Chess puzzle (Advantage)
Opening: Zukertort_Opening, Zukertort_Opening_Sicilian_Invitation
Moves: 1. Nf3 c5 2. b3 e6 3. Bb2 Qc7 4. e4 d6 5. Be2 a6 6. O-O Nd7 7. c4 e5 8. Nc3
Ngf6 9. h3 h6 10. Nh2 g6 11. d3 Bg7 12. Qd2 b6 13. f4 exf4 14. Qxf4 O-O 15. Nd5
*
Position (FEN): r1b2rk1/2qn1pb1/pp1p1npp/2pN4/2P1PQ2/1P1P3P/PB2B1PN/R4RK1 b - - 2 15
Black to move.
Themes:  Middlegame  
Puzzle rating: 1305
Best move: Nxd5