Games lost by Sergey Artemyev (Saint Petersburg, Russia) as black in this fuseki

25
1
3
4
13bw
+7 
=1 
-41
?  

1Artemyev Sergey - Chingin Konstantin
2Artemyev Sergey - Iio Yoshihiro
3Artemyev Sergey - Karlsson Stefan
4Artemyev Sergey - Kolesnik Vladimir