Overview
Genre
| 3# | 1 | Overview | Omit | Problems |
Authors
| Bürger, K. | 1 | Overview | Omit | Problems |
Sources
| Arbeiterstimme Dresden | 1 | Overview | Omit | Problems |
| Volksfreund Recklinghausen | 1 | Overview | Omit | Problems |
Keywords
| Umwandlung | 1 | Overview | Omit | Problems |
| Unterverwandlung | 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=COMMENTDATE%3E%3D20200919+AND+NOT+S%3D%27Schweizerische+Schachzeitung%27+AND+A%3D%27B%C3%BCrger%2C+K.%27