Overview
Genre
| 3# | 2 | Overview | Omit | Problems |
| n# | 1 | Overview | Omit | Problems |
Authors
| Kockelkorn, Carl | 1 | Overview | Omit | Problems |
| Kohtz, Johannes | 1 | Overview | Omit | Problems |
| Kubbel, Karl Arthur Leonid | 1 | Overview | Omit | Problems |
| Kopfstahl, W. | 1 | Overview | Omit | Problems |
Sources
| Rigaer Tageblatt | 3 | Overview | Omit | Problems |
| Schachminiaturen - Neue Folge | 1 | Overview | Omit | Problems |
| Schweizerische Schachzeitung | 1 | Overview | Omit | Problems |
| Veda a prace | 1 | Overview | Omit | Problems |
| ? | 1 | Overview | Omit | Problems |
| Arbeiter-Schachkalender | 1 | Overview | Omit | Problems |
| Kalendar Schachmatista | 1 | Overview | Omit | Problems |
Keywords
| Miniatur | 3 | Overview | Omit | Problems |
| Rex solus | 3 | Overview | Omit | Problems |
| Miniaturensammlung | 2 | Overview | Omit | Problems |
| fluchtfeldgebender Opferschlüssel | 1 | Overview | Omit | Problems |
| fluchtfeldgebender Schlüssel | 1 | Overview | Omit | Problems |
Computer tested
| C+ | 3 | Overview | Omit | Problems |
Cooked
| not cooked | 3 | Overview | Omit | Problems |
https://pdb.dieschwalbe.de/overview.jsp?expression=COMMENTDATE%3E%3D20200919+AND+NOT+K%3D%27Hilfsr%C3%BCckz%C3%BCger%27+AND+K%3D%27Rex+solus%27+AND+S%3D%27Rigaer+Tageblatt%27