Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Smith-Morra_Gambit
Moves: 1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qd3 g6 5. Nc3 Bg7 6. f3 a6 7. Nge2 Qb6 8. b3
Nf6 9. Bb2 d6 10. O-O-O O-O 11. Na4 Qa5 12. Bc3 Qg5+ 13. f4 Qh5 14. Ng3 Qg4 15.
Ne2 Rb8 16. h3 Qh5 17. g4 Bxg4 18. Ng3 Qh4 *
Position (FEN): 1r3rk1/1p2ppbp/p1np1np1/8/N3PPbq/1PBQ2NP/P1P5/2KR1B1R w - - 2 19
White to move.
Themes:  Middlegame  
Puzzle rating: 1649
Best move: hxg4