Benjamin Blumenfeld
Benjamin Blumenfeld was a Russian chess master.
He was born in Vilkaviškis, in the Suwałki Governorate of the Russian Empire. In 1905/06 he tied for second/third with Akiba Rubinstein, behind Gersz Salwe, in St. Petersburg. In 1907 he tied for second/third with Georg Marco, behind Mikhail Chigorin, in Moscow.
In 1920 he took eighth in Moscow. The event was won by Alexander Alekhine. In 1925 he tied for second/third with Boris Verlinsky, behind Aleksandr Sergeyev, in the Moscow championship.
He invented the Blumenfeld Gambit.*