Chess puzzle (Advantage)
Opening: Kings_Pawn_Game, Kings_Pawn_Game_Leonardis_Variation
Moves: 1. e4 e5 2. d3 Bc5 3. a4 Nf6 4. Bd2 d5 5. exd5 Nxd5 6. Nf3 O-O 7. Be2 Re8 8.
Kf1 Nf4 9. b4 Bb6 10. a5 Bd4 11. c3 e4 12. Ng1 Bf6 13. dxe4 Rxe4 14. Bf3 Qd3+
15. Be2 Nxe2 16. Nxe2 Bg5 17. f4 Rxf4+ 18. Kg1 Bg4 *
Position (FEN): rn4k1/ppp2ppp/8/P5b1/1P3rb1/2Pq4/3BN1PP/RN1Q2KR w - - 2 19
White to move.
Themes:  Middlegame  
Puzzle rating: 1186
Best move: Nxf4