Games won by Konstantin Nikonov (Elektrostal, Russia) as black in this fuseki

5
41
32
8bw
+42
=1 
-1 
?  

1Nikonov Konstantin - Sinitsyn Vladimir
2Nikonov Konstantin - Berezin Roman
3Nikonov Konstantin - Sadelov Igor
4Nikonov Konstantin - Sirategyan Karen