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17. f3
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Seeing the exchange now, white decides to contend the center. |

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17... Bc5
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As pxp gets white what he wants, black will mix it up with Bc5 preventing the knight from moving by way of a pin on the rook. Bd6 was also good but this gives white something to think about. |

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18. fxe4 fxe4
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Now if white does Rxp, then Qg5 is strong for black as it puts all his forces aimed at the white king and an overwhelming attack follows. |

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19. Rg3
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Trying for a counter offense. |

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19... Bxd4+ 20. Kh1
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If pxB then Qxp and check, andQxR after the king moves. |

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20... Bf2
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Why not as the bishop is guarded after black moves the knight. This makes the rook move to the only good square g5. |

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21. Rxg7
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During the game I referred to this as a Tal sacrifice. Looks speculative, and mentioned to white that it might work if he can be very aggressive on attack after. |

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21... Kxg7
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Lets make white prove it will succeed. |

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22. Ba3
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Good, getting another piece into the fray. |

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22... c5
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Blocking |

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23. Qc2
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Trying to pick off the hanging pawn. |

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23... b5
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White can't afford to lose another piece so he moves the bishop. |

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24. Bb3
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Black could play c4 trapping the bishop but would lose the rook to uncovering. |

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24... Bb7
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This defends the e pawn and puts the bishop on a better diagonal if the e pawn was to move. |

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25. Rf1
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Getting the rook involved. |

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25... e3 26. h3
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He didn't address the g2 attack. But what else is there as his queen and two bishops are busy elsewhere. Rg1 still gets the g2 pawn and an open king. |

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26... Bxg2+ 27. Kh2 Qh4
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Now Black threatens mate at either h3 or g3. If RxB then Qh3, Kg1, Qh1mate.
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The game was interesting after the sac. of the rook. Blacks pieces where better placed for the attack. In hind sight the luft of the rook was probable too early and subjected it to harassment. |

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