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Boris Grachev vs David Navara
European Championship (2009), Budva MNE, rd 9, Mar-15
Indian Game: London System (A48)  ·  1/2-1/2

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Mar-15-09  belgradegambit: I actually had the Black side of this ending in an online blitz game recently. I knew it was a theoretical draw but not the entire method. I made sure to keep "checking distance" with my rook and when the choice was forced of f or h file for the king I went h. I did draw it. Anyone have an online link to playing this endgame?
Mar-16-09
Premium Chessgames Member
  tamar: Not a specialized site, but the Nalimov tablebases are fascinating to use. http://www.k4it.de/index.php?topic=...

After 53...Rg7 54 h6 was wrong

The only move to win was 54 Rg4 keeping the rook off the h file and preparing to guard the pawn on h5 with Rg5.

Mar-16-09  slomarko: it is very interesting to reply this position with the Nalimov tablebases.


click for larger view

in this position Navara played the wrong 52...Ke7 <according to tablebases only 52...Rh1 draws.> 53.h5 Rg7 <the best try according to the tablebases: it losses in 41 moves other moves lose in 32 or less moves)


click for larger view

54.h6 <error Rg4, Rf5, Re4, Rd4, Rc4, Rb4, Ra4, Ke4 all win> Rh7 <the only move which draws> 55.Rh4 Ke7 56.Kg4 Kg8 <the only move which draws>

Jun-13-09  Karpova: Mark Dvoretsky gives 48.Rxg4 a question mark and says: <White wins after 48.Kd5! Rxf2 49.Rxg4 Kc7 50.Ke6! Rh2 51.Rd4, although it’s not an easy win to demonstrate.>

See diagram:


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Source: Mark Dvoretsky's "The Instructor" from June 2009 (title "Solid Endgame Knowledge") Link: http://www.chesscafe.com/text/dvore...

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