Chess puzzle (Advantage)
Opening: Italian_Game, Italian_Game_Hungarian_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. O-O d6 5. d4 Bg4 6. h3 Bh5 7. g4 Bg6 8. Nc3
Nf6 9. Re1 O-O 10. d5 Na5 11. Bd3 b6 12. b4 Nb7 13. Ba6 Rb8 14. Nb5 Nxe4 15.
Nxa7 Bh4 16. Be3 Nc3 17. Qd2 Ne4 18. Qc1 Qf6 19. Nxh4 *
Position (FEN): 1r3rk1/Nnp2ppp/Bp1p1qb1/3Pp3/1P2n1PN/4B2P/P1P2P2/R1Q1R1K1 b - - 0 19
Black to move.
Themes:  Middlegame  
Puzzle rating: 1402
Best move: Qxh4