Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. Nf3 Nc6 2. d4 d5 3. c4 e6 4. Bf4 Bd6 5. Bg3 Nf6 6. e3 Ne4 7. Nc3 f6 8. Be2
O-O 9. O-O Nxg3 10. hxg3 dxc4 11. Bxc4 Qe7 12. d5 exd5 *
Position (FEN): r1b2rk1/ppp1q1pp/2nb1p2/3p4/2B5/2N1PNP1/PP3PP1/R2Q1RK1 w - - 0 13
White to move.
Themes:  Opening  
Puzzle rating: 1729
Best move: Nxd5