Chess puzzle (Advantage)
Opening: Polish_Opening, Polish_Opening_Kings_Indian_Variation
Moves: 1. b4 Nf6 2. Bb2 g6 3. c4 Bg7 4. e3 O-O 5. Nf3 d6 6. d4 c6 7. Nc3 Nbd7 8. Be2
b6 9. O-O Bb7 10. Qc2 Rc8 11. a3 Re8 12. Rad1 d5 13. c5 b5 14. e4 dxe4 15. Nxe4
Nd5 16. Nc3 e6 17. Ne4 Bf8 18. Ne5 a5 19. bxa5 Qxa5 *
Position (FEN): 2r1rbk1/1b1n1p1p/2p1p1p1/qpPnN3/3PN3/P7/1BQ1BPPP/3R1RK1 w - - 0 20
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1474
Best move: Nxd7