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

425
1
3
4bw
+11
=  
-11
?  

1Tamada Yoichi - Ishitani Shin-ichi
2Nakamura Shigeru - Tamada Yoichi
3Tamada Yoichi - Mitsumori Masao
4Mitsumori Masao - Tamada Yoichi