Albin Countergambit, Lasker Trap
The Lasker Trap is a chess opening trap in the Albin Countergambit, named after Emanuel Lasker, although it was first noted by Serafino Dubois. It is unusual in that it features an underpromotion as early as the seventh move.Analysis
1. d4 d5 2. c4 e5
3. dxe5 d4
4. e3?
4... Bb4+ 5. Bd2 dxe3!
6. Bxb4??
6... exf2+
7. Ke2 fxg1=N+!
8. Ke1 Qh4+ 9. Kd2
9... Nc6
