Games played since 2016 year by Konstantin Nikonov (Elektrostal, Russia) in this fuseki

4
52
1
3
4bw
+ 1
=2 
- 1
?  

1Nikonov Konstantin - Fedorkin Oleg
2Nikonov Konstantin - Makarov Pavel
3Koyama Jun - Nikonov Konstantin
4Smirnov Evgeny - Nikonov Konstantin