Author: Christophe Theron
Date: 12:05:31 03/08/04
Go up one level in this thread
On March 08, 2004 at 06:20:56, Geert van der Wulp wrote:
>On March 08, 2004 at 06:17:40, Tony Hedlund wrote:
>
>>On March 08, 2004 at 05:27:38, Christophe Theron wrote:
>>
>>>On March 07, 2004 at 11:46:26, Chessfun wrote:
>>>
>>>>
>>>>Minimum 70 games to qualify.
>>>>All 3,4 and 5 piece tablebases.
>>>>Native books where made, general.ctg where not.
>>>>Majority 9100+ games over 60 mins.
>>>>Games are autoplayed ponder=on and single PC ponder=off.
>>>>AMD XP 2600+
>>>>
>>>>Hiarcs8 Bareev games at 60' ponder=off using Hiarcs9.ctg
>>>>
>>>>Currently testing Ruffian 2.1 with Lokasoft book.
>>>>
>>>>
>>>> Program Elo + - Games Score Av.Op. Draws
>>>>
>>>> 1 Shredder 8 : 2721 44 47 150 67.3 % 2595 37.3 %
>>>> 2 Deep Fritz 8 : 2684 45 42 170 61.2 % 2605 36.5 %
>>>> 3 Hiarcs 9 : 2640 46 37 190 55.5 % 2602 35.3 %
>>>> 4 Fritz 8 : 2633 29 23 470 55.9 % 2592 38.5 %
>>>> 5 Deep Fritz 7 : 2633 32 26 374 56.3 % 2589 36.6 %
>>>> 6 Deep Junior 8 : 2630 43 39 210 57.1 % 2580 28.6 %
>>>> 7 Tiger 15 normal style : 2629 33 24 377 54.9 % 2594 42.4 %
>>>> 8 Shredder 7 : 2629 37 31 290 55.3 % 2591 32.8 %
>>>> 9 Tiger 15 gambit agres : 2626 48 44 163 58.0 % 2570 31.3 %
>>>
>>>
>>>
>>>Very interesting statistics.
>>>
>>>I have just noticed the striking difference in number of draws between CT15
>>>normal and CT15 gambit aggressive.
>>>
>>>They are close in strength, but the difference in the draw percentage is BIG.
>>>
>>>I would not say it's surprising, but it's a confirmation for me.
>>>
>>>The smallest number of draws in this list is achieved by Deep Junior 8.
>>>
>>>It looks like the strong speculative programs are the ones with a low draw
>>>percentage. It was expected, somehow, but it is always very interesting to have
>>>a confirmation by numbers.
>>>
>>>
>>>
>>> Christophe
>>>
>>>
>>>
>>>
>>>> 10 Junior 8 : 2625 45 34 210 54.5 % 2594 36.7 %
>>>> 11 Shredder 7.04 : 2614 37 28 320 53.8 % 2588 34.4 %
>>>> 12 Shredder Paderborn : 2613 40 31 262 54.0 % 2585 34.7 %
>>>> 13 Fritz 7 : 2611 22 19 742 57.9 % 2556 38.9 %
>>>> 14 Chess Tiger 14.0 : 2604 21 16 852 56.0 % 2562 43.4 %
>>
>>And take a look at version 14.0. Tiger always have been a "drawmachine". Perhaps
>>because it plays closest like a GM :)
>>
>>Tony
>>
>>>> 15 Ruffian 2.0.0 : 2602 37 56 150 49.0 % 2609 40.7 %
>>>> 16 Gambit Tiger 2.0 : 2602 21 16 878 57.3 % 2550 41.8 %
>>>> 17 Hiarcs8 Bareev : 2601 53 48 140 56.8 % 2554 29.3 %
>>>> 18 Fritz 7 (No MMX) : 2600 49 36 162 58.0 % 2544 44.4 %
>>>> 19 Deep Fritz : 2589 26 20 605 54.1 % 2560 36.9 %
>>>> 20 Ruffian 1.0.1 : 2583 46 32 220 51.4 % 2574 38.2 %
>
>Maybe Tiger has difficulties converting a positional advantage into a full point
>and consequently has a lot of draws?
>
>Geert
It can be anything.
1) It can be giving a draw too often in positions where it was possible to win.
2) It can be an exceptional ability to get a draw in lost positions.
3) It can be both.
I think that it would be possible to get a better picture by looking at the
score history (for both opponents) on a large collection of games.
Personally I believe that it is point 3. I think so because Chess Tiger gambit
aggressive, which is basically the same program but with a more aggressive
style, has almost the same rating.
Christophe
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