Chess puzzle (Checkmate)
Opening: Alekhine_Defense, Alekhine_Defense_Modern_Variation
Moves: 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 c6 6. exd6 Qxd6 7. O-O Nd7 8. h3
Bh5 9. c3 O-O-O 10. Nbd2 Nf4 11. Bc4 Qg6 12. Nh4 Qg5 13. Ndf3 Bxf3 14. Qxf3
Qxh4 15. Bxf4 g5 16. Qxc6+ bxc6 *
Position (FEN): 2kr1b1r/p2npp1p/2p5/6p1/2BP1B1q/2P4P/PP3PP1/R4RK1 w - - 0 17
White to move.
Themes:  Middlegame Boden's Mate, Mate in 1 
Puzzle rating: 701
Best move: Ba6#