Chess puzzle (Checkmate)
Opening: Englund_Gambit_Declined, Englund_Gambit_Declined_Reversed_Krebs
Moves: 1. d4 e5 2. Nf3 e4 3. Nfd2 d5 4. Nc3 Bf5 5. f3 e3 6. Ndb1 Qg5 7. Nxd5 Bxc2 8.
Nxc7+ Kd8 9. Qxc2 Bb4+ 10. Kd1 Qh4 11. Bxe3 *
Position (FEN): rn1k2nr/ppN2ppp/8/8/1b1P3q/4BP2/PPQ1P1PP/RN1K1B1R b - - 0 11
Black to move.
Themes:  Opening Mate in 1 
Puzzle rating: 600
Best move: Qe1#