Games lost by Sergey Filippov (Moscow, Russia) in this fuseki

425
1
3
6bw
+2 
=  
-31
?  

1Volkov Sergey - Filippov Sergey
2Filippov Sergey - Meritee Ando
3Filippov Sergey - Kulikov Kirill
4Filippov Sergey - Nikonov Konstantin