Chess puzzle (Advantage)
Opening: Philidor_Defense, Philidor_Defense_Other_variations
Moves: 1. e4 e5 2. Nf3 d6 3. Nc3 h6 4. Bc4 Nf6 5. d3 g6 6. Be3 Bg7 7. Qd2 Ng4 8. O-O-O
Nxe3 9. Qxe3 O-O 10. Nd5 Kh7 11. g3 a5 12. h4 h5 13. Ng5+ Kg8 14. f4 c6 15. Nc3
b5 16. Bxf7+ Rxf7 17. Nxf7 Kxf7 18. fxe5 Bxe5 19. Rhf1+ Kg7 *
Position (FEN): rnbq4/6k1/2pp2p1/pp2b2p/4P2P/2NPQ1P1/PPP5/2KR1R2 w - - 2 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1534
Best move: d4