[Event "URS-ch20 Semifinal"]
[Site "Riga"]
[Date "1952.05.29"]
[Round "9"]
[White "Koblencs, Aleksandrs"]
[Black "Nikitin, Aleksander S"]
[Result "1/2-1/2"]

1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. d4 Be7 5. Nf3 O-O 6. O-O c6 7. b3 Nbd7 8. Bb2 b5 9. c5 b4 10. a3 bxa3 11. Rxa3 Ne4 12. b4 Rb8 13. Qe1 Qc7 14. Bc1 e5 15. Be3 Qb7 16. Nbd2 exd4 17. Bf4 Nxd2 18. Nxd2 Ra8 19. Nb3 Bf6 20. Qd2 Re8 21. Bf3 Ne5 22. Bxe5 Bxe5 23. Nxd4 Bh3 24. Rb1 Bxd4 25. Qxd4 Bf5 26. Rb2 Be4 27. Bg4 Bg6 28. f3 Re7 29. Ra5 Rae8 30. Kf2 Qb8 31. Bh3 Rb7 32. Ra6 Qc7 33. Qf4 f6 34. Qxc7 Rxc7 35. Rba2 Ree7 36. R2a3 Be8 37. Re3 Kf7 38. Rxe7+ Rxe7 39. Bf5 Rb7 40. Ra4 Re7 41. Bd3 h6 42. Bc2 Rb7 43. Ke3 Ke7 44. Kd4 Kd8 45. Kc3 Kc8 46. Bd3 Kb8 47. Ra1 Bf7 48. Rb1 Be8 49. Ba6 Re7 50. Kd4 Kc7 51. Ra1 Kb8 52. g4 Bd7 53. h4 Re8 54. Bd3 Kb7 55. Rg1 Rh8 56. Rg2 Kc7 57. Rg1 Rb8 58. Kc3 d4+ 1/2-1/2