[Event "World-ch21 Botvinnik-Symslov +7-5=11"]
[Site "Moscow"]
[Date "1958.05.08"]
[Round "23"]
[White "Smyslov, Vassily V"]
[Black "Botvinnik, Mikhail"]
[Result "1/2-1/2"]

1. Nf3 Nf6 2. g3 g6 3. b4 b6 4. Bb2 Bb7 5. Na3 Bg7 6. Bg2 O-O 7. O-O d6 8. c4 c5 9. Nc2 Qc7 10. d3 Nbd7 11. e4 e6 12. Ne3 Ng4 13. Bxg7 Nxe3 14. fxe3 Kxg7 15. Ng5 Rae8 16. a3 d5 17. bxc5 bxc5 18. Qb3 d4 19. exd4 cxd4 20. c5 h6 21. Nf3 e5 22. Rac1 Bc6 23. Nh4 Rb8 24. Qd1 Qd8 25. Bh3 Nf6 26. Nf3 Qe7 27. Qc2 Rb7 28. Nd2 Rc7 29. Qc4 Nh7 30. Nf3 Rb8 31. Rf2 Ng5 32. Nxg5 hxg5 33. a4 Be8 34. Bg4 a5 35. Bd1 Rbc8 36. Rfc2 Bd7 37. Be2 Kg8 38. Kg2 Kg7 39. Kg1 Kf8 40. Bd1 Kg8 41. Qb3 1/2-1/2