Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Austrian_Defense
Moves: 1. d4 d5 2. c4 c5 3. dxc5 e5 4. cxd5 Bxc5 5. e4 Nf6 6. Nc3 Qb6 7. Bd3 Bxf2+ 8.
Kf1 O-O 9. Nge2 Ng4 10. Ng3 f5 11. exf5 Bxf5 *
Position (FEN): rn3rk1/pp4pp/1q6/3Ppb2/6n1/2NB2N1/PP3bPP/R1BQ1K1R w - - 0 12
White to move.
Themes:  Opening  
Puzzle rating: 1723
Best move: Nxf5