Overview
Genre
| n# | 4 | Overview | Omit | Problems |
| s# | 1 | Overview | Omit | Problems |
Authors
| Müller, Dieter | 1 | Overview | Omit | Problems |
| Mendheim, Julius | 1 | Overview | Omit | Problems |
| Ugren, Ljubomir | 1 | Overview | Omit | Problems |
| Sardotsch, Nicolo | 1 | Overview | Omit | Problems |
| Tang, Xyan | 1 | Overview | Omit | Problems |
Sources
| 150 Schachkuriositäten | 1 | Overview | Omit | Problems |
| Aufgaben für Schachspieler | 1 | Overview | Omit | Problems |
| Im Wunderland des Schachproblems | 1 | Overview | Omit | Problems |
| Kurioses Schach | 1 | Overview | Omit | Problems |
| Nuova Rivista degli Scacchi | 1 | Overview | Omit | Problems |
| Problem | 1 | Overview | Omit | Problems |
| Schachmatnaja Komposizija | 1 | Overview | Omit | Problems |
| SuperProblem (Website) | 1 | Overview | Omit | Problems |
| Volksstimme (Chemnitz) | 1 | Overview | Omit | Problems |
| Volkswacht für Schlesien | 1 | Overview | Omit | Problems |
Keywords
| Zwickmühle | 6 | Overview | Omit | Problems |
| Umwandlung | 2 | Overview | Omit | Problems |
| Zuglängenrekord | 1 | Overview | Omit | Problems |
| Fesselungsmatt | 1 | Overview | Omit | Problems |
| Opfer schwarzer Figuen | 1 | Overview | Omit | Problems |
| Rochade | 1 | Overview | Omit | Problems |
| Schachschlüssel | 1 | Overview | Omit | Problems |
Computer tested
| not C+ | 3 | Overview | Omit | Problems |
| C+ | 2 | Overview | Omit | Problems |
Cooked
| not cooked | 5 | 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%27Zwickm%C3%BChle%27+AND+NOT+A%3D%27Malcom%2C+James%27