Chess puzzle (Equality)
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Qc2 Nc6 7. a3 Bf5 8. Bd3
Bxd3 9. Qxd3 dxc4 10. Qxc4 e6 11. O-O Ne7 12. Rd1 Nfd5 13. Bd2 Rc8 14. Rac1 b6
15. Nb5 a6 16. Na7 Ra8 17. Nc6 Nxc6 18. Qxc6 Qd6 19. e4 Qxc6 20. Rxc6 Nf6 21.
e5 Nd5 22. Ng5 Rac8 23. f4 Rfd8 24. Bc1 Ne7 25. Rc3 Nf5 26. Rcd3 Bf8 27. g4
Nxd4 28. Rxd4 Bc5 29. Be3 Rd7 30. b4 *
Position (FEN): 2r3k1/2pr1p1p/pp2p1p1/2b1P1N1/1P1R1PP1/P3B3/7P/3R2K1 b - - 0 30
Black to move.
Themes:  Middlegame  
Puzzle rating: 1503
Best move: Bxd4