Any gambits that sacrifice a knight or bishop, or more?

i only know one: the Jerome gambit

Halloween gambit.

It's actually  not as bad as you might think. As black I don't even play the main lines against it because it's too annoying.

Technically, 1.e4 e5 2.Nf3 f6 3.Nxe5 counts.

Of course, the interesting ones sacrifice before the opponent messes up.

jerome!

At a lower level you quote often get players saccing the Knight to prevent a castle. They hope you don't know how to defend against an immediate attack on the king.

Moeller attack temporarily sacrifices a piece.

5.d4 is not good, Black gets a clear advantage.

White's only viable move is 5.Nc3!

Nakhmanson Gambit and Fried Liver Attack.

Tennison gambit

How does black get a clear advantage after 5. d4? Its my understanding white is just a pawn up after 5...Nxe4 6. Qh5+ since it doesnt seem possible to defend the knight. Or is it some other move(besides 5..Nxe4) that would give black the advantage?

Then it blunders a knight and black wont play that...

Yes...that was my point, My question was if 5..Nxe4 isnt playable, what is the refutation of 5. d4? compared to 5. Nc3 Sorry if my question wasnt clear.

The point behind 5.Nc3! is not protecting the e4 pawn, but rather preventing ...d5 by Black.

5.d4 c5! 6.dxc5 d5! 7.e5 Ng4 is complex, but it has been thoroughly analysed as  clear advantage for Black- actually in chess practice white doesn't even score 15% from here.

5.Nc3! prevents Black from deconstructing white's pride (which is his massive center). It gives Black some extra options, but IMO white has adequatre, or almost adequate compensation in all the major lines. It is no coincidence that WC Topalov picked 5.Nc3 at his encounter against WC Kramnik (the game ended in a draw after a very interesting fight).

Lots in the SIcilian, Nd5, bxe6, nxe6, bxb5 etc

tennison gambit, halloween gambit

How bout the Double Muzio, that sacrifices a Knight and a Bishop!

Botez gambit 

hehehe

thanks!