Chess puzzle (Crushing)
Opening: Ruy_Lopez, Ruy_Lopez_Berlin_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Bxc6 bxc6 5. Nxe5 Nxe4 6. Qf3 Nf6 7. O-O Bd6
8. Re1 O-O 9. Nc3 Re8 10. Nd3 Ba6 11. Rxe8+ Qxe8 12. b3 *
Position (FEN): r3q1k1/p1pp1ppp/b1pb1n2/8/8/1PNN1Q2/P1PP1PPP/R1B3K1 b - - 0 12
Black to move.
Themes:  Middlegame  
Puzzle rating: 1129
Best move: Bxd3