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Subject: Re: Testposition for all - except Junior

Author: Mihaly Szalai

Date: 14:08:59 09/26/03

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On September 26, 2003 at 16:36:02, John Merlino wrote:

>On September 26, 2003 at 15:55:20, Mihaly Szalai wrote:
>
>>On September 26, 2003 at 15:33:53, John Merlino wrote:
>>
>>>On September 26, 2003 at 14:00:19, Mihaly Szalai wrote:
>>>
>>>>
>>>>
>>>>Thank you, John. You may find interesting that The King is faster
>>>>in solving this position under the Fritz GUI (with the Malin
>>>>adapter, default settings) on my slower machine (Celeron 1.7 Ghz).
>>>>Here is the output from Fritz and below that is the output from
>>>>the CM 9000 GUI.
>>>>
>>>>
>>>>New game
>>>>8/7p/6pP/1B4P1/pp6/1k1K4/8/8 w - - 0 1
>>>>
>>>>Analysis by The King 3.23d:
>>>>
>>>>1.Be8 a3 2.Bxg6
>>>>  µ  (-0.88)   Depth: 3   00:00:00
>>>>1.Bc4+ Kb2 2.Bg8 a3 3.Bxh7
>>>>  ł  (-0.70)   Depth: 3   00:00:00
>>>>1.Bc4+ Kb2 2.Bg8 a3 3.Bxh7
>>>>  ł  (-0.70)   Depth: 4   00:00:00
>>>>1.Bc4+ Kb2 2.Bf7 a3 3.Bxg6 a2 4.Bxh7 a1Q
>>>>  -+  (-2.23)   Depth: 5   00:00:00
>>>>1.Be8 a3 2.Bxg6 a2 3.Bxh7 a1Q 4.g6
>>>>  -+  (-2.09)   Depth: 5   00:00:00
>>>>1.Be8 a3 2.Bxg6 Kb2 3.Bxh7 a2 4.Kc4 a1Q 5.Kxb4
>>>>  µ  (-0.75)   Depth: 6   00:00:00  6kN
>>>>1.Be8 a3 2.Bxg6 Kb2 3.Bxh7 a2 4.Kc4 a1Q 5.Kxb4
>>>>  µ  (-0.75)   Depth: 7   00:00:00  14kN
>>>>1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8Q a1Q 5.Qxa1
>>>>  =  (0.00)   Depth: 8   00:00:00  36kN
>>>>1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8Q a1Q 5.Qxa1
>>>>  =  (0.00)   Depth: 9   00:00:00  70kN
>>>>1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8Q a1Q 5.Qxa1
>>>>  =  (0.00)   Depth: 10   00:00:00  139kN
>>>>1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8Q a1Q 5.Qxa1
>>>>  =  (0.00)   Depth: 11   00:00:01  256kN
>>>>1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8Q a1Q 5.Qxa1
>>>>  =  (0.00)   Depth: 12   00:00:02  492kN
>>>>1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8Q a1Q 5.Qxa1
>>>>  =  (0.00)   Depth: 13   00:00:04  962kN
>>>>1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8Q a1Q 5.Qxa1
>>>>  =  (0.00)   Depth: 14   00:00:09  2001kN
>>>>1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8B Ka3 5.Kc2 b3+ 6.Kc1 Ka4 7.Kb2 Kb4 8.Bg7 Kc4
>>>>9.Ka3 Kc5 10.Kxb3
>>>>  ±  (0.98)   Depth: 15   00:00:24  5005kN
>>>>1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8B Ka3 5.Kc2 b3+ 6.Kc1 Ka4 7.Kb2 Kb4 8.Bg7 a1Q+
>>>>9.Kxa1 Kb5 10.Kb2 Kb4 11.Be5 Kc4
>>>>  +-  (1.86)   Depth: 16   00:00:56  11395kN
>>>>
>>>>(Szalai, MyTown 26.09.2003)
>>>>
>>>>CM 9000:
>>>>
>>>>Time	Depth	Score	Positions	Moves
>>>>0:01	8/12	0.00	244835		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
>>>>					a1=Q 5.Qxa1
>>>>0:02	9/13	0.00	459719		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
>>>>					a1=Q 5.Qxa1
>>>>0:04	10/14	0.00	917335		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
>>>>					a1=Q 5.Qxa1
>>>>0:09	11/15	0.00	1887372		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
>>>>					a1=Q 5.Qxa1
>>>>0:20	12/16	0.00	4010653		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
>>>>					a1=Q 5.Qxa1
>>>>0:45	13/17	0.00	8912233		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
>>>>					a1=Q 5.Qxa1
>>>>3:25	14/18	3.11	37142500	1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=B
>>>>					Ka3 5.Kc2 b3+ 6.Kc1 Ka4 7.Kb2 Kb4
>>>>					8.Bg7 Kc4 9.Ka3 Kd5 10.Kxb3 Ke4
>>>>					11.Kxa2 Kf5
>>>
>>>I suspect you are using a different personality than the default, which is what
>>>I used. The depth difference shown above makes this clear, I think....
>>>
>>>jm
>>
>>
>>No, this is the default personality, I checked it.
>>
>>Mihaly
>
>The only other possible difference would be the hash table size, but it
>certainly shouldn't account for an almost 400% difference in speed. I'll check
>my machine at home and make sure it was using 32MB (more than enough for this
>position). How much are you using?
>
>jm

I used 64 MB.
I also checked the position with other CM personalities under the Fritz GUI.
E.g. the SKR found the solution after 7 and a half minutes.

Mihaly



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