Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Barmen_Variation
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. e3 Ne4 6. Bd3 f5 7. Ne5 Bd6 8. Nxd7
Bxd7 9. f3 *
Position (FEN): r2qk2r/pppb2pp/3bp3/3p1p2/2PPn3/2NBPP2/PP4PP/R1BQK2R b KQkq - 0 9
Black to move.
Themes:  Opening  
Puzzle rating: 989
Best move: Qh4+