Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. d4 d5 2. Nc3 c6 3. Bf4 a6 4. e3 Nf6 5. Bd3 e6 6. Nf3 Bd6 7. Ne5 O-O 8. Qf3
Nfd7 9. Qh3 Nf6 10. Ng4 Ne4 11. Ne5 f6 12. Nf3 *
Position (FEN): rnbq1rk1/1p4pp/p1pbpp2/3p4/3PnB2/2NBPN1Q/PPP2PPP/R3K2R b KQ - 1 12
Black to move.
Themes:  Middlegame  
Puzzle rating: 1741
Best move: e5