Chess puzzle (Checkmate)
Opening: Semi-Slav_Defense, Semi-Slav_Defense_Other_variations
Moves: 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Be7 6. e3 Nbd7 7. Bd3 h6 8. Bh4
O-O 9. O-O b6 10. cxd5 exd5 11. Bc2 Bb7 12. Qd3 c5 13. b3 Rc8 14. Ne5 cxd4 15.
exd4 Qc7 16. Nxd7 Qxd7 17. Bxf6 Bxf6 *
Position (FEN): 2r2rk1/pb1q1pp1/1p3b1p/3p4/3P4/1PNQ4/P1B2PPP/R4RK1 w - - 0 18
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 434
Best move: Qh7#