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1. e4
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We are all taught how to exploit basic tactical conditions that allow us to deliver the knock-out shot in our games. And we always see these positions from the winner's point of view. The question I want to pose in this game annotation is the reverse scenario: How is it that the losing player - the player who receives the knock-out - allows the conditions for such a tactical shot to arise? On move 32 Black delivers the tactical shot that, for all intents and purposes, ends the game. But what were the oversights by the losing player (me) that allowed it? That is, what is the anatomy of a tactical oversight? |

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1... d6
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This game was from a Pirc mini-tourney. |

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2. d4 g6 3. f3
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My preferred move for White. |

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3... Bg7 4. Be3 Nc6 5. Bb5 Bd7 6. Ne2 a6 7. Bc4 b5 8. Bd5
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I have no love for the "two bishops" especially when one of them has lots of pawns on its own color complex. |
1 comment
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8... Nf6 9. Bxc6
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Takes. |

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9... Bxc6
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Takes. |

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10. Nd2
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This knight is going to support an expected pawn exchange on c4. |

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10... O-O
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Black is developed. |

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11. c4
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White tries to open the c-file. This was my strategic aim throughout the game. |

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11... bxc4
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Takes. |

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12. Nxc4
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Takes. |

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12... Bb5 13. Rc1
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Now White has the c-file. |

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13... Rb8
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Black is hoping for some action on the b-file, but... |

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14. b3
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...White has more space to work with in this sector of the board so he defends the b-pawn by simply advancing it one square. White has no intention of recapturing with it should black take the knight. |
1 comment
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14... Bxc4 15. Rxc4
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There. The c-file is mine and I now bear down on the backward c7 pawn. So far so good. |

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15... d5
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Black forces a central pawn exchange. |
1 comment
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16. exd5
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Takes. |

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16... Nxd5
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Takes. |

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17. Bf2
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This bishop is doing its job for now as a defensive support to my central d-4 pawn. |

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17... Bh6
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Black tries tactics on the e3 square. |

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