Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. Nf3 d5 2. d4 Nc6 3. c4 dxc4 4. d5 Nb8 5. Nc3 a6 6. a4 Nf6 7. e4 Bg4 8. Bxc4
Nbd7 9. O-O Nc5 10. e5 Nfe4 11. d6 cxd6 12. Nxe4 Nxe4 13. Qd5 Bxf3 14. Qxf7+
Kd7 15. exd6 Bxg2 16. dxe7 Bxe7 17. Be6+ Kc7 *
Position (FEN): r2q3r/1pk1bQpp/p3B3/8/P3n3/8/1P3PbP/R1B2RK1 w - - 2 18
White to move.
Themes:  Middlegame  
Puzzle rating: 1697
Best move: Bf4+