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Subject: Re: Testposition King Safety ( or maybe something else)

Author: Slater Wold

Date: 19:58:31 08/27/01

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On August 27, 2001 at 19:54:00, Peter Berger wrote:

>On August 27, 2001 at 19:40:06, Slater Wold wrote:
>>Takes no time for Deep Shredder to find this on my AMD 1.2Ghz:
>>
>>[+0.21]  d=1   1...Ke8 2.f3 Bxf3 (0:00.00)
>>[-0.00]  d=1   1...Kd6 2.f3 (0:00.00)
>>[-0.00]  d=2   1...Kd6 2.f3 (0:00.00)
>>[-0.00]  d=3   1...Kd6 2.f3 (0:00.00)
>>[-0.00]  d=4   1...Kd6 2.f3 (0:00.00)
>>[-0.00]  d=5   1...Kd6 2.f3 (0:00.00)
>>[-0.00]  d=6   1...Kd6 2.f3 (0:00.00)
>>[-0.00]  d=7   1...Kd6 2.f3 (0:00.00)
>>[-0.00]  d=8   1...Kd6 2.f3 (0:00.00)
>>[-0.00]  d=9   1...Kd6 2.f3 (0:00.00)
>>[+0.74]  d=10   1...Kd6 2.f3 Bxf3 3.Rc2 Bd5 4.Bb4+ Ke5 5.Bd6+ Kf6 6.Rf2+ Qf3
>>7.Rxf3+ (0:01.08)
>>[+0.60]  d=11   1...Kd6 2.f3 Bxf3 3.Qf2 Bxg2 4.Qxg2 Qxg2+ 5.Kxg2 e5 6.Bxe5+
>>(0:02.21)
>>
>>
>>Slate
>
>Are you sure you tried this position without some persistant hashtables or
>position learning active?
>
>I get the following for Deep Shredder on an Athlon 1333 ( and this is still one
>of the better results of the engines I tried ) :
>
>9.01	 0:02 	 0.00 	27...Ke8 28.f3 Lxf3 29.Db8+ Kd7 30.Da7+ Ke8 31.Db8+ (757.067)
>348.2
> 10.01	 0:03 	-0.25-- 	27...Ke8 28.f3 Lxf3 29.g3 Dg5 30.Lb2 f6 31.Tc8+
>(1.145.778) 349.4
> 10.01	 0:04 	-0.75-- 	27...Ke8 28.f3 Lxf3 29.g3 Dg5 30.Ld2 Dh5 31.Tc8+
>(1.472.405) 348.5
> 10.01	 0:15 	-3.36 	27...Ke8 28.f3 Lxf3 29.g3 De4 30.Lxg7 Db7 31.Dxb7 Lxb7
>32.Lxh8 Kd7 33.Td1+ Ld5 34.Lb2 (5.706.171) 370.3
> 10.02	 0:30 	-3.35++ 	27...Kd6 28.f3 Lxf3 29.Db6+ Ke7 30.Lxg7 Dxg7 31.Da7+ Kf6
>32.De7+ Kxe7 33.Tc7+ Ke8 (11.445.970) 376.5
> 10.02	 0:37 	-3.00++ 	27...Kd6 28.f3 Lxf3 29.Db6+ Ke7 30.Lxg7 Dxg7 31.Da7+ Kf6
>32.De7+ Kxe7 33.Tc7+ Ke8 (14.231.948) 380.6

Must have been.  I was using the Chess Assistant 6.1 GUI, and thought I had
cleared the memory.  (I had just fired it up.)  My Shredder 5 GUI results look
exactly like yours.

Shredder 5:
Engine: Shredder 5
by Stefan Meyer-Kahlen
  8.01	 0:00 	 0.00 	1...Ke8 2.f3 Bxf3 3.Qb8+ Ke7 4.Qc7+ Ke8 5.Qc8+ Ke7 6.Qc7+
Ke8 (245.701) 299.2
  9.01	 0:02 	 0.00 	1...Ke8 2.f3 Bxf3 3.Qb8+ Ke7 4.Qc7+ Ke8 5.Qc8+ Ke7 6.Qc7+
Ke8 (650.882) 312.4
 10.01	 0:08 	-0.25-- 	1...Ke8 2.f3 Bxf3 3.g3 Qh3 4.Rc2 Qf5 5.Bb4 Rf8 6.Bxf8 Bg2
7.Rxg2 Qc5+ 8.Qxc5 (2.617.794) 321.5
 10.01	 0:09 	-0.75-- 	1...Ke8 2.f3 Bxf3 3.g3 Qh3 4.Rc2 Qf5 5.Bb4 Rf8 6.Bxf8 Bg2
7.Rxg2 Qc5+ 8.Qxc5 (3.075.193) 321.5
 10.01	 0:49 	-3.28 	1...Ke8 2.f3 Bxf3 3.g3 Qe4 4.Bxg7 Qb7 5.Qxb7 Bxb7 6.Bxh8
Kd7 7.Bf6 Bd5 8.Kf2 h5 (16.815.668) 338.5
 10.02	 0:54 	-3.27++ 	1...Kd6 2.Qxf7 (18.696.936) 340.1


Deep Shredder:
Engine: Deep Shredder
by Stefan Meyer-Kahlen
  8.01	 0:00 	 0.00 	1...Ke8 2.f3 Bxf3 3.Qb8+ Kd7 4.Qa7+ Ke8 5.Qb8+ (200.650)
299.0
  9.01	 0:02 	 0.00 	1...Ke8 2.f3 Bxf3 3.Qb8+ Kd7 4.Qa7+ Ke8 5.Qb8+ (755.191)
314.1
 10.01	 0:03 	-0.25-- 	1...Ke8 2.f3 Bxf3 3.g3 Qg5 4.Bb2 Qh5 5.Rc8+ (1.154.351)
314.0
 10.01	 0:04 	-0.75-- 	1...Ke8 2.f3 Bxf3 3.g3 Qg5 4.Bd2 Qh5 5.Rc8+ (1.405.104)
314.5
 10.01	 0:21 	-3.39 	1...Ke8 2.f3 Qg5 3.Rb1 Bb5 4.Qb8+ Ke7 5.Bb4+ Kf6 6.Qxh8
Qe3+ 7.Kh1 Qd3 8.Bc3+ Kg5 9.Qxg7+ Qg6 10.Rxb5+ Kh4 11.Qxg6 (7.096.610) 328.6
 10.02	 0:36 	-3.38++ 	1...Kd6 2.f3 Bxf3 3.Qb6+ Ke7 4.Bxg7 Qxg7 5.Qa7+ Kf6
6.Qxf7+ Qxf7 (12.179.514) 334.1
 10.02	 0:46 	-3.03++ 	1...Kd6 2.f3 Bxf3 3.Qb6+ Ke7 4.Bxg7 Qxg7 5.Qa7+ Kf6
6.Qe7+ Kxe7 7.Rc7+ (15.631.274) 337.1



Looks like Deep Shredder might not be any smart, but at least it's a little
faster.  :)

Sorry about that.  I thought the hash was cleared.


Slate



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