[Event "Eksjo-02"]
[Site "Eksjo"]
[Date "1974.03.17"]
[Round "9"]
[White "Lehmann, Heinz"]
[Black "Ivarsson, Jonny"]
[Result "1-0"]
[ECO "B42"]
[PlyCount "35"]
[EventDate "1974.03.09"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Ba7 7. Qe2 Nc6 8. Nc3 d6 9. Be3 Bxe3 10. Qxe3 Nf6 11. 0-0-0 b5 12. f4 Bd7 13. Be2 Qb8 14. g4 Ke7 15. g5 Ne8 16. e5 dxe5 17. Qc5+ Nd6 18. fxe5 1-0

[Event "Eksjo-02"]
[Site "Eksjo"]
[Date "1974.03.16"]
[Round "8"]
[White "Ivarsson, Jonny"]
[Black "Akvist, Hakan"]
[Result "1-0"]
[ECO "C96"]
[PlyCount "81"]
[EventDate "1974.03.09"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[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. h3 Na5 10. Bc2 c5 11. d4 Nd7 12. Nbd2 cxd4 13. cxd4 Nc6 14. Nb3 a5 15. Be3 a4 16. Nbd2 Bf6 17. Nf1 exd4 18. Nxd4 Nxd4 19. Bxd4 Bxd4 20. Qxd4 Ne5 21. Ne3 Bxh3 22. f4 Nc6 23. Qc3 Bd7 24. Rad1 b4 25. Qc4 Qh4 26. Rf1 Rfc8 27. Rxd6 Be6 28. Qe2 b3 29. axb3 axb3 30. Bb1 Na5 31. f5 Nc4 32. Rdd1 Nxe3 33. Qxe3 Bc4 34. Bd3 h5 35. e5 Bd5 36. f6 Ra5 37. Bf5 Re8 38. Rd4 Qxf6 39. Bh7+ Kxh7 40. Rxf6 gxf6 41. Qd3+ 1-0

[Event "Eksjo-02"]
[Site "Eksjo"]
[Date "1974.03.15"]
[Round "7"]
[White "Ek, Hans"]
[Black "Ivarsson, Jonny"]
[Result "1-0"]
[ECO "E61"]
[PlyCount "82"]
[EventDate "1974.03.09"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 0-0 5. Bf4 d6 6. e3 Nbd7 7. h3 Re8 8. Be2 b6 9. 0-0 Bb7 10. Bh2 e5 11. dxe5 dxe5 12. Qc2 a5 13. Rfd1 Qe7 14. Rd2 e4 15. Nd4 Ne5 16. Rad1 h6 17. Ndb5 Rac8 18. Nd5 Qc5 19. a3 Nxd5 20. cxd5 Qxc2 21. Rxc2 Re7 22. f4 exf3 23. gxf3 f5 24. e4 fxe4 25. fxe4 g5 26. Nd4 Nf7 27. Ne6 Be5 28. Bb5 Bxh2+ 29. Kxh2 Nd6 30. Bd3 Ne8 31. Nd4 Rd8 32. Nf5 Rh7 33. Nd4 Re7 34. Nf5 Rh7 35. Rc3 Kh8 36. a4 Bc8 37. Nd4 h5 38. Nc6 Rdd7 39. Na7 Bb7 40. Bb5 Rde7 41. Bxe8 Rxe8 1-0

[Event "Eksjo-02"]
[Site "Eksjo"]
[Date "1974.03.14"]
[Round "6"]
[White "Ivarsson, Jonny"]
[Black "Lundin, Erik"]
[Result "1-0"]
[ECO "C93"]
[PlyCount "147"]
[EventDate "1974.03.09"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[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. h3 h6 10. d4 Re8 11. Nbd2 Bf8 12. Nf1 Bd7 13. Ng3 Na5 14. Bc2 c5 15. d5 g6 16. b3 Bg7 17. Be3 Nb7 18. Qe2 Qc7 19. a3 Rec8 20. Rec1 Qd8 21. Bd3 Na5 22. Nd2 Ne8 23. b4 c4 24. Bc2 Nb7 25. a4 h5 26. Qf1 h4 27. Ne2 g5 28. a5 Bf6 29. g3 Ng7 30. gxh4 gxh4 31. Qg2 Kh7 32. Kh1 Qe7 33. Rg1 Rh8 34. Qf3 Kg8 35. Rg2 Rh7 36. Rag1 Kh8 37. Nf1 Rf8 38. Nh2 Ne8 39. Bd2 Bg7 40. Ng4 Nd8 41. Bc1 f6 42. Qe3 Nf7 43. f4 Nh6 44. f5 Ng8 45. Qf2 Nc7 46. Rf1 Qd8 47. Ng1 Ne7 48. Nf3 Be8 49. Rfg1 Bh5 50. Nxh4 Rg8 51. Bd1 Ne8 52. Kh2 Bf8 53. Bf3 Bf7 54. Bd2 Bg7 55. Be1 Bh6 56. Nxh6 Rxh6 57. Bd2 Rxg2+ 58. Rxg2 Rh7 59. Ng6+ Bxg6 60. fxg6 Rg7 61. Qh4+ Kg8 62. Bh5 Nc8 63. Bg4 Nc7 64. Bxc8 Qxc8 65. Qxf6 Ne8 66. Qh4 Qd7 67. Bh6 Re7 68. Rf2 Ng7 69. Qg5 Qe8 70. h4 Rd7 71. h5 Qe7 72. Qg4 Qe8 73. Bxg7 Rxg7 74. Rf6 1-0

[Event "Eksjo-02"]
[Site "Eksjo"]
[Date "1974.03.13"]
[Round "5"]
[White "Kinnmark, Ove"]
[Black "Ivarsson, Jonny"]
[Result "1-0"]
[ECO "B42"]
[PlyCount "59"]
[EventDate "1974.03.09"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Ba7 7. 0-0 Nc6 8. Qe2 d6 9. Be3 Bxe3 10. Qxe3 Nf6 11. f4 0-0 12. N1d2 Qc7 13. Qh3 Nb4 14. Qh4 Nxd3 15. cxd3 b5 16. Rf3 Rd8 17. Raf1 Bb7 18. g4 Nd7 19. f5 exf5 20. Rh3 Nf8 21. gxf5 Qb6+ 22. Rf2 f6 23. Rg3 Kh8 24. Kf1 Rd7 25. Rfg2 d5 26. Qh6 Ng6 27. Qe3 d4 28. Qg1 Nh4 29. Rf2 Re8 30. Rh3 1-0

[Event "Eksjo-02"]
[Site "Eksjo"]
[Date "1974.03.12"]
[Round "4"]
[White "Ivarsson, Jonny"]
[Black "Grabczewski, Romuald"]
[Result "1-0"]
[ECO "C96"]
[PlyCount "133"]
[EventDate "1974.03.09"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[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. h3 Na5 10. Bc2 c5 11. d4 Nd7 12. Nbd2 cxd4 13. cxd4 Nc6 14. Nb3 a5 15. Be3 a4 16. Nbd2 Bf6 17. Nf1 Nb6 18. b3 Nb4 19. Bb1 Be6 20. Qd2 Na6 21. Bd3 axb3 22. axb3 Bxb3 23. dxe5 Be7 24. Bxb5 Nc5 25. exd6 Qxd6 26. Qxd6 Bxd6 27. e5 Be7 28. Nd4 Nd5 29. Nf5 Rac8 30. Rec1 Ne6 31. Nd2 Bc2 32. Bd7 Rc7 33. Bxe6 fxe6 34. Nd4 Bf5 35. g4 Rxc1+ 36. Rxc1 Nxe3 37. fxe3 Bb4 38. N2b3 Be4 39. Nxe6 Re8 40. Rc4 Bd5 41. Rxb4 Rxe6 42. Nc5 Rxe5 43. Kf2 Bc6 44. Rc4 Bd5 45. Rc3 Re8 46. g5 Kf7 47. Kg3 Kg6 48. h4 Kf5 49. Rd3 Bc4 50. e4+ Ke5 51. Rd7 Rc8 52. Nb7 Bg8 53. Rxg7 Be6 54. Rxh7 Rc3+ 55. Kf2 Kxe4 56. Re7 Rc2+ 57. Ke1 Kd5 58. h5 Rh2 59. h6 Rh5 60. Rg7 Ke5 61. Nd8 Bf5 62. Kd2 Kf4 63. Nf7 Be6 64. g6 Kf5 65. h7 Kf6 66. Rg8 Bxf7 67. gxf7 1-0

[Event "Eksjo-02"]
[Site "Eksjo"]
[Date "1974.03.11"]
[Round "3"]
[White "Ivarsson, Jonny"]
[Black "Bilek, Istvan"]
[Result "0-1"]
[ECO "B06"]
[PlyCount "64"]
[EventDate "1974.03.09"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 a6 5. Nf3 b5 6. Bd3 Nd7 7. 0-0 c5 8. Be3 Bb7 9. e5 b4 10. Na4 cxd4 11. Bxd4 Nh6 12. Qe1 Bxf3 13. Rxf3 Qa5 14. b3 dxe5 15. fxe5 Nxe5 16. Bxe5 Qxe5 17. Qxe5 Bxe5 18. Re1 Bd4+ 19. Kf1 e5 20. Rf6 Ng4 21. Rd6 Ne3+ 22. Ke2 Ke7 23. Rc6 Rhc8 24. Rxc8 Rxc8 25. g3 a5 26. Kd2 Nd5 27. g4 Ke6 28. Bc4 f5 29. Kd3 Kd6 30. gxf5 gxf5 31. Rf1 Ne3 32. Re1 e4+ 0-1

[Event "Eksjo-02"]
[Site "Eksjo"]
[Date "1974.03.10"]
[Round "2"]
[White "Bohm, Hans"]
[Black "Ivarsson, Jonny"]
[Result "1-0"]
[ECO "A48"]
[PlyCount "49"]
[EventDate "1974.03.09"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 g6 3. Nd2 Bg7 4. c3 d6 5. Ngf3 Nbd7 6. e3 0-0 7. Bd3 b6 8. 0-0 Bb7 9. Qe2 a6 10. a4 h6 11. Bh4 e5 12. Be4 Bxe4 13. Nxe4 g5 14. Nxf6+ Nxf6 15. dxe5 dxe5 16. Bg3 Nd7 17. Rfd1 Qe7 18. e4 Rfe8 19. Nd2 Qe6 20. Nc4 b5 21. Ne3 c6 22. Nf5 Bf8 23. h4 f6 24. Qh5 Kh7 25. Rd6 1-0

[Event "Eksjo-02"]
[Site "Eksjo"]
[Date "1974.03.09"]
[Round "1"]
[White "Ivarsson, Jonny"]
[Black "Rantanen, Yrjo A"]
[Result "0-1"]
[ECO "B47"]
[PlyCount "138"]
[EventDate "1974.03.09"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. g3 Nc6 7. Bg2 Nf6 8. 0-0 Be7 9. Re1 Nxd4 10. Qxd4 e5 11. Qd3 h6 12. a4 0-0 13. h3 d6 14. Be3 Be6 15. f4 exf4 16. gxf4 Rfe8 17. Bd4 Rac8 18. Rad1 Nd7 19. f5 Bc4 20. Qg3 f6 21. Rd2 Ne5 22. Bf1 d5 23. exd5 Bc5 24. Kh1 Bxd4 25. Rxd4 Bxf1 26. Rxf1 Qb6 27. Rh4 Qxb2 28. Ne4 Nf7 29. c4 Qe5 30. Rg1 Qxg3 31. Rxg3 Kf8 32. Nd2 Nd6 33. Rf4 Re5 34. Rb3 Re2 35. Nf3 Nxc4 36. Rxb7 Nd6 37. Rb1 Ne4 38. Nd4 Ng3+ 39. Kg1 Rd2 40. Ne6+ Kg8 41. Rf2 Rxd5 42. Nxg7 Kxg7 43. Rg2 Rc3 44. Kh2 Rxf5 45. Rxg3+ Rxg3 46. Kxg3 Kg6 47. Rb6 Ra5 48. Rb4 Re5 49. Kf4 Rc5 50. Kf3 Rc3+ 51. Kg2 Ra3 52. Rc4 a5 53. Rg4+ Kf5 54. Rh4 Ke5 55. Rxh6 Ra2+ 56. Kf3 Rxa4 57. Rh8 Ra1 58. h4 Kf5 59. Rh5+ Kg6 60. Rc5 a4 61. h5+ Kg7 62. Kg2 a3 63. Rc7+ Kh6 64. Rc6 Kg5 65. h6 a2 66. Ra6 Kg6 67. Kh2 Kh7 68. Kg2 f5 69. Kh2 f4 0-1

[Event "Nordic-ch"]
[Site "Grenaa"]
[Date "1973.07.27"]
[Round "5"]
[White "Sorensen, Arne"]
[Black "Ivarsson, Jonny"]
[Result "1/2-1/2"]
[ECO "B42"]
[PlyCount "87"]
[EventDate "1973.07.23"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "DEN"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Ba7 7. Qe2 d6 8. Be3 Bxe3 9. Qxe3 Nf6 10. Nc3 0-0 11. Rd1 Nc6 12. 0-0 b5 13. f4 Ng4 14. Qh3 Qb6+ 15. Kh1 e5 16. Qf3 exf4 17. Nd5 Qa7 18. Qxf4 Nge5 19. c3 Be6 20. Bb1 Rac8 21. Qg5 Kh8 22. Nd4 h6 23. Qg3 Bg4 24. Rd2 Nc4 25. Rdf2 N6e5 26. h3 Bd7 27. Nf5 Bxf5 28. exf5 f6 29. Re1 a5 30. Rfe2 Rf7 31. Be4 a4 32. a3 Qc5 33. Nf4 Nb6 34. Rd1 Nec4 35. Bd5 Nxd5 36. Rxd5 Qc6 37. Ng6+ Kh7 38. Ne7 Qe8 39. Qg6+ Kh8 40. Nxc8 Qxe2 41. Qxf7 Qf1+ 42. Kh2 Qf4+ 43. Kg1 Qc1+ 44. Kf2 1/2-1/2

[Event "Eksjo-01"]
[Site "Eksjo"]
[Date "1973.04.28"]
[Round "9"]
[White "Ivarsson, Jonny"]
[Black "Czerniak, Moshe"]
[Result "0-1"]
[ECO "B06"]
[PlyCount "54"]
[EventDate "1973.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 c6 5. Nf3 Bg4 6. Be2 Qb6 7. e5 Nh6 8. Ne4 0-0 9. c3 c5 10. dxc5 Qc6 11. Nf2 Qxc5 12. exd6 Rd8 13. Qb3 Nc6 14. Qxb7 Bxc3+ 15. Kf1 Rab8 16. Qa6 Nb4 17. Qc4 Qxc4 18. Bxc4 Bxf3 19. gxf3 Rxd6 20. Kg2 Bg7 21. a3 Nc2 22. Ra2 Nf5 23. Kh3 Nce3 24. Be2 Bh6 25. Nd3 Rbd8 26. Nc5 Bxf4 27. Ne4 g5 0-1

[Event "Eksjo-01"]
[Site "Eksjo"]
[Date "1973.04.27"]
[Round "8"]
[White "Hecht, Hans Joachim"]
[Black "Ivarsson, Jonny"]
[Result "1-0"]
[ECO "B30"]
[PlyCount "71"]
[EventDate "1973.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. Bb5 Nge7 5. 0-0 a6 6. Bxc6 Nxc6 7. d4 cxd4 8. Nxd4 Be7 9. Nxc6 bxc6 10. e5 0-0 11. Bf4 f6 12. exf6 Bxf6 13. Bd6 Rf7 14. Ne4 Bxb2 15. Rb1 Bf6 16. c4 a5 17. a4 Ba6 18. Qd3 Be7 19. Rfc1 Rf5 20. Qd4 Bxd6 21. Nxd6 c5 22. Qe3 Rh5 23. Qf3 Rh4 24. Qf7+ Kh8 25. f4 Rh6 26. Rb3 Rf6 27. Qh5 Qf8 28. Rh3 h6 29. Qe5 Rb8 30. Rf3 Rb6 31. Rd1 Bb7 32. Rff1 Bc6 33. Nb5 d5 34. Qc7 Qb8 35. Qe7 dxc4 36. Rd8+ 1-0

[Event "Eksjo-01"]
[Site "Eksjo"]
[Date "1973.04.26"]
[Round "7"]
[White "Ivarsson, Jonny"]
[Black "Bellin, Robert"]
[Result "1-0"]
[ECO "B68"]
[PlyCount "69"]
[EventDate "1973.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 Be7 10. Nf3 b5 11. e5 b4 12. exf6 bxc3 13. Qxc3 gxf6 14. Bh4 d5 15. Kb1 Nb4 16. Nd4 Rc8 17. Qe3 Qa5 18. a3 Nc6 19. Nb3 Qa4 20. Bd3 Na5 21. Nxa5 Qxa5 22. Qd4 Rg8 23. Bxf6 Bc5 24. Qe5 Qb6 25. Bxh7 Rxg2 26. Rxd5 Bxa3 27. Rd3 Be7 28. Rg3 Rxg3 29. hxg3 Rc5 30. Qd4 Qa5 31. Be4 Rh5 32. Rd1 Bxf6 33. Qxf6 Qc7 34. Bg6 Ba4 35. Rd8+ 1-0

[Event "Eksjo-01"]
[Site "Eksjo"]
[Date "1973.04.25"]
[Round "6"]
[White "Akvist, Hakan"]
[Black "Ivarsson, Jonny"]
[Result "1-0"]
[ECO "B40"]
[PlyCount "173"]
[EventDate "1973.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. g3 Nc6 5. Bg2 b5 6. 0-0 Bb7 7. Re1 d6 8. d3 Nf6 9. e5 dxe5 10. Nxe5 Rc8 11. Nxc6 Bxc6 12. Bxc6+ Rxc6 13. Qf3 Qd7 14. a4 b4 15. Ne4 Be7 16. Nd2 Qd5 17. Kg2 0-0 18. Nc4 Rd8 19. b3 Qxf3+ 20. Kxf3 Nd5 21. Bb2 f6 22. Na5 Rb6 23. Nc4 Rc6 24. Kg2 e5 25. Re4 g5 26. h4 h6 27. hxg5 hxg5 28. Rh1 Bd6 29. Ree1 Rc7 30. Ne3 Nxe3+ 31. Rxe3 Rh7 32. Rxh7 Kxh7 33. g4 Kg6 34. Rh3 Rf8 35. Bc1 f5 36. gxf5+ Rxf5 37. Kf1 Be7 38. Ke2 Rf8 39. Rh2 Rf7 40. Bb2 Bf6 41. Ke3 Kf5 42. f3 Rb7 43. Bc1 Rg7 44. Kf2 Rc7 45. Be3 Bg7 46. Rh5 Bf6 47. Rh6 a5 48. Kg3 Rd7 49. Kf2 Rb7 50. Ke2 Rd7 51. Kd2 Rc7 52. Kd1 Rc6 53. Rh7 Ke6 54. Ke2 Rc8 55. Kf2 Rc6 56. Kg3 Kf5 57. Ra7 Bd8 58. Ra8 Bc7 59. Rf8+ Rf6 60. Rxf6+ Kxf6 61. Kg4 Bb6 62. Bxg5+ Ke6 63. Be3 Ba7 64. Kg5 Bb6 65. Kg6 Ba7 66. Kg7 Bb6 67. Kf8 Kd7 68. Kf7 Kd6 69. Ke8 Ke6 70. Bg5 Bc7 71. Be7 Bb6 72. Bf8 Ba7 73. Kd8 Bb6+ 74. Kc8 Kd5 75. Be7 Kc6 76. Bf6 Bc7 77. Bh4 Bb6 78. Bg5 Bc7 79. Bf6 Bd6 80. Bd8 Kd5 81. Bxa5 Kd4 82. Bb6 Kc3 83. a5 Kxc2 84. a6 Kxb3 85. a7 Kc2 86. a8Q b3 87. Qa4 1-0

[Event "Eksjo-01"]
[Site "Eksjo"]
[Date "1973.04.24"]
[Round "5"]
[White "Ivarsson, Jonny"]
[Black "Ljungqvist, Lennart"]
[Result "0-1"]
[ECO "C13"]
[PlyCount "48"]
[EventDate "1973.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 gxf6 7. Nf3 b6 8. Bb5+ c6 9. Bc4 Bb7 10. 0-0 Qc7 11. Re1 Nd7 12. Qd3 0-0-0 13. Ba6 Ne5 14. Nxe5 fxe5 15. c3 c5 16. Bxb7+ Qxb7 17. Rac1 Rhg8 18. Qh3 f5 19. Ng3 Bg5 20. Rc2 Rg6 21. Nxf5 exd4 22. cxd4 exf5 23. dxc5 Qe4 24. Qc3 Bd2 0-1

[Event "Eksjo-01"]
[Site "Eksjo"]
[Date "1973.04.23"]
[Round "4"]
[White "Soos, Bela"]
[Black "Ivarsson, Jonny"]
[Result "1/2-1/2"]
[ECO "E81"]
[PlyCount "112"]
[EventDate "1973.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 c6 6. Be3 a6 7. Bd3 Nbd7 8. Nge2 b5 9. b3 e5 10. d5 cxd5 11. cxd5 0-0 12. 0-0 Nh5 13. Rc1 f5 14. exf5 gxf5 15. f4 Ndf6 16. h3 b4 17. Na4 Ne4 18. Nb6 Rb8 19. Nxc8 Rxc8 20. Bxe4 fxe4 21. f5 Qa5 22. Qd2 Nf6 23. Rxc8 Rxc8 24. Rd1 h5 25. Bg5 Qb6+ 26. Kh2 Qf2 27. Ng3 Qxd2 28. Rxd2 Nh7 29. Nxe4 Nxg5 30. Nxg5 Bh6 31. h4 Rc3 32. g3 Bxg5 33. hxg5 Rf3 34. Kh3 Rxf5 35. Kh4 e4 36. Kxh5 Kg7 37. Re2 Re5 38. Kg4 a5 39. Kf4 Rxd5 40. Rxe4 Rd2 41. Re6 Rxa2 42. Rxd6 Rb2 43. Rd3 Kg6 44. Kg4 Rb1 45. Rd6+ Kg7 46. Ra6 Rxb3 47. Rxa5 Rb1 48. Rb5 b3 49. Rb7+ Kg6 50. Rb6+ Kg7 51. g6 b2 52. Kg5 Rg1 53. Rb7+ Kg8 54. Rxb2 Rxg3+ 55. Kf5 Rf3+ 56. Kg4 Rf1 1/2-1/2

[Event "Eksjo-01"]
[Site "Eksjo"]
[Date "1973.04.22"]
[Round "3"]
[White "Ivarsson, Jonny"]
[Black "Ek, Hans"]
[Result "0-1"]
[ECO "C16"]
[PlyCount "62"]
[EventDate "1973.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Qd7 5. Nh3 b6 6. Nf4 Bf8 7. h4 Ba6 8. Rh3 Bxf1 9. Kxf1 Ne7 10. Nce2 h5 11. b3 Nbc6 12. c4 dxc4 13. Bb2 cxb3 14. axb3 Nb4 15. Nc3 Ned5 16. Nxh5 a5 17. Qf3 Rd8 18. Ne4 Rxh5 19. Qxh5 Nf4 20. Qg4 Nxh3 21. gxh3 Qb5+ 22. Kg1 Qd3 23. Rd1 Qxb3 24. Rd2 a4 25. Ng5 a3 26. Qh5 Rd7 27. Ba1 Qb1+ 28. Kh2 Qf5 29. Bc3 Nd5 30. Qh8 Rd8 31. Nh7 Ke7 0-1

[Event "Eksjo-01"]
[Site "Eksjo"]
[Date "1973.04.21"]
[Round "2"]
[White "Liljedahl, Lennart"]
[Black "Ivarsson, Jonny"]
[Result "0-1"]
[ECO "A16"]
[PlyCount "102"]
[EventDate "1973.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. e3 c6 6. e4 e5 7. Nge2 d6 8. d4 Nbd7 9. 0-0 Re8 10. h3 exd4 11. Nxd4 a5 12. Re1 Nc5 13. Rb1 Qc7 14. b3 Bd7 15. a3 Rad8 16. b4 axb4 17. axb4 Ne6 18. Be3 Nxd4 19. Bxd4 Be6 20. Qd3 Nd7 21. Bxg7 Kxg7 22. f4 Nb6 23. Qd4+ Kg8 24. c5 dxc5 25. Qxc5 Rd3 26. Nd5 Bxd5 27. exd5 Rd8 28. Re7 Qd6 29. Re8+ Kg7 30. Rxd8 Qxd8 31. dxc6 bxc6 32. Kh2 Nd5 33. Qxc6 Ne3 34. Re1 Qd4 35. b5 Rd2 36. Rg1 Rb2 37. Kh1 h5 38. h4 Nf5 39. Qf3 Qb4 40. Bf1 Rb3 41. Bd3 Qc3 42. Rd1 Rxb5 43. Kg1 Rb2 44. Be4 Ne3 45. Rb1 Rxb1+ 46. Bxb1 Qe1+ 47. Kh2 Ng4+ 48. Kh3 Qxb1 49. f5 Qxf5 50. Qc3+ Kh7 51. Qc1 Ne3+ 0-1

[Event "Eksjo-01"]
[Site "Eksjo"]
[Date "1973.04.20"]
[Round "1"]
[White "Ivarsson, Jonny"]
[Black "Schmidt, Wlodzimierz"]
[Result "0-1"]
[ECO "B46"]
[PlyCount "74"]
[EventDate "1973.04.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "SWE"]
[EventCategory "5"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 Nge7 7. Bg2 Nxd4 8. Qxd4 Nc6 9. Qe3 Be7 10. b3 0-0 11. Bb2 d6 12. 0-0 Qc7 13. a4 Bd7 14. Rad1 Rfd8 15. Kh1 Rac8 16. f4 Nb4 17. Qe2 Bc6 18. f5 exf5 19. Rxf5 Bf8 20. Rdf1 Be8 21. Bh3 Qe7 22. R5f3 Rc5 23. Qd2 Qg5 24. Qf2 Qh5 25. Ba3 Qxh3 26. Bxb4 Rh5 27. g4 Qxg4 28. Rxf7 Rxh2+ 29. Qxh2 Bxf7 30. Rf4 Qh5 31. Qxh5 Bxh5 32. Nd5 Re8 33. Kg2 Bg6 34. Kf3 b5 35. Nc7 Rc8 36. Ne6 Be7 37. e5 dxe5 0-1

[Event "WchT Students 19th final B"]
[Site "Graz"]
[Date "1972.07.27"]
[Round "7.1"]
[White "Ivarsson, Jonny"]
[Black "Aijala, Jorma"]
[Result "0-1"]
[ECO "B68"]
[WhiteElo "2420"]
[PlyCount "56"]
[EventDate "1972.07.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "AUT"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]
[WhiteTeam "Sweden"]
[BlackTeam "Finland"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "FIN"]

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. e5 b4 12. exf6 bxc3 13. Qxc3 gxf6 14. Bh4 d5 15. f5 Nb4 16. Kb1 Rc8 17. Qb3 Qa5 18. a3 Nxc2 19. fxe6 fxe6 20. Bd3 Nxa3+ 21. bxa3 Rc3 22. Qb8+ Kf7 23. Ne5+ Kg7 24. Qb7 Qxa3 25. Bxf6+ Bxf6 26. Bc2 Rd8 27. Rhe1 Bxe5 28. Rxe5 Qd6 0-1

[Event "WchT Students 19th final B"]
[Site "Graz"]
[Date "1972.07.26"]
[Round "6.1"]
[White "Belliard Alonzo, Luis Manuel"]
[Black "Ivarsson, Jonny"]
[Result "1/2-1/2"]
[ECO "C84"]
[BlackElo "2420"]
[PlyCount "67"]
[EventDate "1972.07.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "AUT"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Dominican Republic"]
[BlackTeam "Sweden"]
[WhiteTeamCountry "DOM"]
[BlackTeamCountry "SWE"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d4 exd4 7. e5 Ne4 8. Bxc6 dxc6 9. Qxd4 Qxd4 10. Nxd4 0-0 11. Nd2 Nc5 12. N2f3 f5 13. Bg5 Re8 14. Rfe1 g6 15. g3 Bf8 16. Rad1 h6 17. Bc1 Ne6 18. Nh4 Kf7 19. Ng2 Nxd4 20. Rxd4 g5 21. b3 Be6 22. Rdd1 Rad8 23. f4 g4 24. Be3 Bd5 25. Nh4 Be4 26. c3 Be7 27. Kf2 Rxd1 28. Rxd1 Rd8 29. Rxd8 Bxd8 30. Ke1 Be7 31. b4 b6 32. Kd2 Bf8 33. a3 Be7 34. c4 1/2-1/2

[Event "WchT Students 19th final B"]
[Site "Graz"]
[Date "1972.07.25"]
[Round "5.1"]
[White "Ivarsson, Jonny"]
[Black "Marcus, Joost"]
[Result "0-1"]
[ECO "B19"]
[WhiteElo "2420"]
[BlackElo "2325"]
[PlyCount "66"]
[EventDate "1972.07.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "AUT"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Sweden"]
[BlackTeam "Netherlands"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "NED"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Qc7 11. Bd2 e6 12. 0-0-0 Ngf6 13. Qe2 0-0-0 14. Ne5 Nb8 15. Rh4 Bd6 16. c4 c5 17. Bc3 Rhe8 18. dxc5 Bxc5 19. Rxd8+ Rxd8 20. Ne4 Nxe4 21. Rxe4 Bf8 22. Nd3 Nc6 23. b4 a5 24. b5 Nb4 25. Ne1 Nd5 26. Be5 Qc5 27. Nc2 Nf6 28. Bd4 Qg5+ 29. f4 Qf5 30. Re3 Bd6 31. Kb2 Qxf4 32. Qe1 Bb4 33. Nxb4 Qxd4+ 0-1

[Event "WchT Students 19th final B"]
[Site "Graz"]
[Date "1972.07.24"]
[Round "4.1"]
[White "Hug, Werner"]
[Black "Ivarsson, Jonny"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2475"]
[BlackElo "2420"]
[PlyCount "63"]
[EventDate "1972.07.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "AUT"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Switzerland"]
[BlackTeam "Sweden"]
[WhiteTeamCountry "SUI"]
[BlackTeamCountry "SWE"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 Nge7 5. Bg2 g6 6. 0-0 Bg7 7. c3 d5 8. Re1 0-0 9. e5 d4 10. c4 a6 11. Bf4 b5 12. b3 bxc4 13. bxc4 Rb8 14. Nbd2 Bd7 15. Ne4 Rc8 16. Nxc5 Nxe5 17. Bxe5 Rxc5 18. Bxg7 Kxg7 19. Nxd4 Rc7 20. Qe2 Nc6 21. Nb3 Bc8 22. d4 Qd6 23. Rad1 Rd8 24. c5 Qd7 25. d5 exd5 26. Rxd5 Qg4 27. Bf3 Qe6 28. Qb2+ Qf6 29. Qxf6+ Kxf6 30. Rd6+ Rxd6 31. cxd6 Ne5 32. Rxe5 1-0

[Event "WchT Students 19th final B"]
[Site "Graz"]
[Date "1972.07.22"]
[Round "2.1"]
[White "Rosenberg, Michael"]
[Black "Ivarsson, Jonny"]
[Result "1/2-1/2"]
[ECO "C93"]
[BlackElo "2420"]
[PlyCount "53"]
[EventDate "1972.07.21"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "AUT"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Scotland"]
[BlackTeam "Sweden"]
[WhiteTeamCountry "SCO"]
[BlackTeamCountry "SWE"]

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. h3 h6 10. d4 Re8 11. Nbd2 Bf8 12. Nf1 Bb7 13. Ng3 g6 14. a4 Bg7 15. h4 Qe7 16. h5 Nxh5 17. Nxh5 gxh5 18. g3 exd4 19. cxd4 Qf6 20. Bd5 Nxd4 21. Nxd4 Bxd5 22. Nxb5 Rxe4 23. Nxc7 Rxe1+ 24. Qxe1 Qf3 25. Nxd5 Qxd5 26. Bf4 Qc6 27. Qd2 1/2-1/2

[Event "WchT Students 19th Group5"]
[Site "Graz"]
[Date "1972.07.20"]
[Round "5.1"]
[White "Ivarsson, Jonny"]
[Black "Skalkotas, Nikolaos"]
[Result "0-1"]
[ECO "B05"]
[WhiteElo "2420"]
[BlackElo "2245"]
[PlyCount "62"]
[EventDate "1972.07.16"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "AUT"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Sweden"]
[BlackTeam "Greece"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "GRE"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 e6 6. c4 Nb6 7. exd6 cxd6 8. 0-0 Be7 9. Nc3 0-0 10. b3 Nc6 11. Be3 d5 12. c5 Nc8 13. b4 a6 14. Rb1 Bf6 15. a4 N8e7 16. b5 Na5 17. bxa6 bxa6 18. Rb6 Bxf3 19. gxf3 Qc8 20. Kh1 Rd8 21. Rg1 Nf5 22. Bd3 Nc4 23. Nxd5 Rxd5 24. Bxc4 Rd8 25. Rg4 h5 26. Re4 Qxc5 27. dxc5 Rxd1+ 28. Kg2 Nh4+ 29. Kh3 Nxf3 30. c6 Rg1 31. c7 g5 0-1

[Event "WchT Students 19th Group5"]
[Site "Graz"]
[Date "1972.07.19"]
[Round "4.1"]
[White "Sax, Gyula"]
[Black "Ivarsson, Jonny"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2445"]
[BlackElo "2420"]
[PlyCount "63"]
[EventDate "1972.07.16"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "AUT"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Hungary"]
[BlackTeam "Sweden"]
[WhiteTeamCountry "HUN"]
[BlackTeamCountry "SWE"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. a4 Bb7 8. c3 d6 9. 0-0 0-0 10. d4 Qe8 11. Rd1 Bd8 12. Nbd2 Na5 13. Bc2 c5 14. dxe5 dxe5 15. axb5 axb5 16. b4 cxb4 17. cxb4 Nc6 18. Rxa8 Bxa8 19. Qxb5 Be7 20. Nxe5 Bxb4 21. Nef3 Bxd2 22. Bxd2 Nxe4 23. Re1 f5 24. Ng5 Qd7 25. Bb3+ Kh8 26. Bb4 Rf6 27. Nxe4 fxe4 28. Rxe4 h6 29. Bc3 Rf8 30. Rh4 Kh7 31. Bc2+ g6 32. Qg5 1-0

[Event "WchT Students 19th Group5"]
[Site "Graz"]
[Date "1972.07.18"]
[Round "3.1"]
[White "Ivarsson, Jonny"]
[Black "Hlousek, Zdenek"]
[Result "1/2-1/2"]
[ECO "B80"]
[WhiteElo "2420"]
[BlackElo "2355"]
[PlyCount "60"]
[EventDate "1972.07.16"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "AUT"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Sweden"]
[BlackTeam "Czechoslovakia"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "CSR"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. g3 d6 7. Bg2 Bd7 8. 0-0 Nc6 9. Re1 Be7 10. a4 Nf6 11. h3 0-0 12. Nxc6 Bxc6 13. a5 Rfe8 14. Be3 Nd7 15. Na4 Rac8 16. Nb6 Nxb6 17. axb6 Qd7 18. c4 Red8 19. Bd4 e5 20. Be3 Qe6 21. Qd3 g6 22. g4 Rf8 23. b4 Kg7 24. b5 axb5 25. cxb5 Bd7 26. Ra7 Rb8 27. Rc1 Bd8 28. Rd1 Be7 29. Rc1 Bd8 30. Rd1 Be7 1/2-1/2

[Event "WchT Students 19th Group5"]
[Site "Graz"]
[Date "1972.07.17"]
[Round "2.1"]
[White "Harandi, Khosro"]
[Black "Ivarsson, Jonny"]
[Result "1-0"]
[ECO "B73"]
[WhiteElo "2270"]
[BlackElo "2420"]
[PlyCount "61"]
[EventDate "1972.07.16"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "AUT"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Iran"]
[BlackTeam "Sweden"]
[WhiteTeamCountry "IRI"]
[BlackTeamCountry "SWE"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 Nf6 7. Be2 d6 8. 0-0 0-0 9. Qd2 Ng4 10. Bxg4 Bxg4 11. f4 Bd7 12. Rad1 Re8 13. f5 Ne5 14. Bh6 Bh8 15. Qf4 Bc6 16. Rf2 Qb6 17. Nb3 Rac8 18. h4 a5 19. a4 Qa7 20. h5 Bg7 21. Bxg7 Kxg7 22. f6+ Kg8 23. fxe7 Rxe7 24. h6 f5 25. exf5 Rf7 26. Nd4 Kh8 27. Ncb5 Qc5 28. Ne6 Qb4 29. Nxd6 Rxf5 30. Qxb4 axb4 31. Nxc8 1-0

[Event "WchT Students 19th Group5"]
[Site "Graz"]
[Date "1972.07.16"]
[Round "1.1"]
[White "Ivarsson, Jonny"]
[Black "Estevez Morales, Guillermo"]
[Result "1/2-1/2"]
[ECO "B81"]
[WhiteElo "2420"]
[BlackElo "2395"]
[PlyCount "83"]
[EventDate "1972.07.16"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "AUT"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]
[WhiteTeam "Sweden"]
[BlackTeam "Cuba"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "CUB"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 h6 7. Be3 Nc6 8. h3 a6 9. Bg2 Qc7 10. 0-0 Bd7 11. Qe2 Be7 12. Rad1 b5 13. a3 0-0 14. f4 Nxd4 15. Bxd4 Bc6 16. g5 hxg5 17. fxg5 Nh7 18. h4 g6 19. Qg4 e5 20. Be3 Bd7 21. Qg3 Be6 22. Rd2 Rab8 23. Nd5 Bxd5 24. exd5 b4 25. a4 Kg7 26. h5 Qd8 27. hxg6 fxg6 28. Rxf8 Kxf8 29. Be4 Bxg5 30. Rg2 Bxe3+ 31. Qxe3 Qb6 32. Qxb6 Rxb6 33. a5 Rb7 34. Rxg6 Rg7 35. Rxg7 Kxg7 36. Bd3 Nf6 37. Bxa6 Nxd5 38. Bb7 Nc7 39. a6 Nb5 40. Kf2 Kf6 41. Ke3 Ke6 42. Kd3 1/2-1/2

[Event "Nordic-ch32"]
[Site "Reykjavik"]
[Date "1971.08.??"]
[Round "?"]
[White "Gundersen, Helge Folmer"]
[Black "Ivarsson, Jonny"]
[Result "0-1"]
[ECO "C26"]
[PlyCount "80"]
[EventDate "1971.08.15"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "ISL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 Nxd5 5. Bg2 Be6 6. Nge2 Nc6 7. 0-0 Be7 8. d3 0-0 9. h3 Qd7 10. Kh2 Rad8 11. f4 exf4 12. Nxf4 Nxf4 13. Bxf4 Nd4 14. Qd2 c5 15. Ne4 Bd5 16. Rae1 b6 17. Nc3 Bxg2 18. Qxg2 Bd6 19. Bxd6 Qxd6 20. Re3 f5 21. Qf2 g5 22. Rfe1 f4 23. gxf4 Rxf4 24. Qg3 Nf3+ 25. Kh1 Nxe1 26. Qxe1 Rdf8 27. Kg1 Qd4 28. Kg2 Rf1 29. Qg3 R8f2+ 30. Qxf2 Rxf2+ 31. Kxf2 Qb4 32. Nd5 Qxb2 33. Re8+ Kf7 34. Re7+ Kg6 35. Rxa7 Qxc2+ 36. Ke3 Qc1+ 37. Ke2 Qb2+ 38. Kf3 Qe5 39. Ne7+ Kh5 40. Rb7 Qf4+ 0-1

[Event "Nordic-ch32"]
[Site "Reykjavik"]
[Date "1971.08.??"]
[Round "?"]
[White "Ivarsson, Jonny"]
[Black "Holm Pedersen, Sejer"]
[Result "0-1"]
[ECO "C18"]
[PlyCount "78"]
[EventDate "1971.08.15"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "ISL"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 0-0 8. Nf3 Nd7 9. Bd3 f5 10. Qh3 Qa5 11. Bd2 Nb6 12. g4 Nc4 13. gxf5 exf5 14. Bxc4 dxc4 15. Rg1 f4 16. Qg2 g6 17. Ng5 cxd4 18. cxd4 c3 19. Bc1 Qa4 20. Qe4 Bf5 21. Qxb7 Rae8 22. Qb3+ Qxb3 23. cxb3 Nc6 24. Nf3 Nxd4 25. Nxd4 Rxe5+ 26. Be3 fxe3 27. Nxf5 Rfxf5 28. f4 Rxf4 29. Rc1 Rf2 30. Rxc3 Rxh2 31. Rg3 e2 32. Rge3 Rxe3 33. Rxe3 Kf7 34. Rc3 g5 35. Rc7+ Kf6 36. Rxa7 g4 37. Ra8 g3 38. Re8 g2 39. Kf2 Rh1 0-1

[Event "WchT Students 17th final"]
[Site "Haifa"]
[Date "1970.08.18"]
[Round "10"]
[White "Zotos, Loukas"]
[Black "Ivarsson, Jonny"]
[Result "0-1"]
[ECO "C84"]
[PlyCount "45"]
[EventDate "1970.08.04"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Greece"]
[BlackTeam "Sweden"]
[WhiteTeamCountry "GRE"]
[BlackTeamCountry "SWE"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d4 exd4 7. Re1 b5 8. e5 Nxe5 9. Nxe5 bxa4 10. Qxd4 0-0 11. Qxa4 Rb8 12. a3 Rb6 13. c4 Bb7 14. Nc3 Re6 15. Bd2 Bd6 16. f4 Bc5+ 17. Kh1 Qa8 18. Rg1 Bxg1 19. Rxg1 d6 20. Nd3 Rfe8 21. Qd1 Ne4 22. f5 Rf6 23. Bf4 0-1

[Event "WchT Students 17th final"]
[Site "Haifa"]
[Date "1970.08.17"]
[Round "9"]
[White "Ivarsson, Jonny"]
[Black "Heikkila, Heikki"]
[Result "1-0"]
[ECO "B09"]
[PlyCount "57"]
[EventDate "1970.08.04"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Sweden"]
[BlackTeam "Finland"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "FIN"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. Bd3 Nc6 7. e5 dxe5 8. fxe5 Ng4 9. Be4 f6 10. exf6 exf6 11. 0-0 Nh6 12. h3 Nf7 13. Bf4 Nd6 14. d5 Ne7 15. Bd3 Re8 16. Qd2 a6 17. a4 Bd7 18. Kh1 Qc8 19. Rae1 Bf5 20. Nd4 Bxd3 21. Qxd3 Qd7 22. Re6 Ndf5 23. Rfe1 Rad8 24. Nxf5 Nxf5 25. Rxe8+ Rxe8 26. Rxe8+ Qxe8 27. Bxc7 Qe1+ 28. Kh2 Ne3 29. d6 1-0

[Event "WchT Students 17th final"]
[Site "Haifa"]
[Date "1970.08.16"]
[Round "8"]
[White "Ivarsson, Jonny"]
[Black "Angantysson, Haukur"]
[Result "0-1"]
[ECO "B78"]
[PlyCount "70"]
[EventDate "1970.08.04"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Sweden"]
[BlackTeam "Iceland"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "ISL"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Bc4 0-0 8. Bb3 d6 9. f3 Bd7 10. Qd2 Rc8 11. h4 Ne5 12. h5 Nxh5 13. 0-0-0 Nc4 14. Bxc4 Rxc4 15. g4 Nf6 16. Kb1 Nxg4 17. fxg4 Bxg4 18. Rdg1 Qd7 19. Qh2 h5 20. Rxg4 Qxg4 21. Rg1 Qd7 22. Nf5 Rxc3 23. bxc3 Rc8 24. Bh6 Bxc3 25. Qxh5 Qb5+ 26. Kc1 Qb2+ 27. Kd1 Bf6 28. Rxg6+ fxg6 29. Qxg6+ Kh8 30. Bg7+ Bxg7 31. Qh5+ Kg8 32. Nxe7+ Kf8 33. Nxc8 Qd4+ 34. Kc1 Qa1+ 35. Kd2 Qc3+ 0-1

[Event "WchT Students 17th final"]
[Site "Haifa"]
[Date "1970.08.11"]
[Round "6"]
[White "Ivarsson, Jonny"]
[Black "Kusky, Abraham"]
[Result "1-0"]
[ECO "C94"]
[PlyCount "108"]
[EventDate "1970.08.04"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Sweden"]
[BlackTeam "Israel"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "ISR"]

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. h3 Nb8 10. d3 h6 11. Nbd2 Re8 12. Nf1 Bf8 13. Ng3 g6 14. Bd2 Be6 15. a4 Nbd7 16. d4 Nb6 17. Bxe6 Rxe6 18. d5 Re8 19. b3 bxa4 20. bxa4 Qd7 21. Qb3 Rab8 22. Qa2 c6 23. a5 Nc8 24. c4 cxd5 25. cxd5 Na7 26. Be3 Nb5 27. Nd2 Nc3 28. Qa3 Rbc8 29. Rec1 Nb5 30. Qd3 Rxc1+ 31. Rxc1 Rc8 32. Nc4 Qb7 33. Qd2 Kh7 34. Nb6 Rxc1+ 35. Qxc1 Na7 36. Qc4 Be7 37. Ne2 Ne8 38. Nc3 Nc7 39. Na2 Ncb5 40. Nb4 Bd8 41. Nc6 Bc7 42. Qc1 Nd4 43. Nxd4 exd4 44. Bxd4 Bd8 45. e5 Nb5 46. Ba1 dxe5 47. Bxe5 f6 48. Bf4 g5 49. Be3 Qc7 50. Qb1+ Kg7 51. Qf5 Be7 52. Qe6 Qd6 53. Qc8 Kg6 54. Qg8+ Kf5 1-0

[Event "WchT Students 17th final"]
[Site "Haifa"]
[Date "1970.08.10"]
[Round "4"]
[White "Freise, Helmut"]
[Black "Ivarsson, Jonny"]
[Result "1/2-1/2"]
[ECO "E75"]
[PlyCount "84"]
[EventDate "1970.08.04"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "German Fed Rep"]
[BlackTeam "Sweden"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "SWE"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 c5 7. d5 e6 8. Qd2 exd5 9. exd5 Re8 10. Nf3 Bg4 11. 0-0 a6 12. h3 Bxf3 13. Bxf3 Nbd7 14. Be2 Qa5 15. Qf4 Re5 16. Bd3 Rae8 17. Qd2 R5e7 18. f4 h6 19. Bh4 Qb4 20. Rae1 Rxe1 21. Rxe1 Rxe1+ 22. Bxe1 Qb6 23. b3 Qd8 24. g4 Nh7 25. Ne4 Qe7 26. Bg3 Bd4+ 27. Kg2 Ndf6 28. Nxf6+ Nxf6 29. Kf3 Nd7 30. Qe2 Qxe2+ 31. Kxe2 Kg7 32. Kf3 a5 33. h4 h5 34. g5 f5 35. gxf6+ Kxf6 36. f5 Ne5+ 37. Bxe5+ Bxe5 38. fxg6 Kg7 39. Bc2 Bf6 40. Kf4 Bxh4 41. Kf5 Bg3 42. Ke6 h4 1/2-1/2

[Event "WchT Students 17th final"]
[Site "Haifa"]
[Date "1970.08.05"]
[Round "2"]
[White "Ivarsson, Jonny"]
[Black "Yoffie, Marc"]
[Result "0-1"]
[ECO "C14"]
[PlyCount "84"]
[EventDate "1970.08.04"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Sweden"]
[BlackTeam "United States of America"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "USA"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 0-0 8. Nf3 c5 9. Bd3 f6 10. exf6 Qxf6 11. 0-0 Qxf4 12. Qe2 Nf6 13. dxc5 Nc6 14. Rae1 Bd7 15. a3 Nd4 16. Nxd4 Qxd4+ 17. Qf2 Qxf2+ 18. Rxf2 Rfc8 19. b4 b6 20. Ba6 Rc7 21. Bb5 Bc8 22. Na4 Ne4 23. cxb6 axb6 24. Rf3 Rb8 25. c3 Bd7 26. Bxd7 Rxd7 27. c4 Nd2 28. Rfe3 Ra7 29. Nb2 dxc4 30. Rd1 Rd8 31. b5 Rc7 32. Rc1 Rc5 33. a4 e5 34. Rec3 Rd4 35. g3 Kf7 36. Re3 Ke6 37. Nd1 Nb3 38. Rb1 Rxd1+ 39. Rxd1 c3 40. Rde1 Nd4 41. Kf2 c2 42. Rc1 Kd5 0-1

[Event "WchT Students 17th final"]
[Site "Haifa"]
[Date "1970.08.04"]
[Round "1"]
[White "Mikenda, Werner"]
[Black "Ivarsson, Jonny"]
[Result "0-1"]
[ECO "A72"]
[PlyCount "124"]
[EventDate "1970.08.04"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "ISR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Austria"]
[BlackTeam "Sweden"]
[WhiteTeamCountry "AUT"]
[BlackTeamCountry "SWE"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 c5 7. d5 e6 8. Nf3 exd5 9. cxd5 h6 10. Bh4 b5 11. Nd2 b4 12. Na4 g5 13. Bg3 Re8 14. Qc2 Bd7 15. Rd1 Bxa4 16. Qxa4 Nxe4 17. Nxe4 Rxe4 18. Kf1 Nd7 19. Bf3 Rd4 20. h4 Nb6 21. Qc6 Rc8 22. Qxd6 Rxd1+ 23. Bxd1 Qxd6 24. Bxd6 Nxd5 25. Bf3 Nb6 26. hxg5 Bxb2 27. Rxh6 Bg7 28. Rh4 Bd4 29. Be4 Nc4 30. Bh7+ Kg7 31. Be7 Rc6 32. Bf5 Nd6 33. Bc2 Nc8 34. Bd8 Rd6 35. Bc7 Rd7 36. Bb8 Nb6 37. f4 Rb7 38. Rh7+ Kg8 39. Be5 Bxe5 40. fxe5 Nc4 41. Ke2 Nxe5 42. g6 Re7 43. gxf7+ Nxf7+ 44. Kd2 c4 45. g4 Re5 46. Rh5 Ng5 47. Kc1 a5 48. Rh6 Ne6 49. Rh5 Ng5 50. Rh6 Nf3 51. Rh5 Kg7 52. Rxe5 Nxe5 53. Bd1 Kf6 54. Kd2 Kg5 55. Ke3 Nxg4+ 56. Kd4 c3 57. a3 Kf4 58. axb4 axb4 59. Bb3 Ne5 60. Kc5 Nd3+ 61. Kc4 Ke3 62. Bc2 Kd2 0-1

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "6"]
[White "Andersson, Bengt"]
[Black "Ivarsson, Jonny"]
[Result "0-1"]
[ECO "C93"]
[PlyCount "80"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[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. h3 h6 10. d4 Re8 11. a4 Bd7 12. Nbd2 Bf8 13. Bc2 g6 14. Nf1 Bg7 15. d5 Ne7 16. Ng3 c6 17. axb5 cxb5 18. Be3 Nc8 19. b3 Nb6 20. Qc1 Kh7 21. Qa3 Qc7 22. Qa5 Reb8 23. Ra2 Be8 24. Rea1 Nfd7 25. Nd2 Bf6 26. c4 b4 27. Ra4 Nc5 28. Rxb4 Bd8 29. Rb1 Qe7 30. Ndf1 Nxd5 31. Rxb8 Bxa5 32. Rxa8 Nc3 33. Ra1 Bc6 34. Rc8 Bc7 35. f3 Bb7 36. Rxc7 Qxc7 37. Bd2 Qb6 38. Be3 Qb4 39. Nd2 a5 40. Kh2 a4 0-1

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "2"]
[White "Brostrom, Goran"]
[Black "Ivarsson, Jonny"]
[Result "1/2-1/2"]
[ECO "E61"]
[PlyCount "99"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 0-0 5. Bg5 h6 6. Bh4 c5 7. e3 d6 8. h3 Qb6 9. Qd2 g5 10. Bg3 Bf5 11. Be2 Ne4 12. Nxe4 Bxe4 13. Rd1 e5 14. dxc5 dxc5 15. 0-0 Nc6 16. h4 g4 17. Nh2 h5 18. f3 Rad8 19. Qc1 gxf3 20. Nxf3 Bg6 21. b3 e4 22. Ng5 Ne5 23. Bxe5 Bxe5 24. Nh3 Bg3 25. Nf4 Bxh4 26. Bxh5 Bxh5 27. Nxh5 Qh6 28. Rf5 b6 29. Rdf1 Rd3 30. R1f4 Rfd8 31. Qb2 Rd1+ 32. Kh2 Bg5 33. Qe2 f6 34. Qg4 Kh8 35. Rf1 Rxf1 36. Rxf1 Rg8 37. Qh3 Bxe3 38. Nxf6 Qxh3+ 39. Kxh3 Rf8 40. Rf5 Bd4 41. Rh5+ Kg7 42. Nxe4 Rf4 43. Rh4 Rf1 44. Rg4+ Kh6 45. Ng3 Rf2 46. Re4 Rxa2 47. Nf5+ Kh7 48. Nxd4 cxd4 49. Rxd4 Ra3 50. Rd7+ 1/2-1/2

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "14"]
[White "Ivarsson, Jonny"]
[Black "Berglund, Martin"]
[Result "1-0"]
[ECO "B98"]
[PlyCount "81"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 h6 9. Bh4 Qc7 10. 0-0-0 Nbd7 11. Bf2 b5 12. a3 Bb7 13. Bd3 g5 14. g3 Rc8 15. Kb1 Nc5 16. Rhe1 Nxd3 17. Rxd3 Rg8 18. Qe2 Kf8 19. fxg5 hxg5 20. g4 Nd7 21. Bg3 Ne5 22. Rf1 Ke8 23. Bxe5 dxe5 24. Qf3 Rf8 25. Nde2 Qc6 26. Ng3 a5 27. Nh5 f6 28. h4 b4 29. hxg5 Ba6 30. Ng7+ Kf7 31. gxf6 Bxd3 32. fxe7+ Kxe7 33. Nf5+ exf5 34. Nd5+ Ke8 35. Qxd3 bxa3 36. gxf5 a2+ 37. Ka1 Qxc2 38. Qh3 Qc6 39. f6 Kd8 40. Ne7 Qb7 41. Rd1+ 1-0

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "13"]
[White "Ivarsson, Jonny"]
[Black "Ek, Hans"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "69"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. 0-0 0-0 8. c4 Nc6 9. Re1 Nf6 10. cxd5 Nb4 11. Nc3 Bg4 12. Bb1 Re8 13. Bg5 Nbxd5 14. Nxd5 Nxd5 15. Qd3 g6 16. Bd2 Bb4 17. Rxe8+ Qxe8 18. Ne5 Bxd2 19. Qxd2 Be6 20. Be4 f6 21. Ng4 Qd8 22. Bxd5 Bxd5 23. Re1 f5 24. Re8+ Qxe8 25. Nf6+ Kg7 26. Nxe8+ Rxe8 27. f3 c6 28. Qa5 Re2 29. Qc7+ Kh6 30. Qxb7 Rc2 31. Qb8 Bxa2 32. Qf8+ Kg5 33. h4+ Kh5 34. Qe7 h6 35. g4+ 1-0

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "1"]
[White "Ivarsson, Jonny"]
[Black "Ekenberg, Bengt"]
[Result "0-1"]
[ECO "C14"]
[PlyCount "44"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 Bxg5 7. hxg5 Qxg5 8. Nh3 Qe7 9. Qg4 g6 10. 0-0-0 Nc6 11. Nf4 Nb6 12. Bd3 Bd7 13. Rh6 0-0-0 14. Rdh1 Qb4 15. Nfe2 Nxe5 16. Qf4 Nec4 17. Nd1 f5 18. Rxh7 Rxh7 19. Rxh7 Rg8 20. Qh6 c6 21. b3 g5 22. Nec3 Qa3+ 0-1

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "3"]
[White "Ivarsson, Jonny"]
[Black "Hjorth, Sune"]
[Result "0-1"]
[ECO "B77"]
[PlyCount "46"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 d6 7. Qd2 Nf6 8. f3 0-0 9. Bc4 Na5 10. Bb3 a6 11. h4 Nxb3 12. cxb3 b5 13. Bh6 Bb7 14. h5 e5 15. Nde2 Bxh6 16. Qxh6 b4 17. Nd5 Bxd5 18. exd5 Rc8 19. Ng3 Rc2 20. 0-0 Nxd5 21. Rac1 Rxb2 22. Rc4 Nf4 23. Rfc1 Rxg2+ 0-1

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "11"]
[White "Ivarsson, Jonny"]
[Black "Jansson, Borje"]
[Result "0-1"]
[ECO "B09"]
[PlyCount "58"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. Bd3 Nc6 7. e5 dxe5 8. fxe5 Ng4 9. Be4 f6 10. exf6 exf6 11. 0-0 Ne7 12. h3 Nh6 13. Bf4 Nhf5 14. Nb5 c6 15. Nc7 g5 16. Bh2 Ne3 17. Qd3 Nxf1 18. Bxh7+ Kh8 19. Rxf1 Rb8 20. d5 cxd5 21. Kh1 b5 22. Nd4 Rb6 23. Nf5 Rf7 24. Re1 Bf8 25. Bg6 Nxg6 26. Nh6 Kg7 27. Nxf7 Kxf7 28. Nxd5 Rc6 29. Qxb5 Rc5 0-1

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "9"]
[White "Ivarsson, Jonny"]
[Black "Johansson, Martin Sr"]
[Result "0-1"]
[ECO "C83"]
[PlyCount "62"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[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. c3 Nc5 10. Bc2 Bg4 11. a4 b4 12. Nbd2 Be7 13. Qe1 Ne6 14. a5 0-0 15. c4 Ncd4 16. Nxd4 Nxd4 17. Bd3 dxc4 18. Be4 Be2 19. Bxa8 Qxa8 20. f4 Bc5 21. Kh1 Bd3 22. Qg3 Bxf1 23. Nxf1 Qe4 24. Qe3 Qxe3 25. Bxe3 Nc2 26. Bxc5 Nxa1 27. Bxb4 Rd8 28. g3 Nc2 29. Bc3 Rd3 30. Kg2 Na3 31. Nd2 Nb5 0-1

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "7"]
[White "Ivarsson, Jonny"]
[Black "Ljungqvist, Lennart"]
[Result "1/2-1/2"]
[ECO "C13"]
[PlyCount "35"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Nbd7 6. Nf3 Be7 7. Nxf6+ Bxf6 8. Qd2 c6 9. Bd3 Bxg5 10. Nxg5 Nf6 11. c3 b6 12. Qf4 Bb7 13. 0-0 Qb8 14. Qxb8+ Rxb8 15. Ne4 Nxe4 16. Bxe4 c5 17. Bxb7 Rxb7 18. Rad1 1/2-1/2

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "5"]
[White "Ivarsson, Jonny"]
[Black "Olsson, Ake"]
[Result "0-1"]
[ECO "C67"]
[PlyCount "78"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[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 Be6 10. g4 Ne7 11. Ng5 Bc4 12. Rd1+ Ke8 13. b3 Bd5 14. Nxd5 cxd5 15. Bf4 Ng6 16. Bg3 Be7 17. Nf3 c6 18. Nd4 h5 19. h3 hxg4 20. hxg4 Nf8 21. f4 Bc5 22. c3 Ne6 23. Kg2 g6 24. Nxe6 fxe6 25. Rh1 Kf7 26. Bh4 Be7 27. Bxe7 Kxe7 28. Rxh8 Rxh8 29. Rh1 Rxh1 30. Kxh1 c5 31. Kg2 b5 32. a3 a5 33. Kf3 g5 34. f5 exf5 35. gxf5 c4 36. b4 axb4 37. axb4 d4 38. cxd4 c3 39. Ke3 g4 0-1

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "8"]
[White "Kinnmark, Ove"]
[Black "Ivarsson, Jonny"]
[Result "1-0"]
[ECO "C93"]
[PlyCount "107"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[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. h3 h6 10. d4 Re8 11. Nbd2 Bf8 12. Nf1 Bb7 13. Ng3 g6 14. a3 Bg7 15. Bc2 Na5 16. dxe5 dxe5 17. Qe2 Nc4 18. a4 c5 19. b3 Nd6 20. Bb2 c4 21. b4 bxa4 22. Rxa4 a5 23. bxa5 Rxa5 24. Rd1 Bf8 25. Ba3 Rxa4 26. Bxa4 Qa5 27. Bxd6 Qxa4 28. Bxf8 Kxf8 29. Rd6 Kg7 30. Qe3 Qa8 31. Nd2 Rc8 32. Kh2 Qa3 33. Qb6 Ne8 34. Rd7 Bc6 35. Ra7 Qxc3 36. Nf3 Qb3 37. Qc5 Qb8 38. Nxe5 Bb7 39. Qd4 Kg8 40. Nxf7 Kxf7 41. Qd7+ Kf8 42. Rxb7 Rc7 43. Qxc7 Qxc7 44. Rxc7 Nxc7 45. Ne2 Nb5 46. Kg3 Ke7 47. Kf3 Kf6 48. Ke3 g5 49. Nd4 Nd6 50. g3 h5 51. f4 Kg6 52. e5 Nf5+ 53. Nxf5 Kxf5 54. h4 1-0

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "15"]
[White "Liljedahl, Lennart"]
[Black "Ivarsson, Jonny"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "55"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 Nf6 7. Nf3 0-0 8. h3 Rb8 9. 0-0 b5 10. g4 b4 11. Ne2 a5 12. Ng3 Ba6 13. Rf2 Ne8 14. Rb1 Nc7 15. Be3 Nb5 16. h4 a4 17. Bd2 a3 18. b3 Ncd4 19. f5 Nxf3+ 20. Rxf3 Nd4 21. Rf1 Be5 22. Ne2 e6 23. Bg5 Bf6 24. Bh6 Nxe2+ 25. Qxe2 Bd4+ 26. Be3 Bxe3+ 27. Qxe3 Qxh4 28. f6 1/2-1/2

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "4"]
[White "Malmdin, Nils Ake"]
[Black "Ivarsson, Jonny"]
[Result "1-0"]
[ECO "C85"]
[PlyCount "39"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Bxc6 dxc6 7. Qe1 Be6 8. b3 Bg4 9. Nxe5 Qd4 10. Nc4 Be6 11. Bb2 Qxe4 12. Qxe4 Nxe4 13. Bxg7 Rg8 14. Be5 0-0-0 15. d3 Rg5 16. Re1 Bxc4 17. Rxe4 Bxd3 18. cxd3 Rxe5 19. Rxe5 Bf6 20. f4 1-0

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "12"]
[White "Nilsson, Zandor"]
[Black "Ivarsson, Jonny"]
[Result "1/2-1/2"]
[ECO "E61"]
[PlyCount "108"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. g3 0-0 5. Bg2 d6 6. e3 e5 7. Nge2 exd4 8. exd4 Nc6 9. 0-0 Bf5 10. h3 h5 11. a3 Qd7 12. Kh2 Na5 13. b3 c5 14. Be3 Rfe8 15. Ra2 Qc7 16. Nb5 Qb6 17. Nec3 a6 18. dxc5 dxc5 19. Na4 Qd8 20. Rd2 axb5 21. cxb5 Qe7 22. Bxc5 Qe6 23. Nb6 Rab8 24. Nd5 Nxd5 25. Bxd5 Qc8 26. Bb6 Bc3 27. Bxa5 Bxa5 28. b4 Bb6 29. Qb3 Be6 30. Bxe6 Qxe6 31. Qxe6 Rxe6 32. a4 Bd8 33. a5 Re5 34. b6 Be7 35. Rb1 Rb5 36. Rd7 Rxb4 37. Rc1 Bf8 38. Rcc7 Rb5 39. Rxf7 Rxa5 40. Rf6 g5 41. Kg2 Re5 42. Rg6+ Kh8 43. Rf6 Rd5 44. Rff7 Kg8 45. Rxb7 Rxb7 46. Rxb7 Rb5 47. f4 g4 48. hxg4 hxg4 49. f5 Rxf5 50. Rd7 Bc5 51. b7 Rf2+ 52. Kh1 Ba7 53. Rd4 Rb2 54. Rxg4+ Kf8 1/2-1/2

[Event "SWE-ch"]
[Site "Nassjo"]
[Date "1970.??.??"]
[Round "10"]
[White "Skold, Kristian"]
[Black "Ivarsson, Jonny"]
[Result "1/2-1/2"]
[ECO "B85"]
[PlyCount "120"]
[EventDate "1970.??.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "SWE"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. Be2 Nc6 5. d4 cxd4 6. Nxd4 Qc7 7. 0-0 Nf6 8. Kh1 Be7 9. f4 d6 10. Be3 0-0 11. Qe1 Nxd4 12. Bxd4 b5 13. e5 dxe5 14. Bxe5 Qb6 15. Qh4 Bb7 16. Bd3 h6 17. Qg3 Kh8 18. f5 Rg8 19. Qh3 exf5 20. Qxf5 Qe6 21. Qxe6 fxe6 22. Rae1 Rad8 23. Ne2 Nd5 24. Nd4 Nb4 25. Bg6 Bh4 26. Rd1 Rgf8 27. c3 Nxa2 28. Bf7 b4 29. c4 b3 30. Bxe6 Rfe8 31. Bc7 Rxd4 32. Rxd4 Bf6 33. Rxf6 gxf6 34. Rd8 Rxd8 35. Bxd8 Kg7 36. c5 Nc1 37. Bc4 Be4 38. Ba5 Nd3 39. c6 Nxb2 40. c7 Bf5 41. Bxb3 Bc8 42. h3 Nd3 43. Kh2 Nc5 44. Bc4 Ne6 45. Kg3 Nd4 46. Bd5 Nb5 47. Kf4 Kf8 48. Bf3 Nd4 49. Bd5 Ke7 50. Ke4 Nb5 51. Bc6 Kd6 52. Bxb5 f5+ 53. Kd4 axb5 54. Bd2 Kxc7 55. Bxh6 Kd6 56. h4 Ke6 57. Bd2 Bb7 58. g3 Bf3 59. Ke3 Bh5 60. Kf4 Kf6 1/2-1/2

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "14"]
[White "Bjerre, Troels"]
[Black "Ivarsson, Jonny"]
[Result "1-0"]
[ECO "E94"]
[PlyCount "94"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. d5 Nbd7 8. 0-0 Nc5 9. Qc2 a5 10. Bg5 h6 11. Be3 b6 12. Nd2 Ng4 13. Bxg4 Bxg4 14. a3 Bc8 15. b4 Nd7 16. f3 f5 17. Na4 f4 18. Bf2 g5 19. c5 bxc5 20. bxc5 h5 21. Nc4 Rf6 22. cxd6 cxd6 23. Ncb6 Rb8 24. Rfc1 Nc5 25. Nxc8 Rxc8 26. Nxc5 dxc5 27. Bxc5 Bf8 28. d6 Bxd6 29. Qb3+ Kg7 30. Bxd6 Rxc1+ 31. Rxc1 Rxd6 32. h3 Kf6 33. Kh2 g4 34. fxg4 hxg4 35. hxg4 Kg5 36. Rc3 Rb6 37. Qa2 Qd4 38. Rh3 Qxe4 39. Qg8+ Qg6 40. Qh8 Kxg4 41. Qxe5 a4 42. Rh8 Rb7 43. Qe2+ Kg5 44. Rh3 Rb3 45. Qe7+ Kg4 46. Rh4+ Kf5 47. Qc5+ Ke4 1-0

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "5"]
[White "Corden, Martyn J"]
[Black "Ivarsson, Jonny"]
[Result "1/2-1/2"]
[ECO "B48"]
[PlyCount "114"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nc6 7. Be3 Nf6 8. 0-0 Bd6 9. Nxc6 dxc6 10. f4 e5 11. f5 b5 12. Qf3 Bb7 13. Qg3 h6 14. Qxg7 Ke7 15. Qg3 Rag8 16. Qh4 Rg4 17. Qf2 Rhg8 18. g3 c5 19. Rad1 c4 20. Be2 Rxe4 21. Rxd6 Rxe3 22. Qxe3 Qxd6 23. Rd1 Qc7 24. Bf3 Bxf3 25. Qxf3 Qa7+ 26. Kg2 Qa8 27. Nd5+ Nxd5 28. Rxd5 f6 29. Qa3+ Kf7 30. Qd6 Re8 31. Kf2 Re7 32. Ke2 Qg8 33. Qxa6 Qg4+ 34. Kd2 e4 35. Ke1 e3 36. Rd7 Qxf5 37. Rxe7+ Kxe7 38. Qa7+ Kf8 39. Qxe3 Qxc2 40. Qxh6+ Kf7 41. Qh5+ Kg7 42. Qxb5 Qxh2 43. Qd7+ Kf8 44. Qd6+ Kg7 45. Qe7+ Kg6 46. Qe8+ Kg7 47. Qd7+ Kf8 48. Qc8+ Kg7 49. Qb7+ Kf8 50. Qb8+ Kg7 51. a3 Qg2 52. Qa7+ Kg6 53. Qf2 Qh1+ 54. Kd2 Qd5+ 55. Kc3 Qd3+ 56. Kb4 Qb3+ 57. Kc5 c3 1/2-1/2

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "9"]
[White "Eppinger, Georg"]
[Black "Ivarsson, Jonny"]
[Result "0-1"]
[ECO "B82"]
[PlyCount "58"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. a3 Nc6 7. Be3 Nf6 8. f4 d6 9. Qf3 Be7 10. Bd3 Nxd4 11. Bxd4 b5 12. e5 Bb7 13. Qg3 dxe5 14. fxe5 Nh5 15. Qg4 g6 16. 0-0 0-0 17. Rae1 Rad8 18. Kh1 Rd7 19. Be3 Bxa3 20. Bh6 Rfd8 21. bxa3 Qxc3 22. Re3 Rd4 23. Qg5 Qd2 24. Be2 Nf4 25. Rd3 Rxd3 26. cxd3 Rd4 27. Qf6 Bxg2+ 28. Kg1 Qe3+ 29. Rf2 Nxe2+ 0-1

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "2"]
[White "Ivarsson, Jonny"]
[Black "Bastian, Herbert"]
[Result "1/2-1/2"]
[ECO "B09"]
[PlyCount "58"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 0-0 6. Bd3 Nc6 7. e5 dxe5 8. fxe5 Ng4 9. Be4 f6 10. h3 Nh6 11. exf6 exf6 12. 0-0 Ne7 13. Bf4 g5 14. Bh2 f5 15. Bd3 g4 16. Bc4+ Kh8 17. Ne5 gxh3 18. gxh3 Nc6 19. Nxc6 bxc6 20. Be5 Bxe5 21. dxe5 Qh4 22. Qe2 Rg8+ 23. Bxg8 Ba6 24. Qf3 Rxg8+ 25. Kh2 Ng4+ 26. Kh1 Bxf1 27. Rxf1 Nxe5 28. Qxf5 Qg5 29. Qf6+ Rg7 1/2-1/2

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "15"]
[White "Ivarsson, Jonny"]
[Black "Haas, Ulrich"]
[Result "1/2-1/2"]
[ECO "C88"]
[PlyCount "31"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. a4 d5 9. exd5 Nd4 10. Nxd4 exd4 11. d3 Bb7 12. axb5 axb5 13. Rxa8 Bxa8 14. Bg5 Nxd5 15. Bxe7 Nxe7 16. Nd2 1/2-1/2

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "8"]
[White "Ivarsson, Jonny"]
[Black "Neckar, Lubomir"]
[Result "1-0"]
[ECO "B04"]
[PlyCount "81"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. exd6 cxd6 6. c4 Nb6 7. Be2 Bg7 8. Nc3 0-0 9. 0-0 Bg4 10. Be3 Nc6 11. b3 d5 12. c5 Nc8 13. b4 a6 14. a4 b6 15. b5 axb5 16. axb5 Rxa1 17. Qxa1 Bxf3 18. bxc6 Bxe2 19. Nxe2 bxc5 20. Rb1 Qd6 21. Qa6 cxd4 22. Nxd4 Bxd4 23. Bxd4 e5 24. Be3 d4 25. Bh6 Re8 26. Rb7 Qe6 27. Rb8 d3 28. h3 g5 29. Bxg5 Kg7 30. Qxd3 Qxc6 31. Rb4 Qg6 32. Qe3 h5 33. Bh4 Ne7 34. Qxe5+ f6 35. Qc7 Qf7 36. Rb7 Kf8 37. Bg3 Rc8 38. Qd7 Qe8 39. Bd6 Qxd7 40. Rxd7 Re8 41. Kf1 1-0

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "11"]
[White "Ivarsson, Jonny"]
[Black "Segal, Alexandru Sorin"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "58"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. c4 Be7 6. d4 0-0 7. Bd3 d5 8. 0-0 Nf6 9. Nc3 dxc4 10. Bxc4 a6 11. a4 Nc6 12. Re1 Bg4 13. Bg5 h6 14. Bh4 Bxf3 15. Qxf3 Qxd4 16. Ne4 Ne5 17. Qf4 Ng6 18. Bxf6 Qxc4 19. Qg4 h5 20. Qxh5 Bxf6 21. Re3 Rfd8 22. Nxf6+ gxf6 23. Rh3 Rd5 24. Qh7+ Kf8 25. Qh6+ Ke7 26. Qg7 Rad8 27. Re3+ Ne5 28. Rae1 R8d6 29. g3 Rd1 0-1

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "4"]
[White "Ivarsson, Jonny"]
[Black "Ungnad, Rainer"]
[Result "0-1"]
[ECO "C88"]
[PlyCount "66"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. a4 Rb8 9. axb5 axb5 10. c3 d6 11. d4 exd4 12. cxd4 Bg4 13. Be3 Nb4 14. Nc3 Nd7 15. Bf4 c5 16. dxc5 Nxc5 17. Ra7 Nbd3 18. Nd5 Bf6 19. Re3 Nxf4 20. Nxf4 Bxb2 21. Rxf7 Rxf7 22. Bxf7+ Kh8 23. Ne5 g5 24. Qxg4 Bxe5 25. Qh5 Ra8 26. g4 gxf4 27. Rh3 Ra1+ 28. Kg2 f3+ 29. Rxf3 Nxe4 30. Bg6 Ng5 31. h4 Rg1+ 32. Kxg1 Nxf3+ 33. Kg2 Nxh4+ 0-1

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "13"]
[White "Ivarsson, Jonny"]
[Black "Velickovic, Sasa"]
[Result "0-1"]
[ECO "B81"]
[PlyCount "56"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 a6 7. g5 Nfd7 8. Be3 b5 9. Qd2 Bb7 10. a3 Qc7 11. Bxb5 axb5 12. Ndxb5 Qc6 13. 0-0-0 Ra6 14. f4 Nc5 15. Bxc5 Qxc5 16. f5 Nd7 17. Rhf1 Be7 18. b4 Qc4 19. f6 gxf6 20. gxf6 Bf8 21. Qf4 h5 22. Kb2 Ne5 23. Rd4 Qc8 24. Kb3 Rc6 25. Rfd1 Qb8 26. Na4 Ba6 27. Nxd6+ Bxd6 28. Rxd6 Rxd6 0-1

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "6"]
[White "Ivarsson, Jonny"]
[Black "Westermeier, Arnulf"]
[Result "1/2-1/2"]
[ECO "B96"]
[PlyCount "45"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5 8. e5 dxe5 9. fxe5 Qc7 10. Qe2 Nfd7 11. 0-0-0 Bb7 12. Nf3 Nc6 13. Qf2 Rc8 14. Bd3 Bb4 15. Qg3 Bxc3 16. bxc3 Ncxe5 17. Nxe5 Qxe5 18. Bf4 Qxc3 19. Rhf1 b4 20. Kb1 Bd5 21. Bc1 Qe5 22. Bf4 Qc3 23. Bc1 1/2-1/2

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "3"]
[White "Narbel, Jean Claude"]
[Black "Ivarsson, Jonny"]
[Result "1/2-1/2"]
[ECO "A72"]
[PlyCount "95"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 0-0 6. Be2 c5 7. d5 e6 8. Nf3 exd5 9. cxd5 h6 10. Bh4 b5 11. Qc2 b4 12. Nd1 Re8 13. Nd2 Ba6 14. Bxa6 Nxa6 15. Ne3 Nc7 16. Qd3 Qd7 17. a4 Ng4 18. Nec4 f5 19. Bg3 fxe4 20. Qb3 e3 21. fxe3 Qf5 22. Nxd6 Qxd5 23. Qxd5+ Nxd5 24. Nxe8 Rxe8 25. 0-0-0 Ndxe3 26. Rde1 Rd8 27. Re2 c4 28. Rhe1 Bxb2+ 29. Kxb2 c3+ 30. Kc1 cxd2+ 31. Rxd2 Rc8+ 32. Kb1 Nc4 33. Rde2 Nf6 34. Be5 Nd5 35. Bd4 Rc6 36. g3 b3 37. Bb2 g5 38. Re6 Nd2+ 39. Ka1 Rc2 40. Rg6+ Kf8 41. Rd6 Nc4 42. Rd8+ Kf7 43. Rc1 Rxb2 44. Rxc4 Ra2+ 45. Kb1 Nb6 46. Rc7+ Ke6 47. Rd3 Nxa4 48. Rxb3 1/2-1/2

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "7"]
[White "Niess, Gert"]
[Black "Ivarsson, Jonny"]
[Result "1/2-1/2"]
[ECO "D79"]
[PlyCount "52"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d5 5. c4 c6 6. cxd5 cxd5 7. Nc3 0-0 8. 0-0 b6 9. Ne5 Bb7 10. Bf4 Nc6 11. Nxc6 Bxc6 12. Be5 Qd7 13. e3 Ne4 14. Nxe4 dxe4 15. Bxg7 Kxg7 16. Qd2 Rac8 17. Rfc1 Bd5 18. a3 Rxc1+ 19. Rxc1 Rc8 20. Rc2 Rxc2 21. Qxc2 Qc6 22. Qxc6 Bxc6 23. Kf1 f5 24. Ke1 Kf6 25. h4 h6 26. Bf1 Bd5 1/2-1/2

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "10"]
[White "Pollak, Georg"]
[Black "Ivarsson, Jonny"]
[Result "1/2-1/2"]
[ECO "D79"]
[PlyCount "24"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. cxd5 cxd5 6. Nf3 Bg7 7. 0-0 0-0 8. Nc3 Ne4 9. Ne5 Nxc3 10. bxc3 e6 11. e4 Qa5 12. Qb3 Nc6 1/2-1/2

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "1"]
[White "Tompa, Janos"]
[Black "Ivarsson, Jonny"]
[Result "1-0"]
[ECO "C84"]
[PlyCount "119"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. 0-0 Be7 7. Re1 0-0 8. e5 Nd5 9. Nxd4 Nxd4 10. Qxd4 Nb6 11. Bb3 d6 12. exd6 Bxd6 13. Bf4 Qh4 14. g3 Qg4 15. h3 Qg6 16. Bxd6 Qxd6 17. Qxd6 cxd6 18. Re7 Bd7 19. Nc3 Bc6 20. Rd1 Rae8 21. Rxe8 Rxe8 22. Kf1 Rd8 23. Rd4 d5 24. a4 a5 25. Nd1 Rd7 26. Ne3 Kf8 27. c3 f6 28. h4 g6 29. Rf4 Kg7 30. Rd4 Kf8 31. f3 Ke7 32. Ke2 f5 33. Bc2 Ke6 34. h5 Rf7 35. b3 g5 36. f4 g4 37. b4 Nxa4 38. Bxa4 Bxa4 39. Rxd5 axb4 40. Re5+ Kd6 41. cxb4 Bd7 42. Nc4+ Kc7 43. Rc5+ Kb8 44. Kd3 Be6 45. Ne3 Rf6 46. Kd4 Rh6 47. Nxf5 Rxh5 48. Ng7 Rxc5 49. Kxc5 Bf7 50. Kd6 h5 51. Nf5 Ka7 52. Ke7 Bb3 53. Kf6 Kb6 54. Kg5 Bf7 55. Nd4 Kc7 56. Kf6 Bd5 57. Ke7 Be4 58. f5 Bxf5 59. Nxf5 Kc6 60. Kf6 1-0

[Event "Bad Pyrmont"]
[Site "Bad Pyrmont"]
[Date "1969.??.??"]
[Round "12"]
[White "Vogel, Jaap"]
[Black "Ivarsson, Jonny"]
[Result "0-1"]
[ECO "A16"]
[PlyCount "126"]
[EventDate "1969.12.06"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. b4 c6 6. Bb2 d5 7. d3 dxc4 8. dxc4 Be6 9. c5 Nbd7 10. Qc2 Ne5 11. Rd1 Qc7 12. Nf3 Nc4 13. Bc1 a5 14. Nd4 axb4 15. Nxe6 fxe6 16. Ne4 Nxe4 17. Qxe4 Bc3+ 18. Kf1 Rad8 19. Rxd8 Qxd8 20. Bh3 Nd2+ 21. Bxd2 Qxd2 22. Bxe6+ Kg7 23. Kg2 Qd4 24. Qe3 Qxe3 25. fxe3 Bd2 26. Rf1 Rxf1 27. Kxf1 Bxe3 28. Bc8 b6 29. cxb6 Bxb6 30. e4 Kf6 31. Ke2 Ke5 32. Kd3 Bg1 33. h3 Bf2 34. Bb7 Bxg3 35. Bxc6 g5 36. Be8 Kf4 37. Bh5 Be1 38. Bg4 Kg3 39. Ke2 Bc3 40. Ke3 e5 41. Ke2 Bd4 42. Kf1 h5 43. Bxh5 Kxh3 44. Be8 g4 45. Bd7 Kg3 46. Bf5 Kf3 47. Bd7 g3 48. Bh3 Kxe4 49. Ke2 Bf2 50. Bg2+ Kd4 51. Kd2 Be3+ 52. Ke2 e4 53. Bh1 Bf4 54. Bg2 e3 55. Bf3 Kc3 56. Bd5 Kc2 57. Bb3+ Kb2 58. Bd5 g2 59. Bxg2 Kxa2 60. Kd3 b3 61. Bd5 Ka3 62. Bc4 b2 63. Kc2 e2 0-1

