[Event "URS-ch25 Final"]
[Site "Riga"]
[Date "1958.01.27"]
[Round "9"]
[White "Polugaevsky, Lev"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. dxc5 f5 9. Nh3 Bd7 10. Nf4 Qa5 11. Nxd5 exd5 12. Qd4 Nc6 13. Qe3+ Kf7 14. Qd3 Qxc5 15. Be3 Qd6 16. g3 Rhe8 17. Bg2 Ne5 18. Qd4 Nc4 19. Bf4 Qe6 20. O-O Ne3 21. Bxe3 Qxe3+ 22. Qxe3 Rxe3 23. f4 Be6 24. Rfd1 Rc8 25. Bxd5 Rcxc3 26. Bxb7 Rxe2 27. Rdc1 Rb3 28. Rc7+ Kf6 29. Ba6 Rd2 30. Rxa7 Rbb2 31. Bf1 Rxh2 32. Ra6 Kf7 33. Ra7+ Kf6 34. Ra6 Kf7 35. Ra7+ Kf6 1/2-1/2