Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. J Kosciuk vs E Meduna |
| 1-0 | 40 | 1979 | Bialystok | A61 Benoni |
2. J Kosciuk vs A A Idema |
| ½-½ | 19 | 1988 | EU-chT3 fin 03 corr8892 | A07 King's Indian Attack |
3. H Pinson vs J Kosciuk |
| 0-1 | 23 | 1988 | W-ch sf corr | C15 French, Winawer |
4. V Gefenas vs J Kosciuk |
| ½-½ | 33 | 1988 | EU-chT3 fin 03 corr8892 | E91 King's Indian |
5. J Goth vs J Kosciuk |
| ½-½ | 28 | 1988 | EU-chT3 fin 03 corr8892 | C09 French, Tarrasch, Open Variation, Main line |
6. H Heemsoth vs J Kosciuk |
| ½-½ | 40 | 1988 | EU-chT3 fin 03 corr8892 | C07 French, Tarrasch |
7. J Kosciuk vs D Krastanov |
| 0-1 | 35 | 1988 | EU-chT3 fin 03 corr8892 | A07 King's Indian Attack |
8. J Kosciuk vs S Letic |
| ½-½ | 24 | 1988 | EU-chT3 fin 03 corr8892 | E09 Catalan, Closed |
9. J Kosciuk vs J Sellberg |
| 1-0 | 69 | 1988 | EU-chT3 fin 03 corr8892 | A30 English, Symmetrical |
10. S Landgraf vs J Kosciuk |
| 1-0 | 46 | 1988 | EU-chT3 fin 03 corr8892 | A48 King's Indian |
11. S Daciuk vs J Kosciuk |
| 1-0 | 32 | 1992 | POL-chT9 B2 corr | E73 King's Indian |
12. T Franczak vs J Kosciuk |
| ½-½ | 25 | 1992 | POL-chT9 B2 corr | C09 French, Tarrasch, Open Variation, Main line |
13. J Kosciuk vs T Kleszarski |
| 1-0 | 19 | 1992 | POL-chT9 B2 corr | A07 King's Indian Attack |
14. J Kosciuk vs H Sosinka |
| ½-½ | 37 | 1992 | POL-chT9 B2 corr | E17 Queen's Indian |
15. J Kosciuk vs A Szczepaniak |
| 1-0 | 48 | 1992 | POL-chT9 B2 corr | A07 King's Indian Attack |
16. J Kosciuk vs W Walaszczyk |
| 0-1 | 71 | 1992 | POL-chT9 B2 corr | D15 Queen's Gambit Declined Slav |
17. J Kosciuk vs K Wiacek |
| ½-½ | 61 | 1992 | POL-chT9 B2 corr | A14 English |
18. S Mierzejewski vs J Kosciuk |
| ½-½ | 20 | 1992 | POL-chT9 B2 corr | C07 French, Tarrasch |
19. K Eyer vs J Kosciuk |
| 0-1 | 37 | 1997 | EU-ch M corr | E91 King's Indian |
20. J Kosciuk vs J Bielczyk |
| ½-½ | 23 | 1997 | POL-chT12 corr | E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1 |
21. J Kosciuk vs H Ertel |
| 0-1 | 48 | 1997 | EU-ch M corr | A43 Old Benoni |
22. J Kosciuk vs T Runowiecki |
| 1-0 | 45 | 1997 | POL-chT12 corr | E62 King's Indian, Fianchetto |
23. J Kosciuk vs W Sapis |
| ½-½ | 11 | 1997 | POL-chT12 corr | D13 Queen's Gambit Declined Slav, Exchange Variation |
24. J Kosciuk vs W Walaszczyk |
| ½-½ | 31 | 1997 | POL-chT12 corr | A06 Reti Opening |
25. J Kosciuk vs L Wydrowski |
| ½-½ | 22 | 1997 | POL-chT12 corr | D32 Queen's Gambit Declined, Tarrasch |