Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Alapin_Variation
Moves: 1. e4 c5 2. c3 d6 3. d4 cxd4 4. cxd4 e6 5. Nf3 a6 6. Nc3 Nf6 7. h3 Be7 8. a3
O-O 9. Bd3 b5 10. Bg5 Bb7 11. Qd2 Nfd7 12. Be3 Nc6 13. O-O Rc8 14. Rac1 Na5 15.
Bc2 Nc4 16. Qd3 Nxe3 17. fxe3 Nb6 18. e5 dxe5 *
Position (FEN): 2rq1rk1/1b2bppp/pn2p3/1p2p3/3P4/P1NQPN1P/1PB3P1/2R2RK1 w - - 0 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1046
Best move: Qxh7#