Chess puzzle (Advantage)
Opening: Nimzo-Larsen_Attack, Nimzo-Larsen_Attack_Modern_Variation
Moves: 1. b3 e5 2. Bb2 Nc6 3. e3 a6 4. Nf3 e4 5. Nd4 Nxd4 6. Bxd4 c5 7. Bb2 b5 8. c4
b4 9. d4 Nf6 10. a3 Qa5 11. a4 d6 12. d5 Be7 13. Nd2 Bg4 14. Qc2 O-O 15. Nxe4
Nxe4 *
Position (FEN): r4rk1/4bppp/p2p4/q1pP4/PpP1n1b1/1P2P3/1BQ2PPP/R3KB1R w KQ - 0 16
White to move.
Themes:  Middlegame  
Puzzle rating: 679
Best move: Qxe4