Yaroslav Shtyrov (Russia, Zhigulyovsk) prefer positions after 5 moves

All years
5
2
134
1bw
+  
=  
- 1
?  
425
1
3
1bw
+1 
=  
-  
?  
542
1
3
1bw
+  
=  
-1 
?  
542
1
3
1bw
+  
=  
- 1
?