Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Zukertort_Variation
Moves: 1. d4 d5 2. Nf3 g6 3. Bf4 Bg7 4. Nc3 e6 5. Qd2 Nc6 6. e3 Nge7 7. O-O-O O-O 8.
Bb5 a6 9. Be2 b5 10. e4 Bd7 11. Bh6 b4 12. Na4 a5 13. h4 Nxd4 *
Position (FEN): r2q1rk1/2pbnpbp/4p1pB/p2p4/Np1nP2P/5N2/PPPQBPP1/2KR3R w - - 0 14
White to move.
Themes:  Middlegame  
Puzzle rating: 1544
Best move: Nxd4