Chess puzzle (Checkmate)
Opening: French_Defense, French_Defense_Exchange_Variation
Moves: 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Bf4 Bd6 6. Bxd6 Qxd6 7. Nf3 O-O 8.
Bd3 Re8+ 9. Ne2 Bg4 10. Ne5 Nbd7 11. Nxg4 Nxg4 12. O-O *
Position (FEN): r3r1k1/pppn1ppp/3q4/3p4/3P2n1/3B4/PPP1NPPP/R2Q1RK1 b - - 1 12
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 859
Best move: Qxh2#