
[PlyCount "20"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. f3 Bg7 4. e4 d6 5. Nc3 0-0 6. Nge2 c5 7. d5 e6 8. Ng3 exd5 9. cxd5 h5 10. Bg5 a6 0-1

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "Thomas, Tim"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "2157"]
[BlackElo "2110"]
[PlyCount "41"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. c4 e6 2. e3 d5 3. Nf3 Nf6 4. b3 Bd6 5. d4 0-0 6. Nbd2 b6 7. Bd3 Bb7 8. Bb2 Nbd7 9. 0-0 c5 10. Qe2 cxd4 11. Nxd4 Rc8 12. cxd5 Nxd5 13. Nc4 Bb8 14. Rac1 a6 15. Qd2 Nc5 16. Bb1 b5 17. Na5 Ba8 18. Rfd1 Qg5 19. Nac6 Bd6 20. Nf3 Qh5 21. Ncd4 1-0

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2019.01.27"]
[Round "?"]
[White "Weiss, Lester P"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "E97"]
[WhiteElo "2188"]
[BlackElo "2110"]
[PlyCount "33"]
[EventDate "2019.??.??"]
[EventType "tourn (corr)"]
[EventRounds "16"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Nd2 a5 10. a3 Bd7 11. b3 c6 12. Bb2 Qb8 13. Rb1 Bh6 14. a4 c5 15. Bc1 Qd8 16. Nf3 Bg7 17. Kh1 1-0

[Event "Titled Tuesday intern op 4th Dec"]
[Site "Chess.com INT"]
[Date "2018.12.04"]
[Round "1"]
[White "O'Brien, Matthew"]
[Black "Chan, Yi Ren Daniel"]
[Result "0-1"]
[ECO "C70"]
[WhiteElo "2373"]
[BlackElo "2316"]
[PlyCount "62"]
[EventDate "2018.12.04"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nge7 5. 0-0 g6 6. Nc3 Bg7 7. d3 0-0 8. Bg5 h6 9. Bh4 Kh7 10. Nd5 g5 11. Nxg5+ Kh8 12. Bxc6 dxc6 13. Nxe7 Qxe7 14. Qh5 Bd7 15. Nh7 Qb4 16. Nxf8 Rxf8 17. Bf6 Kh7 18. Bxg7 Kxg7 19. Qxe5+ Kh7 20. Qxc7 Be6 21. c3 Qxb2 22. Rab1 Qxc3 23. Rxb7 Qxd3 24. Qxc6 Kh8 25. Rc1 Qe2 26. Qc3+ Kh7 27. Qf6 Qxe4 28. Rbc7 Rg8 29. g3 Rg7 30. R7c3 Bh3 31. Qd6 Qg2# 0-1

[Event "Titled Tuesday intern op 6th Nov"]
[Site "Chess.com INT"]
[Date "2018.11.06"]
[Round "1"]
[White "O'Brien, Matthew"]
[Black "Bryakin, Mikhail"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2327"]
[BlackElo "2426"]
[PlyCount "80"]
[EventDate "2018.11.06"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Nf6 4. e5 Ne4 5. d4 Nxc3 6. bxc3 Bg4 7. Bd3 e6 8. 0-0 Nd7 9. Rb1 b5 10. h3 Bh5 11. g4 Bg6 12. Kg2 Be7 13. Rh1 a6 14. h4 c5 15. Bxg6 hxg6 16. h5 gxh5 17. Rxh5 Rxh5 18. gxh5 Qa5 19. Bg5 Qxc3 20. Bxe7 Kxe7 21. Qc1 f6 22. Qf4 Qxc2 23. Re1 Rh8 24. exf6+ gxf6 25. dxc5 Rg8+ 26. Kf1 Qc4+ 27. Qxc4 bxc4 28. c6 Nc5 29. Rb1 Kd6 30. c7 Kxc7 31. Nd4 Rh8 32. Re1 e5 33. Nf5 Rxh5 34. Ng3 Rh4 35. Kg2 Ne4 36. Rb1 Nxg3 37. fxg3 Rd4 38. Rf1 Rd2+ 39. Kh3 c3 40. Rxf6 c2 0-1

[Event "Titled Tuesday intern op 1st May"]
[Site "Chess.com INT"]
[Date "2018.05.01"]
[Round "1"]
[White "Kouzari, Michael"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "E70"]
[WhiteElo "2644"]
[BlackElo "2309"]
[PlyCount "139"]
[EventDate "2018.05.01"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. f3 c5 6. dxc5 b6 7. cxb6 Qxb6 8. Bd3 Nc6 9. Nge2 e6 10. Qb3 Nb4 11. Bb1 Ba6 12. Nb5 Bxb5 13. Qxb4 Ba6 14. Qxb6 axb6 15. e5 Ne8 16. f4 Nc7 17. Be4 Ra7 18. Be3 Rb8 19. Rc1 Bb7 20. Bxb7 Rbxb7 21. a3 Ne8 22. Rd1 Ra4 23. Rc1 Bf8 24. Kf2 Bc5 25. Rhd1 Kf8 26. Nd4 Ke7 27. Nb5 Nc7 28. b3 Ra8 29. Bxc5+ bxc5 30. a4 Ne8 31. Rd3 Rc8 32. Rcd1 Rc6 33. g4 h6 34. h4 Ng7 35. Kf3 h5 36. gxh5 Nxh5 37. Ke4 Ng7 38. Rd6 Nf5 39. R6d3 Nxh4 40. Rh3 Nf5 41. Rh8 Ng3+ 42. Kf3 Nf5 43. Ra8 d6 44. exd6+ Nxd6 45. Rd3 Nf5 46. a5 g5 47. fxg5 e5 48. Ke4 Ng7 49. a6 Rbb6 50. a7 Ra6 51. Rd5 Ne6 52. Rxe5 Rcb6 53. Rb8 Rxb5 54. cxb5 Rxa7 55. b6 Ra1 56. Rb7+ Kd6 57. Rxe6+ fxe6 58. g6 Rg1 59. Rg7 Re1+ 60. Kd3 c4+ 61. Kxc4 Rc1+ 62. Kb5 Rc5+ 63. Ka6 Rc1 64. b7 Kc6 65. Ka5 Ra1+ 66. Kb4 Ra7 67. b8Q Rxg7 68. Qe8+ Kd5 69. Qf7 Rxf7 70. gxf7 1-0

[Event "Titled Tuesday intern op 1st May"]
[Site "Chess.com INT"]
[Date "2018.05.01"]
[Round "2"]
[White "Mareco, Sandro"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2637"]
[BlackElo "2307"]
[PlyCount "81"]
[EventDate "2018.05.01"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d4 d6 6. Nc3 c6 7. e4 Nbd7 8. a4 e5 9. h3 Re8 10. Re1 a6 11. b3 exd4 12. Nxd4 d5 13. exd5 Rxe1+ 14. Qxe1 Nxd5 15. Nxd5 cxd5 16. Be3 Ne5 17. Rd1 Nc6 18. Qd2 Be6 19. Kh2 Rc8 20. Nxe6 fxe6 21. f4 Ne7 22. Qe2 Qc7 23. Bf2 Qd7 24. h4 Nf5 25. c4 d4 26. Qe4 a5 27. Re1 d3 28. Rd1 Rd8 29. Qxb7 Qxb7 30. Bxb7 Rb8 31. Be4 Rxb3 32. Rxd3 Rb2 33. Kg1 e5 34. c5 Nd4 35. fxe5 Ne2+ 36. Kf1 Bxe5 37. c6 Nc1 38. Rd7 Nb3 39. Bd5+ Kf8 40. c7 Nd2+ 41. Kg2 1-0

[Event "Titled Tuesday intern op 1st May"]
[Site "Chess.com INT"]
[Date "2018.05.01"]
[Round "5"]
[White "O'Brien, Matthew"]
[Black "Lugovskoy, Maxim"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2341"]
[BlackElo "2391"]
[PlyCount "95"]
[EventDate "2018.05.01"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[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. Qxc3 0-0-0 14. Rb1 d4 15. Qc5 Be8 16. Rg1 Nf5 17. g4 Nh4 18. Rg3 f6 19. exf6 e5 20. h3 e4 21. Rgb3 b6 22. Qc4 Bf7 23. Qa6+ Kd7 24. Qa4 Nf3+ 25. Rxf3 exf3 26. Nxd4 Bd5 27. Bb5 Rge8+ 28. Kf2 Re4 29. Be3 Rde8 30. f7 Rh8 31. Bxc6+ Bxc6 32. Qxc6+ Qxc6 33. Nxc6 Kxc6 34. Kxf3 Re7 35. Rh1 Rxf7 36. h4 Kd5 37. h5 Rc7 38. g5 Ke6 39. Bd4 Rd8 40. c3 Kf5 41. g6 Re7 42. g7 Re4 43. Rh4 Re1 44. h6 Rde8 45. h7 Rf1+ 46. Bf2 Rd8 47. g8Q Rd2 48. Qf7# 1-0

[Event "Titled Tuesday intern op 1st May"]
[Site "Chess.com INT"]
[Date "2018.05.01"]
[Round "3"]
[White "O'Brien, Matthew"]
[Black "Pulvett Marin, Daniel Eduardo"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2318"]
[BlackElo "2455"]
[PlyCount "45"]
[EventDate "2018.05.01"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h4 e5 7. Nb3 Be6 8. f4 exf4 9. Bxf4 Be7 10. Qf3 Bg4 11. Qf2 b5 12. Be2 Bxe2 13. Qxe2 b4 14. Nd5 Nxd5 15. exd5 0-0 16. 0-0-0 Bf6 17. Qg4 a5 18. Nd4 b3 19. cxb3 a4 20. Kb1 Qb6 21. Nf5 axb3 22. a3 Qc5 23. Qe2 1-0

[Event "Titled Tuesday intern op 1st May"]
[Site "Chess.com INT"]
[Date "2018.05.01"]
[Round "4"]
[White "Tomb, Maroun"]
[Black "O'Brien, Matthew"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "2170"]
[BlackElo "2329"]
[PlyCount "38"]
[EventDate "2018.05.01"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Ne2 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 a6 7. Bg2 Qc7 8. 0-0 Be7 9. Nce2 0-0 10. b3 Nbd7 11. Bb2 Nc5 12. f3 e5 13. Nf5 Bxf5 14. exf5 d5 15. g4 h6 16. f4 e4 17. g5 hxg5 18. fxg5 Ng4 19. Qd4 Qxh2# 0-1

[Event "Titled Tuesday intern op 3rd April"]
[Site "Chess.com INT"]
[Date "2018.04.03"]
[Round "1"]
[White "O'Brien, Matthew"]
[Black "Akobian, Varuzhan"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2302"]
[BlackElo "2640"]
[PlyCount "76"]
[EventDate "2018.04.03"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. Bc4 d5 5. exd5 cxd5 6. Bb5+ Nc6 7. Nf3 Bg4 8. h3 Bxf3 9. Qxf3 e6 10. Bg5 Rc8 11. 0-0-0 Be7 12. Rhe1 0-0 13. g4 a6 14. Bxc6 Rxc6 15. h4 Qa5 16. h5 h6 17. Bd2 Rfc8 18. g5 hxg5 19. Rg1 g4 20. Rxg4 Nxg4 21. Qxg4 Bf6 22. Rg1 Kf8 23. h6 gxh6 24. Bxh6+ Ke7 25. Bd2 Rxc3 26. Bxc3 Rxc3 27. bxc3 Qxc3 28. Rd1 Qa1+ 29. Kd2 Qxa2 30. Qf4 Qc4 31. c3 b5 32. Qb8 Qc6 33. Qa7+ Kf8 34. Qb8+ Ke7 35. Qa7+ Ke8 36. Qb8+ Bd8 37. Rg1 Kd7 38. Rg8 Qc7 0-1

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2018.01.31"]
[Round "?"]
[White "Anderson, Aaron J"]
[Black "O'Brien, Matthew"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2154"]
[BlackElo "2078"]
[PlyCount "72"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Bg4 3. Bb2 e6 4. e3 Nd7 5. d4 Ngf6 6. Bd3 Bd6 7. Nbd2 e5 8. dxe5 Nxe5 9. Qe2 0-0 10. h3 Bh5 11. Bf5 Qe7 12. Rd1 a5 13. 0-0 a4 14. g4 Bg6 15. Bxg6 fxg6 16. Bxe5 Bxe5 17. c4 Bd6 18. cxd5 axb3 19. axb3 Nxd5 20. Qc4 c6 21. e4 Rf4 22. Rfe1 Qf8 23. Re2 Kh8 24. Nd4 Nc7 25. e5 Bc5 26. Ne4 Bb6 27. b4 h5 28. Qb3 Rd8 29. Nd6 Nd5 30. Ne4 Re8 31. Nc5 Bxc5 32. bxc5 hxg4 33. e6 Qf6 34. Red2 Rf8 35. Qg3 gxh3 36. f3 Kg8 0-1

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2018.01.31"]
[Round "?"]
[White "Chilson, Steven W"]
[Black "O'Brien, Matthew"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2144"]
[BlackElo "2078"]
[PlyCount "61"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 Nf6 5. Bg2 Be7 6. 0-0 0-0 7. Re1 d6 8. c3 Bd7 9. Nbd2 Qc7 10. a4 a6 11. Nc4 b5 12. Nxd6 Bxd6 13. axb5 axb5 14. Rxa8 Rxa8 15. e5 Nxe5 16. Nxe5 Ra1 17. Nxd7 Qxd7 18. Bf3 b4 19. cxb4 cxb4 20. Qc2 Qc7 21. Qxc7 Bxc7 22. Bd2 Rxe1+ 23. Bxe1 Be5 24. Bxb4 Bxb2 25. Bc6 Bd4 26. Kg2 Nd5 27. Bd6 g5 28. g4 Nf4+ 29. Bxf4 gxf4 30. Kf3 Kg7 31. Kxf4 1/2-1/2

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2018.01.31"]
[Round "?"]
[White "Ellis, James R"]
[Black "O'Brien, Matthew"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2143"]
[BlackElo "2078"]
[PlyCount "63"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. g3 Nf6 4. Nf3 dxc4 5. Bg2 a6 6. 0-0 Nc6 7. e3 Bd7 8. Qe2 Bd6 9. Qxc4 0-0 10. Rd1 Rb8 11. Nbd2 Qe7 12. b3 e5 13. Bb2 e4 14. Ne5 Nxe5 15. dxe5 Bxe5 16. Bxe5 Qxe5 17. Nxe4 Nxe4 18. Qxe4 Qxe4 19. Bxe4 Rfd8 20. Rd2 Kf8 21. Rad1 Ke7 22. f4 h6 23. Kf2 b6 24. Bd5 f6 25. Bc4 a5 26. e4 Be8 27. Ke3 Rxd2 28. Rxd2 c5 29. Bd5 b5 30. f5 a4 31. g4 Rb6 32. Kf4 1/2-1/2

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2018.01.31"]
[Round "?"]
[White "Gonzalez Gigato, Jose"]
[Black "O'Brien, Matthew"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2175"]
[BlackElo "2078"]
[PlyCount "64"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Na3 Bxa3 6. bxa3 Nbd7 7. Bb2 0-0 8. Rc1 c5 9. Ne5 Nxe5 10. Bxe5 Nd5 11. Rxc4 b6 12. Qc2 Bb7 13. Rh4 h6 14. 0-0 Qd7 15. Qa4 Qxa4 16. Rxa4 f6 17. Ba1 Kf7 18. Rb1 Rfc8 19. f4 Bc6 20. Rc4 Ne7 21. Bxc6 Rxc6 22. a4 Nf5 23. Rc2 Rb8 24. Kf2 g5 25. e4 Ne7 26. Ke3 Rd8 27. a5 gxf4+ 28. gxf4 Rcd6 29. Rb3 Nc6 30. axb6 axb6 31. Bc3 Rd3+ 32. Kf2 h5 1/2-1/2

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2018.01.31"]
[Round "?"]
[White "Kolojeski, Paul"]
[Black "O'Brien, Matthew"]
[Result "1/2-1/2"]
[ECO "A09"]
[WhiteElo "2154"]
[BlackElo "2078"]
[PlyCount "64"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 d4 3. g3 c5 4. Bg2 Nc6 5. 0-0 e5 6. d3 Nge7 7. a3 a5 8. Re1 Ng6 9. h4 Bd6 10. h5 Nf8 11. h6 g6 12. e3 Ne6 13. exd4 cxd4 14. Nbd2 0-0 15. Ne4 Be7 16. c5 f6 17. Qc2 Kh8 18. Bd2 a4 19. Rec1 g5 20. b4 axb3 21. Qxb3 f5 22. Nd6 g4 23. Nh2 Bg5 24. Bxg5 Nxg5 25. f4 gxf3 26. Nxf3 Ne6 27. Rc2 Qf6 28. Re1 f4 29. g4 Nxc5 30. Rxc5 Qxd6 31. Rexe5 Nxe5 32. Nxe5 Qxc5 1/2-1/2

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2018.01.31"]
[Round "?"]
[White "Nenneman, Daniel"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2124"]
[BlackElo "2078"]
[PlyCount "75"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Nf3 Bg4 6. h3 Bxf3 7. Qxf3 c6 8. Be3 e6 9. Bd3 Nbd7 10. 0-0-0 Bb4 11. Ne4 Nxe4 12. Bxe4 Nf6 13. Bg5 Be7 14. Bxf6 Bxf6 15. c3 a5 16. Kb1 a4 17. a3 Be7 18. g3 g6 19. Bc2 Qd6 20. Rhe1 Ra5 21. Qe3 Bf6 22. Re2 0-0 23. f4 Rd8 24. g4 c5 25. dxc5 Qxc5 26. Rxd8+ Bxd8 27. Qxc5 Rxc5 28. f5 gxf5 29. gxf5 e5 30. Bxa4 Kg7 31. Bc2 b6 32. Rd2 Be7 33. Rd7 Kf6 34. Rb7 Rc6 35. a4 Rd6 36. b4 Bd8 37. Kb2 h5 38. Kb3 1-0

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2018.01.31"]
[Round "?"]
[White "O'Brien, Matthew"]
[Black "Caliguire, John J Jr"]
[Result "0-1"]
[ECO "B03"]
[WhiteElo "2078"]
[BlackElo "2138"]
[PlyCount "90"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 c5 7. d5 g6 8. Nc3 Bg7 9. Bf4 0-0 10. Qd2 e6 11. d6 Nc6 12. Nf3 Nd7 13. Qe3 f6 14. 0-0-0 Ndxe5 15. Nxe5 Nxe5 16. Bxe5 fxe5 17. h4 b6 18. Bd3 Bb7 19. Be4 Bxe4 20. Nxe4 Qe8 21. Qe2 Rd8 22. h5 gxh5 23. Rxh5 Rf4 24. Rg5 h6 25. Rg4 Qf7 26. g3 Rf3 27. Rh4 Qf5 28. Rhh1 Bf6 29. Rd3 Rxd3 30. Qxd3 Kg7 31. Kc2 Be7 32. Rd1 Qh5 33. a3 a5 34. Kb3 Rd7 35. Ka2 Bd8 36. Re1 Qg4 37. Qc2 Rf7 38. Qa4 Rf8 39. Qd7+ Kg6 40. Kb3 Qf3+ 41. Ka4 Qf5 42. Kb5 Qg4 43. Re3 h5 44. Qc6 Qf5 45. d7 Qg4 0-1

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2018.01.31"]
[Round "?"]
[White "O'Brien, Matthew"]
[Black "Carter, Maurice H"]
[Result "1/2-1/2"]
[ECO "C90"]
[WhiteElo "2078"]
[BlackElo "2058"]
[PlyCount "68"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. a4 b4 9. a5 Rb8 10. Bc4 0-0 11. c3 h6 12. h3 Be6 13. Bxa6 Ra8 14. Qe2 d5 15. Bb5 Nxa5 16. Nxe5 Nxe4 17. Rxa5 Rxa5 18. Nc6 Qd6 19. Nxa5 Bh4 20. Rf1 Qb6 21. cxb4 Bxf2+ 22. Rxf2 Nxf2 23. Qxf2 Qxb5 24. Nc3 Qxb4 25. Nc6 Qd6 26. Nd4 c6 27. d3 Bd7 28. Qf4 Qg6 29. Kh2 Qxd3 30. Na4 Qe4 31. Qxe4 dxe4 32. Nc5 Rd8 33. Be3 Be8 34. Nxe4 Rb8 1/2-1/2

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2018.01.31"]
[Round "?"]
[White "O'Brien, Matthew"]
[Black "Chipkin, Leonard B"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "2078"]
[BlackElo "2125"]
[PlyCount "62"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 7. Qg4 f5 8. Qg3 Nc6 9. Nf3 cxd4 10. cxd4 Nge7 11. Be2 0-0 12. 0-0 Bd7 13. a4 Na5 14. Ba3 Qd8 15. Ng5 h6 16. Nh3 Rc8 17. Nf4 Rxc2 18. Bd3 Rc8 19. Bxe7 Qxe7 20. Ng6 Qb4 21. Nxf8 Kxf8 22. Rac1 Qxa4 23. Rxc8+ Bxc8 24. Qg6 Bd7 25. Be2 Nc6 26. Qh7 Ne7 27. Bh5 Be8 28. Qh8+ Ng8 29. Bxe8 Qxe8 30. Rc1 Qd8 31. g4 Kf7 1/2-1/2

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2018.01.31"]
[Round "?"]
[White "O'Brien, Matthew"]
[Black "Lee, Michael"]
[Result "1/2-1/2"]
[ECO "E54"]
[WhiteElo "2078"]
[BlackElo "2171"]
[PlyCount "56"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. Nf3 c5 7. 0-0 dxc4 8. Bxc4 b6 9. a3 Bxc3 10. bxc3 Bb7 11. Re1 Qc7 12. Bf1 Nc6 13. e4 Na5 14. Bd3 h6 15. e5 Nd5 16. Bc2 c4 17. Qe2 Nxc3 18. Qe3 Bxf3 19. Qxf3 Nd5 20. Qe4 f5 21. exf6 Nxf6 22. Qxe6+ Qf7 23. Bd2 Qxe6 24. Rxe6 Nb3 25. Bxb3 cxb3 26. Rb1 Rfd8 27. Re3 Rxd4 28. Bc3 Rd6 1/2-1/2

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2018.01.31"]
[Round "?"]
[White "O'Brien, Matthew"]
[Black "Losonsky, Michael"]
[Result "1/2-1/2"]
[ECO "E94"]
[WhiteElo "2078"]
[BlackElo "2200"]
[PlyCount "85"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Nf3 d6 6. Be2 e5 7. 0-0 Nbd7 8. Be3 exd4 9. Nxd4 Nc5 10. f3 b6 11. Qc2 a5 12. Rad1 Bb7 13. b3 Re8 14. Ndb5 Nfd7 15. a3 Na6 16. Qb1 f5 17. b4 axb4 18. axb4 fxe4 19. f4 Rf8 20. Qb3 Kh8 21. Nd5 Nf6 22. Bd4 Qd7 23. Nbxc7 Nxc7 24. Nxb6 Qe7 25. Nxa8 Bxa8 26. c5 Nfd5 27. Qc4 Rf7 28. c6 Nxf4 29. Bxg7+ Kxg7 30. b5 Qe5 31. Rxf4 Qxf4 32. Qd4+ Kg8 33. Rf1 Ne6 34. Rxf4 Nxd4 35. Rxe4 Nxc6 36. Bc4 Ne5 37. Bxf7+ Kxf7 38. Ra4 Bd5 39. Ra7+ Ke6 40. Rxh7 Be4 41. h4 Nd7 42. g4 d5 43. h5 1/2-1/2

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2018.01.31"]
[Round "?"]
[White "O'Brien, Matthew"]
[Black "Tateo, Ida"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2078"]
[BlackElo "2150"]
[PlyCount "80"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h4 e5 7. Nb3 Be7 8. Be2 Be6 9. f4 b5 10. g4 b4 11. Nd5 Nxd5 12. exd5 Bc8 13. g5 0-0 14. Be3 a5 15. a4 bxa3 16. Rxa3 a4 17. c4 g6 18. Qd2 Bf5 19. 0-0 Nd7 20. Rfa1 Re8 21. Rxa4 Rxa4 22. Rxa4 Qc8 23. Ra3 Bd8 24. Bf2 Bb6 25. Bf1 exf4 26. Bxb6 Nxb6 27. Na5 Re4 28. Qf2 Nd7 29. Bg2 Qe8 30. Nb7 Rxc4 31. Nxd6 Rc1+ 32. Kh2 Qe5 33. Ra8+ Nf8 34. Nxf5 gxf5 35. Bf3 Rb1 36. Qc5 Rxb2+ 37. Kh3 Rb8 38. Rxb8 Qxb8 39. d6 Ne6 40. Qd5 Qb2 1/2-1/2

[Event "USA BITNY-C email"]
[Site "ICCF email"]
[Date "2018.01.31"]
[Round "?"]
[White "Weiss, Lester P"]
[Black "O'Brien, Matthew"]
[Result "0-1"]
[ECO "B48"]
[WhiteElo "2154"]
[BlackElo "2078"]
[PlyCount "56"]
[EventDate "2018.??.??"]
[EventType "tourn (corr)"]
[EventRounds "13"]
[EventCountry "USA"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. 0-0-0 Be7 9. f3 b5 10. Kb1 h5 11. Nxc6 dxc6 12. Qf2 e5 13. h3 Be6 14. g3 a5 15. Bc5 0-0 16. Be2 Rfb8 17. Ka1 h4 18. gxh4 Nh5 19. Bd3 Nf4 20. Bxe7 Qxe7 21. Kb1 a4 22. Ne2 a3 23. b3 c5 24. Nxf4 exf4 25. e5 Qc7 26. Qe1 Rd8 27. Rc1 Kf8 28. Rg1 c4 0-1

[Event "Titled Tuesday intern op 3rd Oct"]
[Site "Chess.com INT"]
[Date "2017.10.03"]
[Round "3"]
[White "Balogh, David"]
[Black "O'Brien, Matthew"]
[Result "0-1"]
[ECO "D01"]
[WhiteElo "2200"]
[BlackElo "2320"]
[PlyCount "54"]
[EventDate "2017.10.03"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. Bxf6 gxf6 4. e3 c5 5. Nc3 Nc6 6. Bb5 e6 7. Qh5 Bd7 8. Nge2 f5 9. 0-0 Qf6 10. dxc5 Bxc5 11. Rad1 0-0-0 12. Ba4 Rhg8 13. Kh1 Rg4 14. h3 Rh4 15. Qf3 Ne5 16. Bxd7+ Rxd7 17. Qg3 Bd6 18. Nf4 Ng6 19. Nce2 Rd8 20. Qh2 Ne5 21. g3 Rh6 22. h4 Rg8 23. Ng1 Ng6 24. Nxg6 hxg6 25. Nf3 g5 26. Kg1 gxh4 27. Nxh4 Rxh4 0-1

[Event "Titled Tuesday intern op 3rd Oct"]
[Site "Chess.com INT"]
[Date "2017.10.03"]
[Round "8"]
[White "Laico, Joseph"]
[Black "O'Brien, Matthew"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2132"]
[BlackElo "2324"]
[PlyCount "138"]
[EventDate "2017.10.03"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 g6 4. Nf3 Bg7 5. Bb5+ Bd7 6. Qe2 Nc6 7. 0-0 Nd4 8. Nxd4 cxd4 9. Bxd7+ Qxd7 10. Nd1 Nf6 11. d3 0-0 12. f5 Rac8 13. Bg5 Qc6 14. Rc1 Rce8 15. Qf2 h6 16. Bxf6 Bxf6 17. Qg3 Kg7 18. h4 Qc5 19. Nf2 Qe5 20. Qg4 h5 21. Qh3 Qf4 22. Rcd1 Qxh4 23. Qf3 Be5 24. Nh3 g5 25. Qe2 Rh8 26. c3 Qg3 27. Qd2 f6 28. c4 Qh2+ 29. Kf2 Bg3+ 30. Ke2 Qxg2+ 31. Nf2 Bxf2 32. Rxf2 Qg4+ 33. Kf1 h4 34. Rg2 Qf3+ 35. Kg1 Rh5 36. Rf1 Qe3+ 37. Qxe3 dxe3 38. Re1 Rg8 39. Rxe3 Kf7 40. Rg4 Rc8 41. Kh2 a6 42. Rg2 b5 43. b3 bxc4 44. dxc4 Rc5 45. Kh3 Rh8 46. Rd2 a5 47. Rd4 Rhc8 48. Kg4 a4 49. Red3 axb3 50. axb3 Rb8 51. Rd5 Rc7 52. Ra5 Rcb7 53. Ra3 Rb4 54. Re3 R4b7 55. Rd3 Rc7 56. Re3 Rcb7 57. Rd3 Rc8 58. Re3 Rh8 59. Rd3 Ke8 60. Rd4 Kf7 61. Rd3 Rhb8 62. Rh3 Rb4 63. Rd3 Rc8 64. Re3 Rc5 65. Rd3 Re5 66. Rd4 d5 67. exd5 Re3 68. Ra7 Rg3+ 69. Kh5 Rb8 0-1

[Event "Titled Tuesday intern op 3rd Oct"]
[Site "Chess.com INT"]
[Date "2017.10.03"]
[Round "4"]
[White "O'Brien, Matthew"]
[Black "Matthiesen, Martin"]
[Result "1-0"]
[ECO "C88"]
[WhiteElo "2328"]
[BlackElo "2307"]
[PlyCount "71"]
[EventDate "2017.10.03"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. a4 b4 9. a5 d6 10. d3 h6 11. Nbd2 Be6 12. Bc4 Bxc4 13. Nxc4 Qb8 14. b3 Qb5 15. Bb2 Rad8 16. d4 exd4 17. Nxd4 Nxd4 18. Qxd4 Rfe8 19. Ne3 c5 20. Qd3 Qxd3 21. cxd3 Nd7 22. Nd5 Bf8 23. Nc7 Re7 24. Nxa6 Nf6 25. e5 Nd5 26. exd6 Rxe1+ 27. Rxe1 Bxd6 28. d4 cxd4 29. Bxd4 Nc3 30. Bb6 Rc8 31. g3 h5 32. Kg2 Na2 33. Rd1 Bf8 34. Nc7 Nc3 35. Ra1 Rb8 36. a6 1-0

[Event "Titled Tuesday intern op 3rd Oct"]
[Site "Chess.com INT"]
[Date "2017.10.03"]
[Round "1"]
[White "O'Brien, Matthew"]
[Black "Palachev, Petr"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2300"]
[BlackElo "2372"]
[PlyCount "92"]
[EventDate "2017.10.03"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h4 e5 7. Nb3 Be6 8. f4 exf4 9. Bxf4 Nc6 10. Qf3 Ne5 11. Qf2 Be7 12. 0-0-0 0-0 13. Bxe5 Ng4 14. Qg3 Nxe5 15. Nd4 Bf6 16. Nf5 Qa5 17. h5 Kh8 18. h6 g6 19. Rd5 Bxd5 20. Nxd5 Bg5+ 21. Kb1 gxf5 22. Bd3 Rg8 23. Rf1 f4 24. Qh3 Qd8 25. a3 Qd7 26. Qh5 Qe6 27. Qh1 Qxh6 28. Qg1 Rac8 29. Qd4 Qg7 30. Nxf4 Bxf4 31. Rxf4 Nxd3 32. Qxd3 Rc6 33. Qf3 Rf8 34. Rg4 Qe5 35. Rf4 Rc7 36. Rf5 Qd4 37. Rd5 Qg7 38. Rxd6 Re7 39. Rf6 Rxe4 40. Qxe4 Qxf6 41. Qxb7 Re8 42. Ka2 Qe6+ 43. b3 Qe4 44. Qc7 Qxg2 45. Qc3+ Kg8 46. Kb2 Qg7 0-1

[Event "Titled Tuesday intern op 3rd Oct"]
[Site "Chess.com INT"]
[Date "2017.10.03"]
[Round "2"]
[White "O'Brien, Matthew"]
[Black "Robin, Samy"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2314"]
[BlackElo "2292"]
[PlyCount "79"]
[EventDate "2017.10.03"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 e6 4. Be3 Ne7 5. h4 h6 6. h5 g5 7. Qd2 d5 8. 0-0-0 dxe4 9. Nxe4 Qd5 10. Nc3 Qa5 11. Nf3 Nbc6 12. Bc4 Bd7 13. Qe2 0-0-0 14. Bb3 Nf5 15. Ne4 Nxe3 16. fxe3 Nb4 17. Kb1 Bc6 18. Nc5 b6 19. Nd3 Nxd3 20. cxd3 Kb8 21. Rc1 Bb7 22. Rc2 Rd7 23. Rhc1 Rhd8 24. Nd2 Qf5 25. Ba4 Re7 26. Rf1 Qd5 27. Rf2 Ba6 28. Bb3 Qb7 29. Bc4 f5 30. Bxa6 Qxa6 31. Nc4 Qb5 32. Rc3 Kb7 33. Rb3 Qd5 34. Qd2 Ka8 35. Qb4 Bf8 36. Qa4 Qb7 37. Rc2 Red7 38. Na5 Qd5 39. Nc6 a5 40. Rb5 1-0

[Event "Titled Tuesday intern op 3rd Oct"]
[Site "Chess.com INT"]
[Date "2017.10.03"]
[Round "7"]
[White "O'Brien, Matthew"]
[Black "Zufic, Miroslav"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2320"]
[BlackElo "2378"]
[PlyCount "54"]
[EventDate "2017.10.03"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h4 e5 7. Nb3 Be6 8. f4 Qc7 9. f5 Bc4 10. Bxc4 Qxc4 11. Qe2 Qxe2+ 12. Kxe2 Nbd7 13. Be3 Rc8 14. a4 d5 15. exd5 Bb4 16. Rad1 Bxc3 17. bxc3 Rxc3 18. Na5 Rxc2+ 19. Kf3 0-0 20. Nxb7 Rb8 21. Nd6 Rb3 22. Rc1 Rxc1 23. Rxc1 h5 24. Kf2 Ng4+ 25. Kg1 Rxe3 26. Rc8+ Kh7 27. Nxf7 Re1# 0-1

[Event "Titled Tuesday intern op 3rd Oct"]
[Site "Chess.com INT"]
[Date "2017.10.03"]
[Round "5"]
[White "Rahman, Farhadur"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1965"]
[BlackElo "2321"]
[PlyCount "59"]
[EventDate "2017.10.03"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 g6 7. g4 Bg7 8. Be3 0-0 9. Qd2 Nc6 10. 0-0-0 Nxd4 11. Bxd4 b5 12. Be2 Be6 13. g5 Ne8 14. h4 b4 15. Nd5 Bxd5 16. exd5 Qa5 17. Bc4 Rc8 18. Bb3 Bxd4 19. Qxd4 Qc5 20. Qe4 Ng7 21. Qxe7 Rfe8 22. Qf6 Re2 23. Rd2 Rxd2 24. Kxd2 Nf5 25. Kc1 Qxf2 26. h5 Re8 27. Rd1 Qe2 28. hxg6 hxg6 29. a4 Ne3 30. Rh1 1-0

[Event "Titled Tuesday intern op 3rd Oct"]
[Site "Chess.com INT"]
[Date "2017.10.03"]
[Round "6"]
[White "Wang, Kevin"]
[Black "O'Brien, Matthew"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2027"]
[BlackElo "2326"]
[PlyCount "76"]
[EventDate "2017.10.03"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 Ngf6 5. 0-0 cxd4 6. Qxd4 e5 7. Qd3 h6 8. c4 Be7 9. Nc3 0-0 10. Bxd7 Bxd7 11. b3 Rc8 12. Rd1 a6 13. Be3 Bg4 14. Bd2 Qc7 15. h3 Bh5 16. Rac1 Rfd8 17. Nd5 Nxd5 18. cxd5 Qd7 19. Rxc8 Rxc8 20. Rc1 Bd8 21. Rxc8 Qxc8 22. Qc3 Qd7 23. Qd3 Bb6 24. Bb4 Kh7 25. Nd2 Bg6 26. Nc4 Bc7 27. Ne3 b5 28. Kh2 Bb6 29. f3 Qd8 30. a4 Ba7 31. Nd1 Qb6 32. axb5 Qg1+ 33. Kg3 axb5 34. Bc3 h5 35. Qd2 Bb6 36. Nf2 h4+ 37. Kxh4 Bxf2+ 38. Kg4 Qxg2# 0-1

[Event "Titled Tuesday intern Qual3 18th April"]
[Site "Chess.com INT"]
[Date "2017.04.18"]
[Round "5"]
[White "Bobula, Mateusz"]
[Black "O'Brien, Matthew"]
[Result "1/2-1/2"]
[ECO "A50"]
[WhiteElo "2352"]
[BlackElo "2303"]
[PlyCount "119"]
[EventDate "2017.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nc6 2. c4 e5 3. d5 Nce7 4. e4 Nf6 5. Nc3 Ng6 6. Bd3 Bc5 7. Nge2 d6 8. 0-0 0-0 9. Na4 Bb6 10. Nxb6 axb6 11. f3 Nh5 12. Be3 Nhf4 13. Qd2 Nxe2+ 14. Bxe2 f5 15. exf5 Bxf5 16. Bd3 Bxd3 17. Qxd3 Nf4 18. Qe4 Qf6 19. b3 Rf7 20. a4 h5 21. Bxf4 Qxf4 22. Qxf4 Rxf4 23. Rfe1 Rd4 24. Re4 Rd3 25. Rb1 Rf8 26. Rb2 Kh7 27. Kf2 g5 28. Re3 Rd4 29. Ke2 g4 30. g3 Kg6 31. Rb1 Kg5 32. Rf1 h4 33. gxh4+ Kxh4 34. fxg4 Rxf1 35. Kxf1 Kxg4 36. Ke2 Kf4 37. Rh3 Re4+ 38. Kd2 Rd4+ 39. Ke2 Re4+ 40. Kd2 Rd4+ 41. Kc2 Kf5 42. Rh7 Rg4 43. Rxc7 Rg2+ 44. Kd3 Rxh2 45. Rxb7 Rh3+ 46. Ke2 Rxb3 47. a5 Rb2+ 48. Kd1 Ke4 49. Rxb6 Ra2 50. a6 Kd3 51. Kc1 Kxc4 52. Rxd6 e4 53. Kb1 Ra5 54. Rh6 Rxd5 55. Kc2 Ra5 56. Kd2 Kb5 57. Rh5+ Kxa6 58. Rxa5+ Kxa5 59. Ke3 Ka6 60. Kxe4 1/2-1/2

[Event "Titled Tuesday intern Qual3 18th April"]
[Site "Chess.com INT"]
[Date "2017.04.18"]
[Round "6"]
[White "Bouget, Alexandre"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "A50"]
[WhiteElo "2211"]
[BlackElo "2296"]
[PlyCount "111"]
[EventDate "2017.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nc6 2. c4 e5 3. d5 Nce7 4. Nc3 Nf6 5. e4 Ng6 6. h4 h5 7. Bg5 Bb4 8. Be2 Bxc3+ 9. bxc3 Qe7 10. Bxh5 Qa3 11. Bxg6 fxg6 12. Bxf6 Qxc3+ 13. Kf1 Qxc4+ 14. Ne2 gxf6 15. f3 b6 16. Rc1 Qxa2 17. Rxc7 Ba6 18. Rc2 Qa3 19. Kf2 Kf7 20. Rc7 Qd6 21. Qc2 Rac8 22. Rc1 Ke7 23. Ng3 Rxc7 24. Qxc7 Rc8 25. Qxd6+ Kxd6 26. Ra1 Bd3 27. Rxa7 Rh8 28. h5 gxh5 29. Nf5+ Kc5 30. Rc7+ Kb4 31. Rxd7 h4 32. Rd6 b5 33. Rxf6 h3 34. gxh3 Rxh3 35. Ke3 Bc4 36. Re6 Rh1 37. Rxe5 Kc3 38. Re8 b4 39. d6 b3 40. d7 b2 41. d8Q Re1+ 42. Kf4 b1Q 43. Qf6+ Kc2 44. Ne3+ Rxe3 45. Kxe3 Qc1+ 46. Kf2 Qd2+ 47. Kg3 Qe1+ 48. Kf4 Qd2+ 49. Ke5 Qc3+ 50. Kf5 Qxf3+ 51. Kg6 Qg4+ 52. Kh6 Qh3+ 53. Kg7 Qg4+ 54. Kf8 Qh5 55. e5 Qh7 56. e6 1-0

[Event "Titled Tuesday intern Qual3 18th April"]
[Site "Chess.com INT"]
[Date "2017.04.18"]
[Round "8"]
[White "D'Innocente, Stefano"]
[Black "O'Brien, Matthew"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "2261"]
[BlackElo "2303"]
[PlyCount "74"]
[EventDate "2017.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Bb7 7. 0-0 d6 8. a4 b4 9. Na2 Nf6 10. Re1 d5 11. e5 Ne4 12. Be3 Nd7 13. f4 Bc5 14. c3 bxc3 15. Nxc3 0-0 16. Bxe4 dxe4 17. Qd2 Nb6 18. b3 Bb4 19. Nc2 Qxd2 20. Bxd2 Bxc3 21. Bxc3 Rac8 22. Bd4 Nd5 23. Ne3 Nxf4 24. Nc4 Bd5 25. Nb6 Rc2 26. Nxd5 exd5 27. Kh1 Rfc8 28. b4 Ne6 29. Bg1 h5 30. b5 axb5 31. axb5 Rb8 32. b6 Nf4 33. g3 Nd3 34. Rf1 Nxe5 35. Rac1 Re2 36. Rc7 Nf3 37. b7 Kh7 0-1

[Event "Titled Tuesday intern Qual3 18th April"]
[Site "Chess.com INT"]
[Date "2017.04.18"]
[Round "3"]
[White "Jegorovas, Aleksandras"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2322"]
[BlackElo "2307"]
[PlyCount "71"]
[EventDate "2017.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nc6 2. g3 e5 3. d5 Nce7 4. Nc3 Nf6 5. e4 Ng6 6. Bg2 Bc5 7. h4 h5 8. Qe2 d6 9. Be3 Bxe3 10. Qxe3 0-0 11. Nf3 c6 12. 0-0-0 c5 13. Ng5 b5 14. f4 b4 15. Ne2 Bg4 16. f5 Ne7 17. Bf3 Qa5 18. Kb1 c4 19. Bxg4 Nxg4 20. Qf3 c3 21. f6 Nxf6 22. g4 hxg4 23. Qg3 cxb2 24. h5 Qb5 25. Rh2 Rac8 26. h6 gxh6 27. Qh4 Qc4 28. Rd2 Ng6 29. Qxh6 g3 30. Nh7 Ng4 31. Nf6+ Nxf6 32. Nxg3 Qc5 33. Nf5 Qg1+ 34. Kxb2 Rxc2+ 35. Rxc2 Qxh2 36. Qg7# 1-0

[Event "Titled Tuesday intern Qual3 18th April"]
[Site "Chess.com INT"]
[Date "2017.04.18"]
[Round "10"]
[White "Matinian, Nikita"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B43"]
[WhiteElo "2491"]
[BlackElo "2308"]
[PlyCount "113"]
[EventDate "2017.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Bb7 7. 0-0 d6 8. Re1 Nd7 9. a4 b4 10. Nd5 Ngf6 11. Nxb4 Qc7 12. c4 g6 13. a5 Bg7 14. Nbc2 0-0 15. b3 Nc5 16. Bb2 Ncxe4 17. Bf1 d5 18. Ne3 Nxf2 19. Kxf2 Qxh2 20. Bd3 dxc4 21. bxc4 Rfd8 22. Nf3 Qf4 23. Be5 Ne4+ 24. Bxe4 Bxe5 25. Bxb7 Rxd1 26. Raxd1 Rb8 27. Bxa6 Rb2+ 28. Re2 Qg3+ 29. Kf1 Rxe2 30. Kxe2 Bf4 31. Bb7 Bxe3 32. Kxe3 Qxg2 33. a6 Qa2 34. c5 Qa5 35. c6 Kg7 36. Rd7 Qb6+ 37. Kd3 Qb3+ 38. Ke2 Qb2+ 39. Nd2 Qb5+ 40. Kd1 Qa4+ 41. Ke1 Qa1+ 42. Kf2 Qa5 43. c7 Qf5+ 44. Ke1 Qe5+ 45. Kd1 Qa1+ 46. Ke2 Qe5+ 47. Kf3 Qf5+ 48. Kg2 Qg5+ 49. Kf1 Qf5+ 50. Nf3 Qb5+ 51. Kg2 Qxd7 52. c8Q Qa4 53. Qc3+ Kg8 54. Qd4 Qa2+ 55. Kg3 h6 56. a7 Kh7 57. a8Q 1-0

[Event "Titled Tuesday intern Qual3 18th April"]
[Site "Chess.com INT"]
[Date "2017.04.18"]
[Round "7"]
[White "O'Brien, Matthew"]
[Black "Atanasov, Anthony"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "2297"]
[BlackElo "1594"]
[PlyCount "57"]
[EventDate "2017.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Bc5 5. c3 Nxe4 6. Qe2 Nxf2 7. d4 e4 8. Rxf2 0-0 9. Qxe4 d5 10. Qh4 Qxh4 11. Nxh4 Nxd4 12. cxd4 Bxd4 13. Nf3 Bxf2+ 14. Kxf2 c6 15. Bd3 Bg4 16. Ne5 Be6 17. Nc3 f6 18. Nf3 Kf7 19. Bf4 g5 20. Be3 h5 21. h4 g4 22. Ng1 f5 23. Nge2 b6 24. Nf4 c5 25. Ncxd5 Rad8 26. Nxe6 Kxe6 27. Nf4+ Ke5 28. Bd2 Kd4 29. Bc3# 1-0

[Event "Titled Tuesday intern Qual3 18th April"]
[Site "Chess.com INT"]
[Date "2017.04.18"]
[Round "2"]
[White "O'Brien, Matthew"]
[Black "Mikrut, Dariusz"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2311"]
[BlackElo "2406"]
[PlyCount "61"]
[EventDate "2017.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. f3 Be6 9. Qd2 0-0 10. 0-0-0 a5 11. Qe1 Qc8 12. Bb5 Nbd7 13. g4 Qc7 14. g5 Nh5 15. Kb1 Nb6 16. Bxb6 Qxb6 17. a4 Nf4 18. h4 Rac8 19. Ne2 Nxe2 20. Qxe2 Rfd8 21. Qd2 Ra8 22. g6 fxg6 23. h5 g5 24. h6 g6 25. Qe2 Qc7 26. Rd3 Rac8 27. Rc3 Qb6 28. Rxc8 Rxc8 29. Qd2 Rb8 30. Qxa5 Rc8 31. Qxb6 1-0

[Event "Titled Tuesday intern Qual3 18th April"]
[Site "Chess.com INT"]
[Date "2017.04.18"]
[Round "9"]
[White "O'Brien, Matthew"]
[Black "Molchanov, Alexey"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2314"]
[BlackElo "2334"]
[PlyCount "153"]
[EventDate "2017.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Nf6 4. e5 Ne4 5. d4 Nxc3 6. bxc3 Bf5 7. Bd3 Bxd3 8. Qxd3 e6 9. Rb1 b5 10. 0-0 Nd7 11. Ng5 h6 12. Nxe6 fxe6 13. Qg6+ Ke7 14. Ba3+ c5 15. dxc5 Qe8 16. c6+ Kd8 17. Qxe8+ Kxe8 18. cxd7+ Kxd7 19. Bxf8 Rhxf8 20. Rxb5 Rfc8 21. Rb7+ Rc7 22. Rxc7+ Kxc7 23. Rb1 Rf8 24. Rb4 g5 25. g3 Rf3 26. c4 Kc6 27. cxd5+ Kxd5 28. Rb5+ Kd4 29. Ra5 Rc3 30. Rxa7 Kxe5 31. a4 Rxc2 32. a5 Ra2 33. Kg2 g4 34. Rg7 Kf5 35. Rh7 Rxa5 36. Rxh6 Ra1 37. Rh5+ Kf6 38. h3 gxh3+ 39. Rxh3 Kg5 40. Rh4 e5 41. Rb4 Kf5 42. Rb3 Ra5 43. Rb8 Ra2 44. Rf8+ Kg5 45. Re8 Kf5 46. Rf8+ Ke6 47. Kf3 Ra4 48. g4 Ke7 49. Rf5 Ke6 50. Kg3 Ra8 51. Rf3 Rh8 52. g5 Rh1 53. Rf6+ Ke7 54. Kg4 Rh2 55. f3 Rh1 56. Kf5 Rg1 57. Re6+ Kf7 58. Rxe5 Ra1 59. f4 Ra7 60. g6+ Kg7 61. Kg5 Ra1 62. Re7+ Kf8 63. Rf7+ Kg8 64. Rc7 Ra6 65. f5 Ra5 66. Kf6 Ra6+ 67. Kg5 Ra5 68. Kh6 Ra8 69. f6 Rb8 70. Rd7 Ra8 71. Re7 Rb8 72. f7+ Kf8 73. Re8+ Rxe8 74. fxe8Q+ Kxe8 75. Kh7 Kf8 76. g7+ Ke7 77. g8Q 1-0

[Event "Titled Tuesday intern Qual3 18th April"]
[Site "Chess.com INT"]
[Date "2017.04.18"]
[Round "1"]
[White "O'Brien, Matthew"]
[Black "Shimanov, Aleksandr"]
[Result "0-1"]
[ECO "B15"]
[WhiteElo "2300"]
[BlackElo "2650"]
[PlyCount "66"]
[EventDate "2017.04.18"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Be2 d5 5. e5 f6 6. f4 Nh6 7. Nf3 Bg4 8. Be3 Nf5 9. Bf2 0-0 10. Qd2 Nd7 11. h3 Bxf3 12. Bxf3 fxe5 13. g4 Nxd4 14. Bxd4 exd4 15. Ne2 e5 16. 0-0-0 e4 17. Bg2 c5 18. Nc3 Nb6 19. Nxe4 dxe4 20. Bxe4 Qd7 21. f5 gxf5 22. Bxf5 Qd6 23. Kb1 Rae8 24. Qd3 c4 25. Bxh7+ Kh8 26. Qg6 Re6 27. Qg5 Kxh7 28. h4 Qe5 29. Qc1 Rf2 30. Rde1 Re2 31. Rxe2 Qxe2 32. Qg5 Qe4 33. Qh5+ Rh6 0-1

[Event "Titled Tuesday intern Qual1 4th April"]
[Site "Chess.com INT"]
[Date "2017.04.04"]
[Round "1"]
[White "Savchenko, Boris"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B81"]
[WhiteElo "2636"]
[BlackElo "2300"]
[PlyCount "107"]
[EventDate "2017.04.04"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 h6 7. Rg1 Nc6 8. Be3 a6 9. h4 e5 10. Nxc6 bxc6 11. g5 Nd7 12. g6 f6 13. Qd3 Nc5 14. Bxc5 dxc5 15. Qc4 Qe7 16. Bh3 Bxh3 17. 0-0-0 Be6 18. Qa4 Qb7 19. f4 Be7 20. f5 Bd7 21. Qc4 Rf8 22. Rg3 0-0-0 23. Rgd3 Kc7 24. a3 Qb6 25. R1d2 a5 26. Kb1 Bc8 27. Rxd8 Bxd8 28. b3 Be7 29. Na4 Qb5 30. Qc3 c4 31. Ka2 cxb3+ 32. cxb3 Rd8 33. Rc2 Rd3 34. Qb2 Ba6 35. Nc3 Qb6 36. Nd5+ Rxd5 37. exd5 Bc5 38. Qc3 Kd6 39. dxc6 Bd4 40. Qf3 a4 41. b4 Bb5 42. c7 Bd7 43. c8N+ Bxc8 44. Rxc8 Kd7 45. Rc4 Qb5 46. Rc2 Kd6 47. Qe4 Qd5+ 48. Qxd5+ Kxd5 49. Rc7 e4 50. Rxg7 e3 51. Rd7+ Ke4 52. g7 e2 53. g8Q e1Q 54. Qd5+ 1-0

[Event "Titled Tuesday intern op 7th March"]
[Site "Chess.com INT"]
[Date "2017.03.07"]
[Round "7"]
[White "O'Brien, Matthew"]
[Black "Foisor, Sabina Francesca"]
[Result "1/2-1/2"]
[ECO "D01"]
[WhiteElo "2336"]
[BlackElo "2272"]
[PlyCount "122"]
[EventDate "2017.03.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nc3 d5 2. d4 Nf6 3. Bg5 h6 4. Bxf6 exf6 5. Qd2 Bb4 6. a3 Bxc3 7. Qxc3 0-0 8. 0-0-0 Bf5 9. f3 Qe7 10. g4 Bg6 11. Nh3 Re8 12. Nf4 c6 13. h4 Qe3+ 14. Qxe3 Rxe3 15. Kd2 Re7 16. e3 Nd7 17. Bd3 Bxd3 18. Kxd3 Rae8 19. Rde1 g6 20. Rhg1 Kg7 21. e4 dxe4+ 22. fxe4 Nf8 23. d5 cxd5 24. Nxd5 Re5 25. c4 Nd7 26. Kd4 Nb8 27. b4 Nc6+ 28. Kd3 a6 29. a4 b5 30. axb5 axb5 31. cxb5 Ne7 32. Nxe7 R8xe7 33. b6 Rb7 34. Rc1 Rxb6 35. Rc4 Rd6+ 36. Rd4 Rc6 37. Rb1 Rb5 38. Rd5 Rb8 39. b5 Rcb6 40. Kc4 Kf8 41. Kc5 Ke7 42. e5 fxe5 43. Rxe5+ Re6 44. Rxe6+ Kxe6 45. Kc6 f5 46. gxf5+ Kxf5 47. b6 g5 48. hxg5 hxg5 49. Kc7 Rg8 50. b7 g4 51. Rd1 g3 52. Rd8 Rg7+ 53. Rd7 Rg8 54. Rd8 Rxd8 55. Kxd8 g2 56. b8Q g1Q 57. Qc8+ Kf4 58. Qc7+ Kf3 59. Qf7+ Ke2 60. Qe6+ Qe3 61. Qxe3+ Kxe3 1/2-1/2

[Event "Titled Tuesday intern op 7th March"]
[Site "Chess.com INT"]
[Date "2017.03.07"]
[Round "3"]
[White "O'Brien, Matthew"]
[Black "Gozzoli, Yannick"]
[Result "0-1"]
[ECO "B03"]
[WhiteElo "2336"]
[BlackElo "2586"]
[PlyCount "46"]
[EventDate "2017.03.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Bc4 Nb6 5. Bb3 Bf5 6. Nf3 e6 7. 0-0 Nc6 8. exd6 Bxd6 9. c4 Be7 10. d5 Na5 11. Nc3 0-0 12. Qe2 exd5 13. cxd5 Nxb3 14. axb3 Re8 15. Be3 Nxd5 16. Nxd5 Qxd5 17. Qc4 Qxc4 18. bxc4 a5 19. Nd4 Bd3 20. Rfc1 Bf6 21. Ra3 Bg6 22. c5 Rad8 23. Rd1 Bxd4 0-1

[Event "Titled Tuesday intern op 7th March"]
[Site "Chess.com INT"]
[Date "2017.03.07"]
[Round "5"]
[White "O'Brien, Matthew"]
[Black "Santos Latasa, Jaime"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2339"]
[BlackElo "2565"]
[PlyCount "68"]
[EventDate "2017.03.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. 0-0 a6 5. Bxd7+ Bxd7 6. d4 cxd4 7. Qxd4 Rc8 8. Nc3 e5 9. Qd3 h6 10. Be3 Nf6 11. Rfd1 Be7 12. Nd2 b5 13. a4 b4 14. Na2 a5 15. c3 Bxa4 16. b3 Bc6 17. cxb4 0-0 18. bxa5 Qxa5 19. Nc3 Qb4 20. Nc4 Qxb3 21. Ra3 Bxe4 22. Nxe4 Qxd3 23. Raxd3 Nxe4 24. Nb6 Rcd8 25. Nd5 Bg5 26. f3 Bxe3+ 27. Rxe3 Nf6 28. Ne7+ Kh7 29. Nc6 Rd7 30. Nb4 Re8 31. Red3 Re6 32. h3 h5 33. Nc6 d5 34. Re1 Rxc6 0-1

[Event "Titled Tuesday intern op 7th March"]
[Site "Chess.com INT"]
[Date "2017.03.07"]
[Round "2"]
[White "Sochacki, Wojtek"]
[Black "O'Brien, Matthew"]
[Result "1/2-1/2"]
[ECO "E91"]
[WhiteElo "2339"]
[BlackElo "2338"]
[PlyCount "106"]
[EventDate "2017.03.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 c5 7. d5 e5 8. dxe6 Bxe6 9. 0-0 Nc6 10. h3 Qb6 11. b3 Nxe4 12. Nxe4 Bxa1 13. Bh6 Bg7 14. Bxg7 Kxg7 15. Qa1+ Nd4 16. Nxd4 cxd4 17. Rd1 f6 18. Rxd4 Rad8 19. Qd1 Rf7 20. h4 Rfd7 21. Nc3 Qc5 22. Bf3 a6 23. h5 Qe5 24. Re4 Qxc3 25. Rxe6 b5 26. Qe2 Qc1+ 27. Kh2 Rf7 28. Bd5 Qg5 29. hxg6 hxg6 30. Re8 Rxe8 31. Qxe8 Qf4+ 32. Kg1 Qc1+ 33. Kh2 Qf4+ 34. Kg1 Qc1+ 35. Kh2 Qf4+ 36. Kh3 Qh6+ 37. Kg3 Qg5+ 38. Kf3 Qf5+ 39. Kg3 Qg5+ 40. Kh3 Qf5+ 41. Kh2 Qf4+ 42. Kh3 Qf5+ 43. g4 Qd3+ 44. f3 Qf1+ 45. Kg3 Qg1+ 46. Kh3 Qh1+ 47. Kg3 Qg1+ 48. Kf4 Qd4+ 49. Kg3 Qg1+ 50. Kh3 Qh1+ 51. Kg3 Qg1+ 52. Kf4 Qd4+ 53. Kg3 Qg1+ 1/2-1/2

[Event "Titled Tuesday intern op 7th March"]
[Site "Chess.com INT"]
[Date "2017.03.07"]
[Round "1"]
[White "Valderrama Quiceno, Esteban Alberto"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "2428"]
[BlackElo "2338"]
[PlyCount "67"]
[EventDate "2017.03.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. g3 Nc6 3. Bg2 g6 4. Ne2 Bg7 5. 0-0 Nf6 6. c3 0-0 7. d4 cxd4 8. cxd4 d5 9. e5 Ne4 10. f3 Nf6 11. exf6 Bxf6 12. Nbc3 e6 13. Be3 b6 14. Qd2 Ba6 15. Rfe1 Qd7 16. Bg5 Bg7 17. Bh6 Rac8 18. Bxg7 Kxg7 19. h4 h5 20. Nf4 Ne7 21. Bh3 Qd6 22. Re5 Rc4 23. Bf1 Nf5 24. Bxc4 dxc4 25. Ne4 Qxd4+ 26. Qxd4 Nxd4 27. Kf2 Rc8 28. Nc3 Bb7 29. Ne4 f6 30. Nxe6+ Kf7 31. Nd6+ Ke7 32. Nxc8+ Bxc8 33. Nxd4+ fxe5 34. Nc6+ 1-0

[Event "Titled Tuesday intern op 7th Febr"]
[Site "Chess.com INT"]
[Date "2017.02.07"]
[Round "1"]
[White "Ibarra Jerez, Jose Carlos"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B96"]
[WhiteElo "2569"]
[BlackElo "2324"]
[PlyCount "137"]
[EventDate "2017.02.07"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Bd7 8. Qf3 Nc6 9. 0-0-0 Qa5 10. Bxf6 gxf6 11. Nb3 Qc7 12. f5 0-0-0 13. Qh5 Be8 14. Kb1 Kb8 15. g3 h6 16. Bh3 Rg8 17. Qe2 Bd7 18. Rhf1 Be7 19. Qh5 Rdf8 20. Ne2 Rg5 21. Qf3 Ne5 22. Qe3 Nc4 23. Qc3 e5 24. Qf3 d5 25. Rxd5 Bc6 26. Rd3 Qb6 27. Nc3 a5 28. a4 Bb4 29. Nd5 Bxd5 30. Rxd5 Rc8 31. Rb5 Qc6 32. Qd3 Ne3 33. Qxe3 Qxc2+ 34. Ka2 Rc3 35. Qd2 Qxb3+ 36. Kb1 Rd3 37. Qc1 Rc3 38. Qd1 Qxd1+ 39. Rxd1 Rc7 40. Bf1 Rg8 41. b3 Rgc8 42. Bc4 Ka7 43. Rdd5 Re8 44. Kc2 Ree7 45. Rd8 Red7 46. Rxd7 Rxd7 47. Bd5 Rc7+ 48. Kd1 b6 49. Ke2 Rc2+ 50. Kf3 Rxh2 51. Bxf7 Rd2 52. Bc4 Rc2 53. Rd5 Rd2 54. Bd3 Kb7 55. Kg4 Kc6 56. Kh5 Rf2 57. Bb5+ Kc7 58. Kg6 Rg2 59. Kxf6 Rxg3 60. Kxe5 h5 61. Ke6 Rf3 62. Rd7+ Kc8 63. Rh7 Re3 64. e5 Bc3 65. f6 Rxe5+ 66. Kd6 Re1 67. Rh8+ Kb7 68. Bc6+ Ka7 69. Ra8# 1-0

[Event "Titled Tuesday intern op 7th Febr"]
[Site "Chess.com INT"]
[Date "2017.02.07"]
[Round "4"]
[White "Norowitz, Yaacov"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "E63"]
[WhiteElo "2429"]
[BlackElo "2321"]
[PlyCount "141"]
[EventDate "2017.02.07"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. g3 Nc6 6. Bg2 d6 7. 0-0 a6 8. b3 Bd7 9. Bb2 e5 10. e3 Re8 11. Qc2 Bf5 12. Qd2 Ne4 13. Nxe4 Bxe4 14. Rad1 exd4 15. Nxd4 Bxg2 16. Kxg2 Nxd4 17. Bxd4 Bxd4 18. Qxd4 Qe7 19. Kg1 Qe5 20. Qd5 Rab8 21. Rd2 Qc3 22. Rfd1 Re5 23. Qd4 Qxd4 24. Rxd4 Rbe8 25. Kg2 h5 26. h4 Kg7 27. Rd5 f5 28. Kf3 R8e7 29. Ke2 Kf6 30. R5d4 Re8 31. R1d2 Ra8 32. Kf3 a5 33. a3 b6 34. R4d3 Ra7 35. Rd5 Ra8 36. Rxe5 Kxe5 37. Rd5+ Kf6 38. Kf4 Re8 39. Rd4 Re5 40. Kf3 Re8 41. Rd1 Re5 42. Ke2 Re8 43. Kd3 Re4 44. Rc1 Ke7 45. b4 axb4 46. axb4 Kd7 47. b5 Re8 48. Ra1 Rc8 49. Kd4 Ke6 50. e4 fxe4 51. Kxe4 Rf8 52. f3 Rf7 53. Ra8 Kf6 54. Re8 Rd7 55. Kd5 Rf7 56. Kc6 g5 57. hxg5+ Kxg5 58. Re3 h4 59. gxh4+ Kxh4 60. Re8 Kg3 61. Rc8 Rf4 62. Rxc7 Rxc4+ 63. Kxd6 Rb4 64. Kc6 Kxf3 65. Re7 Kf4 66. Kxb6 Kf5 67. Re1 Kf4 68. Kc5 Rb2 69. Rc1 Ke4 70. b6 Ke5 71. Kc6 1-0

[Event "Titled Tuesday intern op 7th Febr"]
[Site "Chess.com INT"]
[Date "2017.02.07"]
[Round "6"]
[White "O'Brien, Matthew"]
[Black "Alice, Mateus Felizardo Vi"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2332"]
[BlackElo "2124"]
[PlyCount "74"]
[EventDate "2017.02.07"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 Ngf6 6. 0-0 a6 7. Bxd7+ Bxd7 8. c4 Bc6 9. Nc3 e6 10. Bg5 Be7 11. Rad1 Rc8 12. Rfe1 0-0 13. Bxf6 Bxf6 14. Qxd6 Bxc3 15. bxc3 Qa5 16. Nd4 Qxa2 17. Nxc6 Rxc6 18. Qb4 Qxc4 19. Qxb7 Qxc3 20. h3 a5 21. Re3 Qc2 22. Red3 g6 23. R1d2 Qc1+ 24. Kh2 a4 25. Rd8 Qc4 26. Rxf8+ Kxf8 27. f3 Kg7 28. Rd7 e5 29. Rxf7+ Qxf7 30. Qxc6 a3 31. Qa6 a2 32. Kh1 Qc7 33. Qxa2 Qc1+ 34. Kh2 Qf4+ 35. Kh1 Qc1+ 36. Kh2 Qf4+ 37. Kh1 Qc1+ 1/2-1/2

[Event "Titled Tuesday intern op 7th Febr"]
[Site "Chess.com INT"]
[Date "2017.02.07"]
[Round "8"]
[White "O'Brien, Matthew"]
[Black "Atanasov, Anthony"]
[Result "1-0"]
[ECO "C60"]
[WhiteElo "2321"]
[BlackElo "1604"]
[PlyCount "73"]
[EventDate "2017.02.07"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 g6 5. 0-0 Nge7 6. c3 Bg7 7. d4 d6 8. d5 b5 9. Bc2 Na5 10. b4 Nc4 11. Nbd2 Nb6 12. a4 Bd7 13. a5 Nbc8 14. c4 0-0 15. Bd3 f5 16. Ng5 Na7 17. Re1 h6 18. Ne6 Bxe6 19. dxe6 Qc8 20. cxb5 axb5 21. Bc2 Qxe6 22. Bb3 d5 23. exd5 Qd6 24. Bb2 Rad8 25. Nf3 Kh7 26. Nxe5 Nxd5 27. Rc1 Qxb4 28. Qf3 Nf4 29. Ba3 Qxa5 30. Bxf8 Rxf8 31. Qxf4 g5 32. Qf3 Qb4 33. Be6 f4 34. Qd3+ Kh8 35. Ng6+ Kh7 36. Nxf8+ Kh8 37. Qh7# 1-0

[Event "Titled Tuesday intern op 7th Febr"]
[Site "Chess.com INT"]
[Date "2017.02.07"]
[Round "5"]
[White "O'Brien, Matthew"]
[Black "Fernandez, Gumersindo"]
[Result "1-0"]
[ECO "C90"]
[WhiteElo "2330"]
[BlackElo "2339"]
[PlyCount "97"]
[EventDate "2017.02.07"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. a4 Bg4 9. c3 b4 10. a5 0-0 11. h3 Bxf3 12. Qxf3 bxc3 13. bxc3 Rb8 14. Bc4 Qc8 15. d3 Na7 16. Qd1 Nb5 17. Qc2 c6 18. Nd2 d5 19. Bb3 Bd6 20. Nf1 d4 21. Bg5 Nxc3 22. Bxf6 gxf6 23. Ng3 Kh8 24. Nf5 Qd7 25. Bc4 Nb5 26. Qd2 Rg8 27. Qh6 Rg6 28. Qh5 Rbg8 29. g3 Bb4 30. Reb1 Bc3 31. Ra2 Qc7 32. Nh6 Rf8 33. Nf5 Bxa5 34. Rf1 Bb4 35. Rxa6 Nd6 36. Nxd6 Qxd6 37. Bd5 Kg7 38. Rxc6 Qd7 39. h4 Rc8 40. Rfc1 Rxc6 41. Rxc6 Qa7 42. Qf3 Qa1+ 43. Kg2 Qa5 44. h5 Rh6 45. Qg4+ Kf8 46. Qc8+ Kg7 47. Qg4+ Kf8 48. Rc8+ Ke7 49. Qg8 1-0

[Event "Titled Tuesday intern op 7th Febr"]
[Site "Chess.com INT"]
[Date "2017.02.07"]
[Round "9"]
[White "O'Brien, Matthew"]
[Black "Wieczorek, Oskar"]
[Result "0-1"]
[ECO "E73"]
[WhiteElo "2317"]
[BlackElo "2468"]
[PlyCount "60"]
[EventDate "2017.02.07"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 Nf6 5. Be2 0-0 6. g4 c5 7. d5 e5 8. h4 Ne8 9. h5 Nd7 10. h6 Bh8 11. Be3 f6 12. Qd2 a6 13. f3 Rb8 14. Nh3 Nc7 15. a4 Rf7 16. Nf2 Nf8 17. Nd3 f5 18. gxf5 gxf5 19. Rg1+ Ng6 20. exf5 Bxf5 21. Ne4 Bxe4 22. fxe4 Qh4+ 23. Nf2 Rbf8 24. 0-0-0 Rxf2 25. Qe1 Qh2 26. Bxf2 Rxf2 27. Bd3 Bf6 28. Kb1 Rxb2+ 29. Kc1 Ra2 30. Bb1 Qb2# 0-1

[Event "Titled Tuesday intern op 7th Febr"]
[Site "Chess.com INT"]
[Date "2017.02.07"]
[Round "7"]
[White "Tagelsir, Abubaker"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2219"]
[BlackElo "2320"]
[PlyCount "55"]
[EventDate "2017.02.07"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 g6 4. Nf3 Bg7 5. Bb5+ Nc6 6. 0-0 Nf6 7. d3 0-0 8. Bxc6 bxc6 9. Qe1 c4 10. d4 Qb6 11. Kh1 Bg4 12. e5 Ne8 13. Ng5 h6 14. Nge4 Bf5 15. Qe2 Rd8 16. Rb1 Nc7 17. Ng3 Be6 18. Be3 Nd5 19. f5 gxf5 20. Nxd5 Bxd5 21. Nxf5 Kh7 22. Nxg7 Kxg7 23. Qg4+ Kh7 24. Qf5+ Kg7 25. Bxh6+ Kxh6 26. Qf4+ Kg7 27. Qg5+ Kh7 28. Rf4 1-0

[Event "Titled Tuesday intern op 6th Dec 10am"]
[Site "Chess.com INT"]
[Date "2016.12.06"]
[Round "9"]
[White "Andrejkin, Dmitry"]
[Black "O'Brien, Matthew"]
[Result "1/2-1/2"]
[ECO "B80"]
[WhiteElo "2182"]
[BlackElo "2290"]
[PlyCount "82"]
[EventDate "2016.12.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e6 7. Be3 b5 8. a3 Nbd7 9. Qd2 Bb7 10. 0-0-0 d5 11. exd5 Nxd5 12. Nxd5 Bxd5 13. Kb1 Qc7 14. Bf4 Bd6 15. Bxd6 Qxd6 16. Nf5 Qe5 17. Nd4 0-0 18. g4 Rfb8 19. h4 Nb6 20. h5 Nc4 21. Bxc4 bxc4 22. g5 Rb6 23. g6 fxg6 24. hxg6 hxg6 25. Ka1 Rab8 26. Rb1 R8b7 27. Rh4 Rf7 28. Rbh1 Rf5 29. Rh8+ Kf7 30. Rc8 Rb7 31. Rhh8 Rxf3 32. Rhf8+ Ke7 33. Rce8+ Kd7 34. Rd8+ Ke7 35. Rfe8+ Kf7 36. Rf8+ Ke7 37. Rde8+ Kd7 38. Rd8+ Ke7 39. Rde8+ Kd7 40. Rd8+ Ke7 41. Rfe8+ Kf7 1/2-1/2

[Event "Titled Tuesday intern op 6th Dec 10am"]
[Site "Chess.com INT"]
[Date "2016.12.06"]
[Round "1"]
[White "Dobrov, Vladimir"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "E70"]
[WhiteElo "2499"]
[BlackElo "2309"]
[PlyCount "71"]
[EventDate "2016.12.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Nge2 d6 6. Ng3 c5 7. d5 e6 8. Be2 exd5 9. exd5 Nbd7 10. 0-0 a6 11. a4 Re8 12. Bf4 Ne5 13. Qd2 h5 14. Bg5 Qe7 15. Rae1 Qf8 16. f4 Neg4 17. Bf3 Nh7 18. Rxe8 Qxe8 19. Bxg4 Nxg5 20. Re1 Qd8 21. Bxc8 Nf3+ 22. gxf3 Rxc8 23. Kg2 h4 24. Nge4 h3+ 25. Kxh3 Qd7+ 26. Kg2 Bd4 27. Qxd4 cxd4 28. Nf6+ Kg7 29. Nxd7 dxc3 30. Nb6 Rc7 31. b4 a5 32. b5 Kf6 33. Rc1 Re7 34. Kf2 Kf5 35. Rxc3 Kxf4 36. c5 1-0

[Event "Titled Tuesday intern op 6th Dec 10am"]
[Site "Chess.com INT"]
[Date "2016.12.06"]
[Round "2"]
[White "Krylov, Ivan"]
[Black "O'Brien, Matthew"]
[Result "1/2-1/2"]
[ECO "E91"]
[WhiteElo "2334"]
[BlackElo "2310"]
[PlyCount "137"]
[EventDate "2016.12.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Nf3 d6 6. Be2 c5 7. d5 e6 8. 0-0 Re8 9. Nd2 Na6 10. Re1 Nc7 11. a4 b6 12. Bf1 exd5 13. cxd5 Ng4 14. Nf3 a6 15. h3 Ne5 16. Nd2 Rb8 17. f4 Nd7 18. Nc4 Nf8 19. Be3 b5 20. axb5 Nxb5 21. Nxb5 axb5 22. Na5 Bd7 23. Qc2 h5 24. Bf2 Nh7 25. e5 dxe5 26. Qxc5 exf4 27. Nc6 Bxc6 28. dxc6 Rxe1 29. Rxe1 Rc8 30. b4 Bf8 31. Qxb5 f3 32. gxf3 Qg5+ 33. Qxg5 Nxg5 34. Bg2 Bxb4 35. Rb1 Bd6 36. Rd1 Bf4 37. Rd4 Ne6 38. Rc4 Kf8 39. Bf1 Ke7 40. h4 Bd6 41. Bh3 f5 42. Bf1 Be5 43. Rc1 Kd6 44. Bb5 Nd4 45. Rd1 Kd5 46. Ba6 Rc7 47. Bb7 Kc4 48. Bxd4 Bxd4+ 49. Kg2 Kc5 50. Rc1+ Kd6 51. Rd1 Kc5 52. Kg3 Be5+ 53. Kg2 Bf4 54. Re1 Kd6 55. Re8 Rg7 56. Kf2 Kc5 57. Re6 Kb6 58. Ke2 Kc7 59. Kf2 Bd6 60. Re8 Bf4 61. Rc8+ Kb6 62. Re8 Kc7 63. Re2 Bd6 64. Re6 Bf4 65. Re8 Bd6 66. Rc8+ Kb6 67. Re8 Kc7 68. Re1 Bf4 69. Re6 1/2-1/2

[Event "Titled Tuesday intern op 6th Dec 10am"]
[Site "Chess.com INT"]
[Date "2016.12.06"]
[Round "6"]
[White "O'Brien, Matthew"]
[Black "Alvarado Diaz, Alejandro"]
[Result "0-1"]
[ECO "C90"]
[WhiteElo "2298"]
[BlackElo "2421"]
[PlyCount "178"]
[EventDate "2016.12.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. a4 b4 9. a5 0-0 10. h3 Rb8 11. d3 Be6 12. Nbd2 Qc8 13. Nc4 Kh8 14. Ba4 Nd8 15. b3 Ng8 16. d4 exd4 17. Nxd4 Bxc4 18. bxc4 Bf6 19. Be3 c5 20. Nf5 Bxa1 21. Qxa1 Ne6 22. Nxd6 Qc7 23. Nf5 Qxa5 24. Bf4 Rbc8 25. Bd6 Rfd8 26. Be5 f6 27. Nd6 Rc7 28. Bg3 Nd4 29. e5 b3 30. Bxb3 Nxb3 31. cxb3 Qxa1 32. Rxa1 Ra8 33. e6 Nh6 34. Nf7+ Rxf7 35. exf7 Nxf7 36. Ra5 h5 37. Rxc5 g5 38. Rc7 Kg7 39. Rb7 Kg6 40. f3 a5 41. c5 a4 42. bxa4 Rxa4 43. Bf2 Rc4 44. Kf1 Ne5 45. Rb8 Nd3 46. Be3 Rc2 47. Rg8+ Kf7 48. Rd8 Ne5 49. Rc8 Ke6 50. Re8+ Kd7 51. Rf8 Ke7 52. Rh8 h4 53. Rc8 Ke6 54. Re8+ Kd7 55. Rf8 Ke6 56. Re8+ Kf5 57. Rd8 Nc4 58. Bf2 Nd2+ 59. Ke2 Nb3+ 60. Kf1 Ke6 61. Re8+ Kf7 62. Re1 Nd2+ 63. Kg1 Nc4 64. Rd1 Ne5 65. Rb1 Nd3 66. Be3 Re2 67. Bd4 Nf4 68. Bf2 Rc2 69. Rd1 Ne6 70. Rd7+ Kg6 71. Rd1 f5 72. Rd6 Kf7 73. Rd7+ Kf6 74. Rd1 Nf4 75. Ra1 Ke5 76. Rd1 Ne2+ 77. Kf1 Nc3 78. Bd4+ Kf4 79. Bxc3 Rxc3 80. Kf2 Rc2+ 81. Kg1 Kg3 82. Kf1 Rxc5 83. Ke2 Kxg2 84. Rd2 Kxh3 85. Rd6 Kg3 86. Rh6 h3 87. Ke3 h2 88. Rh5 f4+ 89. Ke4 Kg2 0-1

[Event "Titled Tuesday intern op 6th Dec 10am"]
[Site "Chess.com INT"]
[Date "2016.12.06"]
[Round "3"]
[White "O'Brien, Matthew"]
[Black "Rodin, Mihail"]
[Result "0-1"]
[ECO "C64"]
[WhiteElo "2301"]
[BlackElo "2321"]
[PlyCount "46"]
[EventDate "2016.12.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 5. 0-0 Nge7 6. c3 Ba7 7. d4 exd4 8. cxd4 d5 9. exd5 Nxd5 10. Nc3 0-0 11. Bg5 Qd6 12. Nxd5 Qxd5 13. Bb3 Qf5 14. d5 Ne5 15. Nxe5 Qxg5 16. Nxf7 Rxf7 17. d6 Bg4 18. Qc1 Qxc1 19. Raxc1 cxd6 20. Rc7 Raf8 21. Rxb7 Bc5 22. h3 Be2 23. Re1 Bxf2+ 0-1

[Event "Titled Tuesday intern op 6th Dec 10am"]
[Site "Chess.com INT"]
[Date "2016.12.06"]
[Round "8"]
[White "O'Brien, Matthew"]
[Black "Wiwatanadate, Poompong"]
[Result "1-0"]
[ECO "C88"]
[WhiteElo "2293"]
[BlackElo "2024"]
[PlyCount "27"]
[EventDate "2016.12.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. Re1 0-0 8. a4 Rb8 9. axb5 axb5 10. c3 d6 11. d4 exd4 12. cxd4 Bg4 13. Be3 Nxe4 14. Bd5 1-0

[Event "Titled Tuesday intern op 6th Dec 10am"]
[Site "Chess.com INT"]
[Date "2016.12.06"]
[Round "7"]
[White "Van der Nat, Nicholas P"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2355"]
[BlackElo "2287"]
[PlyCount "154"]
[EventDate "2016.12.06"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Bxd7 7. c4 e5 8. Qd3 Nf6 9. Nc3 h6 10. 0-0 Be7 11. Rd1 Qc7 12. b3 Rc8 13. Ba3 b5 14. Bxd6 Bxd6 15. Qxd6 Qxd6 16. Rxd6 bxc4 17. Nd5 Nxd5 18. exd5 Bb5 19. bxc4 Ke7 20. Rb6 Bxc4 21. Nxe5 Bxd5 22. Rxa6 Rc7 23. Re1 Be6 24. Nxf7 Kxf7 25. Raxe6 Ra8 26. R6e2 Rca7 27. Ra1 Ra3 28. g3 h5 29. h4 Kg6 30. Kf1 Kf5 31. Rc2 R8a5 32. Ke1 g6 33. Kf1 Rd5 34. Rac1 Re5 35. Kg2 Kf6 36. Rc6+ Kf5 37. R1c4 Re2 38. Rf4+ Ke5 39. Rxg6 Raxa2 40. Rg5+ Ke6 41. Rxh5 Reb2 42. Rg5 Rb8 43. h5 Rh8 44. g4 Ra3 45. Rf3 Ra1 46. Rg6+ Ke5 47. Rf5+ Ke4 48. Re6+ Kd4 49. Re3 Ra7 50. Kf3 Ra1 51. Re4+ Kd3 52. Rd5+ Kc3 53. Rf4 Ra3 54. Re5 Kd2+ 55. Re3 Ra6 56. Rd4+ Kc2 57. Kg3 Rf6 58. Rf4 Rd6 59. Rff3 Rd1 60. Re2+ Kb1 61. Rfe3 Rd4 62. Rb3+ Kc1 63. Ra3 Kd1 64. Rb2 Kc1 65. Raa2 Rg8 66. f3 Re8 67. Rg2 Kb1 68. Rab2+ Ka1 69. Rbf2 Rd1 70. h6 Rh8 71. g5 Rg8 72. f4 Rgd8 73. Kg4 Re8 74. h7 Rh8 75. g6 Rc8 76. g7 Rcd8 77. h8Q Kb1 1-0

[Event "Titled Tuesday intern op 4th Oct"]
[Site "Chess.com INT"]
[Date "2016.10.04"]
[Round "3"]
[White "Kleiman, Jake"]
[Black "O'Brien, Matthew"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2399"]
[BlackElo "2317"]
[PlyCount "52"]
[EventDate "2016.10.04"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Nf6 4. d4 Nxd5 5. dxc5 e6 6. b4 a5 7. Qb3 Nc6 8. Bb5 Qf6 9. Bb2 Qe5+ 10. Ne2 Nf4 11. Kf1 Nxe2 12. Bxe2 Qf5 13. Nd2 Be7 14. Nc4 0-0 15. Nb6 Rb8 16. Rd1 e5 17. Nxc8 Rbxc8 18. h3 Rcd8 19. Ke1 Bh4 20. Rf1 Qe4 21. g3 Bg5 22. h4 Bh6 23. a3 Rxd1+ 24. Qxd1 Rd8 25. Qb3 Bd2+ 26. Kd1 Qb1+ 0-1

[Event "Titled Tuesday intern op 4th Oct"]
[Site "Chess.com INT"]
[Date "2016.10.04"]
[Round "1"]
[White "O'Brien, Matthew"]
[Black "Amin, Bassem"]
[Result "0-1"]
[ECO "C90"]
[WhiteElo "2297"]
[BlackElo "2655"]
[PlyCount "146"]
[EventDate "2016.10.04"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. a4 Bg4 9. c3 0-0 10. h3 Bh5 11. d3 b4 12. Bc4 bxc3 13. bxc3 Na5 14. Ba2 Rb8 15. Nbd2 Nd7 16. Nc4 Nxc4 17. Bxc4 a5 18. d4 Kh8 19. Be2 Bg6 20. Bd3 Bf6 21. Ba3 Re8 22. Rb1 Bh5 23. g4 Bg6 24. Qc2 h6 25. Bc1 Rxb1 26. Qxb1 c6 27. Bd2 Qc7 28. Qc2 Nf8 29. Kg2 Ne6 30. Qc1 exd4 31. cxd4 Nxd4 32. Nxd4 Bxd4 33. Bf4 Be5 34. Be3 Bf6 35. Qc4 Qd7 36. Rc1 d5 37. exd5 cxd5 38. Qb5 Qxb5 39. Bxb5 Re6 40. Rd1 Bc3 41. Bd4 Bc2 42. Rc1 Be4+ 43. f3 Bxd4 44. fxe4 dxe4 45. Re1 g6 46. Kf1 Kg7 47. Ke2 Rf6 48. Rd1 Rf2+ 49. Ke1 Be3 50. Rd5 Rh2 51. Rd7 Rxh3 52. Bc4 Rf3 53. Bd5 Rf4 54. Ke2 Bc5 55. Rc7 Bb4 56. Ke3 g5 57. Bxe4 Rxg4 58. Bd5 Rf4 59. Rc2 h5 60. Be4 h4 61. Rg2 f6 62. Rc2 Kh6 63. Rc7 f5 64. Bd5 h3 65. Bf3 Rxf3+ 66. Kxf3 g4+ 67. Kf2 g3+ 68. Kf3 g2 69. Rc6+ Kh5 70. Rc1 Bc5 71. Rxc5 g1Q 72. Rxf5+ Kg6 73. Rxa5 h2 0-1

[Event "Titled Tuesday intern op 4th Oct"]
[Site "Chess.com INT"]
[Date "2016.10.04"]
[Round "2"]
[White "Sztokbant, Bernardo Vainzoff"]
[Black "O'Brien, Matthew"]
[Result "0-1"]
[ECO "E94"]
[WhiteElo "2162"]
[BlackElo "2303"]
[PlyCount "128"]
[EventDate "2016.10.04"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 Nbd7 7. 0-0 e5 8. d5 Nc5 9. Qc2 a5 10. b3 Nh5 11. g3 h6 12. Nh4 Nf4 13. Ng2 Nh3+ 14. Kh1 f5 15. f3 c6 16. Ba3 fxe4 17. Nxe4 Nxe4 18. Qxe4 Bf5 19. Qe3 cxd5 20. cxd5 Rc8 21. Rac1 Qd7 22. Nh4 Ng5 23. Nxf5 Rxc1 24. Nxh6+ Bxh6 25. Bxc1 Kg7 26. Qb6 Rc8 27. Bb5 Qe7 28. h4 Nf7 29. Bxh6+ Nxh6 30. Bd3 Rc3 31. Be4 Qd7 32. Kg2 Ng8 33. Rf2 Nf6 34. Qxa5 Rc1 35. Qd2 Ra1 36. Qb2 Re1 37. Qc3 Rxe4 38. fxe4 Nxe4 39. Qf3 Nxf2 40. Kxf2 Qc7 41. a4 Qc2+ 42. Kg1 Qc1+ 43. Kg2 Qc2+ 44. Kh3 e4 45. Qf4 Qd1 46. Qxe4 Qf1+ 47. Kg4 Qf6 48. Qf4 Qc3 49. b4 Qc2 50. a5 Qd1+ 51. Qf3 Qd4+ 52. Kh3 Qxb4 53. Qe3 Qc5 54. Qe7+ Kh6 55. Qf8+ Kh7 56. Qf7+ Kh6 57. Qf8+ Kh7 58. Qe7+ Kh6 59. Qxb7 Qxa5 60. Qf7 Qe1 61. Qf4+ Kh7 62. Qxd6 Qh1+ 63. Kg4 Qe4+ 64. Kg5 Qf5# 0-1

[Event "Titled Tuesday intern op 2nd Aug"]
[Site "Chess.com INT"]
[Date "2016.08.02"]
[Round "2"]
[White "Hu, Bryan"]
[Black "O'Brien, Matthew"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "2229"]
[BlackElo "2268"]
[PlyCount "119"]
[EventDate "2016.08.02"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nc6 2. Nf3 d6 3. c4 Bg4 4. Nc3 Bxf3 5. gxf3 Nf6 6. e3 e5 7. d5 Nb8 8. Bd3 Be7 9. Bd2 Nbd7 10. b4 a5 11. a3 e4 12. fxe4 Ne5 13. Be2 h5 14. f4 Neg4 15. h3 Nh6 16. Bf3 Nd7 17. Ke2 0-0 18. Rg1 f5 19. Nb5 Nf6 20. Nd4 fxe4 21. Bh1 Rf7 22. Bc3 Qd7 23. Ne6 c6 24. Qd4 cxd5 25. cxd5 Qb5+ 26. Kf2 Nf5 27. Qd2 Qxd5 28. Qxd5 Nxd5 29. Bd2 Bh4+ 30. Ke2 Re8 31. Bxe4 Nxf4+ 32. exf4 Rxe6 33. Kd3 d5 34. Bxd5 Rd7 35. Kc4 Rxd5 36. Kxd5 Rd6+ 37. Ke5 g6 38. Rad1 Kf7 39. Bc3 Bf6+ 40. Ke4 Bxc3 41. Rxd6 Nxd6+ 42. Kd5 Nf5 43. Rc1 axb4 44. axb4 Bxb4 45. Rc7+ Kf6 46. Rxb7 Bd2 47. Rb6+ Kg7 48. Ke5 Be3 49. Rb7+ Kh6 50. Rb8 Bd4+ 51. Ke4 Bf6 52. Rb6 Kg7 53. Rb7+ Kh6 54. Rb1 Ng3+ 55. Kd5 Bh4 56. Ke6 Nf5 57. Rb6 Kg7 58. Rb7+ Kh6 59. Kf7 Nd6+ 60. Kg8 0-1

[Event "Titled Tuesday intern op 2nd Aug"]
[Site "Chess.com INT"]
[Date "2016.08.02"]
[Round "3"]
[White "Katz, Alexander R"]
[Black "O'Brien, Matthew"]
[Result "0-1"]
[ECO "B26"]
[WhiteElo "2339"]
[BlackElo "2280"]
[PlyCount "103"]
[EventDate "2016.08.02"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nc6 4. Bg2 g6 5. d3 Bg7 6. Be3 Bd7 7. Qd2 Rc8 8. h3 a6 9. Nf3 Nd4 10. Nh4 b5 11. 0-0 b4 12. Nd1 e6 13. f4 Ne7 14. c3 bxc3 15. bxc3 Ndc6 16. g4 f5 17. gxf5 gxf5 18. exf5 0-0 19. fxe6 Bxe6 20. Nf3 Nd5 21. Ng5 Nxe3 22. Qxe3 Bf5 23. Bd5+ Kh8 24. Nf7+ Rxf7 25. Bxf7 Nd4 26. Qf2 Qf6 27. Bd5 Bxd3 28. cxd4 Qg6+ 29. Bg2 Bxd4 30. Ne3 Rg8 31. Rae1 c4 32. Kh2 Bxf1 33. Qxf1 Qg3+ 34. Kh1 Bxe3 35. Rxe3 Qxe3 36. Qa1+ c3 37. Qd1 Qd2 38. Qxd2 cxd2 39. Bf3 Rg3 40. Bd1 Re3 41. Kg2 Re1 42. Bh5 d1Q 43. Bxd1 Rxd1 44. Kf3 Ra1 45. Kg4 Rxa2 46. Kf5 Kg7 47. Ke6 Rf2 48. f5 d5 49. h4 d4 50. h5 h6 51. Ke5 d3 52. f6+ 0-1

[Event "Titled Tuesday intern op 2nd Aug"]
[Site "Chess.com INT"]
[Date "2016.08.02"]
[Round "6"]
[White "Kotepalli, Sai Nirupama"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "1944"]
[BlackElo "2272"]
[PlyCount "131"]
[EventDate "2016.08.02"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d3 Nf6 4. g3 g6 5. Bg2 Bg7 6. 0-0 Nc6 7. c3 0-0 8. Qe2 d5 9. e5 Nd7 10. Bf4 Nb6 11. Nbd2 Qd7 12. d4 cxd4 13. cxd4 Nd8 14. Be3 Qe8 15. h3 Bd7 16. Rfc1 Ne6 17. b3 Bb5 18. Qd1 Qd7 19. Nf1 Rfc8 20. a4 Ba6 21. a5 Rxc1 22. Rxc1 Nc8 23. N1h2 Qd8 24. Qd2 b6 25. Bh6 bxa5 26. Ng4 Bxh6 27. Nxh6+ Kg7 28. Ng4 Nb6 29. Rc6 Bc8 30. Qh6+ Kg8 31. Rxe6 Qf8 32. Qxf8+ Kxf8 33. Rc6 Bd7 34. Rc5 a4 35. bxa4 Bxa4 36. Ng5 h6 37. Nxh6 Kg7 38. Nhxf7 Rb8 39. e6 Bb3 40. Rc7 Kf6 41. Rxa7 Nc4 42. Bxd5 Nd2 43. Bxb3 Rxb3 44. h4 Rd3 45. Ra2 Nc4 46. Re2 Rxd4 47. Ne4+ Kg7 48. Nfg5 Nb6 49. Nc5 Nd5 50. Re4 Rd1+ 51. Kg2 Kf6 52. Nd7+ Kg7 53. Re5 Nc3 54. Re3 Nd5 55. Rf3 Re1 56. Rf7+ Kg8 57. Rf8+ Kg7 58. Rd8 Nc3 59. Nc5 Re2 60. Re8 Kf6 61. Nd7+ Kf5 62. Rxe7 Nd5 63. Rf7+ Kg4 64. Kf1 Ra2 65. Ne5+ Kh5 66. Rh7# 1-0

[Event "Titled Tuesday intern op 2nd Aug"]
[Site "Chess.com INT"]
[Date "2016.08.02"]
[Round "8"]
[White "O'Brien, Matthew"]
[Black "Hunt, Adam"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2261"]
[BlackElo "2424"]
[PlyCount "90"]
[EventDate "2016.08.02"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Be7 7. 0-0 d6 8. f4 Nc6 9. f5 Bf6 10. N1d2 Nge7 11. Nf3 Ne5 12. Nfd4 0-0 13. g4 N7c6 14. Nxc6 bxc6 15. Qd2 Nxg4 16. Qg2 Ne5 17. Rf2 c5 18. Bf4 Bb7 19. Raf1 exf5 20. Bxe5 Bxe5 21. Rxf5 Bc8 22. Rg5 Be6 23. Nd2 Bxb2 24. e5 Bxe5 25. Ne4 Kh8 26. Rh5 g6 27. Rh6 Bg7 28. Rxh7+ Kxh7 29. Ng5+ Kg8 30. Qg3 Bd4+ 31. Kg2 Bd5+ 32. Kh3 Qd7+ 33. Bf5 Qe7 34. Qh4 Qe3+ 35. Rf3 Qxf3+ 36. Nxf3 Bxf3 37. Bg4 Bxg4+ 38. Qxg4 Rae8 39. Qd7 Re3+ 40. Kg2 Rfe8 41. Qxd6 Re2+ 42. Kf3 Rf2+ 43. Kg4 Re4+ 44. Kg5 Rg2+ 45. Kh6 Rh4# 0-1

[Event "Titled Tuesday intern op 2nd Aug"]
[Site "Chess.com INT"]
[Date "2016.08.02"]
[Round "5"]
[White "O'Brien, Matthew"]
[Black "Tekeyev, Zaur"]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "2284"]
[BlackElo "2357"]
[PlyCount "177"]
[EventDate "2016.08.02"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. f3 Be7 9. 0-0-0 b5 10. g4 Nxd4 11. Qxd4 Bb7 12. g5 Nh5 13. Kb1 Rc8 14. Bh3 b4 15. Ne2 0-0 16. Qd2 g6 17. Ng3 Ng7 18. Bg4 d5 19. h4 Rfd8 20. e5 d4 21. Bf4 Nf5 22. Bxf5 exf5 23. e6 Qc4 24. exf7+ Qxf7 25. h5 Bd6 26. hxg6 hxg6 27. Qxd4 Qg7 28. Qxg7+ Kxg7 29. Bxd6 Bxf3 30. Be5+ Kf7 31. Rxd8 Rxd8 32. Re1 Re8 33. Kc1 f4 34. Nf1 Bg2 35. Nh2 f3 36. Bg3 Rxe1+ 37. Bxe1 Ke6 38. Kd2 Kf5 39. Ke3 Kxg5 40. Nxf3+ Kg4 41. Ne5+ Kf5 42. Nf3 Kg4 43. Nd4 a5 44. a3 bxa3 45. bxa3 a4 46. Nb5 Bc6 47. Nd6 Kg5 48. Kd4 Kf4 49. Bd2+ Kf3 50. Kc5 Bd7 51. c4 Ke2 52. Bg5 Kd3 53. Kb4 Kd4 54. c5 Kd5 55. Nb7 Kc6 56. Na5+ Kc7 57. Nc4 Kc6 58. Ne5+ Kc7 59. Nxd7 Kxd7 60. Kxa4 Kc6 61. Be7 g5 62. Kb4 g4 63. Bh4 Kc7 64. Bg3+ Kb7 65. Kc4 Kc6 66. Kd4 Kd7 67. Kd5 Kc8 68. a4 Kb7 69. Kd6 Kc8 70. c6 Kd8 71. a5 Kc8 72. a6 Kb8 73. a7+ Kxa7 74. Kd7 Ka8 75. c7 Ka7 76. Bf4 g3 77. Bxg3 Kb6 78. c8Q Kb5 79. Qc6+ Kb4 80. Bd6+ Kb3 81. Be7 Kb2 82. Bd8 Kb1 83. Qc4 Ka1 84. Qb4 Ka2 85. Ke6 Ka1 86. Kd5 Ka2 87. Kd4 Ka1 88. Kc3 Ka2 89. Qb2# 1-0

[Event "Titled Tuesday intern op 2nd Aug"]
[Site "Chess.com INT"]
[Date "2016.08.02"]
[Round "1"]
[White "O'Brien, Matthew"]
[Black "Tran, Minh Thang"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2258"]
[BlackElo "2353"]
[PlyCount "76"]
[EventDate "2016.08.02"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. h3 Be6 9. Qf3 Nbd7 10. g4 Nb6 11. Rd1 Rc8 12. g5 Nfd7 13. h4 Nc4 14. Bxc4 Rxc4 15. h5 b5 16. g6 hxg6 17. hxg6 Rxh1+ 18. Qxh1 fxg6 19. Qg2 Kf7 20. Kd2 b4 21. Ne2 Qc7 22. c3 bxc3+ 23. Nxc3 Nf6 24. Rg1 Bg4 25. f3 Bh5 26. Rc1 d5 27. exd5 Bb4 28. Qe2 Nxd5 29. Ke1 Nxc3 30. bxc3 Rxc3 31. Kf2 e4 32. Rxc3 Bxc3 33. Qxa6 Qh2+ 34. Kf1 Qh1+ 35. Bg1 Qxf3+ 36. Bf2 Qh1+ 37. Bg1 Qh3+ 38. Kf2 Qf3# 0-1

[Event "Titled Tuesday intern op1 5th July"]
[Site "Chess.com INT"]
[Date "2016.07.05"]
[Round "7"]
[White "Cheng, Xiao"]
[Black "O'Brien, Matthew"]
[Result "1/2-1/2"]
[ECO "B70"]
[WhiteElo "2288"]
[BlackElo "2275"]
[PlyCount "96"]
[EventDate "2016.07.05"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. Nc3 d6 6. e4 c5 7. d4 cxd4 8. Nxd4 Nc6 9. Nxc6 bxc6 10. e5 dxe5 11. Bxc6 Bh3 12. Bg2 Bxg2 13. Kxg2 Qc8 14. Qe2 Qc6+ 15. Kg1 Rfc8 16. Qxe5 Ng4 17. Qe2 Ne5 18. f4 Nc4 19. Qf3 Qc5+ 20. Kg2 Rab8 21. Ne4 Qc6 22. Rb1 Na3 23. Qxa3 Qxe4+ 24. Kh3 Rxc2 25. Qf3 Qf5+ 26. g4 Rxh2+ 27. Kxh2 Qxb1 28. Be3 Qxb2+ 29. Rf2 Qb1 30. Bxa7 Rc8 31. a4 Qa1 32. Qb3 Qe1 33. Qe3 Qa5 34. Qxe7 Qxa4 35. f5 Re8 36. Qc5 Be5+ 37. Kh3 Qb3+ 38. Kg2 Qg3+ 39. Kf1 Qxg4 40. Qb5 Qh3+ 41. Kg1 Qg3+ 42. Kf1 Qh3+ 43. Kg1 Qg3+ 44. Kf1 Qh3+ 45. Rg2 Qf3+ 46. Rf2 Qh3+ 47. Kg1 Qg3+ 48. Kf1 Qh3+ 1/2-1/2

[Event "Titled Tuesday intern op 5th July"]
[Site "Chess.com INT"]
[Date "2016.07.05"]
[Round "5"]
[White "Gabrielian, Artur"]
[Black "O'Brien, Matthew"]
[Result "1-0"]
[ECO "B95"]
[WhiteElo "2520"]
[BlackElo "2287"]
[PlyCount "61"]
[EventDate "2016.07.05"]
[EventType "swiss (blitz)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qe2 Bd7 8. 0-0-0 Nc6 9. f4 Qa5 10. Nb3 Qc7 11. g4 0-0-0 12. Bg2 Kb8 13. Rhe1 Rc8 14. e5 Ne8 15. exd6 Bxd6 16. Kb1 Nf6 17. Bxf6 gxf6 18. Qd2 Bxf4 19. Qxd7 Bxh2 20. Bxc6 Qxc6 21. Qxf7 Be5 22. Nd4 Qb6 23. Nb3 h6 24. Rd7 Rhd8 25. Rxd8 Rxd8 26. a3 Qf2 27. Rxe5 Qg1+ 28. Ka2 fxe5 29. Qxe6 Qg3 30. Nc5 Qe3 31. Qb6 1-0

