[Event "Olympiad-23"]
[Site "Buenos Aires"]
[Date "1978.10.25"]
[Round "1"]
[White "Polugaevsky, Lev"]
[Black "Williams, Arthur Howard"]
[Result "1/2-1/2"]
[WhiteElo "2620"]
1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O e6 6. Nc3 Be7 7. d4 cxd4 8. Qxd4 d6 9. b3 Nbd7 10. Bb2 O-O 11. e4 a6 12. Rfd1 Qc7 13. Qe3 Rfe8 14. Nd4 Bf8 15. Rac1 Rad8 16. h3 Qb8 17. Re1 g6 18. Rcd1 Ba8 19. Qd2 Bg7 20. Qc2 Rc8 21. Qb1 Bb7 22. Re2 Rcd8 23. Red2 Qa8 24. Re2 Nc5 25. Rde1 Nfd7 26. Qc1 Ne5 27. Rd2 Nc6 28. Nxc6 Bxc6 29. Qc2 b5 30. b4 Nd7 31. Nd1 Ne5 32. Ne3 bxc4 33. Red1 Qb8 34. Nxc4 Nxc4 35. Qxc4 Bxb2 36. Rxb2 Qb7 37. Rbd2 Ba4 38. Re1 Bc6 39. Rc1 Rc8 40. Qd4 Red8 41. Rdc2 e5 42. Qd2 Qb6 43. a4 Bd7 44. a5 Rxc2 45. Rxc2 Qb8 46. h4 h5 47. Bf3 Kg7 48. Rc1 Bb5 49. Kh2 Qa7 50. Kg2 Qd4 51. Qe1 Rd7 52. Rd1 Qc4 53. Rc1 Qd4 54. Rd1 Qc4 1/2-1/2