Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Bird_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. d3 a6 6. Ba4 b5 7. Bb3 d6 8. O-O
Nf6 9. e5 dxe5 10. Re1 Bd6 11. Bf4 Nd7 12. Bxe5 O-O 13. Bxd4 *
Position (FEN): r1bq1rk1/2pn1ppp/p2b4/1p6/3B4/1B1P4/PPP2PPP/RN1QR1K1 b - - 0 13
Black to move.
Themes:  Opening  
Puzzle rating: 1745
Best move: Qh4