[Event "URS-ch48 Semifinal"]
[Site "Tallinn"]
[Date "1980.08.20"]
[Round "4"]
[White "Dvoirys, Semen I"]
[Black "Ehlvest, Jaan"]
[Result "1/2-1/2"]
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. O-O Nc6 8. Be3 Bd7 9. Nb3 a6 10. g4 h6 11. f4 b5 12. a3 g5 13. Kh1 gxf4 14. Bxf4 Ne5 15. Nc5 Bc6 16. Bxe5 dxe5 17. Qxd8+ Bxd8 18. Nd3 Nd7 19. a4 bxa4 20. Bf3 Bb6 21. Nxa4 Ba7 22. b4 Ke7 23. c3 Be3 24. Rfe1 Bxa4 25. Rxe3 Bb5 26. Kg2 Rhc8 27. Nb2 Nb6 28. Kf2 Rd8 29. Ke1 Rdc8 30. Be2 Bxe2 31. Kxe2 Nd7 32. Kd3 Rc6 33. Ra5 Rb8 34. Re1 Rg8 35. Rg1 f5 36. h3 Rgc8 37. c4 Rd6+ 38. Kc3 f4 39. Rd1 Nf6 40. Rxd6 Nxe4+ 41. Kd3 Nxd6 42. Rxe5 Rd8 43. Ke2 Kf6 44. Ra5 Ne4 45. Kf3 Ng5+ 46. Kxf4 Rd2 47. h4 Nh3+ 48. Kg3 Rxb2 49. Kxh3 Rb3+ 50. Kg2 Rxb4 51. Rxa6 Rxc4 1/2-1/2