[Event "URS-ch25 Semifinal"]
[Site "Kiev"]
[Date "1957.11.18"]
[Round "6"]
[White "Sokolsky, Alexey Pavlovich"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]
1. c4 g6 2. Nc3 Bg7 3. d4 d6 4. e4 Nf6 5. f3 c6 6. Be3 a6 7. Bd3 O-O 8. Nge2 Nbd7 9. Qd2 b5 10. b3 e5 11. d5 cxd5 12. cxd5 Nh5 13. Rc1 f5 14. exf5 gxf5 15. Ng3 f4 16. Nxh5 fxe3 17. Qc2 Qh4+ 18. Ng3 Nc5 19. Ne4 Nxe4 20. Bxe4 Ra7 21. Qc6 Qd8 22. Ke2 Bh6 23. Rc2 Rg7 24. Qa8 Qa5 25. Qc6 Qd8 26. Qa8 Qa5 27. Qc6 1/2-1/2