Chess puzzle (Checkmate)
Opening: Ruy_Lopez, Ruy_Lopez_Berlin_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. O-O a6 6. Bxc6 dxc6 7. Nxe5 Bd6 8.
Nf3 Bg4 9. h3 Bxf3 10. Qxf3 Qe7 11. b3 Qe5 12. c3 *
Position (FEN): r3k2r/1pp2ppp/p1pb1n2/4q3/4P3/1PPP1Q1P/P4PP1/RNB2RK1 b kq - 0 12
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 773
Best move: Qh2#