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21... Rb8 22. Bb5
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This seemed a strong move tactically and strategically, offering the exchange of light-squared bishops. However black found a strong reply. |

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22... Bc6
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Exclamation mark! |

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23. dxc6
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Probably the weakest of the possible continuations. This move was made after a long gap, and to be honest I had forgotten my own analysis. |

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23... Qxc7 24. Qd3 bxc6 25. Bc4 Rbd8 26. Rd1
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Not so much to save the knight as to challenge for control of the file. |

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26... Kh7 27. Ba3
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Developing - apparently awkwardly, but with some threats down the diagonal. |

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27... Ne8 28. b5
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I had accepted I was going to lose the knight, and the tactical sequence initiated here was supposed to bring me compensation. It turned out not to be good, and adhering to it blinded me to several not particularly difficult better moves during the coming phase. Another factor in this phase was a loss of morale at the overturning of my apparent advantage from the opening. |

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28... c5 29. b6
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Nxe8 would have saved the knight. |

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29... Qxd6 30. Qxd6
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Again, missing the not so difficult 30.Qc3!? |

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30... Nxd6 31. Rxd6 Rxd6 32. Bxc5 Rd7 33. b7 Rb8
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The simple move that puts a stop to white's ambitions. |

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34. Ba6 Nc6 35. Rb6 Na5 36. Bd6
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Not there fast enough. There is nothing for it now but to cut my losses. |

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36... Rbxb7 37. Bxb7 Rxb7 38. Rxb7
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There was no good way of keeping the rooks on the board. |

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38... Nxb7
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White is a piece down for the endgame. However his bishop is much better than black's, and the pawn structure holds out a slim hope for a fortress. |

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39. Bc7
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Keeping the black bishop tied down to the defence of e5. |

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39... Nc5 40. Kf2 Kg6 41. Ke2 Ne6
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Heading for a strong outpost on d4. |

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42. Bd6 Nd4+
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The white king is now tied down to f2. |

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43. Kf2 Kf6 44. Bc5 Ke6
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I had entertained the possibility of playing for a pawn overlap with fg once the black king moved away from the kingside. However I decided this gave no real chances, and went instead for an attempted fortress. |

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45. h3
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The crucial move in white's defensive plan. If black plays ...g3 it already looks like a fortress, while exchanging on f3 or h3 still leads to a position that is not easy to break down. |

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45... gxh3 46. gxh3 Kf6
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Black's king changes direction and heads for the h3 pawn, a mistaken plan in my view. |

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47. Kg2 Kg5 48. Bb4
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There is the nice possibility here of black allowing himself to be mated, after ...Kh4, Be7 :) |

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48... Bf6
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...but Black makes sure that isn't going to happen. |

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