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Subject: Re: Open Dutch CCC final results

Author: Richard Pijl

Date: 13:03:47 10/24/04

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On October 24, 2004 at 15:57:31, Dann Corbit wrote:

>On October 24, 2004 at 15:40:43, Richard Pijl wrote:
>
>>On October 24, 2004 at 14:45:47, Dann Corbit wrote:
>>
>>>On October 24, 2004 at 11:59:50, Theo van der Storm wrote:
>>>
>>>>http://www.computerschaak.nl/
>>>>
>>>>             p     SB
>>>>1. Diep    8,5   40.00
>>>>2. Nexus   8,5   39.75
>>>>3. Pro Deo 8.5   39.50
>>>>
>>>>As announced before the tournament started
>>>>Sonnenborg Berger points were used as a tie-breaker
>>>>Opponents not played by all ending on top were removed from the SB count.
>>>>
>>>>Congratulations to all three teams.
>>>>It was a pleasure having you and the other participants in this tournament.
>>>
>>>Was there a playoff to determine the standings?
>>
>>No. The standings were determined by the SB results against the common
>>opponents. This to prevent that one program will always lose the SB tiebreak
>>because it played a very weak opponent (we had a few of them in previous
>>editions) which would ruin Buchholz (and SB scores).
>
>In the future, wouldn't TPR be a better tie-breaker than that?

I think TPR has almost the same problem as Buchholz in this type of tournaments.
The influence of pairings should be minimized as everybody plays almost
everybody anyway.
>
>In any case all of the top 3 are certainly deserving of the win.

We all agree on that.

>Who wrote Nexus?

Ralf Dörr and Norbert Esser from Germany. They also wrote a nice interface from
which they control their engine. In the game of the Baron against Nexus I
noticed that Nexus searched about 4 ply deeper than the Baron. It played quite
solid chess.
Richard.
>
>>>
>>>Elostat output (reformatted):
>>>
>>>    Program          Score     %    Av.Op.  Elo    +   -    Draws
>>>
>>>  1 Pro Deo      :   8.5/ 11  77.3   2642   2854  204 222   27.3 %
>>>  2 Nexus        :   8.5/ 11  77.3   2635   2847  204 222   27.3 %
>>>  3 Diep         :   8.5/ 11  77.3   2630   2842  204 311    9.1 %
>>>  4 Chess Tiger  :   7.0/ 11  63.6   2649   2747  227 228   18.2 %
>>>  5 The King     :   7.0/ 11  63.6   2593   2690  227 172   36.4 %
>>>  6 Tao          :   6.5/ 11  59.1   2606   2670  237 192   27.3 %
>>>  7 Deep Sjeng   :   6.5/ 11  59.1   2618   2682  237 145   45.5 %
>>>  8 The Baron    :   6.0/ 11  54.5   2598   2629  247 210   18.2 %
>>>  9 Ant          :   6.0/ 11  54.5   2600   2631  247 164   36.4 %
>>> 10 IsiChess MMX :   5.0/ 11  45.5   2587   2555  210 247   18.2 %
>>> 11 GoldBar      :   3.0/ 11  27.3   2583   2413  251 211   18.2 %
>>> 12 Neurosis     :   2.0/ 11  18.2   2613   2352  277 197   18.2 %
>>> 13 Kallisto II  :   1.5/ 11  13.6   2604   2284  359 190    9.1 %
>>> 14 XiniX dubbel :   1.0/ 11   9.1   2602   2202  292 185   18.2 %
>>>
>>>pgn -X program output (reformatted)
>>>
>>>  # Name         1 2 3 4 5 6 7 8 91011121314 Score  Buch Sommb
>>>--- ------------ --------------------------- ------ ---- -----
>>>  1 Pro Deo      * 0 1 1 = = = 1 1 1   1 1   8.5/11 64.5 46.00
>>>  2 Nexus        1 * 0 = 1 = 1 = 1 1   1   1 8.5/11 64.0 45.75
>>>  3 Diep         0 1 * 1 = 1 1 1 0   1 1 1   8.5/11 62.5 44.50
>>>  4 Chess Tiger  0 = 0 * 1 1 1 = 1 0 1     1 7.0/11 66.5 37.25
>>>  5 The King     = 0 = 0 *   = 1   = 1 1 1 1 7.0/11 57.5 27.75
>>>  6 Deep Sjeng   = = 0 0   * = = = 1 1   1 1 6.5/11 61.5 28.25
>>>  7 Tao          = 0 0 0 = = *   1   1 1 1 1 6.5/11 59.5 24.50
>>>  8 Ant          0 = 0 = 0 =   *   1 1 1 1 = 6.0/11 58.5 23.00
>>>  9 The Baron    0 0 1 0   = 0   * 1 = 1 1 1 6.0/11 58.0 22.75
>>> 10 IsiChess MMX 0 0   1 = 0   0 0 * 1 1 1 = 5.0/11 57.0 17.50
>>> 11 GoldBar          0 0 0 0 0 0 = 0 * = 1 1 3.0/11 57.0  6.50
>>> 12 Neurosis     0 0 0   0   0 0 0 0 = * = 1 2.0/11 61.5  3.25
>>> 13 Kallisto II  0   0   0 0 0 0 0 0 0 = * 1 1.5/11 60.0  2.00
>>> 14 XiniX dubbel   0   0 0 0 0 = 0 = 0 0 0 * 1.0/11 59.0  5.50



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