Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Tarrasch_Defense
Moves: 1. d4 e6 2. Nf3 d5 3. c4 c5 4. dxc5 Bxc5 5. cxd5 exd5 6. e3 a6 7. a3 Nf6 8. Nc3
O-O 9. Bd3 Nc6 10. O-O Re8 11. Qc2 Bg4 12. Ng5 g6 13. h3 h6 *
Position (FEN): r2qr1k1/1p3p2/p1n2npp/2bp2N1/6b1/P1NBP2P/1PQ2PP1/R1B2RK1 w - - 0 14
White to move.
Themes:  Opening  
Puzzle rating: 1943
Best move: Nxf7