Q. If a woman does not usually daven Mincha at all, does she have to daven on Erev Yom Kippur to say Viduy?
A. 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.
Rabbi A. Bartfeld as revised by Horav Dovid Pam, Horav Aharon Miller and Horav Chanoch Ehrentreu Shlit’a.