Overview
Genre
| Retro | 1 | Overview | Omit | Problems |
Authors
| Ettl, Gerald | 1 | Overview | Omit | Problems |
Sources
| feenschach | 1 | Overview | Omit | Problems |
Keywords
| Einfärbeproblem | 1 | Overview | Omit | Problems |
Computer tested
| not C+ | 1 | Overview | Omit | Problems |
Cooked
| cooked | 1 | Overview | Omit | Problems |
https://pdb.dieschwalbe.de/overview.jsp?expression=A%3D%27Ettl%27++AND+K%3D%27Einf%C3%A4rbeproblem%27