Chess puzzle (Checkmate)
Opening: French_Defense, French_Defense_MacCutcheon_Variation
Moves: 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. exd5 Qxd5 6. Bxf6 gxf6 7. Qd2 Bxc3
8. Qxc3 Nc6 9. O-O-O Bd7 10. Kb1 O-O-O 11. Nf3 e5 12. dxe5 *
Position (FEN): 2kr3r/pppb1p1p/2n2p2/3qP3/8/2Q2N2/PPP2PPP/1K1R1B1R b - - 0 12
Black to move.
Themes: Hanging Piece, Queenside Attack Middlegame Mate in 1 
Puzzle rating: 902
Best move: Qxd1#