Chess puzzle (Checkmate)
Opening: Ruy_Lopez, Ruy_Lopez_Steinitz_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bg4 5. dxe5 dxe5 6. Qxd8+ Rxd8 7. Be3 Ra8
8. Nc3 Bxf3 9. gxf3 Ne7 10. O-O-O a6 11. Ba4 b5 12. Bb3 g6 13. Nd5 Rc8 *
Position (FEN): 2r1kb1r/2p1np1p/p1n3p1/1p1Np3/4P3/1B2BP2/PPP2P1P/2KR3R w k - 2 14
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1192
Best move: Nf6#