Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Ragozin_Defense
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. a3 Bxc3+ 6. bxc3 Nbd7 7. Bg5 h6 8.
Bh4 O-O 9. cxd5 exd5 10. e3 c6 11. Bd3 Re8 12. O-O Nf8 13. Re1 Ng6 14. Bxg6
fxg6 15. Qc2 g5 16. Bg3 Ne4 17. Nd2 Bf5 18. Nxe4 Rxe4 *
Position (FEN): r2q2k1/pp4p1/2p4p/3p1bp1/3Pr3/P1P1P1B1/2Q2PPP/R3R1K1 w - - 0 19
White to move.
Themes:  Middlegame  
Puzzle rating: 1142
Best move: f3