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Peter Leko vs Alexander Grischuk
Cap D'Agde FRA (2003) (rapid), rd 5, Oct-25
Spanish Game: Closed Variations (C84)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
Jun-24-04  PinkPanther: Nh4+ forces the loss of white's queen after 37.gxh4 Rg8+ then no matter where the king goes the queen is toast.
Nov-12-06  notyetagm: Black To Play: 36 ... ?


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White has just blundered by meeting the check from the Black d5-queen against the White g2-king by <BLOCKING> with 36 ♕g4-f3??.

Why is this a blunder? When White <BLOCKED> the check with his queen, his queen became both <PINNED> and <LOOSE>. Now the White g2-king is the only White piece that meets the threat of ... ♕x♕ by <DEFENDING> her.

Note that if the White g3-pawn and Black g6-knight were not on the g-file, then Black could <REMOVE THE GUARD> of the <LOOSE> White f3-queen by <DRIVING OFF> the White g2-king with ... ♖g8+. <So the White g3-pawn must stay on the g-file to <BLOCK> the g-file to prevent this threat, since Black might move his g6-knight out of the way with tempo.>

Well, if the White g3-pawn must <BLOCK> the g-file, then it cannot also <DEFEND> the h4-square. Or, as I like to say, <BLOCKING A LINE IS A FULL-TIME JOB>. So Black plays 36 ... ♘h4+!, <FORKING> the White king and queen. If White responds to the knight fork with 37 gxh4, then the g-file is opened and 37 ... ♖g8+ <DRIVES OFF> the White king from <DEFENDING> the White queen.

Position after 36 ... ♘h4+! 37 gxh4 ♖g8+:


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35 ... ♕xd5+ 36 ♕f3?? ♘f4+! 0-1 (37 gxh4 ♖g8+ <remove the guard> and 38 ... ♕x♕)

Sep-12-11  notyetagm: Game Collection: THE UNDERRATED REMOVAL OF THE GUARD -- Heisman
Oct-05-11  notyetagm: Game Collection: GRISCHUK & SVIDLER REMOVE THE GUARD
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This game is type: RAPID. Please report incorrect or missing information by submitting a correction slip to help us improve the quality of our content.

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