| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 251. O Neikirch vs B Koch |
| ½-½ | 18 | 1954 | DDR v Bulgaria | D83 Grunfeld, Grunfeld Gambit |
| 252. B Koch vs O Neikirch |
| 1-0 | 32 | 1954 | DDR v Bulgaria | C64 Ruy Lopez, Classical |
| 253. B Koch vs R Elstner |
| ½-½ | 79 | 1955 | East German Championship | C73 Ruy Lopez, Modern Steinitz Defense |
| 254. R Fuchs vs B Koch |
| ½-½ | 26 | 1955 | East German Championship | D85 Grunfeld |
| 255. B Koch vs Uhlmann |
| ½-½ | 24 | 1955 | East German Championship | C05 French, Tarrasch |
| 256. J Eising vs B Koch |
| ½-½ | 34 | 1955 | East German Championship | A38 English, Symmetrical |
| 257. B Koch vs L Schindler |
| 1-0 | 20 | 1955 | East German Championship | B64 Sicilian, Richter-Rauzer Attack |
| 258. A Zirngibl vs B Koch |
| ½-½ | 53 | 1955 | East German Championship | A15 English |
| 259. B Koch vs K Krause |
| 1-0 | 70 | 1955 | East German Championship | A46 Queen's Pawn Game |
| 260. J Franz vs B Koch |
| 0-1 | 66 | 1955 | East German Championship | A05 Reti Opening |
| 261. B Koch vs H Hunte |
| 1-0 | 44 | 1955 | East German Championship | C24 Bishop's Opening |
| 262. B Koch vs A Straesser |
| 1-0 | 46 | 1955 | East German Championship | C05 French, Tarrasch |
| 263. B Dorawa vs B Koch |
| 1-0 | 45 | 1955 | East German Championship | A07 King's Indian Attack |
| 264. B Koch vs A Raths |
| ½-½ | 34 | 1955 | East German Championship | B72 Sicilian, Dragon |
| 265. R Schlieder vs B Koch |
| 0-1 | 48 | 1955 | East German Championship | E86 King's Indian, Samisch, Orthodox, 7.Nge2 c6 |
| 266. B Koch vs S Dittmann |
| 1-0 | 48 | 1955 | East German Championship | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 267. H Tiemann vs B Koch |
| 1-0 | 70 | 1955 | East German Championship | D74 Neo-Grunfeld, 6.cd Nxd5, 7.O-O |
| 268. B Koch vs M Kahn |
| 1-0 | 33 | 1955 | East German Championship | C02 French, Advance |
| 269. F Stahl vs B Koch |
| ½-½ | 24 | 1955 | East German Championship | A07 King's Indian Attack |
| 270. M Bely vs B Koch |
| 1-0 | 36 | 1955 | Erfurt | C05 French, Tarrasch |
| 271. B Koch vs Uhlmann |
 | 0-1 | 60 | 1955 | Erfurt | C02 French, Advance |
| 272. J Fichtl vs B Koch |
| 1-0 | 58 | 1955 | Erfurt | B80 Sicilian, Scheveningen |
| 273. R Dworzynski vs B Koch |
| ½-½ | 18 | 1955 | Erfurt | B80 Sicilian, Scheveningen |
| 274. B Koch vs O Troianescu |
| 0-1 | 77 | 1955 | Erfurt | B32 Sicilian |
| 275. S Dittmann vs B Koch |
| ½-½ | 24 | 1955 | Erfurt | E76 King's Indian, Four Pawns Attack |
Kibitzing
