Chess puzzle (Checkmate)
Opening: Scotch_Game, Scotch_Game_Potter_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Nc3 d6 7. Qe2 Nge7 8.
Be3 O-O 9. O-O-O Be6 10. f3 Ne5 11. h4 Nc4 12. Bxb6 axb6 13. g4 Ng6 14. Nd5
Bxd5 15. exd5 b5 16. a3 Qf6 17. g5 *
Position (FEN): r4rk1/1pp2ppp/3p1qn1/1p1P2P1/2n4P/PN3P2/1PP1Q3/2KR1B1R b - - 0 17
Black to move.
Themes: Queenside Attack Middlegame Mate in 1 
Puzzle rating: 1435
Best move: Qxb2#