Author: K. Burcham
Date: 21:32:44 07/22/02
My Questions:
1. Approximately how much faster was Deep Blue than my 2x1533mhz AMD MP
with 1 Gig Ram, and Hash set at 432 megs? (192 hash with Chess Tiger 14.0)
2. How long will it take my system to reach 36,000,000,000 nodes in this
position, 26.f4,using Deep Junior7, Deep Shredder Paderborn, Fritz7, and Chess
Tiger 14.0?
(not to find this move, only to reach 36,000,000,000 nodes).
My answers:
1. Deep Blue was 100 times faster than my 3066 mhz PC running Deep Junior7, Deep
Blue was 250 times faster than Deep Shredder on my system,
178 times faster than Fritz7, 483 times faster than Chess Tiger 14.0
2. 400 minutes using Deep Junior7.
712 minutes using Fritz7.
1000 minutes using Deep Shredder Paderborn.
1932 minutes using Chess Tiger 14.0.
(4 minutes using Deep Blue)
Some say that Deep Blue could analyze 200,000kns in some positions.
Here is one quote, there are many.
"Who then would have imagined that in 1997 a computer would be examining
200,000,000 chess positions per second and searching to depths of 14 levels
when making a move".(Quote by Monty Newborn Chairman of the ACM Chess Commitee).
In Game 2, Deep Blue played 26.f4.
Lets say Deep Blue was capable of analyzing 150,000kns, in this position.
If Deep Blue took four minutes to play 26.f4. (which it didnt, see logs below)
If this position allowed Deep Blue to analyze 150,000kns.
Then: 150,000kns = 150,000,000ns.
150,000,000n x 60 seconds = 9,000,000,000nodes per minute.
9,000,000,000n x 4 minutes = 36,000,000,000 nodes in four minutes..
Deep Blue for this example, could analyze 36 Billion nodes in four minutes.
If Deep Junior7 took four minutes to play 26.f4.
I know that Deep Junior7 on my hardware is analyzing, in this position,
approximately 1500kns. (this is what is in the engine window)
1500kns = 1,500,000ns.
1,500,000n x 60 = 90,000,000.
90,000,000 x 4 = 360,000,000 nodes in four minutes.
Deep Junior7 for this example can analyze 360,000,000 in four minutes.
Below we can see Deep Junior7 eval shows 419732kn in 4:35 minutes.(275 seconds).
419732kn = 419,732,000nodes in 275 seconds = 1526kns.
Deep Blue 36,000,000,000 nodes in four minutes. 150,000kns
Deep Junior7 360,000,000 nodes in four minutes. 1500kns
Fritz7 201,600,000 nodes in four minutes. 840kns.
Deep Shredder 120,000,000 nodes in four minutes. 500kns.
Chess Tiger 14.0 74,400,000 nodes in four minutes. 310kns.
Eval taken from Deep Junior7 on my PC in this position. Deep Blue to move
26.f4.
26.axb5 axb5
² (0.70) Depth: 22 00:04:35 419732kN
[D] r1rq1bk1/3b1ppn/p2p3p/1p1Pp3/PPp1P3/R1P1B1NP/2B1QPP1/R5K1 w - - 0 1
The logs show that 26.f4 was seen by Deep Blue before move 25. It also shows
that Kasparov
made the move Deep Blue was expecting, 25...Qd8.
25. Rca1 <-- 15/89:24 --------------------------------------- hash guess
Qc7d8,Guessing Qd8 8(4) #[f4](30)[f4](30) 30^ T=0
pf2f4 Pe5f4p be3f4P Nh7f6 qe2f2 Pa6a5 pb4a5P 8(6)
#[f4](43)######################################### 43
T=2 pf2f4 Pe5f4p be3f4P Nh7f6 qe2f2 Pa6a5 pb4a5P 9(6) #[f4](43)## 'qd8' [221 sec
(main.c:1847)][cont]####################################### 43 T=33 pf2f4
Pe5f4p be3f4P Nh7f6 qe2f2 Pa6a5 pb4a5P
10(6) #[f4](41)##################[Kh2](42)#######[Bd1](45)############### 45
T=119 bc2d1 Nh7f6 qe2a2 Ra8b8 pa4b5P
Pa6b5p bd1f3 Pg7g6 11(6) #[Bd1](43)#[f4](46)[TIMEOUT] 46 T=234 pf2f4 Pe5f4p
be3f4P Rc8b8 bf4e3 Bf8e7 pa4b5P Pa6b5p be3a7
Rb8b7 --------------------------------------- --> 26. f4 <-- 14/85:39
--------------------------------------- hash guess Pe5f4p,Guessing exf4
8(4) #[Bxf4](
kburcham
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