Chess puzzle (Advantage)
Opening: Old_Indian_Defense, Old_Indian_Defense_Other_variations
Moves: 1. d4 d6 2. c4 e6 3. e4 f6 4. Nc3 Kf7 5. Bd3 g6 6. Nf3 h5 7. Qc2 Bh6 8. Bxh6
Nxh6 9. e5 f5 10. h4 Kg7 11. O-O-O Nc6 12. a3 Bd7 13. Rhe1 Nf7 14. exd6 cxd6
15. d5 exd5 16. Nxd5 Nce5 17. Qc3 Bc6 18. Nf4 Qf6 19. Nd5 *
Position (FEN): r6r/pp3nk1/2bp1qp1/3Nnp1p/2P4P/P1QB1N2/1P3PP1/2KRR3 b - - 6 19
Black to move.
Themes:  Middlegame  
Puzzle rating: 1662
Best move: Bxd5