Overview
Genre
| n# | 12 | Overview | Omit | Problems |
| 3# | 2 | Overview | Omit | Problems |
| Fairies | 2 | Overview | Omit | Problems |
Authors
| Keller, Kurt | 16 | Overview | Omit | Problems |
| Croitor, Mihail | 1 | Overview | Omit | Problems |
Sources
| Best Problems | 2 | Overview | Omit | Problems |
| ChessStar | 2 | Overview | Omit | Problems |
| Probleemblad | 2 | Overview | Omit | Problems |
| Schach in Schleswig-Holstein | 2 | Overview | Omit | Problems |
| Schachmatnaja Komposizija | 2 | Overview | Omit | Problems |
| The Problemist | 2 | Overview | Omit | Problems |
| Troll | 1 | Overview | Omit | Problems |
| StrateGems | 1 | Overview | Omit | Problems |
| feenschach | 1 | Overview | Omit | Problems |
| Gaudium | 1 | Overview | Omit | Problems |
Keywords
Computer tested
| C+ | 16 | Overview | Omit | Problems |
Cooked
| not cooked | 16 | 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%27Keller%2C+Kurt%27+AND+NOT+K%3D%27Umwandlung%27