[Event "Rio de Janeiro"] [Site "?"] [Round "0"] [White "Panno"] [Black "Rosetto"] [Result "1-0"] [ECO "A17"] [Opening "English: Anglo-Indian, 2.Nc3 e6"] {Counterattack is the best form of defence} 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4 Qc7 11. Bb2 e5 12. h3 e4 13. Nd2 Ne7 14. a4 Ng6 (14... -- 15. Ba3) 15. Ba3 b6 16. Qe2 Nh4 17. dxc5 bxc5 18. Rab1 Re8 {With the advanced Black e-pawn and the menacing Knight on h4, the White Kingside is under considerable pressure. Having no way to further strengthen his Kingside position, White strives for counterplay elsewhere} 19. Rb5 Bxh3 $5 { A promising sacrifice, which sets White some nasty problems} (19... Re5 20. f4 {Powerful counterstroke} 20... exf3 21. Nxf3 Nxf3+ 22. Qxf3) 20. gxh3 Qd7 21. f3 $1 {The liquidation of Black's e-pawn is a matter of life or death for White } (21. Rfb1 Qxh3 22. Qf1 Qg4+ 23. Kh1 Rad8 {Black would have many chances}) 21... Rad8 22. Rb2 $1 {Strengthening the 2nd rank} 22... exf3 (22... -- 23. Bb5 ) 23. Nxf3 Qxh3 24. Bxf7+ {Signalling a clear refutation of Black's attack} 24... Kh8 25. Bxe8 Qg4+ 26. Kh2 Rxe8 27. Nxh4 Qxh4+ 28. Kg1 Qg5+ 29. Qg2 Qxe3+ 30. Qf2 Qg5+ 31. Kh1 h6 32. Qf5 (32. -- Re4) 32... Qe3 33. Bxc5 Qxc3 34. Rc2 Qb3 35. Rcf2 1-0