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Subject: Re: Question? how to read Deep Blue logs

Author: Robert Hyatt

Date: 18:39:18 01/27/02

Go up one level in this thread


On January 26, 2002 at 19:53:17, Shep wrote:

>On January 26, 2002 at 08:43:41, K. Burcham wrote:
>
>I will try to explain a bit, probably Bob can correct me for any mistakes:
>
>>---------------------------------------
>>-->  25.   Rca1 <-- 15/89:24
>>---------------------------------------
>
>This means DB's last move was Rca1, at depth 15, 89:24 remaining until next time
>control.
>
>>hash guess Qc7d8,Guessing Qd8
>
>Qd8 is DB's permanent brain guess.
>
>> 8(4) #[f4](30)[f4](30) 30^ T=0
>
>8 ply depth from main system + 4 ply depth in node processors.
>f4 current best move with eval +0.30 after 0 seconds.



My memory is a bit "fuzzy" here, but this _might_ not be correct.  DT
used pawn=128 for its scoring.  Which means a score of 30 would really
be 30/128 or closer to .24...  but take that with a grain of salt as
DB might have been different, I am certainly not positive...


>
>>pf2f4 Pe5f4p be3f4P Nh7f6 qe2f2 Pa6a5 pb4a5P
>
>The PV in DB's curious notation.
>
>> 9(6) #[f4](43)##<ch> 'qd8'
>
>"Qd8" was entered as opponent's move.
>
>>[221 sec (main.c:1847)][cont]####################################### 43  T=33
>
>221 seconds for opponent to move.
>
>>10(6) #[f4](41)##################[Kh2](42)#######[Bd1](45)############### 45
>>T=119
>
>Two changes of best move, from f4 +0.41 through Kh2 +0.42 to Bd1 +0.45. Ply
>finished with eval +0.45 after 119 seconds.
>
>>11(6) #[Bd1](43)#[f4](46)[TIMEOUT] 46  T=234
>
>Best move changed again at ply 11 (+6 from the chess processors) to f4 at eval
>+0.46. After 234 seconds, maximum allocated search time reached, DB plays its
>move.
>
>>---------------------------------------
>>-->  26.   f4 <-- 14/85:39
>>---------------------------------------
>
>f4 is played at depth 14 (?), 85:39 left to next time control.
>
>---
>Shep



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