Game |
| Result | Moves |
Year | Event/Locale | Opening |
26. I Zilber vs Lisitsin |
| ½-½ | 13 | 1956 | URS-ch sf Leningrad | A15 English |
27. I Zilber vs Y Neishtadt |
| 1-0 | 36 | 1956 | URS-ch sf Leningrad | A97 Dutch, Ilyin-Genevsky |
28. N Novotelnov vs I Zilber |
 | 0-1 | 47 | 1956 | URS-ch sf Leningrad | A57 Benko Gambit |
29. I Zilber vs Ragozin |
| ½-½ | 60 | 1956 | URS-ch sf Leningrad | A07 King's Indian Attack |
30. A Khasin vs I Zilber |
| ½-½ | 26 | 1956 | URS-ch sf Leningrad | B05 Alekhine's Defense, Modern |
31. Kotov vs I Zilber |
| ½-½ | 58 | 1956 | URS-ch sf Leningrad | A48 King's Indian |
32. E Stoliar vs I Zilber |
| 1-0 | 67 | 1956 | URS-ch sf Leningrad | A34 English, Symmetrical |
33. Spassky vs I Zilber |
| 1-0 | 21 | 1956 | URS-ch sf Leningrad | A57 Benko Gambit |
34. I Zilber vs G Goldberg |
| 0-1 | 31 | 1956 | URS-ch sf Leningrad | A07 King's Indian Attack |
35. I Zilber vs P Kondratiev |
| 0-1 | 37 | 1956 | URS-ch sf Leningrad | A07 King's Indian Attack |
36. I Zilber vs K Klaman |
 | 1-0 | 44 | 1956 | URS-ch sf Leningrad | A09 Reti Opening |
37. I Zilber vs Aronin |
| 0-1 | 33 | 1956 | URS-ch sf Leningrad | A04 Reti Opening |
38. I Zilber vs D Rovner |
| 1-0 | 51 | 1956 | URS-ch sf Leningrad | E04 Catalan, Open, 5.Nf3 |
39. V Byvshev vs I Zilber |
| 1-0 | 32 | 1956 | URS-ch sf Leningrad | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
40. A Geller vs I Zilber |
| ½-½ | 39 | 1956 | URS-ch sf Leningrad | A64 Benoni, Fianchetto, 11...Re8 |
41. V Kirillov vs I Zilber |
| ½-½ | 42 | 1957 | URS-ch qf | C57 Two Knights |
42. I Zilber vs M Ostrauskas |
| ½-½ | 43 | 1957 | URS-ch qf | A36 English |
43. J Klavins vs I Zilber |
| 0-1 | 34 | 1957 | URS-ch qf | B98 Sicilian, Najdorf |
44. I Zilber vs A Roizman |
| ½-½ | 21 | 1957 | URS-ch qf | B31 Sicilian, Rossolimo Variation |
45. I Zilber vs A Petersons |
| ½-½ | 17 | 1957 | URS-ch qf | A07 King's Indian Attack |
46. A Shagalovich vs I Zilber |
| 0-1 | 40 | 1957 | URS-ch qf | C03 French, Tarrasch |
47. H Luik vs I Zilber |
| 0-1 | 55 | 1957 | URS-ch qf | C64 Ruy Lopez, Classical |
48. I Zilber vs Suetin |
| 0-1 | 56 | 1957 | URS-ch qf | A33 English, Symmetrical |
49. I Zilber vs I Vistaneckis |
| ½-½ | 52 | 1957 | URS-ch qf | A13 English |
50. V Rozhdestvensky vs I Zilber |
| ½-½ | 20 | 1957 | URS-ch qf | B53 Sicilian |