Koji Kase (Japan, unknown) prefer positions after 5 moves

All yearsLast ten years
52
1
3
4
1bw
+  
=  
- 1
?  
52
1
3
4
1bw
+  
=  
- 1
?  
42
1
3
5
1bw
+  
=  
-1 
?  
42
1
3
5
1bw
+  
=  
-1 
?