Chess puzzle (Checkmate)
Opening: Nimzowitsch_Defense, Nimzowitsch_Defense_Scandinavian_Variation
Moves: 1. e4 Nc6 2. d4 d5 3. exd5 Qxd5 4. Nf3 Bg4 5. Be2 Nf6 6. Nc3 Qh5 7. Be3 O-O-O
8. O-O e6 9. Qd2 Bd6 10. Bg5 Bxf3 11. Bxf3 *
Position (FEN): 2kr3r/ppp2ppp/2nbpn2/6Bq/3P4/2N2B2/PPPQ1PPP/R4RK1 b - - 0 11
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1021
Best move: Qxh2#