Overview
Genre
| Studies | 1 | Overview | Omit | Problems |
Authors
| Ettl, Gerald | 1 | Overview | Omit | Problems |
Sources
| Die Schwalbe | 1 | Overview | Omit | Problems |
Keywords
| Pattverteidigung | 1 | Overview | Omit | Problems |
Computer tested
| not C+ | 1 | Overview | Omit | Problems |
Cooked
| not cooked | 1 | Overview | Omit | Problems |
https://pdb.dieschwalbe.de/overview.jsp?expression=A%3D%27Ettl%27++AND+K%3D%27Pattverteidigung%27