5r2/8/1R6/ppk3p1/2N3P1/P4b2/1K6/5B2 w - - 0 1
Really, how many people could imagine that position after 6.Ka2 and understand that the knight dominated the rook that way? How many people might well have gotten there and just figured it was no good for white?
It is harder in terms of imagination, Alena. The stalemate threat forces the solver to find the domination theme that arises after 5.Bb5. For example- you didn't find it until I told you to look for it, so it isn't easier, right?
In my opinion the main line is simpler than V-1.
The main line is 1.Rb5 Kb5 2.Ne5 Be2!? This provides black the stingiest defense.
It's a winning position for white. White should exchange the knight for the black pawn and promote the white pawn. White mustn't let the black king control b7.