Ning Yu (China, Beijing) prefer positions after 5 moves

All yearsLast ten years
542
1
1bw
+  
=  
- 1
?  
542
1
1bw
+  
=  
- 1
?  
2
51
3
1bw
+  
=  
- 1
?  
2
51
3
1bw
+  
=  
- 1
?  
52
41
1bw
+  
=  
- 1
?  
52
41
1bw
+  
=  
- 1
?