Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Morphy_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. c3 a6 5. Ba4 b5 6. Bb3 Nf6 7. d3 Be7 8. Ng5
O-O 9. O-O d5 10. exd5 Nxd5 11. Bxd5 *
Position (FEN): r1bq1rk1/2p1bppp/p1n5/1p1Bp1N1/8/2PP4/PP3PPP/RNBQ1RK1 b - - 0 11
Black to move.
Themes:  Opening  
Puzzle rating: 1865
Best move: Qxd5