29. Nd5 29. Kf3 instead of 29.Nd5, but the lines ultimately transpose. The real mistake was Kramnik's 30.a4?, which wasted precious time to improve the king. 29... Bd4 30. a4? 30. Kf3! b5 31. e3 Bc5 32. Ke2 e4 (32... Kg6 33. Nc7 b4 34. Kd3 Kg5 35. Kc4 Bd6 36. Nd5 Kg4 37. Nxb4 Kf3 38. a4 Kxf2 39. a5 Bb8 40. Nc6 Bc7 41. a6 Bb6 42. Nxe5) 33. Kd2 Kg6 34. Kc3 Kg5 35. Nc7 Kg4 (35... b4+ 36. Kc4 Bd6 37. Nb5 Be7 38. h3 h5 39. Nd4 Bd6 40. Kb5 Kf6 41. h4) 36. Nxb5 Kf3 37. Kc4 Bb6 38. Nd4+ Kxf2 39. Nxf5 Kf3 40. Kd5 Bxe3 41. Nh4+ Kg4 42. Kxe4 Bb6 and only now the time has come for 43. a4 So far my main line. Matthias Feist gives the instructive 43... Bd8 44. Ng2 Kh3 45. Nf4+ Kg4 (45... Kxh2 46. g4 Kg3 47. Kf5 Kh4 48. Ng2+ Kh3 49. Ne1 Kg3 50. g5 Kh4 51. Ng2+ Kg3 52. Nf4 Kh4 53. Nd5) 46. Ke3 Bb6+ (46... h5 47. Ng2 Bb6+ 48. Ke2 Ba5 49. Kf2 Bd8 50. h3+ Kf5 (50... Kxh3 51. Kf3) 51. Kf3) 47. Ke2 Bd8 48. Kf2 Kf5 49. Kf3 to prove White's win. Or can a reader find a flaw in the reasoning? 30... Bc5 31. h3 f6 32. f3 Kg6 33. e4 h5 34. g4 hxg4 35. hxg4 fxe4 36. fxe4 Kg5 37. Kf3 Kg6 38. Ke2 Kg5 39. Kd3 Bg1 40. Kc4 Bf2 41. Kb5 Kxg4 42. Nxf6+ Kf3 43. Kc6 Bh4 44. Nd7 Kxe4 45. Kxb6 Bf2+ 46. Kc6 Be1 47. Nxe5 1/2-1/2 [Karsten Müller]