Chess puzzle (Checkmate)
Opening: Englund_Gambit_Complex, Englund_Gambit_Complex_Englund_Gambit
Moves: 1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 4. Bf4 Qb4+ 5. Bd2 Qxb2 6. Nc3 Bb4 7. Rb1 Qa3
8. Nd5 Bxd2+ 9. Qxd2 Kd8 10. e4 Qxa2 11. Rd1 Nge7 12. Qg5 g6 13. Bb5 Qa5+ 14.
Rd2 Qxb5 15. Nd4 Qb1+ 16. Rd1 Qa2 17. Nxc6+ bxc6 *
Position (FEN): r1bk3r/p1ppnp1p/2p3p1/3NP1Q1/4P3/8/q1P2PPP/3RK2R w K - 0 18
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 543
Best move: Qxe7#