Games played by Yoshitaka Tanno (Aomori, Japan) in this fuseki

2
413
5
4bw
+ 4
=  
-  
?  

1Koseki Kenshou - Tanno Yoshitaka
2Yamamoto Yuuichi - Tanno Yoshitaka
3Yamamoto Yuuichi - Tanno Yoshitaka
4Koseki Kenshou - Tanno Yoshitaka