Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Morphy_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Nc3 b5 6. Bb3 Bc5 7. O-O O-O 8. a3
Bb7 9. Nd5 Nxd5 10. Bxd5 Rb8 11. d3 Re8 *
Position (FEN): 1r1qr1k1/1bpp1ppp/p1n5/1pbBp3/4P3/P2P1N2/1PP2PPP/R1BQ1RK1 w - - 1 12
White to move.
Themes:  Opening  
Puzzle rating: 1745
Best move: Ng5