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

25
1
3
4
11bw
+ 2
=11
-52
?  

1Nikonov Konstantin - Klimashin Alexander
2Nikonov Konstantin - Karlsson Stefan
3Nikonov Konstantin - Karpenko Alexander
4Nikonov Konstantin - Biryukov Mikhail
5Nikonov Konstantin - Nosovsky Alexander
6Nikonov Konstantin - Smirnov Sergey