Chess puzzle (Advantage)
Opening: Rat_Defense, Rat_Defense_Small_Center_Defense
Moves: 1. e4 d6 2. d4 e6 3. f4 Nc6 4. Nf3 Bd7 5. e5 Qe7 6. Nc3 d5 7. Nb5 O-O-O 8. a4
a6 9. Nc3 f6 10. Bd3 fxe5 11. dxe5 Qc5 12. Qe2 Nb8 13. Be3 Qb4 14. Bd4 h6 15.
O-O Bc5 16. Na2 *
Position (FEN): 1nkr2nr/1ppb2p1/p3p2p/2bpP3/Pq1B1P2/3B1N2/NPP1Q1PP/R4RK1 b - - 3 16
Black to move.
Themes:  Middlegame  
Puzzle rating: 1052
Best move: Bxd4+