ignaciokasevich wrote:
The engine is suggesting an illegal move:
The pawn can not move from b4 to A3
If white's previous move was a2-a4 it's a legal move called en passant.
https://support.chess.com/article/683-what-is-en-passant
The engine is suggesting an illegal move:
The pawn can not move from b4 to A3