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Gennadi Sosonko

Dutch chess grandmaster
Gennadi "Genna" Sosonko is a Dutch chess grandmaster and writer. He has been awarded the title Grandmaster by FIDE and is a twice Dutch champion. Wikipedia
Born: 1943 (age 80 years), Troitsk, Russia
Nationality: Dutch
FIDE rating: 2520 (March 2024)
Books