What would you play if you were black?

Anyone? =P

First of all...is this game ongoing? second of all... I would move Bc5+ (Highlight the space there).

No, this isn't an ongoing game. This is from a 3 minute game that I watched.

I'll give a hint (highlight): Black is played by a chess engine.

I agree with dc1985 - Bc5+ looks like a reasonable move, but I couldn't find any continuation that did anything for black after that. If there's a winning line for black, it's way above my level . . .

I think I have it. Bc5+ Kh1 Rxh2+! Kxh2 Qxb2+ Kh1 Bf5! where the threat on the Queen and Rh8# appears to be decisive. If that's it, cool puzzle!

Well, the move has to deal with white's immediate threat of Qg6# for a start.

That restricts candidates to either a checking move,a move defending g6 or a move blocking the white queen's line to g6.

Bc5+ looks best to me - and seems to lead to material gain for black.

EDIT: And SirDavid beat me to it. Of course 23. Rf2 could be a better defence

Ahhh! SirDavid, texaspete, you got it! The surprising thing is that various "defensive" moves by white don't work (see Move List). Well done, and good puzzle!

Bc5

correction, Bc5+

good one