Chess puzzle (Advantage)
Opening: Nimzo-Larsen_Attack, Nimzo-Larsen_Attack_Polish_Variation
Moves: 1. b3 b5 2. e3 a6 3. f4 Bb7 4. Nf3 e6 5. Be2 Nf6 6. Bb2 Be7 7. O-O O-O 8. Qe1
Nd5 9. c4 bxc4 10. bxc4 Nb4 11. a3 Nc2 12. Qg3 Bf6 13. Bxf6 Qxf6 14. Ra2 Na1
15. Nc3 Nb3 16. Rb2 Nxd2 17. Rxb7 *
Position (FEN): rn3rk1/1Rpp1ppp/p3pq2/8/2P2P2/P1N1PNQ1/3nB1PP/5RK1 b - - 0 17
Black to move.
Themes:  Middlegame  
Puzzle rating: 2017
Best move: Nxf1