Women s chess champ says men better at the game— AP WirephotoChess champMrs. Marilyn Braun of Milwaukee, co-winner with Mrs. Eva Aronson of St. Petersburg, Fla., of the Na-t*?”1 Horen’s Chess Championship.By The Associated PressWomen’s liberation has been, checkmated on the chessboard and the women themselves are the first to admit it.“The fact is, that women are definitely not as good at chess as men, said Marilyn Braun of Milwaukee, co-winner of the 1972 U.S. Women’s National Championship.“Women have always been in a minority and they’ve never done as well, said Pearle Mann, a regional vice president of the U.S. Chess Federation. “And I think it’s the way we’re built. It’s the way I’m built anyway,”The world championship match between American challenger Bobby Fischer and Russian defender Boris Spassky in Reykjavik, Iceland, has sparked an interest in chess among both men and women, but the females lag far behind.Eva Aronson of St. Petersburg, Fla., who shares thisyear’s women’s title with Mrs. Braun, estimated that there are about 200 rated women players, compared to 1,200 men. There are SS men and 2 women in the chess dub she belongs to.Mrs. Aronson, who’s been playing chess for 30 years, said she believes that chess is “too strenuous for some women. There’s too much pressure.Other factors in the lack of women players, she said, are “childbearing and childbearing responsibilities” and a shortage of willing male competitors.“Men usually don’t like to be defeated by women, Mrs. Aronson said.