Edinburgh Trap

In Edinburgh Trap, the Black Knight confuses the enemy, and sets a trap for a mate.

1. d4, Nf6
2. Nd2 ....

A bad position for the Knight.  Now Black offers a pawn as bait.....

2. .... e5
3. dxe5, Ng4

It would look as though the Knight wants to recapture the e5 pawn, but actually goes for the opponent Queen.

4. h3, Ne3!!
5. fxe3, Qh4 mate.