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Subject: Re: Question for Robert Hyatt about Deep Blue moves

Author: Uri Blass

Date: 10:52:04 10/11/02

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On October 11, 2002 at 13:14:55, Vincent Diepeveen wrote:

>On October 11, 2002 at 11:03:19, Uri Blass wrote:
>
>DIEP needs 9 ply to see the KRP KRP endgame (so winning
>the pawn on e5).

You must have a lot of extensions to see it only at 9 plies.

1...h3 2.Rh6 a3 3.Rh8+ Ke7 4.Rh7+ Ke8 5.Rxh3 Ra4 6.Rh8+ Ke7 7.Rh7+ Ke8
8.Rh1 a2 9.Ra1 Ke7 10.Ke5 Ra5+ 11.Kd4

If I count only no check moves I get 14 plies even with checks in the qsearch.

1...h3(1 ply)
2.Rh6(second ply)
2...a3(third ply)
3...Ke7(4th ply)
4...Ke8(5th ply)
5.Rxh3(6th ply)
5...Ra4(7th ply)
6...Ke7(8th ply)
7...Ke8(9th ply)
8.Rh1(10th ply)
8...a2(11th ply)
9.Ra1(12th ply)
9...Ke7(13th ply)
10.Ke5(14th ply)

rest qsearch.


Uri



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