Chess puzzle (Checkmate)
Opening: Alekhine_Defense, Alekhine_Defense_Samisch_Attack
Moves: 1. e4 Nf6 2. e5 Nd5 3. Nc3 Nb6 4. a4 d6 5. a5 N6d7 6. e6 fxe6 7. d4 Nf6 8. g4
h6 9. Bd3 e5 10. Bg6+ Kd7 11. d5 e6 12. dxe6+ Kxe6 13. f4 Nc6 14. g5 hxg5 15.
fxg5 Ne8 16. Qg4+ Ke7 *
Position (FEN): r1bqnb1r/ppp1k1p1/2np2B1/P3p1P1/6Q1/2N5/1PP4P/R1B1K1NR w KQ - 3 17
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 950
Best move: Nd5#