Chess puzzle (Advantage)
Opening: Modern_Defense, Modern_Defense_Other_variations
Moves: 1. d4 g6 2. Bf4 Bg7 3. e3 d6 4. c4 Bf5 5. Nc3 Nc6 6. Nf3 e5 7. dxe5 dxe5 8.
Nxe5 Nxe5 9. Be2 Nc6 10. O-O Nge7 11. Qb3 b6 12. Rad1 Qc8 13. Bf3 Na5 14. Qb5+
Bd7 15. Qg5 f6 16. Qg3 Nf5 17. Qg4 Rb8 18. Nd5 Nxe3 *
Position (FEN): 1rq1k2r/p1pb2bp/1p3pp1/n2N4/2P2BQ1/4nB2/PP3PPP/3R1RK1 w k - 0 19
White to move.
Themes:  Middlegame  
Puzzle rating: 2435
Best move: Qh4