[Event "Oslo op-B"]
[Site "Oslo"]
[Date "2014.09.28"]
[Round "1"]
[White "Carstensen, Oivind"]
[Black "Pettersson, Ola"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1633"]
[BlackElo "1997"]
[PlyCount "68"]
[EventDate "2014.09.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NOR"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nd2 c5 3. e3 cxd4 4. exd4 e6 5. Ngf3 Nc6 6. a3 d5 7. b4 Bd6 8. Bb2 0-0 9. c4 dxc4 10. Nxc4 Nd5 11. Be2 Nf4 12. Nxd6 Qxd6 13. 0-0 Rd8 14. Bc4 b6 15. Re1 Bb7 16. Bf1 Ne7 17. Ne5 Qd5 18. f3 b5 19. Re4 Nfg6 20. Qd3 Rac8 21. Rc1 Qa2 22. Rxc8 Rxc8 23. Re2 Nf4 24. Qd2 Nxe2+ 25. Bxe2 Qb1+ 26. Bd1 Nd5 27. Kf2 f6 28. Nd3 Nb6 29. Bb3 Bd5 30. Bxd5 Rc2 31. Bxe6+ Kf8 32. Ke3 Rxd2 33. Kxd2 Nc4+ 34. Kc3 Nxb2 0-1

[Event "Oslo op-B"]
[Site "Oslo"]
[Date "2014.09.28"]
[Round "3"]
[White "Keadana, Amir"]
[Black "Pettersson, Ola"]
[Result "1-0"]
[ECO "C53"]
[WhiteElo "1628"]
[BlackElo "1997"]
[PlyCount "79"]
[EventDate "2014.09.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NOR"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. 0-0 d6 6. d4 Bb6 7. d5 Nd8 8. Bg5 f6 9. Bh4 g5 10. Bg3 h5 11. h4 Nh6 12. Nfd2 Ng4 13. Bd3 Nf7 14. Nc4 gxh4 15. Bxh4 Ng5 16. a4 Qg7 17. Nxb6 axb6 18. Qe2 Bd7 19. f3 Nh6 20. Kh1 c6 21. f4 Bg4 22. Qe3 exf4 23. Qxf4 0-0 24. dxc6 bxc6 25. Qxd6 Nhf7 26. Qxf6 Qxf6 27. Rxf6 Kg7 28. Rxc6 Ne5 29. Rc7+ Kh6 30. Bb5 Nxe4 31. Na3 Nf2+ 32. Kg1 Ned3 33. Rc6+ Kg7 34. Rd6 Nc5 35. Bxf2 Rxf2 36. b4 Ne4 37. Rd4 Rf4 38. Re1 Bf5 39. Bc6 Rc8 40. Bxe4 1-0

[Event "Oslo op-B"]
[Site "Oslo"]
[Date "2014.09.28"]
[Round "7"]
[White "Nilsen, Tobias Lang"]
[Black "Pettersson, Ola"]
[Result "1/2-1/2"]
[ECO "A65"]
[WhiteElo "1652"]
[BlackElo "1997"]
[PlyCount "42"]
[EventDate "2014.09.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NOR"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. Bd3 0-0 7. Nge2 e6 8. 0-0 exd5 9. cxd5 Re8 10. Qc2 a6 11. a4 Nbd7 12. f4 Ng4 13. h3 c4 14. hxg4 cxd3 15. Qxd3 Nc5 16. Qf3 Qh4 17. f5 Nb3 18. Ra3 Nd4 19. Nxd4 Bxd4+ 20. Be3 Be5 21. Bf4 Bd4+ 1/2-1/2

[Event "Oslo op-B"]
[Site "Oslo"]
[Date "2014.09.28"]
[Round "9"]
[White "Ostby, Martin Bergsjo"]
[Black "Pettersson, Ola"]
[Result "1-0"]
[ECO "C53"]
[WhiteElo "1897"]
[BlackElo "1997"]
[PlyCount "49"]
[EventDate "2014.09.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NOR"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. 0-0 d6 6. d4 Bb6 7. h3 Nf6 8. Re1 0-0 9. Bg5 h6 10. Bh4 Kh8 11. d5 Nd8 12. a4 a6 13. a5 Ba7 14. Nbd2 Bd7 15. Nh2 g5 16. Bg3 Rg8 17. Be2 c6 18. c4 cxd5 19. cxd5 Rc8 20. Rc1 Rxc1 21. Qxc1 h5 22. h4 Ng4 23. Bxg4 gxh4 24. Ndf3 Rxg4 25. Nxg4 1-0

[Event "Oslo op-B"]
[Site "Oslo"]
[Date "2014.09.28"]
[Round "6"]
[White "Pettersson, Ola"]
[Black "Edakina, Anastasia"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1997"]
[BlackElo "1733"]
[PlyCount "72"]
[EventDate "2014.09.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NOR"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 Nc6 4. Bc4 Nf6 5. d3 e6 6. Nf3 Be7 7. 0-0 0-0 8. a3 a6 9. Qe1 b5 10. Bb3 Bb7 11. Kh1 Rc8 12. Be3 Na5 13. Ba2 c4 14. Rd1 cxd3 15. cxd3 d5 16. Bd2 Nc6 17. e5 Nd7 18. d4 b4 19. axb4 Nxb4 20. Bb1 a5 21. Ng5 h6 22. Qh4 f5 23. exf6 Rxf6 24. Bh7+ Kh8 25. Bg6 Kg8 26. Qh5 Nf8 27. Bf7+ Kh8 28. Rde1 Qb6 29. f5 Qxd4 30. Nf3 Qd3 31. Ne5 Qxd2 32. Bxe6 Rc7 33. Rd1 Qxb2 34. Nf7+ Kh7 35. Ng5+ Kh8 36. Nf7+ Kh7 1/2-1/2

[Event "Oslo op-B"]
[Site "Oslo"]
[Date "2014.09.28"]
[Round "4"]
[White "Pettersson, Ola"]
[Black "Hjelle, Oyvind"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "1997"]
[BlackElo "1357"]
[PlyCount "85"]
[EventDate "2014.09.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NOR"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. e3 Nc6 5. Bb2 d5 6. a3 Bd6 7. d4 0-0 8. Nd2 Re8 9. c4 Be6 10. c5 Bf8 11. Bb5 Bd7 12. Ne2 Ng4 13. 0-0 g6 14. h3 Nf6 15. Bd3 Bh6 16. Ng3 Ne7 17. Qc2 Qc8 18. Kh2 Nf5 19. Nxf5 gxf5 20. Nf3 Ne4 21. Rae1 c6 22. g3 Re6 23. Ne5 f6 24. Nxd7 Qxd7 25. f3 Nxg3 26. Rg1 Kh8 27. Rxg3 f4 28. Rg4 fxe3 29. Rh4 Qc7+ 30. f4 f5 31. Rf1 Rae8 32. Qe2 Rf8 33. Qf3 Qe7 34. Rh5 e2 35. Re1 Re3 36. Qf2 Rf6 37. Bxf5 Qe8 38. Qh4 Bxf4+ 39. Kh1 Rxf5 40. Rxh7+ Kg8 41. Rg1+ Rg5 42. Rh8+ Kf7 43. Qxf4+ 1-0

[Event "Oslo op-B"]
[Site "Oslo"]
[Date "2014.09.28"]
[Round "2"]
[White "Pettersson, Ola"]
[Black "Huse, Sigurd Kjelsbol"]
[Result "0-1"]
[ECO "C47"]
[WhiteElo "1997"]
[BlackElo "1720"]
[PlyCount "96"]
[EventDate "2014.09.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NOR"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5 Be7 6. Bc4 Nxe4 7. 0-0 0-0 8. Re1 Nf6 9. Nxd4 Bc5 10. Nb5 Nxd5 11. Qxd5 d6 12. Bg5 Qd7 13. Rad1 a6 14. Nc3 Qf5 15. Qd2 Ne5 16. Bb3 Bxf2+ 17. Qxf2 Qxg5 18. Nd5 Bg4 19. h4 Qd8 20. Rd4 Be6 21. h5 h6 22. c3 c6 23. Nf4 Qe7 24. Qg3 Bxb3 25. axb3 Rfe8 26. Nd3 Qf6 27. Rf1 Qe6 28. Nf4 Qe7 29. Rfd1 Rad8 30. Re4 Qc7 31. Rde1 Rf8 32. Nd3 Nxd3 33. Qxd3 Qb6+ 34. Kh1 Qc7 35. Qd4 Qd7 36. Re7 Qf5 37. g4 Qf3+ 38. Kh2 c5 39. Qc4 b5 40. Qe2 Qxe2+ 41. R1xe2 d5 42. Rd2 Rd6 43. Kg3 d4 44. cxd4 cxd4 45. Kf4 d3 46. Ke3 Rfd8 47. Rf2 d2 48. Rfxf7 Re6+ 0-1

[Event "Oslo op-B"]
[Site "Oslo"]
[Date "2014.09.28"]
[Round "5"]
[White "Roneid, Heidi"]
[Black "Pettersson, Ola"]
[Result "0-1"]
[ECO "C63"]
[WhiteElo "1675"]
[BlackElo "1997"]
[PlyCount "76"]
[EventDate "2014.09.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NOR"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d4 fxe4 5. Nxe5 Nxe5 6. dxe5 c6 7. Nc3 cxb5 8. Nxe4 d5 9. exd6 Nf6 10. 0-0 Bf5 11. Nxf6+ gxf6 12. Qh5+ Bg6 13. Qxb5+ Qd7 14. Re1+ Kd8 15. Qe2 Bxd6 16. Rd1 Re8 17. Qf3 Re6 18. Bf4 Be4 19. Qg3 Kc7 20. Rd2 Rd8 21. Rad1 Qe7 22. h3 Bc6 23. c4 Re1+ 24. Rxe1 Qxe1+ 25. Kh2 Bxf4 26. Qxf4+ Qe5 27. Qxe5+ fxe5 28. Re2 e4 29. Kg3 Rg8+ 30. Kh2 Kd6 31. g4 Rf8 32. Kg3 Rf3+ 33. Kh4 Ke5 34. Rd2 Rd3 35. Re2 Kf4 36. g5 Bd7 37. Re3 Rxe3 38. fxe3+ Kxe3 0-1

[Event "Stockholm Seniors op"]
[Site "Stockholm"]
[Date "2013.05.09"]
[Round "2"]
[White "Pettersson, Ola"]
[Black "Mochalov, Evgeny Veniaminovic"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2069"]
[BlackElo "2413"]
[PlyCount "44"]
[EventDate "2013.05.09"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "SWE"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Bc4 a6 5. a4 Nf6 6. d3 d5 7. Bb3 c4 8. dxc4 d4 9. Nce2 Nxe4 10. Nf3 Bb4+ 11. Kf1 Bc5 12. Qd3 f5 13. Bd2 0-0 14. Rd1 Qf6 15. Be1 Qh6 16. h3 Rd8 17. g4 b6 18. g5 Qh5 19. Ng3 Nxg3+ 20. Bxg3 Bb7 21. Qe2 Nb4 22. Rd3 Nxd3 0-1

[Event "Tampere We Taraus op"]
[Site "Tampere"]
[Date "2004.08.22"]
[Round "5"]
[White "Niemi, Kalle"]
[Black "Pettersson, Ola"]
[Result "1-0"]
[ECO "C63"]
[WhiteElo "2209"]
[PlyCount "51"]
[EventDate "2004.08.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "FIN"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 Bb4 5. d4 fxe4 6. Nxe5 Nxe5 7. dxe5 Qh4 8. 0-0 Bxc3 9. bxc3 Ne7 10. g3 Qh3 11. Ba3 h5 12. Re1 h4 13. Bf1 Qf5 14. Bg2 hxg3 15. hxg3 Qh7 16. Bxe7 Qh2+ 17. Kf1 Kxe7 18. Qg4 Qh6 19. Rxe4 b6 20. Rd1 Ba6+ 21. c4 Rad8 22. Red4 Bc8 23. Qe2 g5 24. Qd2 c5 25. Rd6 Qg7 26. e6 1-0

[Event "Tampere We Taraus op"]
[Site "Tampere"]
[Date "2004.08.22"]
[Round "4"]
[White "Torhola, Simo Veikko"]
[Black "Pettersson, Ola"]
[Result "0-1"]
[ECO "E70"]
[PlyCount "70"]
[EventDate "2004.08.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "FIN"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. Bd3 0-0 7. Nge2 e6 8. 0-0 exd5 9. exd5 a6 10. Bg5 Qc7 11. Qc2 Nbd7 12. Rab1 Ne5 13. Ne4 Nh5 14. N4g3 Nxg3 15. Nxg3 f5 16. f3 b5 17. b3 Bd7 18. Bd2 b4 19. Bc1 a5 20. Bb2 a4 21. f4 axb3 22. axb3 Ng4 23. Bxg7 Kxg7 24. h3 Nf6 25. Ra1 Rae8 26. Rfe1 h5 27. Kf2 h4 28. Nf1 Ne4+ 29. Bxe4 fxe4 30. Ke3 Qd8 31. Qb2+ Kh6 32. Ra6 Rxf4 33. Kd2 Rf2+ 34. Re2 Rxf1 35. Rxd6 Qg5+ 0-1

[Event "Tampere We Taraus op"]
[Site "Tampere"]
[Date "2004.08.21"]
[Round "2"]
[White "Pettersson, Ola"]
[Black "Luukkonen, Tommi"]
[Result "0-1"]
[ECO "B40"]
[BlackElo "2226"]
[PlyCount "54"]
[EventDate "2004.08.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "FIN"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. exd5 Qxd5 7. 0-0 Nf6 8. d4 Nc6 9. dxc5 Bxc5 10. Bf4 0-0-0 11. Qxd5 Nxd5 12. Bg3 f5 13. b4 Be7 14. h3 f4 15. Bh4 Bxh4 16. Nxh4 e5 17. a4 e4 18. Nf5 g6 19. b5 gxf5 20. bxc6 bxc6 21. c4 Nb4 22. Nc3 Rd4 23. Ne2 Rxc4 24. Nxf4 Nd3 25. Nxd3 exd3 26. Rfd1 Rd8 27. Kf1 c5 0-1

[Event "Tampere We Taraus op"]
[Site "Tampere"]
[Date "2004.08.21"]
[Round "3"]
[White "Pettersson, Ola"]
[Black "Sorvari, Jarmo"]
[Result "1/2-1/2"]
[ECO "B21"]
[PlyCount "125"]
[EventDate "2004.08.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "FIN"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. f4 d5 3. exd5 Nf6 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. Nf3 Nxd5 7. d3 e6 8. Nc3 Nc6 9. 0-0 Be7 10. Re1 Nxc3 11. bxc3 Bf6 12. Bd2 0-0 13. Ne5 Qc7 14. Ng4 Be7 15. Qf3 Kh8 16. f5 exf5 17. Qxf5 g6 18. Qf4 Qd6 19. Rxe7 Qxf4 20. Bxf4 Nxe7 21. Be5+ f6 22. Bxf6+ Rxf6 23. Nxf6 Kg7 24. Ne4 b6 25. Re1 Nd5 26. a3 Rd8 27. c4 Nf6 28. Ng5 Rd7 29. Re6 h6 30. Nf3 Kf7 31. Re2 Rc7 32. h3 Nh5 33. Kf2 Kg7 34. g3 Rf7 35. Kg2 Nf6 36. g4 Nd7 37. Kg3 Nb8 38. Re6 Nd7 39. h4 Nf8 40. Re8 Rf6 41. Re7+ Rf7 42. Rxf7+ Kxf7 43. Ne5+ Ke6 44. Kf4 g5+ 45. hxg5 hxg5+ 46. Ke4 Nh7 47. Nc6 Nf6+ 48. Kf3 a5 49. c3 Kd6 50. Nd8 Ke7 51. Nc6+ Kd6 52. Na7 Nd7 53. Nb5+ Ke6 54. d4 Kf6 55. Ke4 Ke6 56. Nc7+ Kd6 57. Nd5 a4 58. Ne3 Ke6 59. d5+ Kf6 60. Nd1 Ne5 61. Nb2 Nxg4 62. Nxa4 Nf2+ 63. Kf3 1/2-1/2

[Event "Tampere We Taraus op"]
[Site "Tampere"]
[Date "2004.08.21"]
[Round "2"]
[White "Puuska, Heini"]
[Black "Pettersson, Ola"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2023"]
[PlyCount "93"]
[EventDate "2004.08.20"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "FIN"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 c6 3. Bxf6 exf6 4. e3 d5 5. Nf3 Bd6 6. Be2 0-0 7. 0-0 Re8 8. Nbd2 Nd7 9. c4 dxc4 10. Nxc4 Nf8 11. Nxd6 Qxd6 12. Qa4 Bg4 13. b4 a6 14. Qb3 Rad8 15. a4 Ng6 16. Rfc1 Bxf3 17. Bxf3 f5 18. b5 axb5 19. axb5 Nh4 20. Be2 Qg6 21. Bf1 Nf3+ 22. Kh1 Nd2 23. Qb2 Nxf1 24. Rxf1 h5 25. Ra7 f4 26. Rxb7 Qd3 27. Qb1 Qxb1 28. Rxb1 fxe3 29. fxe3 cxb5 30. R7xb5 Rxe3 31. Rxh5 g6 32. Re5 Rd3 33. Re7 R3xd4 34. h3 Rd1+ 35. Rxd1 Rxd1+ 36. Kh2 Rd3 37. Ra7 Kg7 38. Rb7 g5 39. Rb4 Kg6 40. h4 gxh4 41. Rxh4 Kg5 42. Ra4 f5 43. g3 Rd5 44. Rb4 Rc5 45. Ra4 Rb5 46. Rc4 Rd5 47. Ra4 1/2-1/2

[Event "Rilton Cup 24th"]
[Site "Stockholm"]
[Date "1994.??.??"]
[Round "2"]
[White "Pettersson, Ola"]
[Black "Gamback, Bjorn"]
[Result "0-1"]
[ECO "C00"]
[BlackElo "2165"]
[PlyCount "90"]
[EventDate "1994.12.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. f4 Nc6 3. Nf3 e6 4. d3 g6 5. g3 Bg7 6. Bg2 Nge7 7. 0-0 0-0 8. Nbd2 d5 9. e5 b5 10. a4 b4 11. b3 Ba6 12. Re1 Rc8 13. Bb2 Qb6 14. Kh1 Rfd8 15. Qe2 Na5 16. Qf2 Qc7 17. g4 Bb7 18. Rad1 c4 19. bxc4 dxc4 20. Ne4 Bxe4 21. Rxe4 Qd7 22. Rd4 Qxa4 23. Ra1 Qb5 24. dxc4 Nxc4 25. Bf1 Rxd4 26. Qxd4 Qd5 27. Qxd5 Nxd5 28. Bxc4 Rxc4 29. Rxa7 Rxc2 30. Ra8+ Bf8 31. Bd4 Nxf4 32. Be3 Rc4 33. Ng5 h6 34. Nh3 g5 35. Ng1 Kg7 36. h3 Bc5 37. Bxc5 Rxc5 38. Rb8 Rc1 39. Kh2 Rc2+ 40. Kh1 Rb2 41. h4 gxh4 42. Nf3 h3 43. g5 hxg5 44. Nxg5 Nd3 45. Rb5 Nf2+ 0-1

[Event "Rilton Cup 24th"]
[Site "Stockholm"]
[Date "1994.??.??"]
[Round "6"]
[White "Pettersson, Ola"]
[Black "Ostergaard, Dan"]
[Result "0-1"]
[ECO "B21"]
[BlackElo "2245"]
[PlyCount "68"]
[EventDate "1994.12.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. f4 d5 3. exd5 Nf6 4. Bb5+ Bd7 5. Nc3 Bxb5 6. Nxb5 Qd7 7. c4 Nxd5 8. cxd5 Qxb5 9. Qf3 Nd7 10. Ne2 Nf6 11. Nc3 Qd7 12. 0-0 Rd8 13. Qf2 b6 14. d4 cxd4 15. Qxd4 e6 16. Be3 Bc5 17. Qe5 Bxe3+ 18. Qxe3 Nxd5 19. Nxd5 Qxd5 20. f5 0-0 21. f6 Qd4 22. Qxd4 Rxd4 23. fxg7 Rc8 24. Rf2 Kxg7 25. Raf1 f5 26. h3 h5 27. Re1 Kf6 28. Rfe2 Rc6 29. Kf2 Rd5 30. Kf3 Rd3+ 31. Kf2 h4 32. Rg1 e5 33. Rge1 e4 34. Re3 Rxe3 0-1

[Event "Rilton Cup 24th"]
[Site "Stockholm"]
[Date "1994.??.??"]
[Round "8"]
[White "Pettersson, Ola"]
[Black "Von Bahr, Oskar"]
[Result "0-1"]
[ECO "B25"]
[BlackElo "2150"]
[PlyCount "64"]
[EventDate "1994.12.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. f4 Nc6 3. Nf3 e6 4. d3 d6 5. g3 g6 6. Bg2 Bg7 7. 0-0 Nge7 8. Nc3 0-0 9. Be3 Nd4 10. Qd2 Bd7 11. Rae1 Qb6 12. Nd1 Qa6 13. Bxd4 cxd4 14. g4 Qxa2 15. Qb4 Nc6 16. Qxd6 Rfd8 17. Qc5 Rac8 18. Qg5 Nb4 19. Re2 Ba4 20. b3 Bxb3 21. Qh4 Bxc2 22. Nf2 Qa6 23. e5 Bxd3 24. Nxd3 Qxd3 25. Ref2 Qe3 26. Kh1 d3 27. Nd2 Rd7 28. Ne4 d2 29. Nf6+ Bxf6 30. exf6 Qc5 31. Bxb7 d1Q 32. Bxc8 Qdd5+ 0-1

[Event "Stockholm op"]
[Site "Stockholm"]
[Date "1993.??.??"]
[Round "?"]
[White "Kyhle, Bo"]
[Black "Pettersson, Ola"]
[Result "1-0"]
[ECO "D74"]
[WhiteElo "2235"]
[PlyCount "61"]
[EventDate "1993.12.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. c4 0-0 5. Nc3 c6 6. d4 d5 7. cxd5 Nxd5 8. 0-0 Nc7 9. h3 Nd7 10. e4 e5 11. Bg5 Qe8 12. Be3 exd4 13. Bxd4 Ne5 14. Nxe5 Bxe5 15. Bc5 Ne6 16. Bxf8 Qxf8 17. Qd2 Nd4 18. f4 Bc7 19. Kh2 Qg7 20. Rad1 Ne6 21. e5 Nc5 22. b4 Ne6 23. Ne4 Bb6 24. Nf6+ Kh8 25. Ne8 Qf8 26. Nd6 Nd4 27. Qb2 Nf5 28. e6+ f6 29. Nxf5 gxf5 30. Rfe1 Bd8 31. Rxd8 1-0

[Event "Stockholm op"]
[Site "Stockholm"]
[Date "1993.??.??"]
[Round "?"]
[White "Sjoberg, Mats"]
[Black "Pettersson, Ola"]
[Result "1-0"]
[ECO "E70"]
[WhiteElo "2475"]
[PlyCount "83"]
[EventDate "1993.12.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. Bd3 0-0 7. Nge2 e6 8. Bg5 h6 9. Bh4 g5 10. Bg3 e5 11. h4 g4 12. h5 Qa5 13. Qd2 Nh7 14. Bh4 f6 15. Ng3 Ng5 16. Nd1 Qxd2+ 17. Kxd2 a6 18. Ne3 Rf7 19. a4 a5 20. Be2 Bf8 21. Bxg4 Bxg4 22. Nxg4 Nd7 23. f3 Nb6 24. b3 Rd8 25. Nf5 Kh7 26. Kd3 Nc8 27. Be1 b6 28. Bc3 Ne7 29. f4 Nxf5 30. fxg5 hxg5 31. exf5 Rc8 32. h6 Be7 33. Nf2 Rh8 34. Ne4 Kg8 35. Rh5 Rfh7 36. Rah1 Kf7 37. Bd2 Rg8 38. Be3 Ke8 39. b4 axb4 40. a5 bxa5 41. Ra1 Rgh8 42. Rxa5 1-0

[Event "Taby op"]
[Site "Taby"]
[Date "1991.??.??"]
[Round "3"]
[White "Wahlstedt, Anders"]
[Black "Pettersson, Ola"]
[Result "0-1"]
[ECO "A77"]
[PlyCount "54"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 g6 4. c4 Bg7 5. Nc3 d6 6. e4 0-0 7. Be2 e6 8. 0-0 exd5 9. cxd5 Re8 10. Nd2 a6 11. a4 Nbd7 12. Nc4 Nxe4 13. Nxe4 Rxe4 14. Nxd6 Rd4 15. Qb3 Nb6 16. Nxc8 Rxc8 17. a5 Rb4 18. Qa2 Ra4 19. Qb1 Rxa1 20. Qxa1 Nxd5 21. Bf3 Rc7 22. Rd1 Rd7 23. Qa4 Qe7 24. Qe4 Bd4 25. Qxe7 Nxe7 26. g4 Nc6 27. Bxc6 Bxf2+ 0-1

[Event "SWE-chT corr"]
[Site "Sweden"]
[Date "1974.??.??"]
[Round "?"]
[White "Wennerstroem, H."]
[Black "Pettersson, Ola"]
[Result "1-0"]
[ECO "B09"]
[PlyCount "53"]
[EventDate "1974.??.??"]
[EventType "game (corr)"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. dxc5 Qa5 7. Bd3 Qxc5 8. Qe2 Bg4 9. Be3 Qa5 10. Qf2 Nc6 11. Nd4 Bd7 12. h3 0-0 13. 0-0 Qc7 14. Rae1 a6 15. Nf3 Nb4 16. Qh4 Bb5 17. Rd1 d5 18. e5 Ne4 19. f5 Bxd3 20. cxd3 Nxc3 21. bxc3 Nc2 22. Bh6 f6 23. Rc1 Qb6+ 24. d4 Na3 25. fxg6 hxg6 26. exf6 exf6 27. Qg3 1-0

