Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nc3 e6 3. f4 d5 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. d4 dxe4 7. Nxe4 cxd4
8. Nf3 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 Nc6 11. O-O-O Rd8 12. Rhe1 Nf6 13. Nxf6+ gxf6
14. Re4 O-O 15. Nxd4 f5 16. Re3 Nxd4 17. Rd3 Qa4 18. Rxd4 Rxd4 19. Qxd4 Qxa2 *
Position (FEN): 5rk1/pp3p1p/4p3/5p2/3Q1P2/8/qPP3PP/2KR4 w - - 0 20
White to move.
Themes: Defensive Move Endgame  
Puzzle rating: 1865
Best move: Rd3