Weiguo Zhang (China, unknown) prefer positions after 5 moves

All years
4
2
51
3
1bw
+  
=  
- 1
?  
2
513
4
1bw
+1 
=  
-  
?  
2
134
5
1bw
+  
=  
- 1
?  
4
2
1
35
1bw
+  
=  
- 1
?