| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. A Sydor vs T Zoltek |
| ½-½ | 42 | 1966 | Polish Championship | B30 Sicilian |
| 27. J Lachut vs A Sydor |
| 0-1 | 38 | 1966 | Polish Championship | C55 Two Knights Defense |
| 28. A Filipowicz vs A Sydor |
| ½-½ | 28 | 1966 | Polish Championship | C83 Ruy Lopez, Open |
| 29. S Brzozka vs A Sydor |
| ½-½ | 17 | 1966 | Polish Championship | C47 Four Knights |
| 30. A Sydor vs W Balcerowski |
| ½-½ | 26 | 1966 | Polish Championship | B08 Pirc, Classical |
| 31. A Sydor vs Sliwa |
| 1-0 | 30 | 1966 | Rubinstein Memorial | C16 French, Winawer |
| 32. J Bednarski vs A Sydor |
| 1-0 | 57 | 1966 | Rubinstein Memorial | C80 Ruy Lopez, Open |
| 33. A Sydor vs G Kluger |
| ½-½ | 36 | 1966 | Rubinstein Memorial | C77 Ruy Lopez |
| 34. H Liebert vs A Sydor |
| 1-0 | 21 | 1966 | Rubinstein Memorial | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 35. A Sydor vs A Filipowicz |
| 1-0 | 28 | 1966 | Rubinstein Memorial | B45 Sicilian, Taimanov |
| 36. M Ujtelky vs A Sydor |
| ½-½ | 52 | 1966 | Rubinstein Memorial | A00 Uncommon Opening |
| 37. A Sydor vs O Neikirch |
| ½-½ | 21 | 1966 | Rubinstein Memorial | C65 Ruy Lopez, Berlin Defense |
| 38. Lengyel vs A Sydor |
| 1-0 | 35 | 1966 | Rubinstein Memorial | D07 Queen's Gambit Declined, Chigorin Defense |
| 39. A Sydor vs Smyslov |
| 0-1 | 41 | 1966 | Rubinstein Memorial | B16 Caro-Kann, Bronstein-Larsen Variation |
| 40. P Smederevac vs A Sydor |
| 1-0 | 32 | 1966 | Rubinstein Memorial | A02 Bird's Opening |
| 41. A Sydor vs Z Doda |
| ½-½ | 41 | 1966 | Rubinstein Memorial | B48 Sicilian, Taimanov Variation |
| 42. B Pietrusiak vs A Sydor |
| 1-0 | 42 | 1966 | Rubinstein Memorial | B01 Scandinavian |
| 43. A Sydor vs M Damjanovic |
| 1-0 | 47 | 1966 | Rubinstein Memorial | B50 Sicilian |
| 44. W Balcerowski vs A Sydor |
| 1-0 | 48 | 1966 | Rubinstein Memorial | A80 Dutch |
| 45. A Sydor vs J Adamski |
| ½-½ | 34 | 1967 | POL-chT 20th | B50 Sicilian |
| 46. A Sydor vs R Grabczewski |
| ½-½ | 16 | 1967 | Polish Championship | D63 Queen's Gambit Declined, Orthodox Defense |
| 47. A Sydor vs Z Doda |
| 0-1 | 43 | 1967 | Polish Championship | B28 Sicilian, O'Kelly Variation |
| 48. J Bednarski vs A Sydor |
| 1-0 | 58 | 1967 | Polish Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 49. H Sliwinski vs A Sydor |
| 0-1 | 39 | 1967 | Polish Championship | A46 Queen's Pawn Game |
| 50. A Sydor vs W Dobrzynski |
| ½-½ | 30 | 1967 | Polish Championship | C78 Ruy Lopez |
Kibitzing
