A world to remember
I don't like these kind of puzzles because the tables are even and the position is set for my turn to win over some pieces or a position, I like more those puzzles where I'm underpieced or underpositioned and I must think my way through the board to win pieces or get the better position out of them but still, this puzzle was fun to solve because you reach checkmate in a smart way.
The answer is as follows, but I still think there was a way to trade Queens or at least keep the white Queen while trading pieces, what do you think?