Izaak Grynfeld
Izaak Grynfeld is a Polish–Israeli chess master.
In 1938, he tied for 3rd-4th in Kraków. After World War II, he played six-times in Polish championships. His best achievement was a 3rd-4th place at Sopot 1946.
In tournaments, he tied for 9-10th at Warsaw 1947, took 18th at Szczawno Zdrój 1950, and tied for 15-16th at Międzyzdroje 1952.
Grynfeld was born in Łódź, and represented Poland in the 10th Chess Olympiad at Helsinki 1952, winning the silver medal at second reserve board there. He also played for Poland in friendly matches: POL–CSR at Katowice 1949, POL–HUN at Warsaw 1949, and POL–HUN–GDR at Görlitz 1952. He later emigrated to Israel.