Chess puzzle (Checkmate)
Opening: Vant_Kruijs_Opening, Vant_Kruijs_Opening_Other_variations
Moves: 1. e3 c5 2. b3 d6 3. Bb2 Nc6 4. Bb5 a6 5. Bxc6+ bxc6 6. Qf3 Nf6 7. Qxc6+ Bd7 8.
Qf3 e5 9. d4 Bg4 10. Qg3 h5 11. dxe5 h4 12. Qf4 dxe5 13. Bxe5 *
Position (FEN): r2qkb1r/5pp1/p4n2/2p1B3/5Qbp/1P2P3/P1P2PPP/RN2K1NR b KQkq - 0 13
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 643
Best move: Qd1#