Englund Gambit
The back rank has no escape
The attacking idea
Use checks and a bishop capture to clear the queen's path to c1.
The temptation
Developing the bishop against the queen allows a forcing attack on the king.
If they defend
Develop the knight and attack the queen with the rook. White keeps the easier position.
Accurate defence can leave the attacker behind in material or development.
They take the bait
1. d4 1… e5 2. dxe5 2… Nc6 3. Nf3 3… Qe7 4. Bf4 4… Qb4+ 5. Bd2 5… Qxb2 6. Bc3 6… Bb4 7. Qd2 7… Bxc3 8. Qxc3 8… Qc1#
They defend
1. d4 1… e5 2. dxe5 2… Nc6 3. Nf3 3… Qe7 4. Bf4 4… Qb4+ 5. Bd2 5… Qxb2 6. Nc3 6… Bb4 7. Rb1 7… Qa3 8. Rb3 8… Qa5