Games played by Masayuki Hata (Hirakata, Japan) in this fuseki

425
1
3
4bw
+2 
=1 
-1 
?  

1Hata Masayuki - Okabe Hiroshi
2Hata Masayuki - Miyagawa Junzo
3Hata Masayuki - Kubo Izumi
4Hata Masayuki - Matsuo Toshiko