Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nf3 e6 3. Bc4 Nc6 4. O-O a6 5. a3 b5 6. Ba2 Be7 7. Nc3 Qc7 8. d3
Bd6 9. Be3 Ne5 10. h3 Bb7 11. Nxe5 Bxe5 12. Qg4 Ne7 13. Rad1 O-O 14. d4 cxd4
15. Bxd4 Bxd4 16. Rxd4 Rad8 17. Rfd1 Ng6 18. Ne2 Qxc2 19. Rxd7 Rxd7 20. Rxd7
Bxe4 21. Nd4 Qc1+ 22. Kh2 Bb1 23. Nxe6 Bxa2 24. Nxf8 Nxf8 25. Ra7 Qxb2 26. Qc8
Qxa3 *
Position (FEN): 2Q2nk1/R4ppp/p7/1p6/8/q6P/b4PPK/8 w - - 0 27
White to move.
Themes:  Endgame  
Puzzle rating: 1870
Best move: Rxa6