Mary Bain was an American chess

Chess

Chess is a two-player board game played on a chessboard, a square-checkered board with 64 squares arranged in an eight-by-eight grid. It is one of the world's most popular games, played by millions of people worldwide at home, in clubs, online, by correspondence, and in tournaments.Each player...

 master.

She was a Women's World Chess Championship

Women's World Chess Championship

The Women's World Chess Championship is played to determine the women's world champion in chess. Like the World Chess Championship, it is administered by FIDE....

 Challenger in 1937 and 1952 and the first American woman to represent the U.S. in an organized chess competition.

Bain was awarded the Woman International Master title in 1952 and represented her country at the 1963 Chess Olympiad

Chess Olympiad

The Chess Olympiad is a biennial chess tournament in which teams from all over the world compete against each other. The event is organised by FIDE, which selects the host nation.-Birth of the Olympiad:The first Olympiad was unofficial...

, held in Split

Split (city)

Split is a Mediterranean city on the eastern shores of the Adriatic Sea, centered around the ancient Roman Palace of the Emperor Diocletian and its wide port bay. With a population of 178,192 citizens, and a metropolitan area numbering up to 467,899, Split is by far the largest Dalmatian city and...

.

In international tournaments, she took fifth place at Stockholm 1937 (Vera Menchik

Vera Menchik

Vera Menchik was a British-Czech chess player who gained renown as the world's first women's chess champion. She also competed in chess tournaments with some of the world's leading male chess masters, defeating many of them, including future World Champion Max Euwe.The daughter of a Czech father...

 won) and 14th place at Moscow 1952 (Elisabeth Bykova

Elisabeth Bykova

Elisaveta Ivanovna Bykova was a Soviet chess player and the third and fifth Women's World Chess Champion, from 1953 until 1956, and again from 1958 to 1962.In 1938 she won the women's Moscow championship and after the second world war she was a...

 won).

Mary Bain won the U.S. Women's Chess Championship

U.S. Women's Chess Championship

The U.S. Women's Chess Championship tournament is to determine the woman chess champion of the United States.-List of U.S. Women's Chess Champions:*1937 Adele Rivero*1938 Mona May Karff*1940 Adele Rivero*1941 Mona May Karff*1942 Mona May Karff...

in 1951.