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

425
1
3
7bw
+21
= 2
-2 
?  

1Koiso Shigemasa - Haga Itaru
2Kitamoto Kenji - Koiso Shigemasa
3Koiso Shigemasa - Funamoto Tadashi
4Koiso Shigemasa - Tatsutomi Hiroyuki
5Samotsvetov Igor - Koiso Shigemasa
6Koiso Shigemasa - Sakamoto Hirouji
7Hata Masayuki - Koiso Shigemasa