Chess puzzle (Checkmate)
Opening: Indian_Defense, Indian_Defense_Other_variations
Moves: 1. d4 Nf6 2. Bf4 c5 3. e3 g6 4. Nf3 Bg7 5. Nc3 O-O 6. e4 cxd4 7. Nxd4 Nc6 8.
Nb3 d6 9. Qd2 Be6 10. Bh6 a5 11. Bxg7 Kxg7 12. f3 a4 13. Nd4 a3 14. b3 Qa5 15.
O-O-O Rac8 16. Nce2 Qe5 17. Nxc6 *
Position (FEN): 2r2r2/1p2ppkp/2Npbnp1/4q3/4P3/pP3P2/P1PQN1PP/2KR1B1R b - - 0 17
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 527
Best move: Qa1#