Evgeny Dukhno (Russia, Nizhny Novgorod) prefer positions after 5 moves

All years
4
2
1
35
1bw
+  
=  
-1 
?  
425
1
3
1bw
+  
=  
- 1
?  
23
14
5
1bw
+  
=  
- 1
?  
23
14
5
1bw
+  
=  
- 1
?