| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. Basin vs V Osnos |
| 0-1 | 43 | 1956 | All-Union Mass Tournament | D86 Grunfeld, Exchange |
| 27. Sokolov vs V Osnos |
| 1-0 | 24 | 1956 | All-Union Mass Tournament | D03 Torre Attack (Tartakower Variation) |
| 28. V Osnos vs Y Estrin |
| ½-½ | 27 | 1956 | All-Union Mass Tournament | E53 Nimzo-Indian, 4.e3 |
| 29. V Osnos vs Kogan |
| 1-0 | 45 | 1956 | All-Union Mass Tournament | E41 Nimzo-Indian |
| 30. V Osnos vs Spassky |
 | 1-0 | 51 | 1956 | URS-ch sf Leningrad | A60 Benoni Defense |
| 31. Ragozin vs V Osnos |
| 0-1 | 38 | 1956 | URS-ch sf Leningrad | B59 Sicilian, Boleslavsky Variation, 7.Nb3 |
| 32. V Osnos vs Y Neishtadt |
| 1-0 | 52 | 1956 | URS-ch sf Leningrad | A07 King's Indian Attack |
| 33. V Osnos vs I Slepoy |
| ½-½ | 44 | 1956 | URS-ch sf Leningrad | D37 Queen's Gambit Declined |
| 34. V Osnos vs D Rovner |
| 1-0 | 40 | 1956 | URS-ch sf Leningrad | A07 King's Indian Attack |
| 35. Kotov vs V Osnos |
| 1-0 | 41 | 1956 | URS-ch sf Leningrad | E38 Nimzo-Indian, Classical, 4...c5 |
| 36. V Osnos vs G Goldberg |
| ½-½ | 26 | 1956 | URS-ch sf Leningrad | D74 Neo-Grunfeld, 6.cd Nxd5, 7.O-O |
| 37. I Zilber vs V Osnos |
| 1-0 | 45 | 1956 | URS-ch sf Leningrad | D90 Grunfeld |
| 38. V Osnos vs A Khasin |
| ½-½ | 18 | 1956 | URS-ch sf Leningrad | E19 Queen's Indian, Old Main line, 9.Qxc3 |
| 39. E Stoliar vs V Osnos |
| ½-½ | 41 | 1956 | URS-ch sf Leningrad | A16 English |
| 40. V Osnos vs K Klaman |
| 0-1 | 24 | 1956 | URS-ch sf Leningrad | D40 Queen's Gambit Declined, Semi-Tarrasch |
| 41. V Byvshev vs V Osnos |
| ½-½ | 22 | 1956 | URS-ch sf Leningrad | B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4 |
| 42. P Kondratiev vs V Osnos |
| ½-½ | 18 | 1956 | URS-ch sf Leningrad | B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4 |
| 43. V Osnos vs Aronin |
| 1-0 | 114 | 1956 | URS-ch sf Leningrad | D32 Queen's Gambit Declined, Tarrasch |
| 44. V Mikenas vs V Osnos |
| ½-½ | 42 | 1956 | URS-ch sf Leningrad | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 45. A Geller vs V Osnos |
| ½-½ | 22 | 1956 | URS-ch sf Leningrad | E59 Nimzo-Indian, 4.e3, Main line |
| 46. Lisitsin vs V Osnos |
| ½-½ | 41 | 1956 | URS-ch sf Leningrad | A46 Queen's Pawn Game |
| 47. V Osnos vs N Novotelnov |
| ½-½ | 41 | 1956 | URS-ch sf Leningrad | D11 Queen's Gambit Declined Slav |
| 48. Tolush vs V Osnos |
| 1-0 | 44 | 1956 | URS-ch sf Leningrad | B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4 |
| 49. Vasiukov vs V Osnos |
| 0-1 | 39 | 1957 | Ch Moscow (1/2 final) | D78 Neo-Grunfeld, 6.O-O c6 |
| 50. V Liberzon vs V Osnos |
| 1-0 | 33 | 1957 | Ch Moscow (1/2 final) | B62 Sicilian, Richter-Rauzer |
Kibitzing
