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

43
2
15
4bw
+11
= 1
-1 
?  

1Kamiya Shunsuke - Hata Masayuki
2Hata Masayuki - Okabe Hiroshi
3Hata Masayuki - Fukui Nobuhiro
4Hayashi Shoichi - Hata Masayuki