| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Savon vs U Steiner |
| ½-½ | 49 | 1964 | WchT U26 11th fin-A | B14 Caro-Kann, Panov-Botvinnik Attack |
| 2. U Steiner vs Kavalek |
 | 0-1 | 25 | 1964 | WchT U26 11th qual-A | B97 Sicilian, Najdorf |
| 3. Hort vs U Steiner |
| 1-0 | 46 | 1964 | WchT U26 11th fin-A | A34 English, Symmetrical |
| 4. J Tompa vs U Steiner |
| 0-1 | 29 | 1967 | EU-chT preliminary | C71 Ruy Lopez |
| 5. U Steiner vs M Janata |
| 0-1 | 32 | 1967 | EU-chT preliminary | B10 Caro-Kann |
| 6. A Fridh vs U Steiner |
| 1-0 | 20 | 1967 | EU-chT preliminary | B97 Sicilian, Najdorf |
| 7. U Steiner vs P Szilagyi |
| ½-½ | 41 | 1967 | EU-chT preliminary | C96 Ruy Lopez, Closed |
| 8. A Kinzel vs U Steiner |
| 0-1 | 20 | 1967 | Krems | C55 Two Knights Defense |
| 9. Unzicker vs U Steiner |
| 1-0 | 32 | 1967 | Krems | B32 Sicilian |
| 10. U Steiner vs Szabo |
| 0-1 | 42 | 1967 | Krems | B96 Sicilian, Najdorf |
| 11. O Magnusson vs U Steiner |
| 0-1 | 31 | 1970 | Siegen Olympiad qual-6 | A30 English, Symmetrical |
| 12. U Steiner vs R Cintron |
| 1-0 | 33 | 1970 | Siegen Olympiad qual-6 | C14 French, Classical |
| 13. H Hecht vs U Steiner |
| 1-0 | 27 | 1970 | Siegen Olympiad qual-6 | C41 Philidor Defense |
| 14. U Steiner vs I Radulov |
| ½-½ | 20 | 1970 | Siegen Olympiad qual-6 | D55 Queen's Gambit Declined |
| 15. A H Hamdan vs U Steiner |
| ½-½ | 80 | 1970 | Siegen Olympiad Final-B | B54 Sicilian |
| 16. U Steiner vs R Hartoch |
| 1-0 | 72 | 1970 | Siegen Olympiad Final-B | A32 English, Symmetrical Variation |
| 17. U Steiner vs D Hamilton |
| 0-1 | 32 | 1970 | Siegen Olympiad Final-B | C73 Ruy Lopez, Modern Steinitz Defense |
| 18. E Cobo Arteaga vs U Steiner |
| 1-0 | 34 | 1970 | Siegen Olympiad Final-B | E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1 |
| 19. U Steiner vs M Johansson |
| 0-1 | 29 | 1970 | Siegen Olympiad Final-B | C29 Vienna Gambit |
| 20. S Holm vs U Steiner |
| 0-1 | 41 | 1970 | Siegen Olympiad Final-B | E10 Queen's Pawn Game |
| 21. U Geller vs U Steiner |
| 1-0 | 26 | 1970 | Siegen Olympiad Final-B | A25 English |
| 22. U Steiner vs W Schmidt |
| 0-1 | 35 | 1970 | Siegen Olympiad Final-B | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 23. N Povah vs U Steiner |
| 1-0 | 27 | 1978 | Hastings Challengers 1977/78 | B94 Sicilian, Najdorf |
| 24. K Bachmann vs U Steiner |
| 0-1 | 36 | 1978 | Hastings Challengers 1977/78 | E90 King's Indian |
| 25. U Steiner vs Nunn |
| 0-1 | 20 | 1986 | Vienna IBM Open | B90 Sicilian, Najdorf |
Kibitzing
