Zhaoping Rao (China, Tianjin) prefer positions after 5 moves

All years
35
42
1
2bw
+  
=  
-2 
?  
3
42
51
1bw
+ 1
=  
-  
?  
542
1
3
1bw
+1 
=  
-  
?  
3
542
1
1bw
+ 1
=  
-  
?