| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. J Nun vs S Kupka |
| ½-½ | 20 | 1964 | Czechoslovak Championship | E46 Nimzo-Indian |
| 27. J Hybl vs J Nun |
| ½-½ | 30 | 1964 | Czechoslovak Championship | C05 French, Tarrasch |
| 28. J Nun vs M Hajek |
| ½-½ | 36 | 1964 | Czechoslovak Championship | D00 Queen's Pawn Game |
| 29. M Ujtelky vs J Nun |
| ½-½ | 59 | 1964 | Czechoslovak Championship | A15 English |
| 30. J Nun vs J Lendl |
| 1-0 | 60 | 1964 | Czechoslovak Championship | D19 Queen's Gambit Declined Slav, Dutch |
| 31. M Altschul vs J Nun |
| ½-½ | 26 | 1964 | Czechoslovak Championship | B32 Sicilian |
| 32. F Blatny vs J Nun |
| ½-½ | 24 | 1964 | Czechoslovak Championship | C78 Ruy Lopez |
| 33. J Nun vs J Marsalek |
| ½-½ | 40 | 1964 | Czechoslovak Championship | B32 Sicilian |
| 34. J Nun vs J Trapl |
| ½-½ | 15 | 1964 | Czechoslovak Championship | C57 Two Knights |
| 35. J Nun vs C Delenda |
| 1-0 | 41 | 1965 | olm5 fin B6 corr6568 | C11 French |
| 36. N A Preo vs J Nun |
| 1-0 | 27 | 1965 | olm5 fin B6 corr6568 | C74 Ruy Lopez, Modern Steinitz Defense |
| 37. W Poder vs J Nun |
| ½-½ | 48 | 1965 | olm5 fin B6 corr6568 | D14 Queen's Gambit Declined Slav, Exchange Variation |
| 38. J Nun vs F Parr |
| 1-0 | 38 | 1965 | olm5 fin B6 corr6568 | E77 King's Indian |
| 39. J Nun vs R Strand |
| ½-½ | 51 | 1965 | olm5 fin B6 corr6568 | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 40. L Zinn vs J Nun |
| 0-1 | 27 | 1965 | olm5 fin B6 corr6568 | C57 Two Knights |
| 41. J Nun vs W Sauermann |
| 1-0 | 41 | 1965 | olm5 fin B6 corr6568 | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 42. Y Estrin vs J Nun |
 | 0-1 | 16 | 1965 | olm5 fin B6 corr6568 | C57 Two Knights |
| 43. J Nun vs J Slizek |
| 1-0 | 41 | 1968 | CSR-ch12 corr | E46 Nimzo-Indian |
| 44. J Nun vs V Sojka |
| 1-0 | 15 | 1968 | CSR-ch12 corr | B23 Sicilian, Closed |
| 45. J Nun vs K Urbanec |
| 1-0 | 35 | 1968 | CSR-ch12 corr | D20 Queen's Gambit Accepted |
| 46. B Svancer vs J Nun |
| 0-1 | 45 | 1968 | CSR-ch12 corr | A34 English, Symmetrical |
| 47. E Vitasek vs J Nun |
| 1-0 | 40 | 1968 | CSR-ch12 corr | D34 Queen's Gambit Declined, Tarrasch |
| 48. M Weiner vs J Nun |
| 0-1 | 45 | 1968 | CSR-ch12 corr | C78 Ruy Lopez |
| 49. J Nun vs J Richter |
| 1-0 | 30 | 1968 | CSR-ch12 corr | B09 Pirc, Austrian Attack |
| 50. J Nun vs R Sevecek |
| 1-0 | 53 | 1968 | CSR-ch12 corr | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
Kibitzing
