Chess puzzle (Advantage)
Opening: Modern_Defense, Modern_Defense_Other_variations
Moves: 1. d4 g6 2. g3 Bg7 3. Nf3 Nf6 4. Bg2 O-O 5. Nc3 d6 6. O-O a6 7. e4 Nbd7 8. e5
dxe5 9. dxe5 Ne8 10. Re1 e6 11. Bg5 f6 12. exf6 Nexf6 13. Rxe6 Nc5 14. Re2
Qxd1+ 15. Rxd1 Bg4 16. Re3 c6 17. Bf4 Nh5 18. Bd6 Rf5 19. Rd4 *
Position (FEN): r5k1/1p4bp/p1pB2p1/2n2r1n/3R2b1/2N1RNP1/PPP2PBP/6K1 b - - 5 19
Black to move.
Themes:  Middlegame  
Puzzle rating: 1864
Best move: Bxf3