Games played since 2014 year by Yasuhiro Yamamoto (Hamamatsu, Japan) in this fuseki

542
1
3
4bw
+11
= 1
-1 
?  

1Yamamoto Yasuhiro - Kato Daisuke
2Yamamoto Yasuhiro - Fujita Yudai
3Fukada Ren - Yamamoto Yasuhiro
4Ishitani Shin-ichi - Yamamoto Yasuhiro