Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_London_System
Moves: 1. d4 d5 2. Bf4 Nf6 3. Nf3 e6 4. e3 c5 5. dxc5 Bxc5 6. Nc3 Nc6 7. Bb5 O-O 8.
O-O a6 9. Bxc6 bxc6 10. Bg5 h6 11. Bh4 Be7 12. Ne5 Qd6 13. Ng4 Nxg4 14. Bxe7 *
Position (FEN): r1b2rk1/4Bpp1/p1pqp2p/3p4/6n1/2N1P3/PPP2PPP/R2Q1RK1 b - - 0 14
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 840
Best move: Qxh2#