| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. Anand vs Tiviakov |
| ½-½ | 16 |
1990 |
Oakham | B32 Sicilian |
| 27. Tiviakov vs G Timoshenko |
| 1-0 | 48 |
1990 |
Cheliabinsk-A | C86 Ruy Lopez, Worrall Attack |
| 28. Tiviakov vs Blatny |
 | 0-1 | 102 |
1990 |
Oakham | C86 Ruy Lopez, Worrall Attack |
| 29. Tiviakov vs D Norwood |
| ½-½ | 9 |
1990 |
Ch World (juniors) | B06 Robatsch |
| 30. Adams vs Tiviakov |
 | 0-1 | 26 |
1990 |
Oakham 49/253 | B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long |
| 31. Tiviakov vs Petursson |
| ½-½ | 18 |
1991 |
Torcy op | B32 Sicilian |
| 32. Tiviakov vs G Andruet |
| 1-0 | 29 |
1991 |
Torcy op-A | B85 Sicilian, Scheveningen, Classical |
| 33. Smirin vs Tiviakov |
| ½-½ | 23 |
1991 |
Paris-ch op | B36 Sicilian, Accelerated Fianchetto |
| 34. Y Kruppa vs Tiviakov |
| ½-½ | 28 |
1991 |
URS-ch U26 | B76 Sicilian, Dragon, Yugoslav Attack |
| 35. Tiviakov vs I Ibragimov |
| ½-½ | 51 |
1991 |
URS-ch58 | C86 Ruy Lopez, Worrall Attack |
| 36. Tiviakov vs Sherzer |
| 1-0 | 34 |
1991 |
Ch World (juniors) | B64 Sicilian, Richter-Rauzer Attack |
| 37. Dreev vs Tiviakov |
 | 0-1 | 33 |
1991 |
Ch URS | E12 Queen's Indian |
| 38. I Zaitsev vs Tiviakov |
| ½-½ | 26 |
1991 |
URS-ch58 | B30 Sicilian |
| 39. Tiviakov vs G Timoshenko |
| ½-½ | 73 |
1991 |
URS-ch U26 | C77 Ruy Lopez |
| 40. B Kanstler vs Tiviakov |
| 0-1 | 33 |
1991 |
URS-ch58 | E15 Queen's Indian |
| 41. Tiviakov vs M Sorokin |
| ½-½ | 56 |
1991 |
Ch URS (young masters) | C55 Two Knights Defense |
| 42. Tiviakov vs Kramnik |
| ½-½ | 24 |
1991 |
Ch URS | C07 French, Tarrasch |
| 43. A Lukin vs Tiviakov |
| ½-½ | 27 |
1991 |
URS-ch58 | B30 Sicilian |
| 44. K Spraggett vs Tiviakov |
| 1-0 | 66 |
1991 |
Cht Paris | A00 Uncommon Opening |
| 45. Tiviakov vs Vaganian |
| ½-½ | 34 |
1991 |
Moscow URS ch | B04 Alekhine's Defense, Modern |
| 46. Tiviakov vs E Maljutin |
| 1-0 | 31 |
1991 |
URS-ch58 | B01 Scandinavian |
| 47. Tiviakov vs Kramnik |
| ½-½ | 37 |
1991 |
USSR | C07 French, Tarrasch |
| 48. Tiviakov vs Kharlov |
 | 0-1 | 56 |
1991 |
URS-ch U26 | B22 Sicilian, Alapin |
| 49. K Aseev vs Tiviakov |
| 1-0 | 36 |
1991 |
URS-ch58 | E12 Queen's Indian |
| 50. Tiviakov vs Rublevsky |
| ½-½ | 28 |
1991 |
Moscow | B47 Sicilian, Taimanov (Bastrikov) Variation |