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

542
1
3
4bw
+21
=  
-1 
?  

1Koiso Shigemasa - Oosumi Yuuki
2Haga Itaru - Koiso Shigemasa
3Koiso Shigemasa - Matsui Tsunehiro
4Koiso Shigemasa - Yasumoto Yoshinobu