Round 3 of the Women's World Championship was marked with an intriguing start - sisters Nadezhda and Tatiana Kosintseva are facing each other. Tatiana's 1.e4 was replied by 1...с6, according to ChessBase none of the sisters played like this earlier. Tatiana, who is White, chose the new continuation on move 3 3.Nc3 (usually both of the sisters play 3.е5).
You can follow 1/8 final games live.