Olga Rubtsova

Who was Olga Rubtsova?

Olga Nikolaevna Rubtsova was a Soviet chess player and fourth Women's World Chess Champion.

She won the Soviet Women's Championship four times, and was second in the Women's World Chess Championship 1949–50, a point behind Lyudmila Rudenko. She won the title in 1956, finishing ahead of Rudenko and Elisabeth Bykova in a match tournament, before losing it to Bykova in a match in 1958.

Rubtsova also played correspondence chess, and became first Women's World Correspondence Chess Champion in 1972. As of 2006, she remains the only player, male or female, to become World Champion in both over-the-board and correspondence chess.