Chess puzzle (Advantage)
Opening: Pirc_Defense, Pirc_Defense_Classical_Variation
Moves: 1. Nf3 Nf6 2. d4 g6 3. Nc3 Bg7 4. e4 d6 5. Bb5+ Bd7 6. Bc4 Nc6 7. Ng5 e6 8. f4
Qe7 9. b3 O-O-O 10. O-O h6 11. Nf3 Ng4 12. Ba3 Bxd4+ *
Position (FEN): 2kr3r/pppbqp2/2npp1pp/8/2BbPPn1/BPN2N2/P1P3PP/R2Q1RK1 w - - 0 13
White to move.
Themes:  Middlegame  
Puzzle rating: 934
Best move: Nxd4