Puzzle Analysis

lichess.org/training/61268

In this puzzle, it says the best move is move my rook forward, and I end up winning a bishop, but if I move my bishop to the same square, won't I end up winning a rook, which is better?

This is my first time posting in the forum. I'm sorry if this is supposed to be posted somewhere else.

Oh, nevermind. I guess it must be too late at night. :-P

The rook is not trapped after Bc7

@archcorenth
Even if you would win the rook on d8 (Black to move and can play Rd8-e8) you would only win the exchange which equals to 2 points.
Winning a piece (a light piece : knight or bishop) however wins 3 points.
Also good to realize is that when you lose a piece (knight or bishop) you are really a piece down in numbers.
If you lose the exchange however, the number of light and heavy pieces of both players is still the same.
That is an important difference.