Chess puzzle (Checkmate)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Exchange_Variation
Moves: 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Bg4 5. Bb5+ Nd7 6. O-O e6 7. c4 Nf6 8.
Nc3 dxc4 9. Bxc4 Be7 10. Qb3 O-O 11. Ne5 Qc7 12. Nxg4 Nxg4 13. Bxe6 *
Position (FEN): r4rk1/ppqnbppp/4B3/8/3P2n1/1QN5/PP3PPP/R1B2RK1 b - - 0 13
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 939
Best move: Qxh2#