| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 651. R Kuczynski vs Ehlvest |
| ½-½ | 41 | 1999 | Gawlikowski Memorial Rapid | B84 Sicilian, Scheveningen |
| 652. R Kuczynski vs A Mikhalchishin |
| 0-1 | 37 | 1999 | Gawlikowski Memorial Rapid | C55 Two Knights Defense |
| 653. R Kuczynski vs A Mikhalchishin |
| 1-0 | 44 | 1999 | Gawlikowski Memorial Rapid | C55 Two Knights Defense |
| 654. R Kuczynski vs Rozentalis |
| 1-0 | 33 | 1999 | Gawlikowski Memorial Rapid | C42 Petrov Defense |
| 655. Svidler vs R Kuczynski |
| ½-½ | 16 | 1999 | Gawlikowski Memorial Rapid | B90 Sicilian, Najdorf |
| 656. Van Wely vs R Kuczynski |
| ½-½ | 54 | 1999 | Gawlikowski Memorial Rapid | D45 Queen's Gambit Declined Semi-Slav |
| 657. M Womacka vs R Kuczynski |
| 0-1 | 58 | 1999 | BL2-Ost 9900 | B90 Sicilian, Najdorf |
| 658. A Kosten vs R Kuczynski |
| 1-0 | 35 | 2000 | BL2-Ost 9900 | B14 Caro-Kann, Panov-Botvinnik Attack |
| 659. J Arnold vs R Kuczynski |
| ½-½ | 25 | 2000 | BL2-Ost9900 | D13 Queen's Gambit Declined Slav, Exchange Variation |
| 660. R Kuczynski vs A Czerwonski |
| ½-½ | 35 | 2000 | Polish Championship | B08 Pirc, Classical |
| 661. T Markowski vs R Kuczynski |
| 1-0 | 61 | 2000 | Polish Championship | A04 Reti Opening |
| 662. R Kuczynski vs R Kempinski |
| ½-½ | 12 | 2000 | Polish Championship | B84 Sicilian, Scheveningen |
| 663. B Grabarczyk vs R Kuczynski |
| 0-1 | 41 | 2000 | Polish Championship | B96 Sicilian, Najdorf |
| 664. R Kuczynski vs J Gdanski |
| ½-½ | 15 | 2000 | Polish Championship | B27 Sicilian |
| 665. P Blehm vs R Kuczynski |
| ½-½ | 29 | 2000 | Polish Championship | B90 Sicilian, Najdorf |
| 666. R Kuczynski vs B Socko |
| ½-½ | 48 | 2000 | Polish Championship | C18 French, Winawer |
| 667. Krasenkow vs R Kuczynski |
| ½-½ | 35 | 2000 | Polish Championship | D45 Queen's Gambit Declined Semi-Slav |
| 668. R Kuczynski vs Macieja |
| ½-½ | 26 | 2000 | Polish Championship | B17 Caro-Kann, Steinitz Variation |
| 669. R Kuczynski vs A Hnydiuk |
| 1-0 | 82 | 2000 | Polish Championship | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 670. K Urban vs R Kuczynski |
| ½-½ | 42 | 2000 | Polish Championship | A06 Reti Opening |
| 671. R Kuczynski vs M Grabarczyk |
| 1-0 | 41 | 2000 | Polish Championship | C67 Ruy Lopez |
| 672. P Jaracz vs R Kuczynski |
| ½-½ | 4 | 2000 | Polish Championship | C42 Petrov Defense |
| 673. R Kuczynski vs Romanishin |
| ½-½ | 30 | 2000 | European Championship | C87 Ruy Lopez |
| 674. Yakovich vs R Kuczynski |
| ½-½ | 77 | 2000 | European Championship | A88 Dutch, Leningrad, Main Variation with c6 |
| 675. R Kuczynski vs Tiviakov |
| ½-½ | 21 | 2000 | European Championship | B32 Sicilian |
Kibitzing
