Chess puzzle (Advantage)
Opening: Zukertort_Opening, Zukertort_Opening_Quiet_System
Moves: 1. Nf3 Nf6 2. e3 Nc6 3. Be2 e5 4. d3 d6 5. Nbd2 g6 6. b3 Bg7 7. Bb2 a6 8. O-O
b5 9. a3 Bb7 10. Re1 O-O 11. c4 Ne7 12. d4 exd4 13. Bxd4 Ne4 14. Bxg7 Kxg7 15.
cxb5 axb5 *
Position (FEN): r2q1r2/1bp1npkp/3p2p1/1p6/4n3/PP2PN2/3NBPPP/R2QR1K1 w - - 0 16
White to move.
Themes:  Middlegame  
Puzzle rating: 1070
Best move: Nxe4