[Event "Sverdlovsk"]
[Round "4"]
[Site "Sverdlovsk"]
[Date "1943"]
[White "Botvinnik, Mikhail"]
[Black "Boleslavsky, Isaak"]
[Result "1-0"]
[ECO "B59"]
[Opening "Sicilian, Boleslavsky Variation, 7.Nb3"]
 1. e4   c5
 2. Nf3  Nc6
 3. d4   cxd4
 4. Nxd4 Nf6
 5. Nc3  d6
 6. Be2  e5
 7. Nb3  Be7
 8. O-O  O-O
 9. f4   exf4
10. Bxf4 Be6
11. Bd3  Ne5
12. Kh1  Qb6
13. Qe2  Nxd3
14. cxd3 Bxb3
15. Be3  Qb4
16. axb3 Qxb3
17. Ra5  Qe6
18. Bd4  Bd8
19. Raf5 Nd7
20. Qg4  Ne5
21. Qg3  f6
22. Nd5  a6
23. Qh3  Re8
24. g4   h6
25. Qg3  Rc8
26. Bc3  a5
27. h4   b5
28. Qh3  Nf7
29. Bxf6 Bxf6
30. Nxf6+ gxf6
31. Rxf6 Qd7
32. Rxf7 Qxf7
33. Rxf7 Kxf7
34. g5   hxg5
35. Qf5+ Kg7
36. Qxg5+ Kh7
37. Qxb5 Rf8
38. Qd7+ Kg8
39. Qe6+ Kg7
40. Qd7+ Kg8
41. Kg2  Rc2+
42. Kg3  Rcf2
43. Qxd6 R2f7
44. Qd5  Kh8
45. e5   Rg7+
46. Kh3  Rg6
47. d4   Rf1
48. Qe4  Rgg1
49. d5   Rh1+
50. Kg4  Rhg1+
51. Kh5  Rf7
52. e6   
1-0