Games played by Hirouji Sakamoto (Osaka, Japan) in this fuseki

3
24
5
1
4bw
+3 
=1 
-  
?  

1Sakamoto Hirouji - Tarannikov Yuriy
2Sakamoto Hirouji - Tarannikov Yuriy
3Sakamoto Hirouji - Arkbo Frank
4Sakamoto Hirouji - Chernov Sergey