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Zhu Chen vs Natalia Pogonina
North Urals Cup (2007)  ·  Blumenfeld Countergambit: Accepted (E10)  ·  1/2-1/2
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Kibitzer's Corner
Jul-24-07
Premium Chessgames Member
  WannaBe: White can't convert the 2 pawn advantage? Or is it just good play by black?
Jul-24-07  nescio: <WannaBe> Once again it is confirmed that K+R+RP+BP can't win against K+R. According to endgame theory it's a draw, but grandmasters will often try just the same, and we benefit from their will to win.
Jul-24-07  arunjangity: hmm, wonder if zhu chen was actually the one who insisted in playing on in Nakamura vs Zhu Chen, 2004 ...at least marmot's comment there supports that theory
Jul-24-07
Premium Chessgames Member
  WannaBe: <nescio>, <arunjangity> Thank you, one would 'think' that with 2 pawn adv. even if you sac one of the pawn, and force your focus to defend/protect/promote the other, it would be queened.
Jul-26-07  nescio: The problem is that many positions with one pawn are drawn. One of them we see here.

With BP and RP, the weaker side has to avoid that his king is forced to his back rank, as in Capablanca vs B Kostic, 1919

A classic example of perfect play: Gligoric vs Smyslov, 1947

Aug-01-07  ztnepres: white had the game.. but blew it
Jan-20-08  Resignation Trap: Since the game http://www.chessgames.com/perl/ches... earlier this week, I've been looking at this particular endgame with great interest.

With the help of this tablebase: http://www.shredderchess.com/online... I'll examine the key positions of this game.

Black plays the endgame correctly until


click for larger view

Her 69...Kg6? loses,
69...Rc1 is the only move to draw.

The game is now a forced win for White, but she doesn't seem to know how to do it.

Eventually, we arrive here:


click for larger view

White errs with 80.Rd6? Kg7 81.Rd7+ and now Black returns the favor with 81...Kf6? (81...Kh8 draws). And White again replied with 82.Rd6+?

The most straightforward win for White is 82.Kd4 Kg6 83.Re7 Rd8+ 84.Ke4 Kf6 85.Rd7 Rc8 86.Kf3 Kg6 87.Kg4 Rb8 88.f5+ Kf6 89.Kh5 Kxf5 90,Rf7+ Ke6 91.Kg6 Ke5 92.Kg7 and the Pawn Queens.

Jan-20-08
Premium Chessgames Member
  whiteshark: <Resignation Trap> Do you have "Rook Endings" by Levenfish/Smyslov? In chapter three R vs R+PP, subchapter disconnected pawns, are some more examples (see also chapter 'Conclusion' - no.5)
Jan-20-08  Resignation Trap: <whiteshark> No, I don't have that particular book, but I'm compiling other example of this endgame in my collection: Game Collection: Oh, Those Effin' Aitch Pawns in Rook Endgames! . I'm looking at missed opportunities for winning and typical errors in defending.
Aug-17-08  just a kid: My guess is they were both in time trouble on move 80.

Grandmaster Pogonina's Website
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