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Subject: Re: Wanted: Deep Blue vs. today's top programs recap

Author: Joshua Lee

Date: 09:19:46 08/27/01

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On August 27, 2001 at 04:46:06, Uri Blass wrote:

>On August 27, 2001 at 04:33:31, Uri Blass wrote:
>
><snipped>
>>for comparison Here is Deeper blue's logfile
>>
>>Guessing Nd2
>> 7(4) #[O-O](10)##############################################[h5](18)# 18  T=1
>>Ph7h5 qd1e2 Qd8d6 pa2a3 Bb4a5 o-o Ba5d2n bc1d2B
>> 8(6) #[h5](-2)##[O-O](0)############################################ 0  T=11
>>O-O o-o Bb4c5 nd2f3 Ne5f3n bg2f3N
>> 9(6) #[O-O](-3)#########<ch> 'nd2'
>>[153 sec (main.c:1849)][cont]###################################### -3  T=39
>>O-O o-o Bb4d6 nd2b3 Nf6d5 ph3h4 Ph7h6
>>10(6) #[O-O](-15)######[h5](-5)######################################### -5
>>T=151
>>Ph7h5 qd1e2 Ne5g6 pc2c3 Bb4e7 nd2e4 Ph5h4 bc1e3 Qd8a5 pg3g4
>>11(6)[TIMEOUT] -5  T=178
>>Ph7h5
>>---------------------------------------
>>-->  11. ..   h5 <-- 29/101:33
>>
>>you can see that deeper blue needed 151 seconds to see 11...h5 and the
>>main line of Junior at depth 16 is
>>the same as deeper blue's in the first 4 plies.
>
>Junior7 agrees even on the first 5 plies after more time at depth 18
>and here is the analysis at depthes 17,18
>
>1...h5 2.Qe2 Qc7 3.d4 Ng6 4.c3 Be7 5.Ne4 h4 6.Nxf6+ gxf6 7.gxh4 Rxh4 8.Be4
>  =  (0.13)   Depth: 17   00:05:55  184488kN
>1...h5 2.Qe2 Ng6 3.c3 Be7 4.h4 Qc7 5.Nf3 0-0-0 6.Be3 Qa5
>  =  (0.09)   Depth: 18   00:17:08  529639kN
>
>(Blass, Tel-aviv 27.08.2001)
>
>Uri

Uri I looked at the logs and Deep Blue saw h5 in it's search after White's 8th

 10  T=34
Ne5f3b qd1f3N Qd8b6 nb1c3 Ng8f6 ra1b1 Bf8c5 bc1f4 O-O nc3a4 Qb6b4
 3(4) -2  T=0
Qd8a5 nb1d2 Pd5e4p pd3e4P O-O-O
 4(5) 7  T=0
Pd5e4p bg2e4P Ng8f6 o-o Nf6e4b pd3e4N
5(5)[dxe4](7) 7  T=0
Pd5e4p bg2e4P Ng8f6 o-o Nf6e4b pd3e4N
 6(5) [dxe4](10) 10  T=0
Pd5e4p bg2e4P Ng8f6 o-o Nf6e4b pd3e4N
 7(5) #[dxe4](26)######################################### 26  T=2
Pd5e4p bg2e4P Ng8f6 o-o Nf6e4b pd3e4N Bf8d6
8(6) #[dxe4](21)######################################### 21  T=4
Pd5e4p bg2e4P Ng8f6 be4g2 Bf8b4 nb1c3 O-O
9(6) #[dxe4](31)######################################### 31  T=13
Pd5e4p bg2e4P Ng8f6 be4g2 Bf8c5 qd1e2 Qd8d4 bc1f4
10(6) #[dxe4](20)######################################### 20  T=59
Pd5e4p bg2e4P Ng8f6 be4g2 Bf8d6 o-o Qd8b6 nb1c3 O-O-O qd1d2

11(6) #[dxe4](22)#[TIMEOUT] 22  T=174 Pd5e4p bg2e4P Ng8f6 be4g2 Bf8b4 nb1d2
Ph7h5!!!!! qd1e2 Qd8d6 pa2a3 Bb4a5
 ---------------------------------------
-->  8. ..   dxe4 <-- 32/107:53
---------------------------------------

I am curious about a few things in the logs maybe you can explain.
for 1 i noticed that when a move is going to be played it would be in the Pv
however : In game 6
 7.   N1f3 <-- 33/111:6
---------------------------------------
Guessing Bd6
 7(4) #[Qe2](29) 29  T=1
qd1e2 Ph7h6 ng5e4 Nf6e4n qe2e4N
 8(6) #[Qe2](29) 29  T=4
qd1e2 Ph7h6 ng5e4 Nf6e4n bd3e4N Nd7f6 be4d3 Bc8d7 bc1e3
 9(6) #[Qe2](29) 29  T=6
qd1e2 Ph7h6 ng5e4 Nf6e4n bd3e4N Nd7f6 be4d3 Bc8d7 bc1e3
10(6) #[Qe2](31) 31  T=40
qd1e2 Ph7h6 ng5e4 Nf6e4n bd3e4N Qd8c7 bc1d2 Nd7f6 be4d3 Bc8d7

11(6)<ch> 'h6'
---------------------------------------
--> Ph7h6 <--
---------------------------------------
 31  T=93
qd1e2
---------------------------------------
-->  8.   Nxe6 <-- 32/111:1
---------------------------------------
Guessing fxe6
 3(4)[Bg6](-30) -30v T=0
bd3g6 Ke8e7 bc1h6P Pg7h6b pc2c3
 3(5) -54  T=0
bd3g6 Ke8e7 bc1h6P Pg7h6b pc2c3
 4(5) -24^ T=0
bd3g6 Ke8e7 bc1h6P Pg7h6b pc2c3

Notice the time given 50 seconds between 7.N1f3 111:6
 and 8 Nxe6 111:1
The line before black's move was entered said 40 seconds
10(6) #[Qe2](31) 31  T=40 <--------------
qd1e2 Ph7h6 ng5e4 Nf6e4n bd3e4N Qd8c7 bc1d2 Nd7f6 be4d3 Bc8d7

However after this
11(6)<ch> 'h6'
---------------------------------------
--> Ph7h6 <--
---------------------------------------
 31  T=93
qd1e2
Where is this extra time comming from and why doesn't it reflect this on move
8??  I can't say that IBM cheated but things like this do not look really good.
If this single move was in book how come Deep Blue didn't search it like it did
other book moves? or am i wrong about this?

Also i had looked at Game 2 why wouldn't Deep Blue find Qe3 in it's search after
about 10 seconds???? It didn't even show up on the previous move.





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