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Subject: Re: Sometimes they go 'boom'

Author: John Merlino

Date: 13:45:28 09/20/02

Go up one level in this thread


On September 20, 2002 at 16:37:38, Will Singleton wrote:

>On September 20, 2002 at 16:23:53, John Merlino wrote:
>
>>>1:52	13/17	-1.54	11346643	1...Ba4 2.Bd1 Kd3 3.e5 Kd2 4.Bf3
>>>					Kc2 5.e6 Kxb2 6.Kg4 Kc1 7.Be4 b2
>>>					8.Kh4 Bc6 9.Bd3 b1=Q 10.Bxb1 Kxb1
>>>3:58	14/18	-1.56	23785267	1...Ba4 2.Bd1 Kd3 3.e5 Kd2 4.Bf3
>>>					Kc2 5.e6 Kxb2 6.Kg3 Kc1 7.Be4 b2
>>>					8.Kh4 Bc6 9.Bd3 b1=Q 10.Bxb1 Kxb1
>>>					11.Kg4
>>>
>
>>Here's what my wonderful new P4-2.66 says:
>>
>>0:24	13/17	-1.56	9124305		1...Ba4 2.Bd1 Kd3 3.e5 Kd2 4.Bf3
>>					Kc2 5.Be4+ Kxb2 6.e6 Kc1 7.Kg4
>>					b2 8.Kh4 Bc6 9.Bd3 b1=Q 10.Bxb1
>>					Kxb1 11.Kg4
>>0:42	14/18	-1.56	16053836	1...Ba4 2.Bd1 Kd3 3.e5 Kd2 4.Bf3
>>					Kc2 5.e6 Kxb2 6.Kg3 Kc1 7.Be4 b2
>>					8.Kh4 Bc6 9.Bd3 b1=Q 10.Bxb1 Kxb1
>>					11.Kg4
>
>Why are the node counts different?

Because I'm stupid.... Well, not exactly -- let's just say I confused myself.

We are working on a French version of Chessmaster, so I re-installed the program
and the user that I logged in as was using the default of 4MB hash table size
for the PIII-600 version, instead of the 32MB I used for the P4-2.66 version.
Here is what the PIII-600 says with 32MB of hash (same node count, but
noticeably faster than the 2MB version):

Time	Depth	Score	Positions	Moves
0:00	3/7	-0.38	4743		1...Bc6 2.Bd1 Ba4 3.Be2 Be8 4.Bf3
					Bb5
0:00	4/8	-0.36	10780		1...Bc6 2.Bd1 Ba4 3.Kf3 Ke5 4.Ke3
					Be8 5.Bxb3 Bxh5
0:00	4/8	-0.43	19865		1...Bf7 2.Bd1 Bc4 3.Bg4 Bd3 4.Bd1
					Bc2 5.Bf3
0:00	5/9	-0.44	26752		1...Bf7 2.Bd1 Kd3 3.e5 fxe5+ 4.Kxe5
					Kd2 5.f6 Kxd1 6.fxg7 Bg8
0:01	6/10	-0.69	67114		1...Bf7 2.Bf3 Kd3 3.e5 fxe5+ 4.Kxe5
					Kc2 5.f6 gxf6+ 6.Kxf6 Kxb2 7.Kxf7
					Kc2
0:01	6/10	-1.48	101882		1...Ba4 2.Bf1 Bc6 3.Be2 Bxe4 4.Bb5
					Bd3 5.Ba4 Bc4 6.Bc6 Be2
0:01	7/11	-1.24	154064		1...Ba4 2.Bf3 Kd3 3.e5 Kc2 4.Be4+
					Kxb2 5.e6 Kc1 6.Ke3 b2 7.Kd4 b1=Q
					8.Bxb1 Kxb1
0:03	8/12	-1.11	243418		1...Ba4 2.Bf3 Kd3 3.e5 Kc2 4.e6
					Kxb2 5.Ke4 Kc1 6.Kd5 b2 7.Be4 b1=Q
					8.Bxb1 Kxb1
0:07	9/13	-1.37	551010		1...Ba4 2.Bd1 Kd3 3.e5 Kd2 4.Bg4
					Kc2 5.e6 Kxb2 6.Ke4 Kc2 7.Be2 Bc6+
					8.Kd4 b2
0:12	10/14	-1.21	1056757		1...Ba4 2.Bf3 Kd3 3.e5 Kc2 4.e6
					Kxb2 5.Ke4 Kc1 6.Kd5 b2 7.Be4 Bb3+
					8.Kd6 Bc2 9.Bxc2 Kxc2
0:23	11/15	-1.39	2150529		1...Ba4 2.Kf3 Bc6 3.Kf4 Bxe4 4.Bb5
					Bd5 5.Bd7 Bc4 6.Be8 Kc5 7.Ke3 Bg8
					8.Bg6 Bd5
0:38	12/16	-1.51	3730489		1...Ba4 2.Kf3 Bc6 3.Kf4 Bxe4 4.Bb5
					Bd5 5.Bd7 Bc4 6.Bc6 Bf7 7.Bf3 Bd5
					8.Be2 Bc4 9.Bf3 Bd3
1:31	13/17	-1.56	9124305		1...Ba4 2.Bd1 Kd3 3.e5 Kd2 4.Bf3
					Kc2 5.Be4+ Kxb2 6.e6 Kc1 7.Kg4
					b2 8.Kh4 Bc6 9.Bd3 b1=Q 10.Bxb1
					Kxb1 11.Kg4
2:37	14/18	-1.56	16053836	1...Ba4 2.Bd1 Kd3 3.e5 Kd2 4.Bf3
					Kc2 5.e6 Kxb2 6.Kg3 Kc1 7.Be4 b2
					8.Kh4 Bc6 9.Bd3 b1=Q 10.Bxb1 Kxb1
					11.Kg4

jm



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