Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)
1st Prize, Tijdschrift vd KNSB, 1937
#3
10 + 14
57 | Tijdschrift vd KNSB | 1938 |
3773 | FIDE Album (1914-1944) (II) | 1972 |
6004 | Henk Hagedoorn Solving Ty. | 2008 |
56 | The Problemist | 2011 |
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