Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Steinitz_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. c3 Nf6 5. Qe2 g6 6. d4 Bg7 7. d5 a6 8. Ba4 b5
9. Bxb5 axb5 10. Qxb5 O-O 11. Qxc6 Bd7 12. Qc4 Rb8 13. b3 *
Position (FEN): 1r1q1rk1/2pb1pbp/3p1np1/3Pp3/2Q1P3/1PP2N2/P4PPP/RNB1K2R b KQ - 0 13
Black to move.
Themes:  Opening  
Puzzle rating: 1252
Best move: Bb5