1.Rbb1? a very natural move and the one White played in the game but after 1...c5! Black opens the diagonal, and the bishop becomes a monster! Black consolidates the advantage and Salgado went on to win this game.
The knight finds a nice route via b3 and c5, putting a lot of pressure against e6, and with this along with the possibility of pushing the pawn to a5 to reinforce the b6-pawn, the exchange is more than compensated for!
Dual purpose. First of all, it attacks the rook with tempo; second, it blocks the diagonal for the queen, which is now very passive.
A very strong move, supporting the d6-square, where White plans to place a rook!
Capping the d-file and the e7-bishop. If Black captures the rook, White gets a protected passed pawn and a lethal bishop on the main diagonal!
23...Bxd6?! 24.Ng5! g6 25.exd6 with a decisive advantage! Look at that bishop on b2!
Fantastic positional sacrifice by Nepo. Black will take on d4, getting a very important central pawn. Once d4 is off the board, the c5 square is available for the dark-squared bishop and the bishop pair is extremely dangerous for white. Black has another rook to use the g-file and has total domination of the dark squares.
Bishop pair and two pawns for the rook. Black is not even down material anymore!