पहेली 67030:
पहेली 67030:
Grigory Levenfish - Alexander Chistiakov
11th URS-ch Leningrad URS (17), 1939 Levenfish - Chistiakov, Leningrad 1939
11th URS-ch Leningrad URS (17), 1939 Levenfish - Chistiakov, Leningrad 1939
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