Game |
| Result | Moves |
Year | Event/Locale | Opening |
476. J Kostro vs I Jones |
| ½-½ | 31 | 1974 | Nice Olympiad qual-1 | C43 Petrov, Modern Attack |
477. J Kostro vs G Kuzmin |
| ½-½ | 72 | 1974 | Nice Olympiad qual-1 | B83 Sicilian |
478. W F Croes vs J Kostro |
| 0-1 | 44 | 1974 | Nice Olympiad qual-1 | E22 Nimzo-Indian, Spielmann Variation |
479. R Hoen vs J Kostro |
| ½-½ | 13 | 1974 | Nice Olympiad Final-B | C45 Scotch Game |
480. J Alzate vs J Kostro |
| 0-1 | 34 | 1974 | Nice Olympiad Final-B | B17 Caro-Kann, Steinitz Variation |
481. J Kostro vs J Rodriguez Cordoba |
| 1-0 | 65 | 1974 | Nice Olympiad Final-B | B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long |
482. J Kostro vs G Iskov |
| ½-½ | 99 | 1974 | Nice Olympiad Final-B | B05 Alekhine's Defense, Modern |
483. R Wostyn vs J Kostro |
| 0-1 | 42 | 1974 | Nice Olympiad Final-B | B47 Sicilian, Taimanov (Bastrikov) Variation |
484. J Kostro vs K Janetschek |
| ½-½ | 38 | 1974 | Nice Olympiad Final-B | B43 Sicilian, Kan, 5.Nc3 |
485. J Kostro vs K Kaiszauri |
 | 0-1 | 23 | 1975 | EU-chT sf | B08 Pirc, Classical |
486. J Kostro vs I A Zaitsev |
| 0-1 | 30 | 1976 | Dubna | C92 Ruy Lopez, Closed |
487. Gipslis vs J Kostro |
 | 1-0 | 21 | 1976 | Dubna | C77 Ruy Lopez |
488. J Kostro vs Savon |
| ½-½ | 21 | 1976 | Dubna | B92 Sicilian, Najdorf, Opocensky Variation |
489. J Kostro vs Kholmov |
| 0-1 | 38 | 1976 | Dubna | C07 French, Tarrasch |
490. J Kostro vs Miles |
 | 0-1 | 51 | 1976 | Dubna | B43 Sicilian, Kan, 5.Nc3 |
491. J Kostro vs I A Zaitsev |
| 1-0 | 41 | 1976 | Dubna | C92 Ruy Lopez, Closed |
492. A Donchenko vs J Kostro |
| 0-1 | 61 | 1976 | Dubna | D47 Queen's Gambit Declined Semi-Slav |
493. J Kostro vs L Barczay |
| 0-1 | 31 | 1976 | Dubna | B68 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 9...Be7 |
494. J Kostro vs Plachetka |
| 0-1 | 48 | 1976 | Dubna | B83 Sicilian |
495. J Kostro vs A Hollis |
| ½-½ | 34 | 1977 | olm8 fin B2 corr | B77 Sicilian, Dragon, Yugoslav Attack |
496. J Kostro vs V Sejkora |
| 1-0 | 40 | 1977 | Decin | B29 Sicilian, Nimzovich-Rubinstein |
497. J Kostro vs J Trapl |
| ½-½ | 39 | 1977 | Decin | B27 Sicilian |
498. J Kostro vs S Webb |
| ½-½ | 57 | 1977 | Decin | C09 French, Tarrasch, Open Variation, Main line |
499. J Kostro vs A I Zakharov |
| 0-1 | 20 | 1977 | Decin | B83 Sicilian |
500. K Pinkas vs J Kostro |
| 1-0 | 31 | 1977 | Decin | B17 Caro-Kann, Steinitz Variation |