Chess puzzle (Crushing)
Opening: Ruy_Lopez, Ruy_Lopez_Morphy_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. O-O Nf6 7. d4 Nxe4 8. dxe5
dxe5 9. Re1 Nf6 10. Bxc6 Bxc6 11. Nxe5 Qxd1 12. Rxd1 Bd6 13. Nxc6 bxc6 14. h3
O-O 15. a3 Rfd8 16. Bd2 Ne4 17. Kf1 Bc5 18. f3 *
Position (FEN): r2r2k1/2p2ppp/p1p5/2b5/4n3/P1P2P1P/1P1B2P1/RN1R1K2 b - - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1133
Best move: Ng3+