Games played by Sergey Vostryakov (Podyuga, Russia) in this fuseki

5
2
13
4
3bw
+2 
=  
-1 
?  

1Vostryakov Sergey - Salnikova Nonna
2Vostryakov Sergey - Atreschenkov Gennadi
3Vostryakov Sergey - Semyonov Vladimir