Chess puzzle (Advantage)
Opening: English_Defense, English_Defense_Other_variations
Moves: 1. d4 b6 2. d5 Bb7 3. c4 g6 4. e4 Bg7 5. Nc3 d6 6. Bd3 Nd7 7. Nge2 Nc5 8. Bc2
Qd7 9. b4 Na6 10. Ba4 c6 11. dxc6 Bxc6 12. b5 Bb7 13. bxa6 Bc6 14. Bxc6 Qxc6
15. Qd5 Qc8 16. Qb7 Nf6 17. Nd5 *
Position (FEN): r1q1k2r/pQ2ppbp/Pp1p1np1/3N4/2P1P3/8/P3NPPP/R1B1K2R b KQkq - 5 17
Black to move.
Themes:  Middlegame  
Puzzle rating: 1450
Best move: Nxd5