Chess puzzle (Advantage)
Moves: 1. e4 Nf6 2. Nc3 e5 3. Nf3 d6 4. Bc4 Be7 5. O-O Bd7 6. d4 Nc6 7. d5 Na5 8. Bb5
c6 9. Ba4 b5 10. dxc6 Nxc6 11. Bxb5 O-O 12. a4 a6 13. Bd3 Nb4 14. Bc4 Bc6 15.
a5 Nxe4 16. Nxe4 Bxe4 17. c3 Nc6 18. b4 d5 19. Be2 f5 20. Ba3 Rf6 21. b5 axb5
22. Bxe7 Qxe7 23. Bxb5 Nxa5 24. c4 Raf8 25. cxd5 Rd6 26. Rxa5 Rxd5 27. Qa4 Bxf3
28. gxf3 Qg5+ 29. Kh1 Rd4 30. Rg1 *
Position (FEN): 5rk1/6pp/8/RB2ppq1/Q2r4/5P2/5P1P/6RK b - - 4 30
Black to move.
Themes:  Middlegame  
Puzzle rating: 1070
Best move: Rxa4