It seems like puzzle 103421 does not get a good solution. Although white wins the exchange and ends up with a queen vs 2 bishops the position could turn out to be a draw as black may have a fortress after 34...g5. I made a study showing some of the lines here :
So what?
First of all there is a 350 centipawn advantage and the point of puzzles is to find the best move, it could be to force a draw in a losing position, gaining material, checkmate or another 416 other things. It does not always have to lead to an immediate win.
Secondly, in the study you have only started the analysis tree after Qf2 Bf8, Qc2+, whereas Stockfish recommends Q1.
Lastly, what move would you have played in the position?
