More moves required !

 An OTB game of mine from last night shows a tactic missed by both players, although it should have been clear to both, especially Black.

Black to play

As white, I clearly expected that Black had little option but to exchange Queens.

Black had other ideas.

However, just like many ChessTempo problems which are tagged with "more moves needed", finding the first move does not prove that you know the full answer, which is exactly what both players missed.