| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 276. A Kolarov vs B Koch |
| 1-0 | 31 | 1955 | Erfurt | D94 Grunfeld |
| 277. B Koch vs J Franz |
| 0-1 | 32 | 1955 | Erfurt | C02 French, Advance |
| 278. N Padevsky vs B Koch |
| 0-1 | 44 | 1955 | Erfurt | B86 Sicilian, Fischer-Sozin Attack |
| 279. B Koch vs P Dely |
| ½-½ | 25 | 1955 | Erfurt | B16 Caro-Kann, Bronstein-Larsen Variation |
| 280. R Fuchs vs B Koch |
| ½-½ | 24 | 1955 | Erfurt | D94 Grunfeld |
| 281. B Koch vs I Balanel |
| 0-1 | 41 | 1955 | Erfurt | C30 King's Gambit Declined |
| 282. Ragozin vs B Koch |
 | 1-0 | 46 | 1956 | 2nd Correspondence World Championship | A34 English, Symmetrical |
| 283. L Schmid vs B Koch |
 | 1-0 | 35 | 1956 | 2nd Correspondence World Championship | C97 Ruy Lopez, Closed, Chigorin |
| 284. V Bergraser vs B Koch |
| 0-1 | 22 | 1956 | 2nd Correspondence World Championship | D75 Neo-Grunfeld, 6.cd Nxd5, 7.O-O c5, 8.dxc5 |
| 285. B Koch vs E Arnlind |
| ½-½ | 49 | 1956 | 2nd Correspondence World Championship | C83 Ruy Lopez, Open |
| 286. B Koch vs J Balogh |
| ½-½ | 58 | 1956 | 2nd Correspondence World Championship | E46 Nimzo-Indian |
| 287. B Koch vs F Batik |
| 1-0 | 55 | 1956 | 2nd Correspondence World Championship | D50 Queen's Gambit Declined |
| 288. V Borsony vs B Koch |
| ½-½ | 54 | 1956 | 2nd Correspondence World Championship | B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4 |
| 289. L Endzelins vs B Koch |
| 1-0 | 48 | 1956 | 2nd Correspondence World Championship | B98 Sicilian, Najdorf |
| 290. S Kjellander vs B Koch |
| 1-0 | 45 | 1956 | 2nd Correspondence World Championship | D99 Grunfeld Defense, Smyslov |
| 291. B Koch vs J Jezek |
| 1-0 | 32 | 1956 | 2nd Correspondence World Championship | A81 Dutch |
| 292. B Koch vs K Kaliwoda |
| 1-0 | 50 | 1956 | 2nd Correspondence World Championship | C92 Ruy Lopez, Closed |
| 293. B Koch vs A Laustsen |
| 1-0 | 33 | 1956 | 2nd Correspondence World Championship | B71 Sicilian, Dragon, Levenfish Variation |
| 294. B Koch vs M Napolitano |
| 0-1 | 42 | 1956 | 2nd Correspondence World Championship | B07 Pirc |
| 295. A Lundqvist vs B Koch |
| 1-0 | 41 | 1956 | 2nd Correspondence World Championship | B98 Sicilian, Najdorf |
| 296. B Koch vs M Bely |
| ½-½ | 16 | 1956 | Moscow Olympiad qual-4 | C84 Ruy Lopez, Closed |
| 297. W Ader Hausman vs B Koch |
| 0-1 | 40 | 1956 | Moscow Olympiad Final-B | A35 English, Symmetrical |
| 298. B Koch vs H Bouwmeester |
| ½-½ | 19 | 1956 | Moscow Olympiad Final-B | B68 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 9...Be7 |
| 299. K Skold vs B Koch |
| ½-½ | 41 | 1956 | Moscow Olympiad Final-B | B40 Sicilian |
| 300. E Rojahn vs B Koch |
| ½-½ | 20 | 1956 | Moscow Olympiad Final-B | D78 Neo-Grunfeld, 6.O-O c6 |
Kibitzing
