[Event "URS-ch18 Semifinal"]
[Site "Gorky"]
[Date "1950.09.??"]
[Round "8"]
[White "Estrin, Yakov Borisovich"]
[Black "Aronin, Lev Solomonovich"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 Be7 8. O-O O-O 9. Bb3 Na5 10. f4 b6 11. g4 Nxb3 12. Nc6 Qc7 13. Nxe7+ Qxe7 14. axb3 Bb7 15. e5 dxe5 16. fxe5 Nd5 17. Nxd5 Bxd5 18. h3 Rac8 19. c3 f6 20. exf6 Rxf6 21. Qd4 Ba8 22. Rxf6 Qb7 23. Qd2 gxf6 24. Kh2 Qc7+ 25. Bf4 e5 26. Be3 Rd8 27. Qf2 Qf7 28. Qf5 Qd5 29. Rg1 Qf3 30. Qxf3 Bxf3 31. Rf1 1/2-1/2