You're trying to use an engine to solve a strategic problem.
The first thing you have to understand is that this is a "strategic" problem, and not a tactic, so an engine is not always going to give you the correct response.
Lets look at your move, and hopefully we both can learn something.
...Ba6 Yea it stops the pawn, but it also ties down a piece to nothing but defense. That's not what your pieces are meant to be used for if all possible.
White has 2 passed pawns, space advantage, and more active pieces. Ask yourself: "How does my move solve any, or all of these issues?"
Now...this is just my opinion, and hopefully someone smarter will chime in. But this is what i would play:
1...Ra6 Now you're threatening the undefended bishop (One of the two defenders of the passed pawns)
Now white has a choice. Defend, retreat, counterattack. Lets look at each.
Defend with 2.Ra1 Ra3 3.Ra3 Nb4 Now black has taken care of whites passed pawns, has the bishop pair, and now his own passed d-pawn is looking good.
Retreat with 2.Bc1 Now the underdefended (yea...i made up a word) b-pawn is weak, attacked, and there are many different ways to go about this line which i have no desire to type that much.
Counterattack with? Nothing.
Dear All,
I am working on the game strategy segment under Lessons provided by Chess.com.
During one such lesson Gligoric vs Szabo I tried to make move to resolve the problem and it was shown incorrect by the website.
Interestingly I set up the position in Analysis mode and made the same move. The engine is showing this move as the best move.
I request you all kindly describe the problem