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

23
41
5
7bw
+21
=  
-22
?  

1Filippov Sergey - Petrovsky Dmitri
2Filippov Sergey - Skuridin Alexey
3Demidov Alexey - Filippov Sergey
4Degtyar Felix - Filippov Sergey