Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Cozio_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. c3 a6 5. Ba4 b5 6. Bb3 Bb7 7. d4 exd4 8.
cxd4 d5 9. Nc3 dxe4 *
Position (FEN): r2qkb1r/1bp1nppp/p1n5/1p6/3Pp3/1BN2N2/PP3PPP/R1BQK2R w KQkq - 0 10
White to move.
Themes:  Opening  
Puzzle rating: 2130
Best move: Ng5