Author: Christophe Theron
Date: 16:39:43 03/29/02
Go up one level in this thread
On March 29, 2002 at 07:33:34, Ed Schröder wrote:
>Dear CCC,
>
>This posting is dedicated to Thorsten in the first place being the absolute
>opponent against statistics. He might change opinions after this conclusive
>posting, Thorsten you will love this one!
>
>It's also dedicated to those who still believe that there is no performance
>increase/decrease when playing on different time controls. (Hi Christophe!)
That's not exactly what I believe.
I believe that it is possible to write a chess program that will be the best at
any time control.
That's the direction I am try to follow, and that's why I take into account the
performance of my program at all time controls, including blitz on very slow
hardware (old 386 or Palms).
I also consider that a program that is good only at a given time control has a
serious problem.
Christophe
>The below data is taken from the latest SSDF list and measures the differences
>between the used hardware, that is Athlon 1200 Mhz versus the AMD 450, roughly
>being a factor of 3.
>
> 2 Chess Tiger 14.0 CB 256MB Athlon 1200 2714 34 -33 460 63%
>2619 +82
> 13 Chess Tiger 14.0 CB 128MB K6-2 450 MHz 2632 30 -29 585 65% 2526
>
> 3 Deep Fritz 256MB Athlon 1200 MHz 2709 34 -33 447 63%
>2617 +55
> 9 Deep Fritz 128MB K6-2 450 MHz 2654 24 -23 901 62% 2568
>
> 4 Gambit Tiger 2.0 256MB Athlon 1200 2708 37 -36 381 61%
>2626 +67
> 11 Gambit Tiger 2.0 128MB K6-2 450 MHz 2641 30 -29 592 66% 2522
>
> 6 Junior 7.0 256MB Athlon 1200 MHz 2684 34 -33 436 58%
>2630 +53
> 14 Junior 7.0 128MB K6-2 450 MHz 2631 28 -26 717 67% 2505
>
> 7 Rebel Century 4.0 256MB Athlon 1200 MHz 2680 36 -35 407 63%
>2587 +104
> 21 Rebel Century 4.0 128MB K6-2 450 MHz 2576 68 -70 105 46% 2606
>
> 8 Shredder 5.32 256MB Athlon 1200 MHz 2662 32 -31 498 56%
>2619 +56
> 17 Shredder 5.32 128MB K6-2 450 MHz 2606 31 -30 545 62% 2521
>
> 10 Gandalf 4.32h 256MB Athlon 1200 MHz 2649 34 -33 430 54%
>2621 +130
> 32 Gandalf 4.32h 128MB K6-2 450 MHz 2519 36 -36 378 53% 2499
>
>Based on the above comparison the 2004 SSDF list running on 3600 Mhz hardware
>might looks as follows:
>
> 1. Chess Tiger 14.0 CB 256MB Athlon 1200 2714 + 82 = 2796
> 2. Rebel Century 4.0 256MB Athlon 1200 MHz 2680 + 104 = 2784
> 3. Gandalf 4.32h 256MB Athlon 1200 MHz 2649 + 130 = 2779
> 4. Gambit Tiger 2.0 256MB Athlon 1200 2708 + 67 = 2777
> 5. Deep Fritz 256MB Athlon 1200 MHz 2709 + 55 = 2764
> 6. Junior 7.0 256MB Athlon 1200 MHz 2684 + 53 = 2737
> 7. Shredder 5.32 256MB Athlon 1200 MHz 2662 + 56 = 2718
>
>I love this list :)
>
>Unknown entries because of no comparison material.
>
> 1 Fritz 7.0 256MB Athlon 1200 MHz 2748 38 -35 395 68% 2616
> 5 Shredder 6.0 256MB Athlon 1200 MHz 2706 37 -36 379 61% 2626
> 16 Crafty 18.12/CB 256MB Athlon 1200 MHz 2613 33 -32 459 54% 2587
> 23 Nimzo 8.0 128MB K6-2 450 MHz 2554 24 -24 824 53% 2531
> 29 Hiarcs 7.32 128MB K6-2 450 MHz 2526 21 -22 1051 48% 2537
> 34 Chessmaster 8000 128MB K6-2 450 MHz 2517 44 -45 251 45% 2550
>
>A couple of notes:
>
>1) Rebel Century 4 (AMD-450) has played to less games yet (105) to make it a
>reliable comparison. However the result (+104) doesn't surprise me, Rebel is
>tuned for longer time controls.
>
>2) It has to be seen if Fritz7 and Shredder6 have not improved playing on faster
>hardware. Since there is no comparison material yet this remains unknown for the
>moment.
>
>3) I don't think the above is a scientific conclusion, neither a 100% valid
>prediction, but IMHO it isn't 100% nonsense also.
>
>4) You are invited to shoot the above into pieces.
>
>Ed
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