A bit of tactics

This was a bullet game where my opponent played a strongly doubtful queen sacrifice, but there was nevertheless a charming tactical moment.

1...Qc4

2.Bf3 Qxc2

3.Rc1

Can you see how to continue?

3...Rxh3! (if 4.gxh3 Qh2#)

4.Kg1 Rh1+

5.Kxh1 Qh7

6.Kg1 Qh2#

The funny travel of the queen from c6-c4-c2-h7-h2.

Here you can find the entire game: https://lichess.org/GDPp33nj/black#45