[Event "San Francisco TNM Summer op"]
[Site "San Francisco"]
[Date "2006.08.01"]
[Round "8"]
[White "Petrison, John"]
[Black "Kleiman, Charles"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2035"]
[BlackElo "1901"]
[PlyCount "120"]
[EventDate "2006.06.06"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nd2 d5 3. e3 Bf5 4. c4 e6 5. Qb3 b6 6. Ngf3 Bd6 7. Ne5 0-0 8. Ndf3 c5 9. Bd3 Bxd3 10. Qxd3 Qc7 11. 0-0 Nc6 12. Nxc6 Qxc6 13. Ne5 Qc7 14. f4 Ne4 15. cxd5 exd5 16. b3 f6 17. dxc5 Bxe5 18. Qxd5+ Qf7 19. Qxf7+ Rxf7 20. fxe5 Nxc5 21. exf6 Rxf6 22. Rxf6 gxf6 23. Bb2 Kf7 24. Rf1 Ne4 25. Rf4 Re8 26. g4 Re6 27. Bd4 Kg6 28. Kg2 h5 29. h3 h4 30. Rf1 Rc6 31. Kg1 Ng5 32. Kg2 Rc2+ 33. Rf2 Rxf2+ 34. Kxf2 Nxh3+ 35. Kg2 Ng5 36. a4 f5 37. gxf5+ Kxf5 38. b4 Ne6 39. Bc3 Ke4 40. b5 Kxe3 41. Kh3 Kd3 42. Be1 Nc5 43. a5 Kc4 44. axb6 axb6 45. Bxh4 Ne6 46. Bf2 Nd4 47. Kg4 Kd5 48. Kf4 Ne6+ 49. Ke3 Kc4 50. Kd2 Nc5 51. Kc2 Kxb5 52. Bh4 Kc4 53. Bd8 b5 54. Ba5 Nb3 55. Be1 Nd4+ 56. Kb2 Ne2 57. Bd2 Nd4 58. Be1 Ne6 59. Bf2 b4 60. Bh4 b3 1/2-1/2

[Event "San Francisco TNM Summer op"]
[Site "San Francisco"]
[Date "2006.07.25"]
[Round "7"]
[White "Purcell, Brendan"]
[Black "Petrison, John"]
[Result "1-0"]
[ECO "C63"]
[WhiteElo "1901"]
[BlackElo "2035"]
[PlyCount "111"]
[EventDate "2006.06.06"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 Nf6 6. d3 d6 7. Bg5 Be7 8. h3 0-0 9. Qe2 Nh5 10. Bxc6 bxc6 11. Nxe5 Bxg5 12. Qxh5 Bh6 13. Nxc6 Qe8 14. Qxe8 Rxe8 15. 0-0 Bb7 16. Nd4 Bxe4 17. dxe4 Rxe4 18. Nf5 Bg5 19. Rfe1 Rae8 20. Kf1 Kf7 21. Rxe4 Rxe4 22. Re1 Ra4 23. a3 Bf6 24. c3 Ra5 25. Nd4 g6 26. g3 c5 27. Nf3 Rb5 28. Re2 d5 29. Ne5+ Kg7 30. f4 d4 31. cxd4 cxd4 32. Rd2 Rd5 33. Kf2 g5 34. Kf3 Bxe5 35. fxe5 Kf7 36. Ke4 Ke6 37. Rxd4 Rxe5+ 38. Kd3 Rf5 39. Kc4 h5 40. b4 Rf3 41. Rd3 Rf2 42. a4 Rh2 43. g4 hxg4 44. hxg4 Ke5 45. Rd7 Rg2 46. Rxa7 Rxg4+ 47. Kc5 Rg1 48. b5 Rc1+ 49. Kb6 g4 50. Rg7 Kf4 51. a5 Re1 52. a6 Re6+ 53. Kb7 Re5 54. b6 g3 55. a7 Rg5 56. Rxg5 1-0

[Event "San Francisco TNM Summer op"]
[Site "San Francisco"]
[Date "2006.07.18"]
[Round "6"]
[White "Petrison, John"]
[Black "Adkins, Rico"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2035"]
[BlackElo "1629"]
[PlyCount "21"]
[EventDate "2006.06.06"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nd2 c5 3. a3 Nc6 4. dxc5 a5 5. Nc4 b5 6. Nb6 Rb8 7. e3 b4 8. axb4 Nxb4 9. c3 Na6 10. b4 axb4 11. Bxa6 1-0

[Event "San Francisco TNM Summer op"]
[Site "San Francisco"]
[Date "2006.07.11"]
[Round "5"]
[White "Royzen, Igor"]
[Black "Petrison, John"]
[Result "0-1"]
[ECO "C56"]
[WhiteElo "1675"]
[BlackElo "2035"]
[PlyCount "114"]
[EventDate "2006.06.06"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. e5 d5 6. Bb5 Ne4 7. Nxd4 Bd7 8. Nxc6 bxc6 9. Be2 Bc5 10. 0-0 Qh4 11. Qe1 0-0 12. Nd2 f5 13. exf6 Rxf6 14. Nf3 Qh5 15. Ng5 Qe8 16. Nxe4 Qxe4 17. Qc3 Bd6 18. Bg5 Qxe2 19. Bxf6 gxf6 20. Qxf6 Qe5 21. Qxe5 Bxe5 22. c3 Rb8 23. Rfe1 Bf6 24. Re2 Kf7 25. Rae1 c5 26. Rd2 c6 27. Rde2 d4 28. cxd4 cxd4 29. Rd2 c5 30. b3 a5 31. Rc2 Rb5 32. Rec1 Be7 33. h3 Rb4 34. Rc4 Rxc4 35. Rxc4 d3 36. Rc1 Bb5 37. Rd1 Bf6 38. Kf1 Bc3 39. f3 d2+ 40. Kf2 Bd3 41. Ke3 Bc2 42. Rxd2 Bxd2+ 43. Kxd2 Bf5 44. Kc3 Ke7 45. a3 Kd7 46. b4 cxb4+ 47. axb4 axb4+ 48. Kxb4 Kd6 49. Kc3 Ke5 50. Kd2 Kf4 51. Ke2 Kg3 52. Kf1 h5 53. Kg1 h4 54. f4 Be4 55. f5 Bxg2 56. f6 Bd5 57. f7 Bxf7 0-1

[Event "San Francisco TNM Summer op"]
[Site "San Francisco"]
[Date "2006.06.27"]
[Round "4"]
[White "Petrison, John"]
[Black "Whalley, Martin"]
[Result "0-1"]
[ECO "D06"]
[WhiteElo "2035"]
[BlackElo "1830"]
[PlyCount "58"]
[EventDate "2006.06.06"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 d5 2. e3 Bf5 3. c4 e6 4. Qb3 Nc6 5. Bd2 Rb8 6. Nf3 Be7 7. cxd5 exd5 8. Nc3 Nf6 9. Nh4 Qd7 10. Nxf5 Qxf5 11. f3 0-0 12. Nb5 a6 13. Na3 Rfe8 14. Bd3 Qg5 15. 0-0-0 Qxg2 16. Rdf1 Qh3 17. Rf2 Bd6 18. Rg1 Kh8 19. Nc2 Re7 20. f4 Ne4 21. Rfg2 Nxd2 22. Kxd2 Nxd4 23. exd4 Bxf4+ 24. Kc3 Bxh2 25. Rxg7 Bxg1 26. Rxh7+ Qxh7 27. Bxh7 Kxh7 28. Qxd5 Be3 29. Qf5+ Kg8 0-1

[Event "San Francisco TNM Summer op"]
[Site "San Francisco"]
[Date "2006.06.20"]
[Round "3"]
[White "Sandberg, Evan"]
[Black "Petrison, John"]
[Result "0-1"]
[ECO "C57"]
[WhiteElo "1506"]
[BlackElo "2035"]
[PlyCount "45"]
[EventDate "2006.06.06"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 b5 6. Bxb5 Qxd5 7. Bxc6+ Qxc6 8. Nf3 e4 9. Nd4 Qd5 10. Ne2 Bd6 11. Nbc3 Qe5 12. d4 Qf5 13. Ng3 Bxg3 14. hxg3 Ba6 15. Bf4 c5 16. d5 g5 17. Bc7 0-0 18. Qe2 Ng4 19. d6 e3 20. fxe3 Nxe3 21. Rc1 Rfe8 22. d7 Nxg2+ 23. Kd1 0-1

[Event "San Francisco TNM Summer op"]
[Site "San Francisco"]
[Date "2006.06.13"]
[Round "2"]
[White "Allen, Tom"]
[Black "Petrison, John"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "1627"]
[BlackElo "2035"]
[PlyCount "90"]
[EventDate "2006.06.06"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 d5 5. exd5 Qxd5 6. cxd4 Bg4 7. Be2 0-0-0 8. Nc3 Qd7 9. Be3 Bxf3 10. Bxf3 Nxd4 11. Bg4 Nc2+ 12. Kf1 Nxe3+ 13. fxe3 f5 14. Qxd7+ Kxd7 15. Bxf5+ Ke8 16. Ke2 Bd6 17. Rad1 Ne7 18. Bg4 Ng6 19. Nb5 Be5 20. Rxd8+ Kxd8 21. Rd1+ Ke8 22. g3 a6 23. Nd4 h5 24. Bc8 h4 25. Nf5 hxg3 26. hxg3 Rh2+ 27. Kf3 Rxb2 28. Rd7 Rb6 29. Nxg7+ Bxg7 30. Rxg7 Ne7 31. Bg4 c5 32. Rg5 Rc6 33. Ke2 c4 34. Kd2 b5 35. Kc2 Rd6 36. Be2 Nd5 37. Re5+ Kd8 38. a3 Nb6 39. g4 Na4 40. g5 c3 41. Bd3 Nb2 42. Bf5 Nc4 43. g6 Nxe5 44. g7 Rd2+ 45. Kxc3 Rg2 0-1

[Event "San Francisco TNM Summer op"]
[Site "San Francisco"]
[Date "2006.06.06"]
[Round "1"]
[White "Petrison, John"]
[Black "Dembling, Arthur"]
[Result "0-1"]
[ECO "C12"]
[WhiteElo "2035"]
[BlackElo "1674"]
[PlyCount "124"]
[EventDate "2006.06.06"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. e5 h6 6. Bd2 Bxc3 7. Bxc3 Ne4 8. Bb4 c5 9. dxc5 Nxf2 10. Kxf2 Qh4+ 11. g3 Qxb4 12. Nf3 Qxc5+ 13. Kg2 Nc6 14. c3 Bd7 15. Rc1 Qe3 16. Qe1 Qxe1 17. Rxe1 Ke7 18. Bd3 Rac8 19. Rhf1 a6 20. Rf2 Rhf8 21. a4 Na5 22. Bc2 Nc6 23. b3 Na5 24. b4 Nc4 25. Bb3 Rc7 26. Nd4 Rfc8 27. b5 axb5 28. axb5 Rc5 29. Ra2 Bxb5 30. Ra7 Ba6 31. Ra1 Kf8 32. Nc2 Nxe5 33. Nb4 Nc6 34. Nxa6 bxa6 35. R7xa6 Rxc3 36. Bd1 Ne5 37. Ra7 R8c7 38. Ra8+ Ke7 39. Ba4 Kf6 40. Rf1+ Kg6 41. Rf8 Nc4 42. Rf2 Nd6 43. Rd8 Ne4 44. Rf1 Rc8 45. Rd7 R3c7 46. Rfxf7 Rxd7 47. Rxd7 Nc5 48. Bc2+ Kf6 49. Ra7 d4 50. h4 d3 51. Bd1 Rd8 52. g4 Rd7 53. Ra5 Ne4 54. Ra3 g5 55. Bf3 d2 56. hxg5+ hxg5 57. Bd1 Rc7 58. Rd3 Rc3 59. Rd8 Ke5 60. Bf3 Nd6 61. Be2 Rc1 62. Rg8 Nf7 0-1

[Event "San Francisco TNM Winter op"]
[Site "San Francisco"]
[Date "2006.02.28"]
[Round "7"]
[White "Litowsky, Daniel"]
[Black "Petrison, John"]
[Result "1-0"]
[ECO "C28"]
[WhiteElo "1700"]
[BlackElo "2092"]
[PlyCount "120"]
[EventDate "2006.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 4. a3 Nxe4 5. Bxf7+ Kxf7 6. Nxe4 d5 7. Qf3+ Ke8 8. Nc3 e4 9. Qh5+ g6 10. Qxd5 Qxd5 11. Nxd5 Bd6 12. Ne2 Be6 13. Nf6+ Ke7 14. Nxe4 Be5 15. d3 h6 16. 0-0 g5 17. c3 Rhf8 18. Be3 b6 19. Rad1 Bb3 20. Rd2 Rad8 21. d4 Bg7 22. f4 g4 23. g3 Na5 24. Nc1 Bd5 25. Nf2 Nc4 26. Re2 Bf3 27. Ree1 Nxb2 28. Ncd3 Nxd3 29. Nxd3 Kd7 30. Ne5+ Bxe5 31. fxe5 h5 32. c4 c6 33. e6+ Kxe6 34. Bg5+ Kf5 35. Bxd8 Rxd8 36. Rd1 Kg5 37. Rd2 Re8 38. d5 cxd5 39. cxd5 Rd8 40. d6 Kf6 41. Re1 Rd7 42. Re3 Bc6 43. Rc3 Bf3 44. Rc7 Ke6 45. Rxd7 Kxd7 46. Kf2 b5 47. Ke3 a5 48. Rd4 b4 49. axb4 axb4 50. Kd2 Bc6 51. Kc2 Ba4+ 52. Kd3 Bb5+ 53. Ke4 Ke6 54. Kf4 b3 55. Rb4 Be8 56. Rxb3 Kxd6 57. Re3 Bf7 58. Kg5 Kd5 59. Re7 Be6 60. Kxh5 Ke5 1-0

[Event "San Francisco TNM Winter op"]
[Site "San Francisco"]
[Date "2006.02.21"]
[Round "6"]
[White "Petrison, John"]
[Black "Wilkerson, Max"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2092"]
[BlackElo "1900"]
[PlyCount "71"]
[EventDate "2006.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 e6 2. e4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. Qg4 Ne7 7. Qxg7 Rg8 8. Qxh7 cxd4 9. b4 dxc3 10. bxa5 Nbc6 11. Nf3 Bd7 12. Ng5 Nxe5 13. f4 Qc7 14. fxe5 Qxe5+ 15. Be2 Rxg5 16. Bxg5 Qxg5 17. 0-0 0-0-0 18. Qh5 Qe3+ 19. Kh1 Nf5 20. Qf3 Qh6 21. Qf4 Rh8 22. Qxh6 Rxh6 23. Kg1 Ne3 24. Rf3 d4 25. Bd3 f5 26. Re1 Bc6 27. Rg3 e5 28. Rgxe3 dxe3 29. Bxf5+ Kc7 30. Rxe3 Rf6 31. g4 Rd6 32. Rxc3 Kd8 33. Kf2 Rd2+ 34. Kg3 Rg2+ 35. Kh3 Re2 36. g5 1-0

[Event "San Francisco TNM Winter op"]
[Site "San Francisco"]
[Date "2006.02.07"]
[Round "5"]
[White "Faulkner, Charles"]
[Black "Petrison, John"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "1849"]
[BlackElo "2092"]
[PlyCount "78"]
[EventDate "2006.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bg5 Nbd7 4. Nbd2 c6 5. e3 Qb6 6. Rb1 e6 7. Bd3 c5 8. c3 Bd6 9. 0-0 h6 10. Bxf6 Nxf6 11. e4 dxe4 12. Nxe4 Bd7 13. dxc5 Bxc5 14. Nxc5 Qxc5 15. Re1 0-0 16. Ne5 Rad8 17. Qb3 b6 18. Rbd1 Bc6 19. Nxc6 Qxc6 20. Qc4 Rc8 21. Qxc6 Rxc6 22. Bc2 b5 23. Be4 Rc5 24. Rd4 a5 25. Bf3 e5 26. Rd2 b4 27. cxb4 axb4 28. Rde2 Rfc8 29. g3 Rc2 30. a3 b3 31. Kf1 e4 32. Bxe4 Nxe4 33. Rxe4 Rxb2 34. Re8+ Rxe8 35. Rxe8+ Kh7 36. Rb8 Rb1+ 37. Kg2 b2 38. a4 Ra1 39. Rxb2 Rxa4 1/2-1/2

[Event "San Francisco TNM Winter op"]
[Site "San Francisco"]
[Date "2006.01.31"]
[Round "4"]
[White "Petrison, John"]
[Black "Oca Homer, Nicolas"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2092"]
[BlackElo "1678"]
[PlyCount "75"]
[EventDate "2006.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 a6 2. d4 h6 3. Bc4 e6 4. Nc3 d6 5. Nf3 Nc6 6. d5 exd5 7. Nxd5 b5 8. Bb3 Na5 9. Nf4 Nxb3 10. axb3 Bb7 11. 0-0 Nf6 12. e5 dxe5 13. Nxe5 Bd6 14. Ng4 0-0 15. Be3 Nxg4 16. Qxg4 f5 17. Qh5 Qf6 18. c3 Be5 19. Ng6 Rfe8 20. Nxe5 Qxe5 21. Bd4 Qe6 22. b4 Qc6 23. f3 Qe6 24. Rae1 Qf7 25. Qh4 Kh7 26. Qf4 g5 27. Qd2 Bd5 28. Re3 Rxe3 29. Bxe3 c6 30. Bd4 a5 31. bxa5 Bc4 32. Ra1 Rd8 33. b4 g4 34. fxg4 fxg4 35. Qf2 Qd5 36. Re1 Rd7 37. Qc2+ Kg8 38. Qg6+ 1-0

[Event "San Francisco TNM Winter op"]
[Site "San Francisco"]
[Date "2006.01.24"]
[Round "3"]
[White "Todortsev, Victor"]
[Black "Petrison, John"]
[Result "1-0"]
[ECO "D48"]
[WhiteElo "1962"]
[BlackElo "2092"]
[PlyCount "20"]
[EventDate "2006.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. Nc3 Nf6 4. e3 Nbd7 5. d4 c6 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. 0-0 c5 10. Re1 Bb7 1-0

[Event "San Francisco TNM Winter op"]
[Site "San Francisco"]
[Date "2006.01.17"]
[Round "2"]
[White "Petrison, John"]
[Black "Hilliard, Michael"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2092"]
[BlackElo "1465"]
[PlyCount "87"]
[EventDate "2006.01.10"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 c6 2. f4 d5 3. e5 Bf5 4. d4 e6 5. Nf3 c5 6. Bd3 Bxd3 7. Qxd3 Qb6 8. c3 Nc6 9. dxc5 Bxc5 10. b4 Be7 11. Be3 Qc7 12. Nbd2 Nh6 13. Nb3 Nf5 14. Bf2 b6 15. Rc1 0-0 16. 0-0 Rfc8 17. g4 Nh6 18. h3 f6 19. b5 Nd8 20. Nbd4 fxe5 21. Nxe5 Bf6 22. Nec6 Bxd4 23. Nxd4 Qxf4 24. Bg3 Qg5 25. Qf3 Qe7 26. Rce1 Nhf7 27. Nf5 Qc5+ 28. Bf2 Qf8 29. Nd4 Ng5 30. Qxf8+ Kxf8 31. Bh4+ Kg8 32. Bxg5 Rxc3 33. Bxd8 Rxd8 34. Rxe6 Rxh3 35. Kg2 Rd3 36. Nf5 Rd2+ 37. Rf2 Rd1 38. Ne7+ Kh8 39. Nc6 Ra8 40. Re7 d4 41. Rxa7 Re8 42. Re7 Rg8 43. Rd7 d3 44. Ne5 1-0

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1984.??.??"]
[Round "?"]
[White "Corbeill, Joe"]
[Black "Petrison, John"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "90"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. Bg5 c6 7. Nbd2 Nbd7 8. c3 h6 9. Bxf6 Nxf6 10. Qb3 Qb6 11. Qxb6 axb6 12. Rfe1 Be6 13. a3 Rfe8 14. Ne5 Ng4 15. Nxg4 Bxg4 16. f3 Bd7 17. f4 f5 18. Nf3 Rec8 19. Ne5 Bxe5 20. dxe5 e6 21. Red1 Be8 22. Rd2 Ra4 23. b3 Ra7 24. e3 Rca8 25. Rda2 b5 26. Kf2 c5 27. Bf3 h5 28. Ke1 Bc6 29. Kd2 Kf7 30. Kc2 Rh8 31. h4 Rha8 32. Kb2 Ke7 33. Rd1 b4 34. cxb4 cxb4 35. a4 b5 36. Rd4 bxa4 37. Rxb4 axb3 38. Rxa7+ Rxa7 39. Rxb3 Rb7 40. Rxb7+ Bxb7 41. Kb3 Kd7 42. Be2 Kc6 43. Kb4 Kb6 44. Bb5 Bc6 45. Bd3 Be8 1/2-1/2

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1984.??.??"]
[Round "?"]
[White "Gipson, J."]
[Black "Petrison, John"]
[Result "0-1"]
[ECO "D46"]
[PlyCount "116"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 e6 2. d4 Nf6 3. Nc3 Bb4 4. Bd2 0-0 5. Nf3 d5 6. e3 c6 7. Bd3 Nbd7 8. 0-0 a6 9. Qc2 dxc4 10. Bxc4 b5 11. Bd3 c5 12. Ne4 Bxd2 13. Qxd2 c4 14. Nxf6+ Nxf6 15. Bc2 Bb7 16. a4 Qd5 17. Rfe1 Ne4 18. Qb4 f5 19. Re2 Rf6 20. axb5 a5 21. Rxa5 Rg6 22. Rxa8+ Bxa8 23. Qe7 h6 24. Qe8+ Kh7 25. Ne1 Nc3 26. Qxg6+ Kxg6 27. bxc3 Qxb5 28. f3 Qa5 29. Kf2 Qxc3 30. h4 Kf6 31. g3 g5 32. hxg5+ hxg5 33. Ng2 Qb4 34. Ne1 Bc6 35. Kg2 Ba4 36. Kf2 Bb3 37. Kf1 Qd6 38. Kf2 Qc7 39. Kg2 Qa5 40. Kf2 Qc3 41. f4 Qa5 42. Kg2 Qa8+ 43. Kg1 Ba4 44. Rh2 Kg6 45. Re2 Bc6 46. Rh2 Qa1 47. Kf1 Qc1 48. Re2 Bf3 49. Kf2 Bxe2 50. Kxe2 c3 51. Ba4 Qd2+ 52. Kf1 Qxe3 53. Be8+ Kf6 54. fxg5+ Kxg5 55. Ba4 Kf6 56. Bc2 Qxg3 57. Ke2 Qh2+ 58. Kd1 Qd2# 0-1

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1984.??.??"]
[Round "?"]
[White "Petrison, John"]
[Black "Mason, David"]
[Result "1-0"]
[ECO "A30"]
[PlyCount "74"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 b6 3. Bb2 e6 4. e3 Bb7 5. Be2 Be7 6. 0-0 0-0 7. c4 c5 8. Nc3 d6 9. Qc2 Nc6 10. Rad1 Rc8 11. d3 Qc7 12. Rd2 Rfd8 13. Ne4 Nxe4 14. dxe4 Ne5 15. Ne1 Bf6 16. f3 Nd7 17. Nd3 Bg5 18. f4 Bf6 19. Bf3 e5 20. Rfd1 Nf8 21. Nf2 Ng6 22. g3 Be7 23. Bg4 Rb8 24. h4 Bc6 25. Bh3 f6 26. h5 Nf8 27. Bg2 Qb7 28. Ng4 a6 29. Nf2 b5 30. cxb5 axb5 31. Bf3 b4 32. Be2 Ra8 33. Bc4+ Kh8 34. Bc1 Ra7 35. Qd3 Rda8 36. a4 bxa3 37. Ra2 Nd7 1-0

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1984.??.??"]
[Round "?"]
[White "Petrison, John"]
[Black "Morneau, F."]
[Result "1/2-1/2"]
[ECO "A30"]
[PlyCount "110"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. e3 0-0 5. Be2 b6 6. 0-0 Bb7 7. c4 c5 8. d3 e6 9. Nbd2 d5 10. Ne5 Nc6 11. Nxc6 Bxc6 12. Nf3 Ng4 13. Bxg7 Kxg7 14. h3 Nf6 15. Qc2 Qc7 16. Qb2 Rad8 17. Ne5 d4 18. Nxc6 Qxc6 19. b4 cxb4 20. Qxb4 dxe3 21. fxe3 Qc5 22. Qxc5 bxc5 23. Rab1 Rb8 24. Rfc1 Nd7 25. d4 Rb6 26. Rxb6 axb6 27. Bf3 e5 28. dxe5 Nxe5 29. Bd5 Nd3 30. Rb1 Nb4 31. e4 Kf6 32. a3 Nxd5 33. exd5 Ke5 34. Rxb6 Kd4 35. a4 Kxc4 36. d6 Rd8 37. a5 Kd5 38. a6 Rd7 39. Kf2 c4 40. Ke3 Kc5 41. Rb7 Rxd6 42. a7 Ra6 43. Rxf7 h5 44. Kd2 Ra2+ 45. Kc3 Ra3+ 46. Kb2 Ra6 47. Rb7 Kd4 48. Rd7+ Kc5 49. g3 Kb4 50. Rb7+ Kc5 51. g4 hxg4 52. hxg4 Kc6 53. Rg7 Kc5 54. g5 Rb6+ 55. Kc3 Ra6 1/2-1/2

[Event "Detroit East op"]
[Site "Detroit East"]
[Date "1984.??.??"]
[Round "?"]
[White "Petrison, John"]
[Black "Proszkow, T."]
[Result "1-0"]
[ECO "A05"]
[PlyCount "75"]
[EventDate "1984.??.??"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 d6 3. Bb2 e5 4. d3 Nc6 5. g3 Be7 6. Bg2 0-0 7. c4 Ne8 8. Nc3 f5 9. Nd5 Nf6 10. h4 h6 11. a3 Be6 12. Nd2 Qd7 13. e3 Rae8 14. Qc2 Nd8 15. 0-0-0 c6 16. Nxe7+ Qxe7 17. Nf3 b5 18. Nh2 a5 19. f4 Nd7 20. Nf3 Nf7 21. Bh3 Rb8 22. Rhg1 Nc5 23. d4 Nxb3+ 24. Qxb3 Bxc4 25. Qc2 e4 26. Ne1 h5 27. Bxf5 d5 28. Bg6 Nd6 29. g4 hxg4 30. Rxg4 a4 31. Qg2 Bb3 32. Nc2 Nc4 33. Rg1 Bxc2 34. Bh7+ Kh8 35. Rxg7 Qxh4 36. Rc7 Qh6 37. Rh1 Nxe3 38. Qg1 1-0

[Event "Cincinnati  op"]
[Site "Cincinnati"]
[Date "1964.07.12"]
[Round "4"]
[White "Darbes, Alex"]
[Black "Petrison, John"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "108"]
[EventDate "1964.07.11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 g6 3. e4 d6 4. Bg5 Bg7 5. Qd2 h6 6. Bf4 Nbd7 7. Nf3 Nh5 8. Be3 c6 9. g4 Nhf6 10. g5 hxg5 11. Bxg5 Qc7 12. Bf4 b5 13. Bd3 a6 14. 0-0-0 c5 15. dxc5 Qxc5 16. Be3 Qc7 17. Ng5 Qa5 18. a3 Ne5 19. f4 Nxd3+ 20. Qxd3 Bg4 21. Rdg1 0-0 22. Bd2 Qc7 23. h3 Bh5 24. Ne2 Qc4 25. Qxc4 bxc4 26. Ng3 Bh6 27. e5 Bxg5 28. Nxh5 Nxh5 29. Rxg5 dxe5 30. fxe5 e6 31. Rhg1 Kh7 32. R5g4 Rfc8 33. Rd4 Ra7 34. Ba5 Rb7 35. Rgg4 Rb5 36. Bc3 Rxe5 37. Rd7 Rf5 38. Rgd4 Nf4 39. Kd2 g5 40. Ra7 Nxh3 41. Rdd7 Kg6 42. Rxa6 Rf2+ 43. Kd1 Nf4 44. Bd4 Rf3 45. a4 g4 46. a5 g3 47. Raa7 Nd5 48. Ke2 Rf4 49. c3 g2 50. a6 Rxd4 51. Rxf7 Rg8 52. Kf2 Rd2+ 53. Kg1 Ne3 54. Rad7 Rc2 0-1

[Event "Cincinnati  op"]
[Site "Cincinnati"]
[Date "1964.07.12"]
[Round "5"]
[White "Petrison, John"]
[Black "Riesenbeck, Jack"]
[Result "0-1"]
[ECO "A14"]
[PlyCount "60"]
[EventDate "1964.07.11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. cxd5 exd5 5. Bg2 Be7 6. 0-0 0-0 7. d3 b6 8. Nc3 Bb7 9. b3 c5 10. d4 Nbd7 11. Bb2 Ne4 12. Rc1 Ndf6 13. Na4 Rc8 14. Ne1 cxd4 15. Bxd4 Rxc1 16. Qxc1 Qd7 17. Nd3 Rc8 18. Qb2 Nc5 19. Nc3 Nxd3 20. exd3 Ne8 21. Re1 Bf6 22. Ne2 Bxd4 23. Qxd4 Nc7 24. Nf4 Ne6 25. Nxe6 fxe6 26. Bh3 Re8 27. Qe5 Kf7 28. Bg4 d4 29. Qf4+ Kg8 30. Bf3 Rf8 0-1

[Event "Cincinnati  op"]
[Site "Cincinnati"]
[Date "1964.07.11"]
[Round "3"]
[White "Petrison, John"]
[Black "Duhlmeier, William"]
[Result "1/2-1/2"]
[ECO "A15"]
[PlyCount "49"]
[EventDate "1964.07.11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e5 5. 0-0 d6 6. Nc3 Be7 7. e3 h6 8. d4 Nbd7 9. d5 0-0 10. e4 c6 11. Nh4 a5 12. Nf5 Nc5 13. Re1 a4 14. Be3 Ba6 15. Bxc5 bxc5 16. Qxa4 cxd5 17. cxd5 Kh7 18. Qc2 g6 19. Ne3 Qc7 20. b3 Rfb8 21. Bf1 Bc8 22. Nb5 Qa5 23. a4 Qd8 24. Nd1 Bd7 25. Ndc3 1/2-1/2

[Event "Cincinnati  op"]
[Site "Cincinnati"]
[Date "1964.07.11"]
[Round "1"]
[White "Petrison, John"]
[Black "Ernst, Richard"]
[Result "1-0"]
[ECO "A09"]
[PlyCount "41"]
[EventDate "1964.07.11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 d4 3. e3 Nc6 4. Na3 Nf6 5. Nb5 dxe3 6. fxe3 e5 7. Be2 Bf5 8. 0-0 Bg6 9. a3 a6 10. Nc3 Qd7 11. b4 e4 12. b5 exf3 13. bxc6 Qxc6 14. Bxf3 Qxc4 15. Bxb7 Rb8 16. Rf4 Qe6 17. Qa4+ Nd7 18. Bd5 Qd6 19. Rd4 Qe7 20. Be4 c5 21. Rxd7 1-0

[Event "Cincinnati  op"]
[Site "Cincinnati"]
[Date "1964.07.11"]
[Round "2"]
[White "Trimble, Selden"]
[Black "Petrison, John"]
[Result "1/2-1/2"]
[ECO "A65"]
[PlyCount "110"]
[EventDate "1964.07.11"]
[EventCountry "USA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Bd3 Bg7 8. Nge2 a6 9. a4 0-0 10. 0-0 Nbd7 11. f4 Re8 12. Ng3 Nf8 13. h3 Bd7 14. Qf3 b6 15. e5 dxe5 16. fxe5 Rxe5 17. Bf4 Qe8 18. Bxe5 Qxe5 19. Rae1 Qd4+ 20. Kh1 Re8 21. Nge4 Kh8 22. Nd6 Rxe1 23. Rxe1 Bxa4 24. g4 Bb3 25. g5 Bxd5 26. Nxd5 Nxd5 27. Nxf7+ Kg8 28. Nh6+ Bxh6 29. gxh6 Nf4 30. Re4 Qxd3 31. Rxf4 Qxf3+ 32. Rxf3 Nd7 33. Rd3 Ne5 34. Rd8+ Kf7 35. Rh8 Kf6 36. Kg2 Nf7 37. Rb8 b5 38. Rb6+ Kg5 39. Rxa6 Ne5 40. Ra7 Kxh6 41. Rb7 b4 42. Rb5 Nd3 43. b3 Nc1 44. Rxc5 Nxb3 45. Rb5 Nd4 46. Rxb4 Nf5 47. Kf3 Ne7 48. Rh4+ Kg7 49. Kf4 Nf5 50. Rg4 Kf6 51. Rg1 Ng7 52. Rf1 Nf5 53. Ra1 Kg7 54. Kg5 h6+ 55. Kf4 Kf6 1/2-1/2

