Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Modern_Variations
Moves: 1. e4 c5 2. Nf3 d6 3. Bc4 Nc6 4. c3 e5 5. O-O Nf6 6. Bxf7+ Kxf7 7. Ng5+ Kg8 8.
f4 Be7 9. fxe5 dxe5 10. d3 Nd7 11. Qb3+ c4 *
Position (FEN): r1bq2kr/pp1nb1pp/2n5/4p1N1/2p1P3/1QPP4/PP4PP/RNB2RK1 w - - 0 12
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 829
Best move: Qxc4#