If a woman does not usually daven Mincha at all, does she have to daven on Erev Yom Kippur to say Viduy?

Poskim disagree. Kovetz Halochos (27: 5) maintains that they should daven Mincha on Erev Yom Kippur in order to recite the Viduy and thus reach the number of ten Viduyim as men do. Piskei Teshuvos (620: 2) quoting Ishei Yisroel (46: 54) is of the opinion that although they have to recite Viduy, they are not obliged to say it ten times as men do.