| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. L Karlsson vs W Hug |
| 0-1 | 76 | 1979 | Lucerne Zonal qual-2 | A10 English |
| 52. L Karlsson vs H Olafsson |
 | 0-1 | 37 | 1979 | Lucerne Zonal qual-2 | A07 King's Indian Attack |
| 53. Y Gruenfeld vs L Karlsson |
| 1-0 | 32 | 1979 | Lucerne Zonal qual-2 | C03 French, Tarrasch |
| 54. L Karlsson vs T Wedberg |
| 0-1 | 32 | 1979 | Lucerne Zonal Final | A36 English |
| 55. L Karlsson vs G Sigurjonsson |
| 0-1 | 35 | 1979 | Lucerne Zonal Final | B80 Sicilian, Scheveningen |
| 56. L Karlsson vs Y Gruenfeld |
| ½-½ | 37 | 1979 | Lucerne Zonal Final | A05 Reti Opening |
| 57. L Karlsson vs S Ivarsson |
| ½-½ | 12 | 1979 | Swedish Championship | A36 English |
| 58. O Kinnmark vs L Karlsson |
| ½-½ | 11 | 1979 | Swedish Championship | B27 Sicilian |
| 59. P Ostberg vs L Karlsson |
| 1-0 | 40 | 1979 | Swedish Championship | B35 Sicilian, Accelerated Fianchetto, Modern Variation with Bc4 |
| 60. D Hansson vs L Karlsson |
| 0-1 | 38 | 1979 | Swedish Championship | C18 French, Winawer |
| 61. L Karlsson vs M Sjoberg |
| 1-0 | 39 | 1979 | Swedish Championship | A01 Nimzovich-Larsen Attack |
| 62. L Karlsson vs J Lind |
| ½-½ | 56 | 1979 | Swedish Championship | E64 King's Indian, Fianchetto, Yugoslav System |
| 63. N Renman vs L Karlsson |
| 0-1 | 29 | 1979 | Swedish Championship | E10 Queen's Pawn Game |
| 64. L Karlsson vs C M Bjork |
| 1-0 | 66 | 1979 | Swedish Championship | A07 King's Indian Attack |
| 65. L Karlsson vs C Bergstrom |
| ½-½ | 35 | 1979 | Swedish Championship | A06 Reti Opening |
| 66. L Schneider vs L Karlsson |
| 1-0 | 48 | 1979 | Swedish Championship | C05 French, Tarrasch |
| 67. L Karlsson vs T Wedberg |
| 1-0 | 46 | 1979 | Swedish Championship | B08 Pirc, Classical |
| 68. C Gruvaeus vs L Karlsson |
| 0-1 | 41 | 1979 | Swedish Championship | A62 Benoni, Fianchetto Variation |
| 69. B Svensson vs L Karlsson |
| ½-½ | 55 | 1979 | Swedish Championship | A71 Benoni, Classical, 8.Bg5 |
| 70. L Karlsson vs Keene |
| ½-½ | 45 | 1979 | Gausdal | A04 Reti Opening |
| 71. A Ornstein vs L Karlsson |
| 1-0 | 48 | 1979 | Malmo Schacknytt | A15 English |
| 72. Seirawan vs L Karlsson |
| ½-½ | 49 | 1979 | Schacknytts Jubileumsturnering | A30 English, Symmetrical |
| 73. L Karlsson vs W Schmidt |
| ½-½ | 47 | 1979 | Schacknytts Jubileumsturnering | A07 King's Indian Attack |
| 74. Miles vs L Karlsson |
| 1-0 | 44 | 1980 | Gausdal Int | E12 Queen's Indian |
| 75. L Karlsson vs O Sande |
| 1-0 | 52 | 1980 | Gausdal Int | A01 Nimzovich-Larsen Attack |
Kibitzing
