What would you play here as white?

Not from an actual game but a variation from what I thought at the time was an unsound sacrifice. 

1270-guy would play Qf1.

Idea is to bring it to b5 where it would attack the weak pawn on d5 and also allow the other rook to come to the c-file.

As kind of a bonus it also prevents blacks queen from getting to the more active square d3.

Offer a draw.

Congratulations... most annoying puzzle ever

When you sac a pawn to win a pawn it's not really much of a puzzle is it?

Rook in d6 with the aim of Queen in c6 ?

How about RD6 followed by QC6 putting pressure on the black N and threat of White Rook to E6 check etc.

This could have happened against an expert too =(  The position only appeared post-mortem when I went over if I were to sac on c6.  It's actually a double pawn sac (with an atrocious pawn structure) for the sake of activity.  Like a wise man once said piece activity compensates weaknesses.

23.e4!! is pretty complex, black has a knight for two pawns, in move 23 who stands better? 

In the actual game:

Look at the active compensation.  Black's weaknesses and holes remain, and white's pieces have easy access to them.  Black's chances lie with his queen placement and kingside majority, which are practical as white needs to play accurately to avoid a draw. 

gg

It's an instructive position, and a good puzzle I guess