Author: David Dahlem
Date: 10:29:53 01/01/06
Go up one level in this thread
On January 01, 2006 at 10:31:07, Sune Larsson wrote:
>Thanks David and Peter! This was excellent stuff. I thought there would be some
>documentation and history surrounding these positions. These evaluations of the
>Nunn positions are of course important to have in mind when we look at the
>results from the engines. Much appreciated! :-)
>
>/S
Hi Sune
I found a difference in one Nunn position in your suite and in my pgn. In your
position 2, the white king is on d4 with black to move. My pgn has the white
king on d3 with white to move. I don't know which one is correct. :-)
8/1pk3pp/p7/3p1p2/3K4/6P1/PP2PP1P/8 b - - c0 "From John Nunn"; id "Sune Larsson
endgame 02";
[Event "1/99-60 Budapest"]
[Site "Budapest"]
[Date "1952.??.??"]
[Round "?"]
[White "NET02: Barcza"]
[Black "Golombek"]
[Result "*"]
[Annotator "John Nunn"]
[SetUp "1"]
[FEN "8/1pk3pp/p7/3p1p2/8/3K2P1/PP2PP1P/8 w - - 0 1"]
[PlyCount "0"]
[EventDate "1952.??.??"]
{This endgame certainly favours White. Black's pawn structure is inferior
because of the isolated d-pawn, while White's king is the first to occupy the
fourth rank. White has the obvious plan of putting his king on d4 followed by
using zugzwang to penetrate with his king to c5 or e5. This was in fact the plan
adopted by Barcza in the game, but accurate defence by Golombek enabled him to
hold the draw. Later (in 1966) Bondarevsky analysed the ending and concluded
that White could win with a different and far from obvious plan: playing Ke3,
threatening Kf4 and inducing Black to weaken his kingside pawn structure further
by playing ...g5. It is hard to say whether this is correct, but at any rate it
is clear that this position is finely poised between a draw and a win.} *
Regards
Dave
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