Overview
Genre
| 2# | 1 | Overview | Omit | Problems |
| Retro | 1 | Overview | Omit | Problems |
Authors
| Fabel, Karl | 2 | Overview | Omit | Problems |
Sources
| Basler Nachrichten | 1 | Overview | Omit | Problems |
| Der Schachspiegel | 1 | Overview | Omit | Problems |
| Der Schachzug (FV Schach Berlin) | 1 | Overview | Omit | Problems |
Keywords
| Fabel-Opus | 2 | Overview | Omit | Problems |
| Fesselungsmatt | 1 | Overview | Omit | Problems |
| Linienöffnung | 1 | Overview | Omit | Problems |
| Opferschlüssel | 1 | Overview | Omit | Problems |
| Retroablösung | 1 | Overview | Omit | Problems |
| Schlagschlüssel | 1 | Overview | Omit | Problems |
| Wer ist am Zug? | 1 | Overview | Omit | Problems |
| Doppelschach-Matt | 1 | Overview | Omit | Problems |
Computer tested
| not C+ | 2 | Overview | Omit | Problems |
Cooked
| not cooked | 2 | Overview | Omit | Problems |
https://pdb.dieschwalbe.de/overview.jsp?expression=COMMENTDATE%3E%3D20220810+AND+NOT+G%3D%27n%23%27+AND+K%3D%27Fabel-Opus%27