| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. Delchev vs J Sinowjew |
| 1-0 | 35 | 1990 | European Junior Championship 1990/91 | E62 King's Indian, Fianchetto |
| 27. J Sinowjew vs G Mastrokoukos |
| 0-1 | 34 | 1991 | European Junior Championship 1990/91 | B45 Sicilian, Taimanov |
| 28. J Sinowjew vs J Klinger |
| ½-½ | 13 | 1991 | Oberwart Open | B00 Uncommon King's Pawn Opening |
| 29. J Sinowjew vs E Brestian |
| 1-0 | 34 | 1991 | Oberwart Open | B06 Robatsch |
| 30. Plachetka vs J Sinowjew |
| ½-½ | 34 | 1991 | Oberwart Open | D03 Torre Attack (Tartakower Variation) |
| 31. R Mainka vs J Sinowjew |
| 1-0 | 20 | 1991 | Oberwart Open | B46 Sicilian, Taimanov Variation |
| 32. J Sinowjew vs L Gyorkos |
| 1-0 | 37 | 1991 | Oberwart Open | B58 Sicilian |
| 33. M Palac vs J Sinowjew |
| 1-0 | 21 | 1991 | Oberwart Open | A48 King's Indian |
| 34. J Sinowjew vs Razuvaev |
| 0-1 | 49 | 1991 | Hartberg Open | B32 Sicilian |
| 35. J Sinowjew vs Z Gofshtein |
| 0-1 | 28 | 1991 | Hartberg Open | B84 Sicilian, Scheveningen |
| 36. J Sequera vs J Sinowjew |
| 1-0 | 29 | 1991 | World Junior Championship | B22 Sicilian, Alapin |
| 37. J Sinowjew vs J Gonzalez Garcia |
| 0-1 | 57 | 1991 | World Junior Championship | C02 French, Advance |
| 38. L Savas vs J Sinowjew |
| 0-1 | 33 | 1991 | World Junior Championship | B46 Sicilian, Taimanov Variation |
| 39. G Buckley vs J Sinowjew |
| 0-1 | 51 | 1991 | World Junior Championship | E73 King's Indian |
| 40. J Sinowjew vs R Livshits |
| 0-1 | 41 | 1991 | World Junior Championship | C90 Ruy Lopez, Closed |
| 41. J Sinowjew vs C G Ong |
| 1-0 | 33 | 1991 | World Junior Championship | C63 Ruy Lopez, Schliemann Defense |
| 42. D Pedzich vs J Sinowjew |
| ½-½ | 28 | 1991 | World Junior Championship | B46 Sicilian, Taimanov Variation |
| 43. J Sinowjew vs R Barcenilla |
| 0-1 | 74 | 1991 | World Junior Championship | A49 King's Indian, Fianchetto without c4 |
| 44. M Ceteras vs J Sinowjew |
| 1-0 | 59 | 1991 | World Junior Championship | E81 King's Indian, Samisch |
| 45. J Sinowjew vs S Rocha |
 | 1-0 | 66 | 1991 | World Junior Championship | B28 Sicilian, O'Kelly Variation |
| 46. S M Hill vs J Sinowjew |
| 1-0 | 29 | 1991 | World Junior Championship | B23 Sicilian, Closed |
| 47. Nisipeanu vs J Sinowjew |
| ½-½ | 46 | 1991 | World Junior Championship | B46 Sicilian, Taimanov Variation |
| 48. J Sinowjew vs E Van Beers |
| 1-0 | 39 | 1991 | World Junior Championship | C63 Ruy Lopez, Schliemann Defense |
| 49. M Wach vs J Sinowjew |
| 0-1 | 40 | 1991 | Austrian Championship | C02 French, Advance |
| 50. J Sinowjew vs G Schroll |
| 0-1 | 40 | 1991 | Austrian Championship | B03 Alekhine's Defense |
Kibitzing
