Harder, Karl
Essener Anzeiger, 1926
#2
12 + 6
3098 | FIDE Album (1914-1944) (I) | 1971 |
422 | Suomen Tehtavaniekat | 2007 |
133 | The Problemist Supplement | 2013 |
102 | Probleemblad | 2014 |
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