The Kieninger Trap is a chess opening trap in the Budapest Gambit named after the German International Master Georg Kieninger, who used it in an offhand game against Godai at Vienna in 1925. It is one of the most frequently seen opening traps. ==Details== 1. d4 Nf6 2. c4 e5!? 3. dxe5 Ng4 4. Bf4 Nc6 5. Nf3 Bb4+ 6. Nbd2 Qe7 7. a3 Ngxe5! (see diagram...