Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Alapin_Variation
Moves: 1. e4 c5 2. c3 Nc6 3. d4 cxd4 4. cxd4 d5 5. e5 f6 6. f4 h6 7. Nf3 e6 8. Nfd2
Nxd4 9. Qh5+ Ke7 10. b3 Nc2+ 11. Kd1 Nxa1 12. Bb5 Bd7 *
Position (FEN): r2q1bnr/pp1bk1p1/4pp1p/1B1pP2Q/5P2/1P6/P2N2PP/nNBK3R w - - 2 13
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1662
Best move: Ba3#