How to save a lost game with a brilliant combination?

This is a position from a game I played today. White is down a lot of material, but tries to keep the game going and attack the opponent's king. There's only one winning move, all the rest are losing. Try to find it yourself ;)

WHITE TO MOVE AND WIN


If you found it, congratulations! Here you can see the whole combination:



In fact, declining the sacrifice also loses, but the lines may not be as easy to see.

You can't save a game from a lost position, your opponent just blew away his huge advantage. Anyway, that was still a nice (but very lucky) combination

Wow, very nice.

I managed to find it, very nice game!