Author: Kurt Utzinger
Date: 02:29:59 01/18/04
Go up one level in this thread
On January 18, 2004 at 04:44:59, martin fierz wrote:
>On January 18, 2004 at 02:27:35, Kurt Utzinger wrote:
>
>>On January 18, 2004 at 01:25:52, Kurt Utzinger wrote:
>>
>>>[D]8/8/5pk1/5b2/7K/3R3p/7P/8 w - - 0 1
>>
>>How on earth should White win this position? I see no way
>>to do this. Some reasons for my assumption:
>>
>>1.)
>>If White at some time takes the h3-pawn with the rook,
>>the pawn ending is a draw.
>>
>>2)
>>The only try would be to win Black's f6-pawn. But
>>this can't be done.
>>
>>3)
>>But even in the case that due to some Zugzwang
>>White wins the f6-pawn, the position still looks
>>drawn.
>>
>>Any counter arguments.
>>Kurt
>
>hi kurt, uri,
>
>this is an interesting position. the first thing to note are a couple of
>theroetically known endgames:
>
>-> if white succeeds in winning both black pawns, he wins
[D]7k/R7/7P/6K1/8/3b4/8/8 w - - 0 1
>
>-> however, if he is careless then, he only draws
>[D]7k/R7/7P/6K1/8/3b4/8/8 w - - 0 1
>
>these two endings are just interesting so i posted them anyway. but they are
>irrelevant. the relevant ending is if white wins the f-pawn:
>
[D]8/8/6k1/5b2/7K/3R3p/7P/8 w - - 0 1
>this is supposed to be a win in endgame theory AFAIK, and that is the
>counter-argument to kurt's argument #3 - if white succeeds in winning f6, he
>will in fact win the game. in addition, the wins of this type of endgame usually
>are very very deep, so even searching this position to 30 or 40 ply might not be
>enough to see the win of the h-pawn.
>
>if somebody has the KRPKBP tablebase and time to spend he could run the original
>position over night and se what happens...
>
>cheers
> martin
Hi Martin
Indeed a very interesting position in which the main
question remains: can White succeed in winning Black's
f6-pawn?
Kurt
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