Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Other_variations
Moves: 1. d4 d5 2. e3 Nf6 3. Nc3 a6 4. h3 Be6 5. Nf3 Nc6 6. a3 Bf5 7. Bd3 e6 8. Bxf5
exf5 9. b4 Bd6 10. Bb2 Ne7 11. O-O Ne4 12. Qd3 c6 13. Nd2 g6 14. Ncxe4 fxe4 15.
Qe2 O-O 16. f3 f5 17. fxe4 fxe4 18. c4 *
Position (FEN): r2q1rk1/1p2n2p/p1pb2p1/3p4/1PPPp3/P3P2P/1B1NQ1P1/R4RK1 b - - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1883
Best move: Nf5