Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Classical_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. Bxc6 dxc6 5. d4 exd4 6. a3 Nf6 7. b4 Bb6 8.
Bg5 O-O 9. e5 Re8 10. O-O Bg4 *
Position (FEN): r2qr1k1/ppp2ppp/1bp2n2/4P1B1/1P1p2b1/P4N2/2P2PPP/RN1Q1RK1 w - - 3 11
White to move.
Themes:  Middlegame  
Puzzle rating: 1502
Best move: exf6