A. Gostev (Russia, Kursk) prefer positions after 5 moves

All years
425
1
3
2bw
+ 1
=  
- 1
?  
3
425
1
1bw
+  
=  
-1 
?  
53
2
1
4
1bw
+  
= 1
-  
?  
5
43
2
1
1bw
+1 
=  
-  
?