Chess puzzle (Checkmate)
Opening: Slav_Defense, Slav_Defense_Other_variations
Moves: 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bg5 Ne4 5. Nxe4 dxe4 6. e3 Qa5+ 7. Qd2 Qxg5 8.
h4 Qf6 9. Nh3 e5 10. dxe5 Qxe5 11. Nf4 a5 12. O-O-O Bb4 *
Position (FEN): rnb1k2r/1p3ppp/2p5/p3q3/1bP1pN1P/4P3/PP1Q1PP1/2KR1B1R w kq - 2 13
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1194
Best move: Qd8#