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

52
413
4bw
+1 
=  
-21
?  

1Hata Masayuki - Sakamoto Hirouji
2Sakamoto Hirouji - Iio Yoshihiro
3Sakamoto Hirouji - Iio Yoshihiro
4Sakamoto Hirouji - Masuda Yuuto