Boleslavsky Isaak Efremovich (09.06.1919 – 15.12.1977)

Soviet Grandmaster (1950) born in Ukraine. Honored Coach of USSR 1964, coach of the Soviet team between 1958-70 , second of David Bronstein in 1951 and of Tigran Petrosian between 1959 and 1969. Also an analyst and chess writer, particularly in opening theory where he contributed at the development in few lines of the Sicilian











