[Event "It"] [Site "Nottingham (England)"] [Round "0"] [White "Flohr"] [Black "Vidmar"] [Result "1-0"] [ECO "A13"] [Opening "English: 1...e6 2.Nc3 d5"] {The weakness of the Isolated d-pawn} 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 c5 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Nxd5 exd5 11. Bd3 g6 12. dxc5 Nxc5 13. O-O Bg4 14. Nd4 Rac8 15. Qd2 a6 16. Bc2 Qg5 {A comparision with the previous example shows that the player fighting agains the isolated d-pawn has already achieved two successes 1) He has occupied the blockade square with a Knight 2) He has exchanged two pairs of minor pieces We shall now see to what extent White's advantage is capable ofexpansion} 17. f3 { This weakens the e-pawn, but on the other hand it takes control of the e4 square. This square had the potential to form the basis of a Kingside attack by the opponent} 17... Bd7 18. Rfe1 Rfd8 19. Rad1 Qf6 20. Bb3 Ba4 $1 { Correct, Black gets rid of his bad Bishop} 21. Bxa4 Nxa4 22. Rc1 Nc5 23. Red1 Qb6 24. Ne2 {Beginning the direct attack on the weak d-pawn} 24... Nd7 { With a counter-attack against the c-pawn} 25. Qd4 Qxd4 26. Nxd4 {Everything ds according to plan. White has preserved his advantage into the endgame} 26... Ne5 27. b3 Kf8 28. Kf1 Rxc1 29. Rxc1 Nc6 30. Nxc6 {Although White has been able to make things go just as he wished, it is still doubtful whether he could have achieved more than a draw after Ke7. Now he has the opportunity to transfrom one type of advantage into another} 30... Rc8 31. Rc5 { Black had reckoned on recapturing with the Rook, but now finds this impractible } 31... bxc6 {The Black d-pawn is no longer isolated, but instead Black is saddled with an isolated a-pawn, together with a backward c-pawn. These two handicaps between them are quite decisive} (31... Rxc6 32. Rxd5 Rc1+ 33. Ke2 Rc2+ 34. Rd2) 32. Ke2 Ke7 33. Kd3 Kd6 34. Ra5 Ra8 35. Kd4 f5 36. b4 Rb8 37. a3 Ra8 38. e4 fxe4 39. fxe4 dxe4 40. Kxe4 Ra7 41. Kf4 h6 42. h4 Ke6 43. Kg4 Ra8 44. h5 g5 45. g3 Ra7 46. Kf3 Ra8 47. Ke4 Ra7 48. Kd4 Kd6 49. Ke4 Ke6 50. Re5+ Kd6 51. Re8 c5 52. Rd8+ Kc6 53. Rc8+ Kb6 54. Rxc5 Rh7 55. Re5 Kc6 56. Re6+ Kb5 57. Kf5 Rf7+ 58. Rf6 1-0