Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+ Ke6
8. Nc3 Ne7 9. O-O c6 10. d4 Kd6 11. dxe5+ Kc7 12. Rd1 Be6 13. Bg5 Qd7 14. Nxd5+
Nxd5 15. Rd2 Be7 16. Bf4 g5 17. Bg3 Raf8 18. Qe4 Kc8 19. Rad1 Rf7 20. Bxd5 *
Position (FEN): 2k4r/pp1qbr1p/2p1b3/3BP1p1/4Q3/6B1/PPPR1PPP/3R2K1 b - - 0 20
Black to move.
Themes:  Middlegame  
Puzzle rating: 1730
Best move: cxd5