Chess puzzle (Checkmate)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Exchange_Variation
Moves: 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nc6 5. Be2 Nf6 6. h3 Bf5 7. O-O e6 8. c4
Bd6 9. c5 Bc7 10. b4 O-O 11. b5 Ne7 12. a4 b6 13. c6 Be4 14. Ng5 Qd6 15. Nxe4 *
Position (FEN): r4rk1/p1b1nppp/1pPqpn2/1P1p4/P2PN3/7P/4BPP1/RNBQ1RK1 b - - 0 15
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1266
Best move: Qh2#