Games won by Polina Yudina (Konosha, Russia) as black in this fuseki

5
2
413
7bw
+4 
=  
-21
?  

1Yudina Polina - Stulova Alisa
2Yudina Polina - Zhukova Kseniia
3Yudina Polina - Porokhina Natalya
4Yudina Polina - Porokhina Natalya