Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_London_System
Moves: 1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 Bd6 5. Ne5 O-O 6. Bd3 Nfd7 7. Nd2 Nxe5 8.
dxe5 Be7 9. O-O Bg5 10. Bg3 f6 11. exf6 Bxf6 12. c3 e5 13. Bc2 Nc6 14. Nf3 Bg4
15. Qd3 *
Position (FEN): r2q1rk1/ppp3pp/2n2b2/3pp3/6b1/2PQPNB1/PPB2PPP/R4RK1 b - - 5 15
Black to move.
Themes:  Middlegame  
Puzzle rating: 1164
Best move: e4