Fishing Pole Trap
Open the h-file against the king
The attacking idea
Offer the knight, open the h-file, and bring the queen toward h2.
The temptation
Pushing f3 to drive the pawn away leaves g3 available and cuts off the king's escape.
If they defend
Challenge the centre with d4 and develop instead of accepting the knight bait.
Accurate defence can leave the attacker behind in material or development.
They take the bait
1. e4 1… e5 2. Nf3 2… Nc6 3. Bb5 3… Nf6 4. O-O 4… Ng4 5. h3 5… h5 6. hxg4 6… hxg4 7. Ne1 7… Qh4 8. f3 8… g3 9. d3 9… Qh2#
They defend
1. e4 1… e5 2. Nf3 2… Nc6 3. Bb5 3… Nf6 4. O-O 4… Ng4 5. h3 5… h5 6. d4 6… exd4 7. Bxc6 7… dxc6 8. Qxd4