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20. Rd3
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This causes me pause. If 20. ... Ra-d1, then Rc3 threatening my queen. This gets somewhat dicey, so I decide to chance my target. |

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20... Rxe5
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Noticing that I do have an available check at Qc1 (which is guarded by his Queen), I decide to take the pawn and threaten the Queen. See if I can get him off. |

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21. Qf3
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So now if I move Qc1 , he has Rd1 to block and threaten the queen. |

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21... Nxd4
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Ok, let's get the knights off the board, see if I can open this up a little. |

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22. Rfxd4 Rd8
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Rook at d4 is pinned. I can apply 3 - 2 attackers to defenders on this point. |

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23. b4
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Ok, looked at doing Qb6 to maintain the pin. I must either maintain the pin or check, because if not then 24. Rxd1#. |

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23... Qc1+
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So I decide to check. Some possible lines:
if 24. Kh2 Qe1#
if 24. Qd1 Qxd1 and I can exchange Queens and Rooks, and play for endgame with a king side majority.
if 24. Rd1 Re1 25. Kf2 (Rxe1 Qxe1 26. Qf1 Qxf1 27. Kxf1 Rxd4 and a rook up) Rxd1 which results in a trade off with me a pawn up on king side majority. |

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24. Kf2 Qe1#
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So he didn't see the mate threat. |

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