Chess puzzle (Advantage)
Opening: Philidor_Defense, Philidor_Defense_Hanham_Variation
Moves: 1. e4 d6 2. d4 Nd7 3. Nf3 e5 4. Bc4 h6 5. dxe5 dxe5 6. O-O Ngf6 7. c3 c6 8. Qb3
Qe7 9. Rd1 b5 10. Bd3 Nc5 11. Qc2 Bg4 12. b4 Bxf3 13. gxf3 Nxd3 14. Rxd3 Rd8
15. c4 Rxd3 16. Qxd3 Qxb4 17. Nc3 bxc4 18. Qc2 Bc5 *
Position (FEN): 4k2r/p4pp1/2p2n1p/2b1p3/1qp1P3/2N2P2/P1Q2P1P/R1B3K1 w k - 2 19
White to move.
Themes:  Middlegame  
Puzzle rating: 1598
Best move: Rb1