Looks like a free bishop to me with Bc4. No need to trade queens. Notice that c4 is also covered by your protected knight so black's Q is lost if he captures the bishop on c4. Please don't challenge me though; I'm retired from playing chess (too stressful...sigh).
Puzzle Problem Explained
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In this puzzle, IDK which move I should play as the best. In this case, I played Qxd5, knowing that both queen and bishop are pinned in the same diagonal, but chess.com determined that my answer is incorrect. They showed that Bc4 is the correct solution, to be honest.
And I discovered another solution here again. I guessed my move Qxd5 should be a correct answer to this solution, as well as Bc4. Do anybody agrees with my opinion to this problem? Just LMK with your own ideas and explanations. The first one to comment below will be requested a random daily challenge!