Chess puzzle (Checkmate)
Opening: Semi-Slav_Defense, Semi-Slav_Defense_Accelerated_Move_Order
Moves: 1. d4 d5 2. c4 c6 3. Nc3 e6 4. cxd5 exd5 5. e3 Be6 6. Bd3 Bb4 7. Ne2 Nd7 8. O-O
Ne7 9. Kh1 O-O 10. f3 f5 11. Bd2 Ng6 12. Qc2 Bd6 13. e4 dxe4 14. fxe4 fxe4 15.
Rxf8+ Ndxf8 16. Nxe4 Bc7 17. Ng5 Qd6 18. Nxe6 *
Position (FEN): r4nk1/ppb3pp/2pqN1n1/8/3P4/3B4/PPQBN1PP/R6K b - - 0 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 576
Best move: Qxh2#