Games played by Shigemasa Koiso (Omihachiman, Japan) in this fuseki

3
24
15
4bw
+  
=  
-4 
?  

1Koiso Shigemasa - Okabe Hiroshi
2Koiso Shigemasa - Makarov Pavel
3Koiso Shigemasa - Takagawa Teiji
4Koiso Shigemasa - Takagawa Teiji