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Subject: Re: puzzling endgame

Author: John Merlino

Date: 14:49:16 03/03/02

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On March 03, 2002 at 15:44:41, Jon Dart wrote:

>Recently Arasan had this position against Gandalf on ICC:
>
>[D] 8/p5kp/1pBnP1p1/8/8/P3P3/4K2P/8 w - -
>
>Arasan played e7? here and lost. It had limited time here: it switches
>off e7 pretty quickly, and prefers Kd3, but continues to give White a
>positive score.
>
>On the other hand, a variety of other programs I've tried (Crafty,
>Hiarcs 7, and Pharaon) play e4 here with a negative score for White.
>
>I'd be interested in any comments on this endgame. e7? is a loser,
>but is Black still better if White avoids this?
>
>--Jon

Here's what Chessmaster says:

Time	Depth	Score	Positions	Moves
0:00	5/6	0.29	11360		1.e4 Kf8 2.Kd3 Ke7 3.e5 Nf5
0:00	6/7	0.09	24852		1.e4 Kf8 2.Kd3 Ke7 3.e5 Nf5 4.Bd7
					Ng7
0:00	7/8	0.22	59680		1.e4 Kf8 2.Kd3 Ke7 3.Bd7 b5 4.e5
					Nc4
0:01	8/9	-0.26	156594		1.e4 Kf8 2.Kd3 Ke7 3.e5 Nf5 4.Bd7
					Ng7 5.Ke4 Nxe6
0:02	8/9	-0.15	291263		1.Kd3 Kf6 2.Bd7 Ke7 3.Kd4 b5 4.Kd5
					a5 5.Bc6
0:06	9/10	-0.12	658367		1.Kd3 Kf6 2.Bd7 Ke7 3.Kd4 Nf5+
					4.Ke4 b5 5.Ke5 Nxe3 6.Bxb5 Ng4+
					7.Kf4 Nxh2
0:12	10/11	-0.15	1465984		1.Kd3 Kf6 2.Bd7 Ke7 3.Kd4 h6 4.Kd5
					b5 5.e4 a5 6.e5
0:25	11/12	-0.18	3282649		1.Kd3 Kf6 2.Bd7 Ke7 3.Kd4 Nf5+
					4.Ke4 h6 5.a4 a6 6.h3 b5 7.axb5
					Nd6+ 8.Kd5 axb5
1:00	12/13	-0.18	7869328		1.Kd3 Kf6 2.Bd7 Ke7 3.Kd4 Nf5+
					4.Ke4 h6 5.a4 a6 6.h3 b5 7.axb5
					Nd6+ 8.Kd5 axb5
2:16	13/14	-0.28	17722817	1.Kd3 Kf6 2.Bd7 Ke7 3.Kd4 Nf5+
					4.Ke4 a6 5.a4 b5 6.axb5 axb5 7.Kd3
					Nd6 8.Kc3 h6
5:56	14/15	-0.30	46635573	1.Kd3 Kf6 2.Bd7 Ke7 3.Kd4 Nf5+
					4.Ke4 a6 5.a4 b5 6.axb5 axb5 7.Kd3
					Nd6 8.Kc3 h6 9.Kb4

jm



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