Games played by Yoichi Tamada (Mito, Japan) in this fuseki

2
413
5
4bw
+ 3
=  
-1 
?  

1Kato Yasuhiro - Tamada Yoichi
2Suzuki Rin - Tamada Yoichi
3Tamada Yoichi - Koyama Jun
4Tomobe Katsuhiro - Tamada Yoichi