| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 251. B Jansson vs D Hansson |
| 1-0 | 34 | 1977 | Swedish Championship | D91 Grunfeld, 5.Bg5 |
| 252. B Jansson vs K Kaiszauri |
| ½-½ | 52 | 1977 | Swedish Championship | E17 Queen's Indian |
| 253. B Jansson vs G Rorvall |
| 1-0 | 41 | 1977 | Swedish Championship | A14 English |
| 254. B Jansson vs H Schussler |
| ½-½ | 47 | 1977 | Swedish Championship | A04 Reti Opening |
| 255. B Jansson vs G Svensson |
| ½-½ | 48 | 1977 | Swedish Championship | A04 Reti Opening |
| 256. B Jansson vs T Wedberg |
| ½-½ | 40 | 1977 | Swedish Championship | A04 Reti Opening |
| 257. L Karlsson vs B Jansson |
| ½-½ | 42 | 1977 | Swedish Championship | A04 Reti Opening |
| 258. P Ostberg vs B Jansson |
| ½-½ | 30 | 1977 | Swedish Championship | B04 Alekhine's Defense, Modern |
| 259. N Tornblom vs B Jansson |
| 0-1 | 37 | 1977 | Swedish Championship | A00 Uncommon Opening |
| 260. Knaak vs B Jansson |
| ½-½ | 31 | 1978 | Telechess ol1 7778 | E31 Nimzo-Indian, Leningrad, Main line |
| 261. B Jansson vs A Ornstein |
| 1-0 | 24 | 1978 | Swedish Championship | A15 English |
| 262. B Jansson vs N Renman |
| ½-½ | 41 | 1978 | Swedish Championship | A35 English, Symmetrical |
| 263. C M Bjork vs B Jansson |
| 0-1 | 40 | 1978 | Swedish Championship | B05 Alekhine's Defense, Modern |
| 264. B Hammar vs B Jansson |
| ½-½ | 38 | 1978 | Swedish Championship | B05 Alekhine's Defense, Modern |
| 265. P Helmertz vs B Jansson |
| ½-½ | 7 | 1978 | Swedish Championship | A28 English |
| 266. B Jansson vs B Bengtsson |
| ½-½ | 36 | 1978 | Swedish Championship | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 267. B Jansson vs D Cramling |
| 1-0 | 41 | 1978 | Swedish Championship | B31 Sicilian, Rossolimo Variation |
| 268. B Jansson vs A Fridh |
| 0-1 | 36 | 1978 | Swedish Championship | D41 Queen's Gambit Declined, Semi-Tarrasch |
| 269. B Jansson vs U Korman |
| 1-0 | 62 | 1978 | Swedish Championship | A14 English |
| 270. B Jansson vs G Rorvall |
| ½-½ | 40 | 1978 | Swedish Championship | B08 Pirc, Classical |
| 271. B Jansson vs T Wedberg |
| ½-½ | 57 | 1978 | Swedish Championship | C64 Ruy Lopez, Classical |
| 272. L Karlsson vs B Jansson |
| ½-½ | 24 | 1978 | Swedish Championship | A07 King's Indian Attack |
| 273. C Niklasson vs B Jansson |
| 1-0 | 27 | 1978 | Swedish Championship | E28 Nimzo-Indian, Samisch Variation |
| 274. H Schussler vs B Jansson |
| 1-0 | 42 | 1978 | Swedish Championship | A28 English |
| 275. B Svensson vs B Jansson |
| 0-1 | 37 | 1978 | Swedish Championship | B09 Pirc, Austrian Attack |
Kibitzing
