[Event "SWE-chT 0809"]
[Site "Sweden"]
[Date "2009.02.28"]
[Round "8"]
[White "Lundvik, Jonas"]
[Black "Ostberg, Peter"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "2362"]
[BlackElo "2231"]
[PlyCount "97"]
[EventDate "2008.10.25"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "SWE"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. e3 g6 4. Nc3 Bg7 5. Qb3 Nf6 6. Be2 0-0 7. 0-0 dxc4 8. Bxc4 b5 9. Be2 Na6 10. d3 Qb6 11. e4 Be6 12. Qc2 c5 13. Be3 Nb4 14. Qd2 Ng4 15. Bg5 Nc6 16. Rac1 Rfd8 17. h3 Nf6 18. Qe3 Rd7 19. b3 Nd4 20. Bxf6 Bxf6 21. e5 Bg7 22. Ne4 Nxe2+ 23. Qxe2 Rd5 24. Qe3 Bxe5 25. Nxe5 Rxe5 26. Rxc5 Rxc5 27. Nxc5 Bd5 28. Qxe7 Qc6 29. Ne4 Bxe4 30. Qxe4 Qxe4 31. dxe4 Rc8 32. f3 Rc2 33. Rf2 Rc1+ 34. Kh2 Kf8 35. g4 Ke7 36. Rd2 Ra1 37. Kg3 b4 38. Kf4 a5 39. h4 Ke6 40. e5 h6 41. Rd6+ Ke7 42. h5 gxh5 43. gxh5 Rxa2 44. Rxh6 Kf8 45. Ra6 a4 46. bxa4 b3 47. Kg5 b2 48. Rb6 Rxa4 49. Rxb2 1-0

[Event "SWE-chT 0809"]
[Site "Sweden"]
[Date "2009.02.07"]
[Round "7"]
[White "Olausson, Claes Goran"]
[Black "Ostberg, Peter"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2369"]
[BlackElo "2231"]
[PlyCount "75"]
[EventDate "2008.10.25"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "SWE"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 d5 3. c4 c6 4. Qc2 g6 5. Bf4 Bf5 6. Qb3 Qb6 7. e3 Bg7 8. Nbd2 Nbd7 9. h3 Qxb3 10. axb3 Ne4 11. c5 Nxd2 12. Kxd2 f6 13. b4 e5 14. Bg3 Be4 15. Ne1 h5 16. f3 Bf5 17. b5 Bh6 18. f4 exd4 19. exd4 Kf7 20. Nd3 Rhe8 21. Nb4 Re4 22. bxc6 Rxd4+ 23. Kc3 Rxb4 24. Kxb4 bxc6 25. Ra5 Rb8+ 26. Kc3 Re8 27. Bf2 Bxf4 28. Bd3 Bxd3 29. Kxd3 Bb8 30. Re1 Ne5+ 31. Kc2 Re7 32. Ra6 g5 33. Bd4 Re6 34. Re3 Ke7 35. Bxe5 Rxe5 36. Rb3 Bc7 37. Rb7 Kd8 38. Rxc6 1-0

[Event "SWE-chT 0809"]
[Site "Sweden"]
[Date "2008.10.25"]
[Round "1"]
[White "Olsson, Linus"]
[Black "Ostberg, Peter"]
[Result "1-0"]
[ECO "D47"]
[WhiteElo "2443"]
[BlackElo "2231"]
[PlyCount "89"]
[EventDate "2008.10.25"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "SWE"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. a3 a6 10. b4 a5 11. Rb1 axb4 12. axb4 Bd6 13. Bd2 e5 14. 0-0 0-0 15. Qc2 Re8 16. Ng5 g6 17. Nge4 Bf8 18. Rfd1 Qb6 19. Nxf6+ Nxf6 20. dxe5 Rxe5 21. Ne2 Ree8 22. Nf4 Bg7 23. Bc3 Ng4 24. Bxg7 Kxg7 25. h3 Ne5 26. Be2 Rad8 27. Qc3 Kg8 28. Rd4 Rxd4 29. exd4 Nc4 30. Bf3 Qc7 31. g3 Ra8 32. Ra1 Rd8 33. h4 h5 34. Rd1 Ra8 35. Ra1 Rd8 36. Be2 Qb6 37. Rd1 Nd6 38. Qc5 Qa6 39. Qg5 Re8 40. Bd3 Qa4 41. Rb1 Ne4 42. Bxe4 Rxe4 43. Nxg6 Rxd4 44. Nf4+ Kf8 45. Qc5+ 1-0

[Event "SWE-chT2 0708"]
[Site "Sweden"]
[Date "2008.03.09"]
[Round "9"]
[White "Ostberg, Peter"]
[Black "Lundin, Anders"]
[Result "0-1"]
[ECO "A75"]
[WhiteElo "2236"]
[BlackElo "2180"]
[PlyCount "130"]
[EventDate "2007.10.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "Orgryte"]
[BlackTeam "Passanten"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "SWE"]

1. Nf3 Nf6 2. d4 e6 3. c4 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 a6 8. a4 Bg4 9. Be2 Bg7 10. Nd2 Bxe2 11. Qxe2 0-0 12. 0-0 Nbd7 13. Nc4 Nb6 14. Na3 Re8 15. Qc2 Qc7 16. a5 Nbd7 17. Nc4 b5 18. axb6 Nxb6 19. Na5 Nfd7 20. Bf4 Ne5 21. Bxe5 Bxe5 22. Nc6 Bg7 23. Rad1 Nc4 24. Na4 Na5 25. Nd4 Qb7 26. Ne2 Qb3 27. Qxb3 Nxb3 28. f3 Rab8 29. Nac3 Nd4 30. Rd2 Rb4 31. Re1 Reb8 32. Nd1 Rb3 33. Nxd4 Bxd4+ 34. Kf1 a5 35. Ree2 Be5 36. h3 a4 37. Rc2 R8b4 38. Kf2 Bd4+ 39. Kg3 h5 40. h4 Kg7 41. Kh2 Be5+ 42. Kh3 Bd4 43. Kh2 a3 44. bxa3 Rxa3 45. Ra2 Rxa2 46. Rxa2 Rb1 47. Rd2 Be5+ 48. g3 c4 49. Ne3 c3 50. Re2 Bd4 51. Nc2 Bc5 52. f4 Rd1 53. Kg2 Rd2 54. Kf3 Rd3+ 55. Kg2 f5 56. exf5 gxf5 57. Ne1 Rxd5 58. Nf3 Rd1 59. Rc2 Rd3 60. Ra2 Be3 61. Kf1 Bc5 62. Kg2 d5 63. Ra5 Be3 64. Rb5 c2 65. Rb7+ Kf6 0-1

[Event "SWE-chT2 0708"]
[Site "Sweden"]
[Date "2008.03.08"]
[Round "8"]
[White "Fallman, Mikael"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2097"]
[BlackElo "2236"]
[PlyCount "96"]
[EventDate "2007.10.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "Upsala II"]
[BlackTeam "Orgryte"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "SWE"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 0-0 7. 0-0 dxc4 8. Qc2 a6 9. Qxc4 b5 10. Qc2 Bb7 11. Rc1 Bd6 12. Be1 Nbd7 13. Ba5 Qe7 14. Nbd2 c5 15. dxc5 Nxc5 16. Nb3 Rac8 17. Nxc5 Bxc5 18. Qd1 Ng4 19. e3 e5 20. Nh4 Nxe3 21. fxe3 Bxe3+ 22. Kh1 Bxg2+ 23. Kxg2 Qb7+ 24. Kh3 Bxc1 25. Rxc1 Rxc1 26. Qxc1 Qd7+ 27. Kg2 Rc8 28. Qb1 Qd5+ 29. Kh3 e4 30. Bc3 Qe6+ 31. g4 Rd8 32. Nf5 h5 33. Kg2 hxg4 34. Nxg7 Qc4 35. Qf1 Qxf1+ 36. Kxf1 b4 37. Bf6 Rd3 38. Ke2 Kh7 39. Ne8 Kg6 40. Bh4 f5 41. Nc7 f4 42. Nxa6 Rh3 43. Be1 Rxh2+ 44. Kf1 f3 45. Nxb4 e3 46. Kg1 f2+ 47. Bxf2 exf2+ 48. Kf1 g3 0-1

[Event "SWE-chT2 0708"]
[Site "Sweden"]
[Date "2008.03.07"]
[Round "7"]
[White "Ostberg, Peter"]
[Black "Backelin, Rikard"]
[Result "0-1"]
[ECO "E10"]
[WhiteElo "2236"]
[BlackElo "2404"]
[PlyCount "48"]
[EventDate "2007.10.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "Orgryte"]
[BlackTeam "Farsta"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "SWE"]

1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. d5 b5 5. Bg5 h6 6. Bxf6 Qxf6 7. Qc2 bxc4 8. Nc3 Na6 9. e4 Nb4 10. Qd2 Ba6 11. Rd1 Nd3+ 12. Bxd3 cxd3 13. e5 Qf5 14. 0-0 Be7 15. Rfe1 0-0 16. Re4 exd5 17. Ra4 Bb7 18. Rf4 Qg6 19. h3 d4 20. Nb5 Qc6 21. Rg4 f5 22. exf6 Rxf6 23. Na3 Rxf3 24. gxf3 Qxf3 0-1

[Event "SWE-chT2 0708"]
[Site "Sweden"]
[Date "2008.02.24"]
[Round "6"]
[White "Ostberg, Peter"]
[Black "Ornstein, Axel"]
[Result "0-1"]
[ECO "B63"]
[WhiteElo "2236"]
[BlackElo "2446"]
[PlyCount "78"]
[EventDate "2007.10.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "Orgryte"]
[BlackTeam "Eksjo"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "SWE"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Qb6 8. Nb3 Be7 9. 0-0-0 0-0 10. Be3 Qc7 11. f4 a6 12. Be2 b5 13. Bf3 b4 14. Na4 Rb8 15. Qf2 Nd7 16. g4 Na5 17. Nxa5 Qxa5 18. b3 Bb7 19. Kb1 Bc6 20. Nb2 Qc7 21. Nc4 Bb5 22. Nd2 Rfc8 23. Rc1 a5 24. Be2 a4 25. Rhd1 Bf6 26. Nc4 Bxc4 27. Bxc4 Nb6 28. Bxb6 Rxb6 29. g5 Bc3 30. f5 Re8 31. fxe6 fxe6 32. Rd3 g6 33. Rf1 Bg7 34. Rf3 d5 35. exd5 Qe5 36. c3 exd5 37. Qxb6 bxc3 38. Bxd5+ Qxd5 39. Qb4 Qd2 0-1

[Event "SWE-chT2 0708"]
[Site "Sweden"]
[Date "2008.02.23"]
[Round "6"]
[White "Ostberg, Peter"]
[Black "Elenius, Erik"]
[Result "1-0"]
[ECO "B87"]
[WhiteElo "2236"]
[BlackElo "2184"]
[PlyCount "109"]
[EventDate "2007.10.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "Orgryte"]
[BlackTeam "Vastervik"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "SWE"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. 0-0 Be7 9. Qf3 Qc7 10. Qg3 0-0 11. Bh6 Ne8 12. Be3 Nf6 13. f3 Re8 14. a4 b4 15. Na2 Qb7 16. a5 d5 17. e5 Nfd7 18. f4 Nc6 19. Ba4 Nxd4 20. Bxd4 Rd8 21. Qf2 g6 22. Nc1 Qc7 23. Nd3 Bb7 24. Rfc1 Bc6 25. c3 Bxa4 26. Rxa4 Qc6 27. b3 bxc3 28. Rxc3 Qb5 29. Qc2 Rab8 30. b4 Qb7 31. Rc7 Qb5 32. h3 Rb7 33. Rc6 Rbb8 34. Ba7 Ra8 35. Bf2 Kg7 36. Ra1 Rab8 37. Rb1 Rb7 38. Bd4 Kf8 39. g4 Nb8 40. Rc3 Nd7 41. Rb2 Rbb8 42. Rc6 Kg8 43. Kh2 Bf8 44. f5 exf5 45. gxf5 Rdc8 46. Rxc8 Rxc8 47. Qxc8 Qxd3 48. Qc3 Qxf5 49. Rf2 Qe4 50. b5 axb5 51. a6 Bh6 52. a7 Bf4+ 53. Kg1 Qb1+ 54. Rf1 Qa2 55. Rxf4 1-0

[Event "SWE-chT2 0708"]
[Site "Sweden"]
[Date "2008.02.02"]
[Round "6"]
[White "Ostberg, Peter"]
[Black "Eriksson, Mats"]
[Result "0-1"]
[ECO "C22"]
[WhiteElo "2236"]
[BlackElo "2197"]
[PlyCount "35"]
[EventDate "2007.10.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "Orgryte"]
[BlackTeam "Manhem II"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "SWE"]

1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Bb4+ 5. Nc3 Nf6 6. Bd2 0-0 7. 0-0-0 Re8 8. Qg3 Nxe4 9. Nxe4 Rxe4 10. Bg5 Be7 11. h4 d5 12. f3 Re6 13. Bc4 Rd6 14. Bb3 Na5 15. Bf4 Nxb3+ 16. axb3 Rg6 17. Qh2 Bd6 18. Ne2 0-1

[Event "SWE-chT2 0708"]
[Site "Sweden"]
[Date "2008.01.12"]
[Round "4"]
[White "Ostberg, Peter"]
[Black "Lehtonen, Ture"]
[Result "1/2-1/2"]
[ECO "A90"]
[WhiteElo "2236"]
[BlackElo "2154"]
[PlyCount "64"]
[EventDate "2007.10.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "Orgryte"]
[BlackTeam "Lundby"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "SWE"]

1. Nf3 e6 2. c4 d5 3. d4 c6 4. g3 Bd6 5. Bg2 f5 6. 0-0 Nf6 7. b3 Qe7 8. Ne5 0-0 9. Nd3 b6 10. Bf4 Bxf4 11. Nxf4 Bb7 12. Nc3 Ne4 13. Qc2 Nd7 14. Rad1 Nxc3 15. Qxc3 g5 16. Nd3 f4 17. Rfe1 Qf6 18. e4 Rae8 19. cxd5 exd5 20. exd5 Rxe1+ 21. Rxe1 fxg3 22. fxg3 c5 23. Re6 Qf5 24. dxc5 Bxd5 25. Re7 Rf6 26. Bxd5+ Kf8 27. Qe1 Qxd5 28. Rxh7 Qd4+ 29. Kg2 Qd5+ 30. Kg1 Qd4+ 31. Kg2 Qd5+ 32. Kg1 Qd4+ 1/2-1/2

[Event "SWE-chT2 0708"]
[Site "Sweden"]
[Date "2007.10.21"]
[Round "2"]
[White "Lindgren, Fredrik"]
[Black "Ostberg, Peter"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2279"]
[BlackElo "2242"]
[PlyCount "109"]
[EventDate "2007.10.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "Umea Rockaden"]
[BlackTeam "Orgryte"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "SWE"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. 0-0 Be7 7. e5 Ne4 8. Nxd4 Nc5 9. Nf5 Bf8 10. Qg4 Ne6 11. Re1 g6 12. Nh6 Bg7 13. Bb3 Nxe5 14. Qg3 d6 15. Nc3 c6 16. Bf4 Qf6 17. Bxe5 dxe5 18. Ng4 Qf4 19. Nxe5 Qxg3 20. hxg3 0-0 21. Na4 Re8 22. Nb6 Rb8 23. Rad1 Ng5 24. Nxf7 Rxe1+ 25. Rxe1 Nxf7 26. Re7 Bf5 27. Rxf7 Kh8 28. Nd7 Rd8 29. Nf6 Rd1+ 30. Kh2 Rd2 31. Ne8 Rd7 32. Rxd7 Bxd7 33. Nxg7 Kxg7 34. f3 Kf6 35. g4 g5 36. Kg3 Ke5 37. Kf2 b5 38. Ke3 c5 39. c3 a5 40. Bc2 h6 41. a3 a4 42. Bd3 Kd5 43. g3 Ke5 44. Bb1 Bc6 45. Bg6 Kf6 46. Be4 Bd7 47. Ba8 Ke5 48. Bb7 Be8 49. Ba6 Bc6 50. c4 b4 51. Bb5 Bxb5 52. cxb5 Kd5 53. f4 c4 54. Kd2 c3+ 55. Kc2 1-0

[Event "SWE-chT2 0708"]
[Site "Sweden"]
[Date "2007.10.20"]
[Round "1"]
[White "Bator, Zbigniew"]
[Black "Ostberg, Peter"]
[Result "1/2-1/2"]
[ECO "D47"]
[WhiteElo "2298"]
[BlackElo "2242"]
[PlyCount "106"]
[EventDate "2007.10.20"]
[EventType "team"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]
[WhiteTeam "Stockholm Rockaden II"]
[BlackTeam "Orgryte"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "SWE"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Be2 Bb7 9. 0-0 a6 10. e4 b4 11. e5 bxc3 12. exf6 cxb2 13. fxg7 Bxg7 14. Bxb2 c5 15. Rb1 Be4 16. Bd3 Bxf3 17. Qxf3 Rb8 18. Qg3 Bf6 19. Rfd1 cxd4 20. Bxa6 Qa5 21. Bc4 Rb4 22. Bb3 Be5 23. Qg4 h5 24. Qh3 Nc5 25. Rbc1 Ke7 26. Rc4 Rxc4 27. Bxc4 Qa4 28. Bb3 Qb4 29. Bxd4 Bxd4 30. Qh4+ f6 31. Qxd4 Qxd4 32. Rxd4 Rb8 33. Rd1 Nxb3 34. Rb1 Kd6 35. Rxb3 Rc8 36. Rd3+ Ke5 37. g3 Ra8 38. a3 Ra4 39. h3 f5 40. Rb3 Kf6 41. Kg2 h4 42. gxh4 Rxh4 43. Rb4 Rh7 44. Ra4 e5 45. Ra6+ Kg5 46. Ra8 Kf4 47. Rb8 Rg7+ 48. Kf1 Rd7 49. Rb3 Rc7 50. Kg2 Rc2 51. Rg3 Ke4 52. Rg8 f4 53. Re8 Kf5 1/2-1/2

[Event "SWE AM2001"]
[Site "Sweden"]
[Date "2001.??.??"]
[Round "3"]
[White "Andersson, Christian"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "B45"]
[WhiteElo "1483"]
[BlackElo "2250"]
[PlyCount "50"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be3 Bb4 7. f3 0-0 8. Be2 d5 9. Nxc6 bxc6 10. e5 Nd7 11. f4 c5 12. Bd2 f6 13. exf6 Nxf6 14. 0-0 Rb8 15. b3 Bd7 16. Nb1 Ne4 17. Bxb4 Rxb4 18. c4 Qf6 19. Nd2 Qd4+ 20. Kh1 Nxd2 21. Re1 dxc4 22. Bxc4 Nxc4 23. bxc4 Rxc4 24. Qxd4 cxd4 25. g3 Bc6+ 0-1

[Event "SWE AM2001"]
[Site "Sweden"]
[Date "2001.??.??"]
[Round "11"]
[White "Bjorklund, Thomas"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1810"]
[BlackElo "2266"]
[PlyCount "76"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 e6 4. d4 d5 5. exd5 exd5 6. Bb5 Bd6 7. Be3 cxd4 8. Nxd4 Nge7 9. Nd2 0-0 10. N2f3 Bg4 11. Qd2 Qc7 12. h3 Bd7 13. Bd3 a6 14. Ng5 g6 15. Ngf3 Rfe8 16. 0-0-0 Na5 17. g3 Nc4 18. Bxc4 Qxc4 19. Nb3 Qa4 20. Kb1 Bf5+ 21. Ka1 Be4 22. Nh4 Bxh1 23. Rxh1 Qe4 24. f3 Qe6 25. Nd4 Qd7 26. Rg1 Nc6 27. g4 Nxd4 28. Bxd4 Be5 29. f4 Bxd4 30. Qxd4 Qe7 31. Ng2 Qe4 32. Qd2 Qe2 33. Rd1 Qxd2 34. Rxd2 Re4 35. a3 Rae8 36. Rxd5 Re2 37. Nh4 R8e3 38. f5 g5 0-1

[Event "SWE AM2001"]
[Site "Sweden"]
[Date "2001.??.??"]
[Round "9"]
[White "Friborg, Johan"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "E43"]
[WhiteElo "1406"]
[BlackElo "2250"]
[PlyCount "90"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Qc2 Bb7 6. Bd2 0-0 7. Nf3 d5 8. cxd5 exd5 9. Bd3 c5 10. a3 Bxc3 11. Bxc3 c4 12. Bf5 g6 13. Bh3 Nc6 14. g3 Re8 15. 0-0 Bc8 16. Bg2 Bf5 17. Qd1 Ne4 18. Nd2 b5 19. Nxe4 Bxe4 20. Bxe4 Rxe4 21. Qd2 a5 22. Ra2 Rb8 23. Qc1 Qd7 24. Qd1 h5 25. Qf3 Rbe8 26. Rb1 Qh3 27. b3 b4 28. axb4 axb4 29. Be1 cxb3 30. Rd2 Qe6 31. Rd3 h4 32. Bd2 h3 33. Qd1 Qf5 34. Rdxb3 Nxd4 35. exd4 Re2 36. Bf4 g5 37. Re3 gxf4 38. Rxe8+ Rxe8 39. g4 Qe4 40. f3 Qe3+ 41. Kf1 Rc8 42. Rb3 Rc1 43. Rxe3 Rxd1+ 44. Ke2 fxe3 45. Kxd1 b3 0-1

[Event "SWE AM2001"]
[Site "Sweden"]
[Date "2001.??.??"]
[Round "14"]
[White "Heikkinen, Mikael"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1486"]
[BlackElo "2266"]
[PlyCount "100"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. f4 e6 3. c3 Nf6 4. e5 Nd5 5. d4 d6 6. Nf3 cxd4 7. cxd4 Nc6 8. Nc3 dxe5 9. fxe5 Bb4 10. Qd3 b6 11. a3 Be7 12. Be2 Bb7 13. 0-0 Nxc3 14. bxc3 Rc8 15. Bd1 Na5 16. Ba4+ Bc6 17. Bxc6+ Rxc6 18. Nd2 Qd5 19. Rf3 Nc4 20. Ne4 h6 21. Rg3 Bf8 22. Rh3 Kd8 23. Qf3 Kc8 24. Ng5 Qxf3 25. gxf3 Rc7 26. f4 Rg8 27. Ne4 Be7 28. Kf1 Kb7 29. Ke2 Rgc8 30. Rg3 g6 31. Nd2 h5 32. Nxc4 Rxc4 33. Bb2 b5 34. Kd2 Kc6 35. a4 Rxa4 36. Rxa4 bxa4 37. Kc2 Kd5 38. Kd3 Rc4 39. Rg1 Rc7 40. Ra1 Rc4 41. Ba3 Bd8 42. Rb1 a6 43. Bc5 Ba5 44. Rc1 h4 45. h3 a3 46. Bxa3 Ra4 47. Bc5 Ra2 48. Rf1 Rg2 49. Rf3 Kc6 50. Kc4 Rg3 0-1

[Event "SWE AM2001"]
[Site "Sweden"]
[Date "2001.??.??"]
[Round "1"]
[White "Johanson, Bjorn"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1594"]
[BlackElo "2250"]
[PlyCount "48"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Qxd4 e6 6. Nf3 Nc6 7. Qg4 f5 8. exf6 Nxf6 9. Qg3 Bc5 10. Bd3 0-0 11. 0-0 d5 12. Bg5 Bd6 13. Qh4 h6 14. Bxf6 Rxf6 15. Nbd2 Qe8 16. c4 Bf4 17. cxd5 exd5 18. g4 Bxd2 19. Nxd2 Rf4 20. h3 Qf7 21. Rae1 Bd7 22. Nb3 Rf8 23. Nc5 Nd4 24. Be2 Bb5 0-1

[Event "SWE AM2001"]
[Site "Sweden"]
[Date "2001.??.??"]
[Round "13"]
[White "Marklinder, Allan"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "A02"]
[WhiteElo "1706"]
[BlackElo "2250"]
[PlyCount "47"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. f4 Nf6 2. b3 g6 3. Bb2 Bg7 4. Nf3 0-0 5. e3 c5 6. c4 d6 7. Bd3 Nc6 8. 0-0 e5 9. fxe5 dxe5 10. Be2 e4 11. Ne5 Nxe5 12. Bxe5 Qe7 13. Bb2 Bf5 14. g4 Nxg4 15. Bxg7 Qh4 16. Bxg4 Bxg4 17. Bf6 Qxf6 18. Qxg4 Qxa1 19. Nc3 Qb2 20. Nxe4 f5 21. Qh3 fxe4 22. Qe6+ Kh8 23. Rf7 Rxf7 24. Qxf7 0-1

[Event "SWE AM2001"]
[Site "Sweden"]
[Date "2001.??.??"]
[Round "2"]
[White "Ostberg, Peter"]
[Black "Johansson, Eva"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2250"]
[BlackElo "1840"]
[PlyCount "48"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. Qd2 Qa5 6. 0-0-0 Nbd7 7. Kb1 Ng4 8. Bc4 Nxe3 9. Qxe3 Bg7 10. f4 Nb6 11. Bb3 e6 12. Nf3 Nd7 13. f5 Nf6 14. fxe6 Bxe6 15. d5 Bd7 16. dxc6 Bxc6 17. Nd5 Bxd5 18. exd5+ Kd8 19. Qf4 Qc7 20. Rhe1 b5 21. Nd4 Nh5 22. Qe3 Bxd4 23. Qxd4 Rg8 24. g4 Ng7 1-0

[Event "SWE AM2001"]
[Site "Sweden"]
[Date "2001.??.??"]
[Round "15"]
[White "Ostberg, Peter"]
[Black "Jonsson, Sverrir"]
[Result "1/2-1/2"]
[ECO "C13"]
[WhiteElo "2266"]
[BlackElo "1823"]
[PlyCount "39"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bg5 c5 8. dxc5 Qxd1+ 9. Rxd1 Bxc5 10. Bb5+ Ke7 11. 0-0 h6 12. Bf4 Bd7 13. Bxd7 Nxd7 14. c3 g5 15. Bg3 f5 16. b4 f4 17. bxc5 fxg3 18. c6 gxh2+ 19. Kxh2 bxc6 20. Rd4 1/2-1/2

[Event "SWE AM2001"]
[Site "Sweden"]
[Date "2001.??.??"]
[Round "4"]
[White "Ostberg, Peter"]
[Black "Orava, Ari"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "2250"]
[BlackElo "1436"]
[PlyCount "75"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. Nc3 e6 5. Bg5 Be7 6. e3 Ne4 7. Bxe7 Qxe7 8. Nxe4 dxe4 9. Nd2 f5 10. Qh5+ Qf7 11. Qh4 Qf6 12. Qxf6 gxf6 13. Be2 Rg8 14. g3 b6 15. b4 Bb7 16. Nb3 Nd7 17. c5 b5 18. a4 a6 19. Na5 Rb8 20. axb5 axb5 21. Nxb7 Rxb7 22. Ra6 Nb8 23. Ra5 Rgg7 24. Kd2 Ra7 25. Rha1 Rxa5 26. Rxa5 Rb7 27. Ra8 Kf7 28. f3 Kg6 29. Ke1 h5 30. Kf2 exf3 31. Bxf3 Kg5 32. h4+ Kg6 33. Bd1 e5 34. Bc2 e4 35. Bb3 Kg7 36. Be6 Nd7 37. Bxf5 Nf8 38. Bxe4 1-0

[Event "SWE AM2001"]
[Site "Sweden"]
[Date "2001.??.??"]
[Round "12"]
[White "Ostberg, Peter"]
[Black "Prica, Nicola"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2250"]
[BlackElo "1300"]
[PlyCount "99"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 Bg4 3. Qb3 b6 4. cxd5 Bxf3 5. Qxf3 Qd6 6. Nc3 Nd7 7. d4 Ngf6 8. e4 Qb4 9. e5 Ng8 10. Qd3 a6 11. Be2 e6 12. dxe6 fxe6 13. a3 Qe7 14. Bf3 Ra7 15. Bc6 Kd8 16. 0-0 h6 17. f4 Nb8 18. Bf3 Qd7 19. Be3 Ne7 20. Rfd1 Nf5 21. Bf2 Kc8 22. Rac1 Nc6 23. d5 exd5 24. e6 Qxe6 25. Bxd5 Qf6 26. Bxc6 Bd6 27. Nd5 Qg6 28. Nxb6+ Kb8 29. Nd7+ Kc8 30. Bxa7 Qg4 31. Nb6+ Kd8 32. Nc4 Qxf4 33. Nxd6 Nxd6 34. Bf2 Rf8 35. Bg3 Qf6 36. Bxd6 cxd6 37. Qxd6+ Qxd6 38. Rxd6+ Kc7 39. Rg6 Rd8 40. Bf3+ Kb8 41. Rb6+ Ka7 42. Rb7+ Ka8 43. Rd7+ Kb8 44. Rxd8+ Ka7 45. b4 Kb6 46. Rc5 a5 47. Rd6+ Ka7 48. Rc7+ Kb8 49. Rxg7 axb4 50. Rd8# 1-0

[Event "SWE AM2001"]
[Site "Sweden"]
[Date "2001.??.??"]
[Round "8"]
[White "Ostberg, Peter"]
[Black "Wengholm, Anders"]
[Result "1-0"]
[ECO "B79"]
[WhiteElo "2250"]
[BlackElo "2274"]
[PlyCount "41"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. Bc4 Bd7 10. 0-0-0 Ne5 11. Bb3 Qa5 12. Kb1 Rfc8 13. Rhe1 Nc4 14. Bxc4 Rxc4 15. Nb3 Qa6 16. e5 Ne8 17. Nc5 dxc5 18. Qxd7 Bxe5 19. Bh6 Rd4 20. Qxe7 Qd6 21. Qxe5 1-0

[Event "SWE AM2001"]
[Site "Sweden"]
[Date "2001.??.??"]
[Round "6"]
[White "Ostberg, Peter"]
[Black "Westin, Bertil"]
[Result "1-0"]
[ECO "D48"]
[WhiteElo "2500"]
[BlackElo "2500"]
[PlyCount "89"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 Bd6 11. dxe6 fxe6 12. Bxb5 Qc7 13. Bxd7+ Bxd7 14. 0-0 0-0 15. Qe2 Bc6 16. Bg5 Nh5 17. g3 Qf7 18. Nd2 Qg6 19. Be3 Nf6 20. f3 Nh5 21. Nc4 Bc7 22. Rad1 Rf7 23. Qg2 Bb5 24. b3 Bxc4 25. bxc4 Be5 26. Ne2 Rb7 27. f4 Bb2 28. e5 Qf7 29. Rd2 Ba3 30. g4 Rab8 31. Rfd1 Rb1 32. gxh5 Qxh5 33. Rxb1 Rxb1+ 34. Kf2 Qh4+ 35. Qg3 Qe7 36. Qg5 Qxg5 37. fxg5 Bb2 38. Bf4 Kf7 39. Rd6 Kg6 40. Ng3 a5 41. Rxe6+ Kf7 42. Ra6 Bc3 43. Kf3 Ra1 44. e6+ Ke8 45. Bd6 1-0

[Event "SWE AM2001"]
[Site "Sweden"]
[Date "2001.??.??"]
[Round "5"]
[White "Thorsson, Anders"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1300"]
[BlackElo "2250"]
[PlyCount "32"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. g3 Nc6 4. c4 g6 5. Bg2 Bg7 6. d3 Nge7 7. a3 d6 8. Qc2 a6 9. Nc3 Rb8 10. Rb1 b5 11. Bd2 b4 12. axb4 Nxb4 13. Qa4+ Bd7 14. Qd1 Nxd3+ 15. Kf1 Nxb2 16. Qc2 Nxc4 0-1

[Event "SWE AM2001"]
[Site "Sweden"]
[Date "2001.??.??"]
[Round "7"]
[White "Wallenas, Daniel"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "1575"]
[BlackElo "2250"]
[PlyCount "68"]
[EventDate "2001.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 c5 7. dxc5 dxc5 8. Bxc5 Nc6 9. Bd3 Nd7 10. Be3 Bxc3+ 11. bxc3 Nde5 12. Be2 Qa5 13. Qb3 Qc7 14. c5 Rd8 15. Rd1 Be6 16. Qc2 Rxd1+ 17. Bxd1 Rd8 18. Ne2 Nd3+ 19. Kf1 Bc4 20. g3 Nce5 21. Kg2 Nxc5 22. Nd4 Bd3 23. Qc1 Ba6 24. Bc2 Ned3 25. Qb1 Qa5 26. Bxd3 Bxd3 27. Qb2 Nxe4 28. Rd1 Nc5 29. Nb3 Nxb3 30. axb3 Bf5 31. Rxd8+ Qxd8 32. Bxa7 Qd1 33. Be3 Bd3 34. Qd2 Qf1# 0-1

[Event "Nordic-ch"]
[Site "Sundsvall"]
[Date "1979.??.??"]
[Round "9"]
[White "Arnason, Jon Loftur"]
[Black "Ostberg, Peter"]
[Result "1/2-1/2"]
[ECO "C91"]
[WhiteElo "2410"]
[BlackElo "2300"]
[PlyCount "66"]
[EventDate "1979.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[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. c3 0-0 9. d4 Bg4 10. Be3 exd4 11. cxd4 Na5 12. Bc2 Nc4 13. Bc1 c5 14. b3 Na5 15. d5 Nd7 16. Nbd2 Bf6 17. Rb1 Rc8 18. h3 Bh5 19. g4 Bg6 20. Nf1 Bc3 21. Re2 h5 22. Kg2 hxg4 23. hxg4 Re8 24. Ng3 Nf6 25. Nh2 Qd7 26. Qd3 b4 27. Qf3 c4 28. g5 Nh7 29. Nf5 Be5 30. bxc4 Rxc4 31. Bd3 Rc7 32. Be3 Nc4 33. Ng4 Nxe3+ 1/2-1/2

[Event "Nordic-ch"]
[Site "Sundsvall"]
[Date "1979.??.??"]
[Round "3"]
[White "Carlsson, Gerner"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "A72"]
[BlackElo "2300"]
[PlyCount "64"]
[EventDate "1979.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Bg5 h6 9. Bh4 a6 10. Nd2 b5 11. Be2 0-0 12. Qc2 Nbd7 13. 0-0 Qc7 14. a4 b4 15. Nd1 Re8 16. Ne3 b3 17. Qb1 Rb8 18. Bg3 Rb4 19. Nec4 Bf8 20. Re1 Nb6 21. Nxb6 Qxb6 22. e5 dxe5 23. Bd3 Nd7 24. Nc4 Qd8 25. Qc1 Bg7 26. Nd6 Rf8 27. Nc4 Bb7 28. Bf1 Qe7 29. Qd2 Re8 30. Na5 Rd4 31. Qc1 Bxd5 32. Bxa6 Ra8 0-1

[Event "SWE-ch"]
[Site "Boras"]
[Date "1979.??.??"]
[Round "?"]
[White "Fridh, Anton"]
[Black "Ostberg, Peter"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2270"]
[BlackElo "2300"]
[PlyCount "77"]
[EventDate "1979.07.01"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "SWE"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. a4 a6 8. Na3 Be6 9. Bg5 Rc8 10. Be2 Be7 11. 0-0 0-0 12. Qd2 Nd4 13. Bd3 h6 14. Be3 Qb6 15. Nd5 Nxd5 16. exd5 Bxd5 17. c3 Bxg2 18. cxd4 Bxf1 19. Bxf1 Qb3 20. a5 f5 21. dxe5 dxe5 22. Bc4+ Rxc4 23. Qd5+ Kh7 24. Qxc4 Qxb2 25. Ra2 Qb4 26. Qxb4 Bxb4 27. Nc4 f4 28. Ba7 e4 29. Rb2 Bc3 30. Rb3 Bf6 31. Nd6 e3 32. fxe3 fxe3 33. Bxe3 Rd8 34. Ne4 Be5 35. Rxb7 Rd1+ 36. Kg2 Ra1 37. Bb6 Ra4 38. Nf2 Bc3 39. Ra7 1-0

[Event "SWE-ch"]
[Site "Boras"]
[Date "1979.??.??"]
[Round "?"]
[White "Hammar, Bengt Erik"]
[Black "Ostberg, Peter"]
[Result "1/2-1/2"]
[ECO "C19"]
[WhiteElo "2385"]
[BlackElo "2300"]
[PlyCount "58"]
[EventDate "1979.07.01"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "SWE"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. a4 Qa5 8. Bd2 Nbc6 9. Nf3 Bd7 10. Be2 f6 11. exf6 gxf6 12. c4 Qc7 13. cxd5 Nxd5 14. c4 Nde7 15. d5 exd5 16. cxd5 Nxd5 17. Qc1 Qd6 18. 0-0 0-0-0 19. Rd1 Bg4 20. Ra3 Rhe8 21. Be3 Qe7 22. h3 Bh5 23. Rd2 Nxe3 24. Rxe3 Qf8 25. Rxd8+ Rxd8 26. Rc3 Qe7 27. Re3 Qf8 28. Rc3 Qe7 29. Qe3 Qf8 1/2-1/2

[Event "SWE-ch"]
[Site "Boras"]
[Date "1979.??.??"]
[Round "?"]
[White "Kinnmark, Ove"]
[Black "Ostberg, Peter"]
[Result "1/2-1/2"]
[ECO "A15"]
[WhiteElo "2365"]
[BlackElo "2300"]
[PlyCount "42"]
[EventDate "1979.07.01"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "SWE"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 e5 7. c4 Re8 8. Nc3 c6 9. d3 Nbd7 10. Qc2 Nf8 11. b4 Bf5 12. Nh4 Bd7 13. Ne4 Qe7 14. a4 Rad8 15. e3 d5 16. Nc5 Bc8 17. Nf3 N6d7 18. Nxd7 Bxd7 19. b5 Bf5 20. cxd5 cxd5 21. Nd2 Qd7 1/2-1/2

[Event "Nordic-ch"]
[Site "Sundsvall"]
[Date "1979.??.??"]
[Round "1"]
[White "Kvist, Arnold"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "A45"]
[BlackElo "2300"]
[PlyCount "84"]
[EventDate "1979.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 c5 3. d5 Ne4 4. Bf4 d6 5. Nd2 Nxd2 6. Qxd2 Nd7 7. e4 g6 8. Bh6 Bxh6 9. Qxh6 Qa5+ 10. c3 Nf6 11. f3 Bd7 12. Bd3 0-0-0 13. Qe3 e6 14. dxe6 Bxe6 15. Ne2 d5 16. 0-0 dxe4 17. Bxe4 Nxe4 18. fxe4 Rhe8 19. b4 Qc7 20. Qxc5 Qxc5+ 21. bxc5 Bc4 22. Rfe1 Rxe4 23. Nd4 Rde8 24. Rxe4 Rxe4 25. a4 a6 26. Kf2 Re5 27. c6 b6 28. Rb1 Kc7 29. Rb4 Rc5 30. a5 b5 31. g3 Bd5 32. Ne2 Rxc6 33. Rf4 Kd6 34. Ke3 Ke5 35. Kd2 f5 36. Rd4 g5 37. Nc1 Bc4 38. Rd7 Rd6+ 39. Rxd6 Kxd6 40. Ke3 Ke5 41. Kf3 g4+ 42. Ke3 h6 0-1

[Event "SWE-ch"]
[Site "Boras"]
[Date "1979.??.??"]
[Round "?"]
[White "Marttala, Thomas"]
[Black "Ostberg, Peter"]
[Result "1/2-1/2"]
[ECO "A30"]
[BlackElo "2300"]
[PlyCount "87"]
[EventDate "1979.07.01"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "SWE"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 Be7 6. Nc3 0-0 7. Qc2 c5 8. b3 Nc6 9. Bb2 Rc8 10. Rad1 d5 11. d4 cxd4 12. Nxd4 Nxd4 13. Rxd4 Qc7 14. cxd5 Nxd5 15. Rc4 Bc5 16. Ne4 Qe7 17. Nxc5 Rxc5 18. Rxc5 bxc5 19. Rc1 Rc8 20. Qe4 Rc7 21. Qa4 Bc6 22. Qa5 Be8 23. Ba3 h5 24. Rxc5 Rxc5 25. Qxc5 Qd7 26. Qf8+ Kh7 27. Bf3 f6 28. Qd6 Qc8 29. Qc5 Qd7 30. Qd4 Qf7 31. Bc5 a5 32. e4 Nc7 33. Bb6 Nb5 34. Qc5 e5 35. Be2 Nd4 36. Bc4 Qg6 37. Qd5 Bc6 38. Qg8+ Kh6 39. Qh8+ Kg5 40. Bxd4 Qxe4 41. Be3+ Kg6 42. Kf1 Qh1+ 43. Ke2 Bf3+ 44. Kd2 1/2-1/2

[Event "SWE-ch"]
[Site "Boras"]
[Date "1979.??.??"]
[Round "?"]
[White "Ostberg, Peter"]
[Black "Bjork, Carl Magnus"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "2300"]
[PlyCount "52"]
[EventDate "1979.07.01"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "SWE"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. e3 b5 6. a4 Bb4 7. Be2 Bb7 8. 0-0 a6 9. Ne4 Nf6 10. Nxf6+ gxf6 11. b3 c3 12. Qc2 Ba5 13. e4 b4 14. Be3 Nd7 15. Rad1 Bc7 16. Ne1 a5 17. f4 Qe7 18. Nd3 Bb6 19. Bf3 c5 20. dxc5 Nxc5 21. Nf2 Nxa4 22. Bxb6 Nxb6 23. Ng4 h5 24. Ne3 Qc5 25. Qf2 a4 26. bxa4 b3 0-1

[Event "SWE-ch"]
[Site "Boras"]
[Date "1979.??.??"]
[Round "?"]
[White "Ostberg, Peter"]
[Black "Ekstroem, Roland"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2300"]
[BlackElo "2385"]
[PlyCount "103"]
[EventDate "1979.07.01"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "SWE"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. Nc3 Ke8 10. b3 Be6 11. Bb2 Rd8 12. Ne2 Bd5 13. Nfd4 Nxd4 14. Nxd4 c5 15. Nf5 Be6 16. Ne3 g5 17. Rfd1 Be7 18. c4 c6 19. f3 Rxd1+ 20. Rxd1 Kf8 21. Kf2 Kg7 22. g4 Kg6 23. Nf5 Bd8 24. Ng3 Be7 25. Nf5 Bd8 26. Ng3 Bc7 27. Ke3 Rd8 28. Rh1 b5 29. h4 bxc4 30. bxc4 f6 31. Ne4 Bxc4 32. Nxf6 Rd3+ 33. Ke4 Rd2 34. hxg5 Rxb2 35. Kf4 Ba5 36. Rh6+ Kf7 37. Rxh7+ Ke6 38. Ne4 Bd2+ 39. Nxd2 Rxd2 40. Rh6+ Kf7 41. Rxc6 Rd4+ 42. Kg3 Rd3 43. Rxc5 Bd5 44. Rc7+ Kg6 45. Rxa7 Kxg5 46. Rg7+ Kh6 47. Rd7 Rxf3+ 48. Kh4 Bxa2 49. Rd6+ Kg7 50. Kg5 Bf7 51. Rb6 Re3 52. Kf5 1/2-1/2

[Event "SWE-ch"]
[Site "Boras"]
[Date "1979.??.??"]
[Round "?"]
[White "Ostberg, Peter"]
[Black "Elfvin, U."]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2300"]
[PlyCount "76"]
[EventDate "1979.07.01"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "SWE"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. a4 a6 8. Na3 h6 9. Bc4 Be7 10. 0-0 0-0 11. Be3 Be6 12. Bd5 Bxd5 13. Nxd5 Nxe4 14. Bb6 Qd7 15. Nc4 Bd8 16. a5 f5 17. Qd3 Qe6 18. Rad1 Bxb6 19. axb6 Rad8 20. Rfe1 Nd4 21. Nc7 Qg6 22. f3 Nc5 23. Qc3 f4 24. b4 Nd7 25. Rxd4 exd4 26. Qxd4 Ne5 27. Qd5+ Qf7 28. Qxf7+ Rxf7 29. Na5 Rb8 30. Rd1 Rd7 31. Rd4 g5 32. Nd5 Kf7 33. c4 Rc8 34. Nc7 Nc6 35. Rd2 Nxa5 36. bxa5 Kf6 37. c5 Ke7 38. Re2+ Kf7 0-1

[Event "Nordic-ch"]
[Site "Sundsvall"]
[Date "1979.??.??"]
[Round "4"]
[White "Ostberg, Peter"]
[Black "Hjorth, Gunnar"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "2300"]
[PlyCount "51"]
[EventDate "1979.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 0-0 6. Be2 c5 7. dxc5 dxc4 8. Qxd8 Rxd8 9. Bxc4 Nc6 10. Bd2 Bg4 11. Rc1 Rac8 12. Be2 e5 13. Ng5 Bxe2 14. Kxe2 Nb4 15. Nce4 Nxe4 16. Nxe4 Nd3 17. Rc3 Nxb2 18. Rb1 Na4 19. Rc4 Nb6 20. Rcc1 Nd7 21. Rxb7 f5 22. Ba5 Rb8 23. c6 Rxb7 24. Bxd8 Rb2+ 25. Nd2 Rb8 26. Bc7 1-0

[Event "SWE-ch"]
[Site "Boras"]
[Date "1979.??.??"]
[Round "?"]
[White "Ostberg, Peter"]
[Black "Ivarsson, Stefan"]
[Result "1/2-1/2"]
[ECO "A84"]
[WhiteElo "2300"]
[BlackElo "2410"]
[PlyCount "81"]
[EventDate "1979.07.01"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "SWE"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 e6 2. c4 f5 3. g3 b6 4. Bg2 Bb7 5. 0-0 Nf6 6. d4 Qc8 7. Qc2 Be7 8. Nc3 Ne4 9. Bd2 0-0 10. Rad1 d6 11. d5 Nxc3 12. Bxc3 e5 13. Ne1 f4 14. Be4 Qh3 15. Bxe5 fxg3 16. Bxg3 Nd7 17. Bg2 Qh6 18. Qd2 Bg5 19. f4 Bf6 20. Nd3 g5 21. e3 Rae8 22. Nf2 gxf4 23. exf4 Qg7 24. b3 Nc5 25. Kh1 Bc8 26. Bh3 Ne4 27. Nxe4 Bxh3 28. Nxf6+ Qxf6 29. Rfe1 Qg6 30. Re3 Rxe3 31. Qxe3 Re8 32. Qf2 Bf5 33. Re1 Be4+ 34. Kg1 Qf5 35. Re3 Kf7 36. Qe2 h6 37. Qe1 Kg6 38. Qe2 Kh7 39. Qe1 Kg6 40. Qe2 Kh7 41. Qe1 1/2-1/2

[Event "Nordic-ch"]
[Site "Sundsvall"]
[Date "1979.??.??"]
[Round "8"]
[White "Ostberg, Peter"]
[Black "Karason, Askell Orn"]
[Result "1/2-1/2"]
[ECO "A59"]
[WhiteElo "2300"]
[PlyCount "89"]
[EventDate "1979.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 g6 7. Nf3 d6 8. e4 Bxf1 9. Kxf1 Bg7 10. g3 0-0 11. Kg2 Nbd7 12. h3 Qa5 13. Re1 Rfb8 14. Qc2 Rb7 15. Bd2 Rab8 16. Rab1 Ne8 17. b3 Nc7 18. a4 Qa6 19. Nd1 Nb6 20. Ne3 c4 21. a5 cxb3 22. Rxb3 Nd7 23. Reb1 Nc5 24. Rxb7 Rxb7 25. e5 Rxb1 26. Qxb1 Nb5 27. exd6 exd6 28. Qb4 Qb7 29. Qh4 Qd7 30. Ng4 f5 31. Nf6+ Bxf6 32. Qxf6 Ne4 33. Qb2 Qa7 34. Be3 Qxa5 35. Bh6 Nec3 36. Qd2 Qa7 37. g4 Ne4 38. Qb2 fxg4 39. hxg4 Qd7 40. Nh2 Qa7 41. Nf1 Nec3 42. Ne3 Qd4 43. Qa1 Qa4 44. Qh1 Nxd5 45. Nxd5 1/2-1/2

[Event "SWE-ch"]
[Site "Boras"]
[Date "1979.??.??"]
[Round "?"]
[White "Ostberg, Peter"]
[Black "Karlsson, Lars"]
[Result "1-0"]
[ECO "B75"]
[WhiteElo "2300"]
[BlackElo "2375"]
[PlyCount "80"]
[EventDate "1979.07.01"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "SWE"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bc4 Bg7 7. Be3 d6 8. f3 Bd7 9. Qd2 Rc8 10. Bb3 Qa5 11. 0-0-0 h5 12. Kb1 a6 13. Rhe1 h4 14. h3 Rh5 15. Qf2 Qc7 16. Nde2 g5 17. f4 g4 18. Nd5 Qb8 19. Nec3 g3 20. Qe2 Rh7 21. Nxf6+ Bxf6 22. Nd5 Bg7 23. Nb6 Rd8 24. Nxd7 Rxd7 25. Bb6 e6 26. Qg4 Bf8 27. Qg8 Rh6 28. f5 Ne7 29. Qg4 d5 30. Be3 Rh7 31. fxe6 fxe6 32. Qxe6 Rd6 33. Qg4 Rg6 34. Qe2 dxe4 35. Qd2 Nc6 36. Bf4 Qc8 37. Rxe4+ Be7 38. Qe2 Qf5 39. Bd6 Qh5 40. Qd3 Qf5 1-0

[Event "Nordic-ch"]
[Site "Sundsvall"]
[Date "1979.??.??"]
[Round "2"]
[White "Ostberg, Peter"]
[Black "Lundquist, Anders"]
[Result "1/2-1/2"]
[ECO "E34"]
[WhiteElo "2300"]
[PlyCount "26"]
[EventDate "1979.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Bb4 5. Qc2 c6 6. e3 Qa5 7. Nge2 Nbd7 8. Bxf6 Nxf6 9. a3 Bxc3+ 10. Qxc3 Qxc3+ 11. Nxc3 Ne4 12. Nxe4 dxe4 13. b4 f5 1/2-1/2

[Event "Nordic-ch"]
[Site "Sundsvall"]
[Date "1979.??.??"]
[Round "7"]
[White "Ostberg, Peter"]
[Black "Niklasson, Christer"]
[Result "0-1"]
[ECO "B46"]
[WhiteElo "2300"]
[BlackElo "2385"]
[PlyCount "82"]
[EventDate "1979.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Bf4 d6 7. Bg3 Nf6 8. Be2 Be7 9. Nxc6 bxc6 10. e5 Nd5 11. exd6 Bxd6 12. Bxd6 Qxd6 13. 0-0 Qb4 14. a3 Qxb2 15. Na4 Qe5 16. Bf3 Qc7 17. c4 Ne7 18. Qd4 0-0 19. Rfd1 e5 20. Qb6 Ra7 21. Qxc7 Rxc7 22. Nc5 Nf5 23. Rab1 Nd4 24. Rb6 a5 25. Rd2 f5 26. Bd1 Rd8 27. Kf1 Kf7 28. Ba4 Be6 29. Nxe6 Kxe6 30. Rdb2 Ra8 31. Ke1 Kd6 32. Kd2 Kc5 33. Rb7 Rxb7 34. Rxb7 Kxc4 35. Rxg7 Rb8 36. Bd1 Rb2+ 37. Ke1 Kd3 38. Rg3+ Kc4 39. Rg7 Ne6 40. Rf7 Nd4 41. Rxh7 e4 0-1

[Event "SWE-ch"]
[Site "Boras"]
[Date "1979.??.??"]
[Round "?"]
[White "Ostberg, Peter"]
[Black "Renman, Nils Gustaf"]
[Result "0-1"]
[ECO "E20"]
[WhiteElo "2300"]
[BlackElo "2400"]
[PlyCount "82"]
[EventDate "1979.07.01"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "SWE"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Bb4 5. g3 0-0 6. Bg2 dxc4 7. 0-0 Nc6 8. a3 Be7 9. e4 a6 10. Be3 b5 11. Qe2 Bb7 12. Rad1 Na5 13. Ne5 c5 14. f4 cxd4 15. Bxd4 Nb3 16. Be3 Qc7 17. g4 Rad8 18. g5 Nd7 19. Ng4 Ndc5 20. Rxd8 Qxd8 21. Qf2 Qa8 22. Qf3 f5 23. gxf6 Bxf6 24. Nxf6+ Rxf6 25. Rd1 Nd3 26. Ne2 e5 27. f5 Rd6 28. Ng3 Qd8 29. Qg4 Nf4 30. Rf1 Nxg2 31. Kxg2 Qd7 32. Rf2 Nd2 33. Kh3 Rd3 34. Bxd2 Rxd2 35. Nh5 Rd3+ 36. Kh4 Kf8 37. Rg2 Bxe4 38. Qxg7+ Qxg7 39. Rxg7 Bxf5 40. Ra7 Bg6 41. Nf6 Rd2 0-1

[Event "SWE-ch"]
[Site "Boras"]
[Date "1979.??.??"]
[Round "?"]
[White "Ostberg, Peter"]
[Black "Sjoberg, Mats"]
[Result "0-1"]
[ECO "E66"]
[WhiteElo "2300"]
[PlyCount "104"]
[EventDate "1979.07.01"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "SWE"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 c5 7. Nc3 Nc6 8. d5 Na5 9. Nd2 a6 10. Qc2 Rb8 11. b3 b5 12. Bb2 Bh6 13. cxb5 axb5 14. Nde4 Bg7 15. Nxf6+ exf6 16. Rad1 f5 17. Nb1 b4 18. Bxg7 Kxg7 19. Rfe1 Qf6 20. e3 Ba6 21. Bf1 Bxf1 22. Rxf1 Rfc8 23. Nd2 Rc7 24. Rc1 Qe5 25. Qd3 Ra7 26. Rfe1 h5 27. f4 Qf6 28. e4 Re8 29. e5 dxe5 30. Qb5 Rae7 31. Nf3 exf4 32. Rxe7 Rxe7 33. Qxa5 Re3 34. Rf1 Qc3 35. Kg2 Re2+ 36. Kh3 Re3 37. Kg2 Qc2+ 38. Kg1 fxg3 39. hxg3 Qc3 40. Kg2 Qc2+ 41. Kg1 h4 42. gxh4 Qe4 43. Qxc5 Qg4+ 44. Kh2 Re2+ 45. Rf2 Qxf3 46. Qd4+ Kg8 47. Rxe2 Qxe2+ 48. Kg3 Qe4 49. Qc4 f4+ 50. Kh2 Qf3 51. d6 Qg3+ 52. Kh1 f3 0-1

[Event "Nordic-ch"]
[Site "Sundsvall"]
[Date "1979.??.??"]
[Round "6"]
[White "Ostberg, Peter"]
[Black "Unander, Matts"]
[Result "1-0"]
[ECO "D09"]
[WhiteElo "2300"]
[PlyCount "33"]
[EventDate "1979.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Bg4 6. Bg2 Qd7 7. 0-0 0-0-0 8. Qa4 h5 9. Nbd2 Bh3 10. e6 Bxe6 11. b4 Bxb4 12. Rb1 Bh3 13. Ne5 Nxe5 14. Bxb7+ Kxb7 15. Qxb4+ Kc6 16. Ba3 Nf3+ 17. Nxf3 1-0

[Event "Nordic-ch"]
[Site "Sundsvall"]
[Date "1979.??.??"]
[Round "5"]
[White "Rorvall, Goran"]
[Black "Ostberg, Peter"]
[Result "1/2-1/2"]
[ECO "C81"]
[WhiteElo "2350"]
[BlackElo "2300"]
[PlyCount "51"]
[EventDate "1979.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Be7 10. Rd1 0-0 11. c4 bxc4 12. Bxc4 Bc5 13. Be3 Bxe3 14. Qxe3 Qb8 15. Bb3 Na5 16. Nbd2 Nxb3 17. Nxb3 f5 18. exf6 Rxf6 19. Nc5 Nxc5 20. Qxc5 Qxb2 21. Rdb1 Qe2 22. Qxc7 Raf8 23. Rb8 Bg4 24. Re1 Qxa2 25. Re7 Qa1+ 26. Re1 1/2-1/2

[Event "SWE-ch"]
[Site "Boras"]
[Date "1979.??.??"]
[Round "?"]
[White "Svenn, Matti"]
[Black "Ostberg, Peter"]
[Result "1-0"]
[ECO "B47"]
[BlackElo "2300"]
[PlyCount "111"]
[EventDate "1979.07.01"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "SWE"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 a6 7. Bg2 Qc7 8. 0-0 Be7 9. Re1 Nxd4 10. Qxd4 e5 11. Qd3 h6 12. Be3 0-0 13. Red1 d6 14. a4 b6 15. h3 Bb7 16. Rac1 Bc6 17. a5 b5 18. Bb6 Qb7 19. Nd5 Nxd5 20. exd5 Bd7 21. b3 Bg5 22. Be3 Bxe3 23. Qxe3 Qc7 24. c4 bxc4 25. bxc4 Rac8 26. c5 dxc5 27. d6 Qxa5 28. Qxe5 Rfe8 29. Qd5 Be6 30. Qb7 Rb8 31. Qa7 c4 32. Ra1 Qb6 33. Rxa6 Qb3 34. Rc1 Red8 35. Qd4 Qb4 36. Rc6 Rd7 37. Kh2 Rbd8 38. Rd1 Qa3 39. Be4 Qa5 40. Rd2 Qh5 41. Bg2 Qa5 42. Bf3 Qa3 43. Be4 Qa4 44. Qc5 c3 45. Rd4 Qa2 46. Kg2 Qb2 47. Rb6 Qc1 48. h4 Qe1 49. Rb1 Qe2 50. Qxc3 f5 51. Bf3 Qa6 52. Re1 Bf7 53. Qc5 Rxd6 54. Rxd6 Rxd6 55. Qxf5 Bg6 56. Qg4 1-0

[Event "SWE-ch"]
[Site "Boras"]
[Date "1979.??.??"]
[Round "?"]
[White "Svensson, Bengt"]
[Black "Ostberg, Peter"]
[Result "1/2-1/2"]
[ECO "C99"]
[BlackElo "2300"]
[PlyCount "66"]
[EventDate "1979.07.01"]
[EventType "swiss"]
[EventRounds "13"]
[EventCountry "SWE"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[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. c3 d6 9. h3 Na5 10. Bc2 c5 11. d4 cxd4 12. cxd4 Qc7 13. Nbd2 Bb7 14. Nf1 Rfd8 15. d5 Nc4 16. Ng3 Bc8 17. Bd3 Bd7 18. b3 Nb6 19. Be3 g6 20. Qd2 Rdc8 21. Rac1 Qb7 22. Nh2 Rxc1 23. Rxc1 Rc8 24. Rf1 Be8 25. f4 exf4 26. Bxf4 Nbd7 27. Bg5 Qb6+ 28. Kh1 Qd8 29. Nf3 Ne5 30. Nxe5 dxe5 31. Bh6 Nd7 32. Rf3 Ba3 33. Rf1 Qe7 1/2-1/2

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Bengtsson, Bo"]
[Black "Ostberg, Peter"]
[Result "1-0"]
[ECO "C05"]
[WhiteElo "2340"]
[PlyCount "93"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. c3 Nc6 7. Ndf3 cxd4 8. cxd4 Nb6 9. Bd3 Bd7 10. Nh3 Rc8 11. a3 a5 12. 0-0 h5 13. Nhg5 g6 14. Nh4 Ne7 15. g4 hxg4 16. Qxg4 Nf5 17. Ng2 Be7 18. Rf3 Bxg5 19. fxg5 Qe7 20. h4 Bc6 21. Rh3 Kd7 22. Ne3 Kc7 23. Nxf5 gxf5 24. Qe2 Kb8 25. Bf4 Ba4 26. h5 Bb3 27. Bxf5 a4 28. Bd3 Rcg8 29. Rg3 Bc4 30. h6 Bxd3 31. Qxd3 Rc8 32. Rc1 Rc4 33. Rc3 Qd7 34. Bd2 Qb5 35. b3 axb3 36. Rxb3 Qc6 37. h7 Nc8 38. g6 fxg6 39. Qxg6 Qd7 40. Rh3 Rc7 41. Ba5 Rc1+ 42. Kg2 Qa4 43. Qg7 Rc2+ 44. Kf1 b6 45. Bb4 Qb5+ 46. Rbd3 Qe8 47. Rc3 1-0

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Ekstroem, Roland"]
[Black "Ostberg, Peter"]
[Result "1/2-1/2"]
[ECO "C19"]
[WhiteElo "2400"]
[PlyCount "100"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 Qa5 8. Qd2 Nbc6 9. Bd3 Bd7 10. 0-0 c4 11. Be2 0-0 12. a4 f6 13. Ba3 Rf7 14. exf6 gxf6 15. Nh4 Ng6 16. Nxg6 hxg6 17. f4 Rh7 18. Bg4 Kf7 19. g3 Rah8 20. h4 Qc7 21. Kg2 Nd8 22. a5 Kg7 23. Bc5 Nf7 24. Rae1 Re8 25. Bxa7 Nd6 26. Bb6 Qc8 27. Rh1 Ne4 28. Qe3 Reh8 29. Ra1 Qc6 30. Bf3 Nd6 31. Bc5 Nf5 32. Qe2 Re8 33. Qf2 Reh8 34. Rad1 Qc7 35. Bb4 Kf7 36. Bg4 Nh6 37. Bh3 Nf5 38. Qf3 Rxh4 39. Bxf5 Rxh1 40. Bxg6+ Kxg6 41. Qg4+ Kf7 42. Rxh1 Rxh1 43. Kxh1 Qd8 44. Qh5+ Kg7 45. Kg2 Qe8 46. Qxe8 Bxe8 47. g4 Ba4 48. g5 Bxc2 49. Be7 fxg5 50. fxg5 Kg6 1/2-1/2

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Hansson, Dan"]
[Black "Ostberg, Peter"]
[Result "1-0"]
[ECO "C91"]
[WhiteElo "2345"]
[PlyCount "79"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[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. c3 0-0 9. d4 Bg4 10. d5 Na5 11. Bc2 c6 12. h3 Bxf3 13. Qxf3 cxd5 14. exd5 Nc4 15. Nd2 Nb6 16. Nf1 Ne8 17. Ng3 g6 18. Bh6 Ng7 19. a4 bxa4 20. Bxa4 Nxa4 21. Rxa4 a5 22. Rea1 Rb8 23. Bc1 Rb5 24. c4 Rb4 25. Rxb4 axb4 26. Qb3 Qc7 27. Ra4 Rc8 28. Rxb4 Bh4 29. Rb7 Qd8 30. Ne4 Nf5 31. Qd3 Qa5 32. Bd2 Qa6 33. Rb4 Bd8 34. Bc3 Qa1+ 35. Kh2 h5 36. Rb7 h4 37. c5 Qc1 38. Bd2 Qd1 39. Nc3 Qa1 40. Qb5 1-0

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Helmertz, Per Inge"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "B57"]
[WhiteElo "2295"]
[PlyCount "80"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Qb6 7. Nde2 e6 8. 0-0 a6 9. a3 Be7 10. Ba2 0-0 11. Kh1 Qc7 12. f4 Bd7 13. f5 Ne5 14. Nf4 Nc4 15. Qe2 b5 16. Rf3 Rfe8 17. fxe6 fxe6 18. Rg3 Rf8 19. b3 Ne5 20. Bb2 Rf7 21. Nd1 Raf8 22. Nh3 Nfg4 23. Rxg4 Nxg4 24. Qxg4 Rf1+ 25. Ng1 Rxg1+ 26. Kxg1 Qc5+ 27. Ne3 Qxe3+ 28. Kh1 Bf6 29. Bxf6 Rxf6 30. b4 Qc3 31. Rg1 Qe5 32. Qh4 Bc6 33. Re1 Bxe4 34. c4 Qd4 35. Qg4 bxc4 36. h3 d5 37. Rd1 Qc3 38. Rg1 h6 39. Kh2 Rg6 40. Qf4 Qc2 0-1

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Kaiszauri, Konstanty"]
[Black "Ostberg, Peter"]
[Result "1-0"]
[ECO "C67"]
[WhiteElo "2385"]
[PlyCount "105"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. Nc3 h6 10. b3 Be6 11. Bb2 c5 12. Rad1+ Kc8 13. Nd5 Ne7 14. Nf4 Nc6 15. Nxe6 fxe6 16. Ne1 Be7 17. Nd3 Rf8 18. g3 g5 19. f4 g4 20. h3 gxh3 21. Kf2 b6 22. Rh1 Rf7 23. Kf3 Kb7 24. Rxh3 Bf8 25. Nf2 a5 26. a4 Ne7 27. Ke4 Bg7 28. Nd3 Rg8 29. g4 Bf8 30. Nf2 Kc8 31. Rh5 Nc6 32. c4 Rd7 33. Rxd7 Kxd7 34. Rh3 Nd8 35. Bc1 Nf7 36. Be3 Bg7 37. Bd2 Ke8 38. Rh1 Ke7 39. Bc3 Rd8 40. Rd1 Rxd1 41. Nxd1 Bf8 42. Nf2 Nd8 43. Nh3 Kf7 44. f5 c6 45. Be1 Be7 46. Bd2 Bf8 47. Nf4 Bg7 48. Be1 Bf8 49. Bh4 Be7 50. Bxe7 Kxe7 51. Nxe6 Nxe6 52. fxe6 Kxe6 53. Kf4 1-0

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Karlsson, Lars"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "2370"]
[PlyCount "116"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. c4 Nf6 4. Nf3 e4 5. Nd4 Bc5 6. e3 0-0 7. Nc2 d5 8. cxd5 Nxd5 9. Nc3 Nxc3 10. Bxc3 Qh4 11. Qe2 Bd6 12. g3 Qe7 13. Bg2 Bf5 14. Nd4 Nxd4 15. Bxd4 Rad8 16. Rc1 c5 17. Bc3 Be5 18. Qc4 Bxc3 19. Rxc3 b6 20. f3 Qd6 21. Qe2 exf3 22. Bxf3 Rfe8 23. Qf2 Bg6 24. h4 h5 25. Rh2 Re6 26. Rg2 Qe5 27. g4 hxg4 28. Bxg4 Red6 29. Qf4 Qxf4 30. exf4 Be4 31. Rf2 Bd3 32. h5 Rd4 33. a3 a5 34. Kd1 R8d6 35. Kc1 Kf8 36. Bd1 Rf6 37. Kb2 Bb5 38. Rg3 Rfxf4 39. Rfg2 Bc6 40. Rg1 Rxd2+ 41. Kc1 Rff2 42. Rxg7 Ra2 43. Rg8+ Ke7 44. Re1+ Kd6 45. Kb1 Bd7 46. Bg4 Bxg4 47. Rxg4 Rfb2+ 48. Kc1 Rh2 49. Kb1 Rxa3 50. Re3 a4 51. Rxa4 Rxa4 52. bxa4 Rxh5 53. Kb2 Re5 54. Rf3 f5 55. Kb3 Kd5 56. Rd3+ Kc6 57. Rd8 Re3+ 58. Kc4 Ra3 0-1

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Ostberg, Peter"]
[Black "Carleson, Caspar"]
[Result "0-1"]
[ECO "D47"]
[PlyCount "84"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 b4 9. Na4 c5 10. e4 cxd4 11. e5 Nd5 12. 0-0 Nc5 13. Nxc5 Bxc5 14. Re1 Qb6 15. Ng5 a5 16. Qh5 g6 17. Qf3 Ra7 18. Ne4 Ba6 19. Bg5 Bxd3 20. Qxd3 Be7 21. Rad1 Bxg5 22. Nxg5 Rc7 23. Re4 h6 24. Nf3 Ke7 25. Nxd4 Rhc8 26. Qd2 g5 27. h4 Rg8 28. Rg4 Nf4 29. Nb5 Rc5 30. hxg5 Rd5 31. Qc2 Rxd1+ 32. Qxd1 hxg5 33. Nd6 Qd4 34. b3 Qxe5 35. Nc4 Qe4 36. Qd6+ Kf6 37. Ne3 Qb1+ 38. Kh2 Rh8+ 39. Kg3 Qe4 40. Qd2 Nh5+ 41. Kh2 Nf4+ 42. Kg1 Qb1+ 0-1

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Ostberg, Peter"]
[Black "Hammar, Bengt Erik"]
[Result "1-0"]
[ECO "B94"]
[PlyCount "39"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 Qa5 8. Qd2 e6 9. 0-0 Be7 10. Rac1 h6 11. Bh4 Ne5 12. Bb3 g5 13. Bg3 Bd7 14. f4 gxf4 15. Rxf4 Nh7 16. Rf2 0-0-0 17. Nd5 Qxd2 18. Nxe7+ Kc7 19. Rxd2 Rhe8 20. Nf3 1-0

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Ostberg, Peter"]
[Black "Jansson, Borje"]
[Result "1/2-1/2"]
[ECO "B04"]
[BlackElo "2380"]
[PlyCount "59"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nc6 5. c4 Nb6 6. e6 fxe6 7. Nc3 g6 8. h4 Bg7 9. h5 e5 10. d5 Nd4 11. Nxd4 exd4 12. Ne4 Bf5 13. Bd3 Qd7 14. Qe2 0-0-0 15. Ng5 Rdf8 16. b3 Bf6 17. Ne6 Bxe6 18. dxe6 Qc6 19. a4 a5 20. Bd2 Qc5 21. b4 axb4 22. a5 Nxc4 23. a6 b5 24. 0-0 Kb8 25. Rfb1 Nxd2 26. Qxd2 Bg5 27. a7+ Ka8 28. Qxb4 c6 29. Be4 Rc8 30. Qa5 1/2-1/2

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Ostberg, Peter"]
[Black "Ornstein, Axel"]
[Result "0-1"]
[ECO "A30"]
[BlackElo "2440"]
[PlyCount "80"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. 0-0 e6 6. Nc3 Be7 7. d4 cxd4 8. Qxd4 Nc6 9. Qf4 0-0 10. Rd1 Qb8 11. Qxb8 Raxb8 12. b3 Rfd8 13. Bb2 a6 14. e4 d6 15. Re1 b5 16. Bf1 b4 17. Nb1 Nd7 18. Nbd2 a5 19. Nd4 Nxd4 20. Bxd4 Nc5 21. a3 bxa3 22. Rxa3 Nxe4 23. Nxe4 Bxe4 24. Rxa5 Bc2 25. Ra7 Bf8 26. Rc1 Bxb3 27. f4 Rdc8 28. Be3 Rb4 29. Rb1 Rbb8 30. Bd3 d5 31. cxd5 Rc3 32. dxe6 Rxd3 33. exf7+ Kh8 34. Bf2 h5 35. f5 Kh7 36. h3 Bxf7 37. Rc1 Kg8 38. g4 Rxh3 39. g5 Bd5 40. Bd4 Rh1+ 0-1

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Ostberg, Peter"]
[Black "Rorvall, Goran"]
[Result "0-1"]
[ECO "D34"]
[BlackElo "2410"]
[PlyCount "61"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 d5 5. cxd5 exd5 6. Bg2 Be7 7. 0-0 0-0 8. Nc3 Nc6 9. Bf4 Be6 10. dxc5 Bxc5 11. Rc1 Bb6 12. Nb5 Qd7 13. Nbd4 Nxd4 14. Nxd4 Bh3 15. Qd3 Bxg2 16. Kxg2 Rfe8 17. Nf3 Re6 18. Rc2 Rae8 19. Rfc1 Ne4 20. e3 h6 21. h4 Rf6 22. h5 Qg4 23. Rh1 Qe6 24. b4 Rf5 25. a4 a6 26. a5 Ba7 27. Rc7 Rxf4 28. exf4 Nxf2 29. Qc2 Nxh1 30. Rxb7 Rc8 31. Qd2 0-1

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Ostberg, Peter"]
[Black "Thornblom, Nils"]
[Result "1/2-1/2"]
[ECO "C16"]
[PlyCount "42"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Qd7 5. Nf3 b6 6. Bd2 Ba6 7. Bxa6 Nxa6 8. 0-0 Ne7 9. Qe2 Bxc3 10. Bxc3 Nb8 11. b4 0-0 12. a4 Qc8 13. Bd2 c5 14. c3 cxb4 15. cxb4 Qc4 16. Qe3 Qc2 17. Rfc1 Qe4 18. Rc7 Nbc6 19. Re1 Qxe3 20. fxe3 Rfc8 21. Rxc8+ Rxc8 1/2-1/2

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Ostberg, Peter"]
[Black "Wedberg, Tom"]
[Result "1/2-1/2"]
[ECO "A52"]
[BlackElo "2350"]
[PlyCount "57"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Nc6 5. e3 Ngxe5 6. Be2 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 d6 9. 0-0 0-0 10. Qb3 Rb8 11. Rad1 Qe7 12. Qa3 b6 13. Qc3 a5 14. Nxe5 Qxe5 15. Qxe5 Nxe5 16. Nf3 Bg4 17. Rfe1 Nxf3+ 18. Bxf3 Bxf3 19. gxf3 Rfe8 20. a4 Re6 21. Rd4 Rbe8 22. Red1 f5 23. Kf1 Kf7 24. Ke2 Rg6 25. Rh4 h6 26. Rhd4 Rg2 27. Rh1 Rg5 28. Rd5 f4 29. h4 1/2-1/2

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Schussler, Harry"]
[Black "Ostberg, Peter"]
[Result "1/2-1/2"]
[ECO "C06"]
[WhiteElo "2360"]
[PlyCount "97"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 f6 9. exf6 Nxf6 10. 0-0 Bd6 11. Nf3 0-0 12. Bf4 Bxf4 13. Nxf4 Qd6 14. Ne2 Bd7 15. Qd2 Rae8 16. Ng3 e5 17. dxe5 Nxe5 18. Nxe5 Rxe5 19. Rae1 Rfe8 20. Re2 Rxe2 21. Bxe2 Qe5 22. Rd1 Be6 23. Bf3 Bf7 24. Nf1 b6 25. Ne3 Rc8 26. g3 Kh8 27. Kg2 h6 28. h4 Rc7 29. a3 Rd7 30. Qd4 Qxd4 31. Rxd4 h5 32. Kf1 Kg8 33. Ke2 Be6 34. Kd2 Kf7 35. Kc3 Rc7+ 36. Kd2 Rd7 37. Ng2 Bg4 38. Bxg4 Nxg4 39. f3 Nf6 40. Nf4 Ke7 41. g4 hxg4 42. fxg4 Kd6 43. g5 Ne4+ 44. Ke3 Ke5 45. Nd3+ Kf5 46. Nb4 Ke5 47. Nd3+ Kf5 48. Rb4 Rd8 49. Kd4 1/2-1/2

[Event "SWE-ch"]
[Site "Stockholm"]
[Date "1977.??.??"]
[Round "?"]
[White "Svensson, Gert"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "E54"]
[WhiteElo "2260"]
[PlyCount "80"]
[EventDate "1977.07.03"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[EventCategory "3"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 0-0 6. Nf3 d5 7. 0-0 dxc4 8. Bxc4 Bd7 9. Ne5 Bc6 10. Nxc6 Nxc6 11. a3 Ba5 12. dxc5 Bxc3 13. bxc3 Qa5 14. Qe2 Qxc5 15. Rb1 Na5 16. Bd3 e5 17. e4 Rad8 18. Rd1 b6 19. Rb5 Qe7 20. Bg5 h6 21. Bh4 Nb7 22. Bxf6 Qxf6 23. Rd5 Nc5 24. Bc4 Rc8 25. g3 Na4 26. Rd6 Qe7 27. Rd7 Qc5 28. Ba6 Nxc3 29. Qf3 Nxd1 30. Bxc8 Nxf2 31. Qxf2 Qxf2+ 32. Kxf2 Rxc8 33. Rxa7 Rc2+ 34. Kg1 f6 35. Ra4 Rb2 36. Rc4 b5 37. Rc8+ Kh7 38. Rb8 Rb3 39. Kg2 Rxa3 40. Rxb5 Ra2+ 0-1

[Event "Rilton Cup-05 1975/76"]
[Site "Stockholm"]
[Date "1975.12.30"]
[Round "4"]
[White "Jansson, Borje"]
[Black "Ostberg, Peter"]
[Result "1-0"]
[ECO "E61"]
[PlyCount "45"]
[EventDate "1975.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 0-0 5. Bg5 c5 6. e3 h6 7. Bh4 d6 8. Be2 g5 9. Bg3 Nh5 10. dxc5 Nxg3 11. hxg3 dxc5 12. Qc2 Re8 13. Rd1 Nd7 14. Qa4 e6 15. Nb5 Rf8 16. Nd6 Nb6 17. Qa5 Qe7 18. Qxc5 Na4 19. Qa3 Nxb2 20. Rd2 Bd7 21. Rxb2 Bxb2 22. Qxb2 Qxd6 23. Qf6 1-0

[Event "Rilton Cup-05 1975/76"]
[Site "Stockholm"]
[Date "1975.12.29"]
[Round "3"]
[White "Ostberg, Peter"]
[Black "Rantanen, Yrjo A"]
[Result "1-0"]
[ECO "B47"]
[PlyCount "79"]
[EventDate "1975.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SWE"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. g3 Nf6 7. Bg2 Nc6 8. 0-0 Be7 9. Nb3 0-0 10. g4 d5 11. exd5 Rd8 12. a3 exd5 13. h3 d4 14. Ne2 Qb6 15. Nf4 g5 16. Nd3 Nd5 17. Qf3 Be6 18. Re1 Rac8 19. Nd2 Qc7 20. Ne4 Ne5 21. Qe2 Nxd3 22. cxd3 Nf4 23. Bxf4 Qxf4 24. Ng3 Rc7 25. Nh5 Qd6 26. Rac1 Rdc8 27. Rxc7 Rxc7 28. Be4 Qc5 29. Qf3 Qc2 30. Nf6+ Bxf6 31. Qxf6 Qd2 32. Rf1 Rc1 33. Qd8+ Kg7 34. Qxd4+ f6 35. Qb6 Bc8 36. Qd8 Rxf1+ 37. Kxf1 Be6 38. Qe7+ Bf7 39. Qxb7 a5 40. Kg2 1-0

[Event "Laurits Rasmussen Memorial"]
[Site "Randers"]
[Date "1973.10.20"]
[Round "7"]
[White "Sorensen, Jorn"]
[Black "Ostberg, Peter"]
[Result "0-1"]
[ECO "B84"]
[PlyCount "80"]
[EventDate "1973.10.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 Nc6 7. Be2 e6 8. 0-0 Be7 9. Kh1 0-0 10. Nb3 b6 11. Be3 Bb7 12. f3 Qc7 13. Qe1 Nd7 14. Qf2 Bf6 15. f4 Nb4 16. Bf3 Rac8 17. Nd4 Rfe8 18. Ra3 Nc5 19. Qd2 Qb8 20. Nce2 Nc6 21. Ng3 g6 22. f5 Ne5 23. fxg6 hxg6 24. b3 Bg7 25. Bh6 Qc7 26. Bxg7 Kxg7 27. Qg5 Kh7 28. Be2 Qd8 29. Qe3 Kg7 30. Raa1 Rh8 31. Rf4 Rh4 32. Raf1 Rxf4 33. Qxf4 Qe7 34. Bg4 Rh8 35. Bh3 Rh4 36. Qf2 Nxe4 37. Nxe4 Rxe4 38. c3 g5 39. Nf3 Rf4 40. Qe2 Qf6 0-1

[Event "Laurits Rasmussen Memorial"]
[Site "Randers"]
[Date "1973.10.19"]
[Round "6"]
[White "Vavpetic, Vide"]
[Black "Ostberg, Peter"]
[Result "1/2-1/2"]
[ECO "C45"]
[PlyCount "84"]
[EventDate "1973.10.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Bd3 d5 7. e5 Nd7 8. 0-0 Nc5 9. Be3 d4 10. Bf4 Be6 11. Be2 Be7 12. c3 d3 13. Bf3 Qd7 14. b4 Nb7 15. b5 Nd8 16. Be4 Bf5 17. Qf3 Bxe4 18. Qxe4 Rb8 19. bxc6 Nxc6 20. Rd1 Rd8 21. Nd2 0-0 22. Rab1 Qe6 23. Rb7 Rd7 24. Be3 Nxe5 25. Rxa7 f5 26. Qa4 Kh8 27. Bd4 Ng4 28. Nf3 Bd6 29. Rxd3 Re7 30. Rd1 Rfe8 31. Ra8 c5 32. Rxe8+ Rxe8 33. Be3 Nxe3 34. Rxd6 Qe7 35. Rd7 Qe6 36. Ng5 Qg6 37. Rd6 Rb8 38. fxe3 Qxg5 39. Qd1 Qxe3+ 40. Kh1 Qe7 41. h3 Re8 42. Rd7 Qh4 1/2-1/2

[Event "Laurits Rasmussen Memorial"]
[Site "Randers"]
[Date "1973.10.18"]
[Round "5"]
[White "Holm Pedersen, Sejer"]
[Black "Ostberg, Peter"]
[Result "1-0"]
[ECO "D87"]
[PlyCount "79"]
[EventDate "1973.10.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 0-0 8. Ne2 c5 9. 0-0 Nc6 10. Be3 Qc7 11. Rc1 Rd8 12. f4 e6 13. f5 exf5 14. Bg5 Rf8 15. exf5 Bxf5 16. Ng3 Be6 17. d5 Ne5 18. dxe6 Nxc4 19. e7 Rfe8 20. Rxf7 Qe5 21. Qg4 Ne3 22. Rxg7+ Kxg7 23. Qh4 Nd5 24. Rf1 Kg8 25. Kh1 Rxe7 26. c4 Rf8 27. cxd5 Rxf1+ 28. Nxf1 Rf7 29. Kg1 Qf5 30. Nd2 Qxd5 31. Nf3 b5 32. Be3 a5 33. h3 b4 34. Nd2 a4 35. Ne4 b3 36. axb3 Qxb3 37. Bxc5 Qb1+ 38. Kh2 Qa1 39. Qd8+ Kg7 40. Bd4+ 1-0

[Event "Laurits Rasmussen Memorial"]
[Site "Randers"]
[Date "1973.10.17"]
[Round "4"]
[White "Ostberg, Peter"]
[Black "Carlsson, Aake"]
[Result "0-1"]
[ECO "B13"]
[PlyCount "81"]
[EventDate "1973.10.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4 7. cxd5 Nxd5 8. Qb3 Bxf3 9. gxf3 e6 10. Qxb7 Nxd4 11. Bb5+ Nxb5 12. Qc6+ Ke7 13. Qxb5 Nxc3 14. bxc3 f6 15. Qb7+ Ke8 16. Be3 Qc8 17. Qxc8+ Rxc8 18. Kd2 Bc5 19. Rab1 Bxe3+ 20. fxe3 Rf8 21. Rb7 Rf7 22. Rxf7 Kxf7 23. Rb1 Rc7 24. Rb8 g5 25. Kd3 Ke7 26. c4 Kd6 27. h3 h5 28. a4 Rc5 29. Kc3 Rf5 30. Kd4 Rxf3 31. c5+ Kc7 32. Ra8 Kb7 33. Re8 e5+ 34. Kc4 Rxh3 35. Re6 Rh4+ 36. Kd5 Rxa4 37. Rxf6 g4 38. Rf7+ Ka6 39. Rg7 h4 40. e4 g3 41. Rg4 0-1

[Event "Laurits Rasmussen Memorial"]
[Site "Randers"]
[Date "1973.10.16"]
[Round "3"]
[White "Jensen, Vagn"]
[Black "Ostberg, Peter"]
[Result "1/2-1/2"]
[ECO "B69"]
[PlyCount "57"]
[EventDate "1973.10.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 Be7 10. Nf3 b5 11. Bxf6 gxf6 12. f5 Qb6 13. g3 0-0-0 14. Bh3 h5 15. Ne2 Bf8 16. Kb1 Ne5 17. Nf4 Nxf3 18. Qc3+ Qc6 19. Qxf3 exf5 20. Nd5 fxe4 21. Qxe4 Kb8 22. Bxd7 Rxd7 23. Rd3 Bg7 24. Qf5 h4 25. Re1 Rb7 26. Nb4 Qb6 27. Ra3 Ra7 28. Rc3 Re7 29. Nxa6+ 1/2-1/2

[Event "Laurits Rasmussen Memorial"]
[Site "Randers"]
[Date "1973.10.15"]
[Round "2"]
[White "Aspstrom, Yngve"]
[Black "Ostberg, Peter"]
[Result "1-0"]
[ECO "C75"]
[PlyCount "80"]
[EventDate "1973.10.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. 0-0 Bd7 6. c3 Nge7 7. d4 h6 8. Be3 Ng6 9. Ne1 Be7 10. g3 b5 11. Bc2 Bh3 12. Ng2 Qc8 13. Nd2 Bf6 14. Nb3 0-0 15. Qd2 Re8 16. f3 Qd7 17. d5 Nce7 18. Rfd1 Rab8 19. Na5 Red8 20. Bb3 c5 21. dxc6 Nxc6 22. Nxc6 Qxc6 23. Bd5 Qd7 24. Bxh6 Ne7 25. Be3 Nxd5 26. exd5 Rbc8 27. Ne1 Re8 28. Nd3 Qf5 29. Nf2 Qh7 30. Bg5 Bxg5 31. Qxg5 Bf5 32. Re1 b4 33. Rac1 bxc3 34. Rxc3 Rxc3 35. bxc3 f6 36. Qe3 Rb8 37. Qa7 Rb2 38. Qxa6 Rxf2 39. Qa8+ Kf7 40. Qa7+ Kf8 1-0

[Event "Laurits Rasmussen Memorial"]
[Site "Randers"]
[Date "1973.10.14"]
[Round "1"]
[White "Ostberg, Peter"]
[Black "Steffensen, Leo"]
[Result "1-0"]
[ECO "B75"]
[PlyCount "33"]
[EventDate "1973.10.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "DEN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 d6 8. f3 Nd7 9. Bb5 Qa5 10. 0-0 Nxd4 11. Bxd4 Bxd4+ 12. Qxd4 0-0 13. Nd5 Re8 14. c4 e5 15. Qf2 Re6 16. Qh4 Nf8 17. b4 1-0

