[Event "Moscow"] [Site "Moscow"] [Round "0"] [White "Smyslov"] [Black "Denker"] [Result "1-0"] [ECO "B24"] [Opening "Sicilian: Closed, 3.g3 g6"] {The backward pawn as a weakness} 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 Nd4 7. Nce2 d6 8. c3 Nc6 9. d4 cxd4 10. Nxd4 Nxd4 11. Bxd4 e5 $2 12. Be3 Ne7 13. Ne2 O-O 14. O-O Be6 15. Qd2 Qc7 16. Rfc1 $1 { Very refined play against the square d5, preparing c4.} 16... f5 (16... b5 17. a4 a6 18. Rd1 {With the constant threat of opening the a-file}) 17. c4 fxe4 18. Nc3 {Another fine move} 18... Nf5 (18... Bxc4 19. Nxe4 d5 20. Ng5 { the positional aim is to control the squares e4 and d5}) 19. Nxe4 Nxe3 (19... Nd4 20. c5 d5 21. Ng5 Bf7 22. f4 {Smyslov}) 20. Qxe3 h6 21. Rd1 Rfd8 (21... Bxc4 22. Rac1 $1 (22. Nxd6)) 22. Rac1 Rac8 23. b3 b6 24. Nc3 Qe7 25. Bd5 $1 { Thus Black is forced to relinquish the only piece with which he might have been able to contest the d5 square, and is left with a bad Bishop which is no match at all for theWhiteKnight} 25... Kh7 26. Bxe6 Qxe6 27. Rd3 Rc7 28. Rcd1 Rf7 29. Ne4 Bf8 30. Rd5 Qg4 31. R1d3 {The methodical text move, preparing to treble the heavy pieces on the d-file, marks the doom of the backward pawn} ( 31. Nxd6 Bxd6 32. Rxd6 Qxd1+ $1 $132) 31... Be7 (31... Qe6 32. Qd2 Rfd7 33. c5 bxc5 34. Nxc5 $18) 32. Nxd6 Bxd6 33. Rxd6 { White aims are fully achieved, and the rest of the game is outside our province } 33... Rdf8 34. Qxe5 Rxf2 35. Rd7+ R8f7 36. Rxf7+ Rxf7 37. Rd8 Rg7 38. Qe8 g5 39. Qh8+ Kg6 40. Rd6+ Kf7 41. Qxh6 Qf5 42. Rd1 Qc5+ 43. Kg2 Qe7 44. Rf1+ Kg8 45. Qf6 Qe8 46. Qf5 g4 47. Rf2 Qe7 48. Qd3 Rg5 49. Re2 Qf8 50. Qe4 Rg7 51. Qd5+ Qf7 52. Re6 $1 Qc7 1-0