Chess puzzle (Advantage)
Opening: Philidor_Defense, Philidor_Defense_Lopez_Countergambit
Moves: 1. e4 d6 2. Nf3 e5 3. Bc4 f5 4. d3 Nf6 5. Nc3 Nc6 6. a3 Bd7 7. O-O f4 8. Ng5
Qe7 9. Nf7 Rg8 10. Nxd6+ cxd6 11. Bxg8 O-O-O 12. Ba2 g5 13. h3 h5 14. Nd5 Nxd5
15. exd5 Nd4 16. c3 Nb5 17. a4 Nc7 18. Re1 g4 19. h4 *
Position (FEN): 2kr1b2/ppnbq3/3p4/3Pp2p/P4ppP/2PP4/BP3PP1/R1BQR1K1 b - - 0 19
Black to move.
Themes:  Middlegame  
Puzzle rating: 1164
Best move: Qxh4