Chess puzzle (Advantage)
Opening: Zukertort_Opening, Zukertort_Opening_Quiet_System
Moves: 1. Nf3 Nf6 2. e3 e6 3. c4 d5 4. Be2 Be7 5. cxd5 Nxd5 6. Qc2 Nd7 7. Nc3 Nb4 8.
Qb3 b6 9. a3 Nc6 10. Bb5 Bb7 11. Qc4 Na5 12. Bxd7+ Qxd7 13. Qb5 Bc6 14. Qe2 Nb3
15. Rb1 Nc5 16. b4 Nd3+ 17. Kf1 O-O-O 18. Nd4 Be4 *
Position (FEN): 2kr3r/p1pqbppp/1p2p3/8/1P1Nb3/P1NnP3/3PQPPP/1RB2K1R w - - 5 19
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1215
Best move: Nxe4