[Event "Interzonal-11b"]
[Site "Rio de Janeiro"]
[Date "1979.09.25"]
[Round "3"]
[White "Kagan, Shimon"]
[Black "Shamkovich, Leonid Alexandrovic"]
[Result "1/2-1/2"]
[WhiteElo "2445"]
[BlackElo "2495"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g3 a6 7. Bg2 Qc7 8. O-O Be7 9. Nde2 O-O 10. b3 Nc6 11. Bb2 b5 12. Rc1 Bb7 13. Nf4 Rad8 14. a3 Ne5 15. Qe2 Bc6 16. Nd3 Qb6 17. h3 Rfe8 18. Kh2 Bf8 19. f4 Ng6 20. e5 Bxg2 21. Qxg2 dxe5 22. fxe5 Nd5 23. Nxd5 Rxd5 24. Qf3 Rd7 25. Rce1 Rc8 26. Re2 Bc5 27. h4 Qb7 28. Qg4 Bf8 29. Nf2 Rdc7 30. h5 Ne7 31. Ne4 Nf5 32. Rff2 h6 33. Qf4 Be7 34. g4 Bg5 35. Nxg5 hxg5 36. Qxg5 Nh6 37. Qf4 Rd7 38. Qg3 Rd1 39. Rg2 Rcd8 40. Bc3 Qe7 41. Bd2 Ra1 42. Re1 Rxe1 43. Qxe1 Rd4 44. Kh3 Qb7 45. Bxh6 gxh6 46. Qe3 Qe4 47. Qxe4 Rxe4 48. Rd2 Rxe5 49. Rd6 Re3+ 50. Kh4 Rc3 51. Rxa6 Rxc2 52. Ra5 Ra2 53. b4 Kg7 54. Kg3 Kf6 55. Rxb5 Rxa3+ 56. Kf4 Ra1 57. Rb8 Rc1 58. b5 Rc4+ 59. Kg3 Rb4 60. b6 Kg7 61. Kf3 1/2-1/2