| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. G Martinov vs Z Kadrev |
| 0-1 | 42 | 1959 | Bulgarian Championship | D18 Queen's Gambit Declined Slav, Dutch |
| 27. Z Kadrev vs P Petkov |
| 1-0 | 23 | 1959 | Bulgarian Championship | B00 Uncommon King's Pawn Opening |
| 28. Z Kadrev vs D Pantaleev |
| ½-½ | 39 | 1959 | Bulgarian Championship | C70 Ruy Lopez |
| 29. N Minev vs Z Kadrev |
| 0-1 | 40 | 1959 | Bulgarian Championship | E80 King's Indian, Samisch Variation |
| 30. Z Kadrev vs A Drumev |
| 1-0 | 30 | 1961 | Bulgarian Championship | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 31. Z Milev vs Z Kadrev |
| 1-0 | 23 | 1961 | Bulgarian Championship | E70 King's Indian |
| 32. N Minev vs Z Kadrev |
| ½-½ | 27 | 1961 | Bulgarian Championship | E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1 |
| 33. Z Kadrev vs J Ajanski |
| 1-0 | 33 | 1961 | Bulgarian Championship | B99 Sicilian, Najdorf, 7...Be7 Main line |
| 34. I Iliev vs Z Kadrev |
| ½-½ | 26 | 1961 | Bulgarian Championship | A49 King's Indian, Fianchetto without c4 |
| 35. I Radulov vs Z Kadrev |
| 1-0 | 32 | 1961 | Bulgarian Championship | D15 Queen's Gambit Declined Slav |
| 36. O Neikirch vs Z Kadrev |
| 1-0 | 42 | 1961 | Bulgarian Championship | E70 King's Indian |
| 37. Z Kadrev vs P Petkov |
| ½-½ | 19 | 1961 | Bulgarian Championship | D34 Queen's Gambit Declined, Tarrasch |
| 38. T Chipev vs Z Kadrev |
| 1-0 | 40 | 1961 | Bulgarian Championship | E70 King's Indian |
| 39. V Prahov vs Z Kadrev |
| ½-½ | 25 | 1961 | Bulgarian Championship | A07 King's Indian Attack |
| 40. Z Kadrev vs R Filchev |
| 1-0 | 31 | 1961 | Bulgarian Championship | B46 Sicilian, Taimanov Variation |
| 41. L Popov vs Z Kadrev |
| 1-0 | 48 | 1961 | Bulgarian Championship | E82 King's Indian, Samisch, double Fianchetto Variation |
| 42. Z Kadrev vs K Krastev |
| 1-0 | 40 | 1961 | Bulgarian Championship | C19 French, Winawer, Advance |
| 43. K Piskov vs Z Kadrev |
| ½-½ | 68 | 1961 | Bulgarian Championship | C63 Ruy Lopez, Schliemann Defense |
| 44. Z Kadrev vs A Milev |
| 1-0 | 37 | 1961 | Bulgarian Championship | B15 Caro-Kann |
| 45. D Pantaleev vs Z Kadrev |
| 0-1 | 41 | 1961 | Bulgarian Championship | D70 Neo-Grunfeld Defense |
| 46. Z Kadrev vs L Spassov |
| 1-0 | 27 | 1961 | Bulgarian Championship | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 47. A Filipowicz vs Z Kadrev |
| ½-½ | 25 | 1964 | Moscow | C35 King's Gambit Accepted, Cunningham |
| 48. T Stanciu vs Z Kadrev |
| ½-½ | 40 | 1964 | European Team Championship qual-3 | B02 Alekhine's Defense |
| 49. G Szilagyi vs Z Kadrev |
| ½-½ | 37 | 1964 | European Team Championship qual-3 | B04 Alekhine's Defense, Modern |
| 50. Z Kadrev vs H Handel |
| ½-½ | 47 | 1964 | European Team Championship qual-3 | E12 Queen's Indian |
Kibitzing
