Chess puzzle (Equality)
Moves: 1. c4 e5 2. e4 Nf6 3. Nc3 Bc5 4. d3 Nc6 5. Nf3 d6 6. Be2 Qe7 7. O-O Bg4 8. Nd5
Nxd5 9. exd5 Bxf3 10. Bxf3 Nd4 11. Be3 f5 12. a3 O-O-O 13. b4 Bb6 14. a4 a6 15.
Bxd4 *
Position (FEN): 2kr3r/1pp1q1pp/pb1p4/3Ppp2/PPPB4/3P1B2/5PPP/R2Q1RK1 b - - 0 15
Black to move.
Themes:  Middlegame  
Puzzle rating: 1575
Best move: Bxd4