Chess puzzle (Advantage)
Opening: Philidor_Defense, Philidor_Defense_Other_variations
Moves: 1. e4 e5 2. Nf3 d6 3. d4 f6 4. dxe5 fxe5 5. Nc3 Nf6 6. Bg5 Be7 7. Bc4 Nbd7 8.
Nh4 Nc5 9. f3 Ne6 10. Bxf6 Bxf6 11. Nf5 O-O 12. Qd5 c6 13. Qxd6 Qxd6 14. Nxd6
Kh8 15. O-O-O Nd4 16. Ne2 b5 17. Nxd4 exd4 18. f4 *
Position (FEN): r1b2r1k/p5pp/2pN1b2/1p6/2BpPP2/8/PPP3PP/2KR3R b - - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1543
Best move: bxc4