| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. B Leiber vs Herdlitschka |
| ½-½ | 56 | 1974 | NRW-ch | B74 Sicilian, Dragon, Classical |
| 2. U Waagener vs B Leiber |
| 1-0 | 50 | 1976 | NRW-ch | C04 French, Tarrasch, Guimard Main line |
| 3. B Leiber vs Kremer |
| 1-0 | 17 | 1985 | FRG-ch20 qual corr | D02 Queen's Pawn Game |
| 4. B Leiber vs R Mascarinas |
| 0-1 | 33 | 1989 | Lugano Open | A38 English, Symmetrical |
| 5. B Leiber vs A Wojtkiewicz |
| 0-1 | 36 | 1991 | Bad Woerishofen op 7th | B96 Sicilian, Najdorf |
| 6. B Leiber vs F Roeder |
| ½-½ | 47 | 1992 | Ostend Open | B32 Sicilian |
| 7. B Leiber vs F Berend |
| 0-1 | 27 | 1992 | Ostend Open | B32 Sicilian |
| 8. A Nickel vs B Leiber |
 | 1-0 | 27 | 1996 | 50 Years BdF Jubilee Invitational | A33 English, Symmetrical |
| 9. B Leiber vs V Dambrauskas |
| 0-1 | 52 | 1997 | Passau op 5th | B30 Sicilian |
| 10. N Miezis vs B Leiber |
| 1-0 | 25 | 1997 | Bad Zwesten Open | A16 English |
| 11. B Leiber vs E Kengis |
| 0-1 | 30 | 1997 | Bad Zwesten Open | B43 Sicilian, Kan, 5.Nc3 |
| 12. B Leiber vs E Voss |
| ½-½ | 49 | 1997 | Bad Zwesten Open | B09 Pirc, Austrian Attack |
| 13. B Leiber vs S Heise |
| 1-0 | 48 | 1997 | Bad Zwesten Open | B08 Pirc, Classical |
| 14. V Piccardo vs B Leiber |
| 1-0 | 39 | 1999 | W-ch19 q04 corr | A41 Queen's Pawn Game (with ...d6) |
| 15. J Sawatzki vs B Leiber |
| ½-½ | 31 | 1999 | W-ch19 q04 corr | A10 English |
| 16. B Leiber vs H Tiemann |
| 0-1 | 38 | 1999 | W-ch19 q04 corr | D02 Queen's Pawn Game |
| 17. J Bulla vs B Leiber |
| ½-½ | 61 | 1999 | W-ch19 q04 corr | B06 Robatsch |
| 18. U Fremiotti vs B Leiber |
| 1-0 | 30 | 1999 | W-ch19 q04 corr | B06 Robatsch |
| 19. M W Johnson vs B Leiber |
| ½-½ | 36 | 1999 | W-ch19 q04 corr | E80 King's Indian, Samisch Variation |
| 20. N Lauritsen vs B Leiber |
| ½-½ | 37 | 1999 | W-ch19 q04 corr | B06 Robatsch |
| 21. B Leiber vs K Hohm |
| ½-½ | 36 | 1999 | W-ch19 q04 corr | A04 Reti Opening |
| 22. B Leiber vs K M Paul |
| 0-1 | 74 | 1999 | W-ch19 q04 corr | A48 King's Indian |
| 23. B Leiber vs W Johan Mooij |
| ½-½ | 29 | 1999 | W-ch19 q04 corr | D05 Queen's Pawn Game |
| 24. B Leiber vs D Olofsson |
| ½-½ | 35 | 1999 | W-ch19 q04 corr | A04 Reti Opening |
| 25. B Leiber vs D Fleetwood |
| 0-1 | 24 | 1999 | W-ch19 q04 corr | A04 Reti Opening |
Kibitzing
