Overview
Genre
| h# | 4 | Overview | Omit | Problems |
Authors
| Sonnenfeld, Felix Alexander | 1 | Overview | Omit | Problems |
| Sanderse, Jacobus Theodorus | 1 | Overview | Omit | Problems |
| Kupper, Josef | 1 | Overview | Omit | Problems |
| Hage, Poul | 1 | Overview | Omit | Problems |
Sources
| Die Schwalbe | 1 | Overview | Omit | Problems |
| feenschach | 1 | Overview | Omit | Problems |
| Schweizerische Schachzeitung | 1 | Overview | Omit | Problems |
| Stella Polaris | 1 | Overview | Omit | Problems |
Keywords
| Echo-Kombinationen | 4 | Overview | Omit | Problems |
| Exzelsior Weiß | 1 | Overview | Omit | Problems |
| Minimal | 1 | Overview | Omit | Problems |
| mit Umwandlungsfigur | 1 | Overview | Omit | Problems |
Computer tested
| C+ | 3 | Overview | Omit | Problems |
| not C+ | 1 | Overview | Omit | Problems |
Cooked
| not cooked | 3 | Overview | Omit | Problems |
| cooked | 1 | Overview | Omit | Problems |
https://pdb.dieschwalbe.de/overview.jsp?expression=COMMENTDATE%3E%3D20220810+AND+G%3D%27h%23%27+AND+K%3D%27Echo-Kombinationen%27