Masayuki Koyama
(Japan, Tokyo) prefer positions after 5 moves
All years
3
5
2
4
1
2
b
w
+
=
-
2
?
2
5
1
3
4
1
b
w
+
=
-
1
?
2
3
1
4
5
1
b
w
+
1
=
-
?
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