Games lost by Sergey Olyunin (Nizhny Novgorod, Russia) as black in this fuseki

542
1
3
17bw
+ 5
= 3
-45
?  

1Olyunin Sergey - Gorshenkov Artur
2Olyunin Sergey - Skuridin Alexey
3Olyunin Sergey - Lunkin Vitaly
4Olyunin Sergey - Metreveli Irina