Games played since 2014 year by
Jun Koyama
(Tokyo, Japan) in this fuseki
2
3
1
4
5
2
b
w
+
 
 
=
 
 
-
1
1
?
 
 
1
Kamiya Shunsuke - Koyama Jun
2
Koyama Jun - Nakamura Shigeru
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