Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. d4 d5 2. Nc3 Nc6 3. e3 h6 4. Bd3 e6 5. Nge2 a6 6. a3 Nf6 7. O-O Bd6 8. f4
O-O 9. Qe1 Ne7 10. Nd1 c5 11. c3 c4 12. Bc2 b5 13. b3 Nc6 14. bxc4 dxc4 15. Ng3
Nd7 16. Nb2 Bb7 17. Bd1 Qh4 18. Ne4 Qxe1 19. Rxe1 Ne7 *
Position (FEN): r4rk1/1b1nnpp1/p2bp2p/1p6/2pPNP2/P1P1P3/1N4PP/R1BBR1K1 w - - 1 20
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 789
Best move: Nxd6