This is a game played by Tal (playing white) in a simul game, I thought it was an interesting position that lead to an awesome combination. It's white to move, give it a swing guys! Edit:Technically this position can be a mate in four. (Sorry about the mix up, but I fixed the board, the king on e8 was supposed to be black.)

Not sure if I calculated correctly.

Give me a tip
Is it a mate in four?
Or is "White gets huge material advantage"?

Hm, yesterday my chess software told me that it was a checkmate in four, but today it doesn't. Ah well, from this position white can win very easily, and depending after black's response to white's move white can promote that pawn. I'll post the spoilers now so you can check.

That spoiler was how the rest of the game played out, blacks alternate possibility which would lead to his demise is.
23.Qxf2 Qxf2 24.Nxc7+ Kf8 25.e7+ Kg8 26.e8=Q+, which is an easy win for white.