Chess puzzle (Checkmate)
Opening: Vienna_Game, Vienna_Game_Anderssen_Defense
Moves: 1. e4 e5 2. Nc3 Bc5 3. Nf3 c6 4. Na4 b6 5. Nxc5 bxc5 6. Nxe5 Nf6 7. f3 Nh5 8.
Nc4 Qh4+ 9. Ke2 Nf4+ 10. Ke3 d5 11. Nd6+ Kd7 12. Nxc8 *
Position (FEN): rnN4r/p2k1ppp/2p5/2pp4/4Pn1q/4KP2/PPPP2PP/R1BQ1B1R b - - 0 12
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1459
Best move: d4#