Chess puzzle (Advantage)
Opening: Four_Knights_Game, Four_Knights_Game_Scotch_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 d6 5. d5 Ne7 6. Bb5+ Bd7 7. Bxd7+ Nxd7 8.
O-O Ng6 9. Ne2 Be7 10. c4 O-O 11. Be3 Nf6 12. Nc3 Ng4 13. Qd2 Qd7 14. h3 Nf6
15. b4 c6 16. a4 a6 17. c5 Nh5 18. cxd6 Bxd6 19. Bc5 Ngf4 *
Position (FEN): r4rk1/1p1q1ppp/p1pb4/2BPp2n/PP2Pn2/2N2N1P/3Q1PP1/R4RK1 w - - 2 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1861
Best move: dxc6