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Boris Gelfand vs Vladimir Kramnik
16th Amber Tournament (Rapid) (2007) (rapid), Monaco, rd 8, Mar-25
Slav Defense: Quiet Variation. Schallopp Defense (D12)  ·  1/2-1/2

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Mar-25-07  notyetagm: Position after 28 ... ♕d6-c5:


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Here Gelfand (White) played 29 ♗b7-a6. Why? To meet the threat of 29 ... ♕c5x♕b5 by <DEFENDING> his b5-queen with his light-squared bishop.

In this position Gelfand knows that he cannot <COUNT> on his White c3-knight to <DEFEND> his White b5-queen because it is subject to <REMOVAL OF THE GUARD (ILLUSORY PROTECTION)> by ... ♖c4x♘c3. Since White cannot <COUNT> his c3-knight as a defender of his b5-queen, this means that his queen is -effectively- en prise.

In fact, Black is threatening a tactical shot in this position by combining the tactical ideas <REMOVE THE GUARD> and <RUBBERBAND>: 29 ... ♖c4x♘c3! <remove the guard> 30 ♕b5x♕c5 ♖c3x♕c5 <rubberband>, winning a whole piece.

29 ♗b7-a6 meets this threat since now White is <COUNTING> on his light-squared bishop to <DEFEND> his queen and its defense cannot be removed like that of the c3-knight.

A very instructive example by Gelfand of -avoiding- the <REMOVE THE GUARD> tactic by -not- <COUNTING> as a defender a piece (White c3-knight) whose guard can be removed.

Mar-25-07  amuralid: <notyetagm> Any reason for highlighting some words? Just curious.
Mar-26-07  Atking: After 42.Kg1 I think that it's a classical draw. White King has to wait and see. Rook must keep latteral check on (at best) "a" file possible and at least cover the first rank. No progress are possible. Gelfand defended very well to not lost the game with White! Indeed a great performance against Kramnik...
Mar-26-07  elLocoEvans: Gelfand said after the game that he learnt how to draw that position since he was 10 years old. Furthermore he had it once against Karpov.
Oct-03-17
Premium Chessgames Member
  g15713: Position after 60…f3, White to move


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According to FinalGen, a chess endgame tablebase generator for Windows, this is a draw for White. Those with Lomonosov Endgame Tablebases for 7 pieces can verify this.

This position was similar to Gelfand - Karpov game which led to a draw.

'Gelfand vs Karpov, 1992

The great endgame specialist, Poghosyan, analyzed the above Gelfand vs. Karpov game (colors are reversed) years earlier and had come to the same conclusion as FinalGen that the defender draws.

Start with diagram D. 10 - the reading will make more sense

'http://www.chesspub.com/cgi-bin/che...

Mar-26-21
Premium Chessgames Member
  g15713: Typo: Position after 60…f3 <60...f3>, White to move

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Featured in the Following Game Collection[what is this?]
29 Ba6 defends White b5-queen since ... Rc4xNc3 removes guard
from Don't count on defender whose guard is removable by notyetagm

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