Games won by Taizan Isobe (Omiya, Japan) as black in this fuseki

4
2
1
35
33bw
+48
=53
-85
?  

1Isobe Taizan - Ishitani Shin-ichi
2Isobe Taizan - Kato Yasuhiro
3Isobe Taizan - Ishitani Shin-ichi
4Isobe Taizan - Kato Yasuhiro