Chess puzzle (Checkmate)
Opening: Alekhine_Defense, Alekhine_Defense_Scandinavian_Variation
Moves: 1. e4 Nf6 2. Nc3 d5 3. e5 d4 4. exf6 dxc3 5. bxc3 Nc6 6. Qe2 Be6 7. Nf3 exf6 8.
Qb5 Rb8 9. Nd4 a6 10. Qd3 Nxd4 11. cxd4 Bd6 12. d5 Bg4 13. h3 Bh5 14. Qe3+ Be5
15. d4 Qxd5 16. dxe5 *
Position (FEN): 1r2k2r/1pp2ppp/p4p2/3qP2b/8/4Q2P/P1P2PP1/R1B1KB1R b KQk - 0 16
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1144
Best move: Qd1#