Overview
Genre
| 2# | 9 | Overview | Omit | Problems |
| 3# | 3 | Overview | Omit | Problems |
| Retro | 1 | Overview | Omit | Problems |
Authors
| Gross, Otto | 12 | Overview | Omit | Problems |
Sources
| Aufbau (New York) | 12 | Overview | Omit | Problems |
Keywords
| Rex solus | 2 | Overview | Omit | Problems |
| Unterverwandlung im Schlüsselzug | 2 | Overview | Omit | Problems |
| Sternflucht | 1 | Overview | Omit | Problems |
| En passant als Schlüssel | 1 | Overview | Omit | Problems |
| Figurenfang | 1 | Overview | Omit | Problems |
| mit Umwandlungsfigur | 1 | Overview | Omit | Problems |
| Pattvermeidung | 1 | Overview | Omit | Problems |
Computer tested
| C+ | 10 | Overview | Omit | Problems |
| not C+ | 2 | Overview | Omit | Problems |
Cooked
| not cooked | 12 | Overview | Omit | Problems |
https://pdb.dieschwalbe.de/overview.jsp?expression=COMMENTDATE%3E%3D20200919+AND+NOT+K%3D%27Hilfsr%C3%BCckz%C3%BCger%27+AND+A%3D%27Gross%2C+Otto%27+AND+NOT+G%3D%27n%23%27