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Subject: Re: a position to analyze .

Author: pavel

Date: 16:01:51 08/15/00

Go up one level in this thread


On August 15, 2000 at 18:53:49, William Bryant wrote:

>On August 15, 2000 at 12:14:40, pavel wrote:
>
>>and a diagram hopefully....
>>
>> [D]8/Pk6/2N5/8/8/8/2K5/8 w - -
>>
>>I came across this position earlier today between amy vs wbnimzo2000b
>>the game was a 15 min/g. one of my tourny games .
>>
>>now as far as i know no chess programs realizes that its a draw. which it is.
>>does your program realizes it?
>>
>>thanks
>>pavel
>
>Thanks Pavel, this gave me to a chance to test my new endgame tablebase code.
>
>Screamer finds this is a draw in 0 seconds and stops searching at 62 ply
>in 2.623 seconds because it is a tablebase draw.
>
>Thanks Eugene for the tablebases.
>
>William
>wbryant@ix.netcom.com
>
>Welcome to Screamer 1.00  Build 54
>Current Hash Table Size: 16384 K bytes
>Current Pawn Hash Size: 4096 K bytes
>Debug Control On
>PVS Search
>NULL move Search
>Opening Book loaded and enabled
>3 and 4 Piece Table Bases enabled
>1490 kb of Ram used for decompression tables
>1024 kb of Ram used for EGTB buffers
>
>
>
>New Game ...
>Move 1 W>>
>
>New Board Position
>8/Pk6/2N5/8/8/8/2K5/8 w - -
>Move 1 W>>
>The Current Search Time: 120 seconds
>Trying Book Move
>PLY       NODES     TIME    SCORE  PV
>__________________________________________________
> 5/00       220     0.304   +0.00  Nb8 Kxa7
> 6/00       259     0.363   +0.00  Nb8 Kxa7
> 7/00       298     0.403   +0.00  Nb8 Kxa7
> 8/00       337     0.445   +0.00  Nb8 Kxa7
> 9/00       376     0.484   +0.00  Nb8 Kxa7
>10/00       415     0.524   +0.00  Nb8 Kxa7
>11/00       454     0.564   +0.00  Nb8 Kxa7
>12/00       493     0.604   +0.00  Nb8 Kxa7
>13/00       532     0.645   +0.00  Nb8 Kxa7
>14/00       571     0.685   +0.00  Nb8 Kxa7
>15/00       610     0.725   +0.00  Nb8 Kxa7
>16/00       649     0.767   +0.00  Nb8 Kxa7
>17/00       688     0.807   +0.00  Nb8 Kxa7
>18/00       727     0.848   +0.00  Nb8 Kxa7
>19/00       766     0.888   +0.00  Nb8 Kxa7
>20/00       805     0.929   +0.00  Nb8 Kxa7
>21/00       844     0.969   +0.00  Nb8 Kxa7
>22/00       883     1.010   +0.00  Nb8 Kxa7
>23/00       922     1.053   +0.00  Nb8 Kxa7
>24/00       961     1.094   +0.00  Nb8 Kxa7
>25/00      1000     1.134   +0.00  Nb8 Kxa7
>26/00      1039     1.174   +0.00  Nb8 Kxa7
>27/00      1078     1.214   +0.00  Nb8 Kxa7
>28/00      1117     1.255   +0.00  Nb8 Kxa7
>29/00      1156     1.296   +0.00  Nb8 Kxa7
>30/00      1195     1.337   +0.00  Nb8 Kxa7
>31/00      1234     1.376   +0.00  Nb8 Kxa7
>32/00      1273     1.418   +0.00  Nb8 Kxa7
>33/00      1312     1.460   +0.00  Nb8 Kxa7
>34/00      1351     1.499   +0.00  Nb8 Kxa7
>35/00      1390     1.538   +0.00  Nb8 Kxa7
>36/00      1429     1.578   +0.00  Nb8 Kxa7
>37/00      1468     1.618   +0.00  Nb8 Kxa7
>38/00      1507     1.658   +0.00  Nb8 Kxa7
>39/00      1546     1.698   +0.00  Nb8 Kxa7
>40/00      1585     1.737   +0.00  Nb8 Kxa7
>41/00      1624     1.779   +0.00  Nb8 Kxa7
>42/00      1663     1.818   +0.00  Nb8 Kxa7
>43/00      1702     1.859   +0.00  Nb8 Kxa7
>44/00      1741     1.899   +0.00  Nb8 Kxa7
>45/00      1780     1.939   +0.00  Nb8 Kxa7
>46/00      1819     1.980   +0.00  Nb8 Kxa7
>47/00      1858     2.020   +0.00  Nb8 Kxa7
>48/00      1897     2.060   +0.00  Nb8 Kxa7
>49/00      1936     2.100   +0.00  Nb8 Kxa7
>50/00      1975     2.140   +0.00  Nb8 Kxa7
>51/00      2014     2.181   +0.00  Nb8 Kxa7
>52/00      2053     2.221   +0.00  Nb8 Kxa7
>53/00      2092     2.261   +0.00  Nb8 Kxa7
>54/00      2131     2.301   +0.00  Nb8 Kxa7
>55/00      2170     2.342   +0.00  Nb8 Kxa7
>56/00      2209     2.381   +0.00  Nb8 Kxa7
>57/00      2248     2.422   +0.00  Nb8 Kxa7
>58/00      2287     2.462   +0.00  Nb8 Kxa7
>59/00      2326     2.502   +0.00  Nb8 Kxa7
>60/00      2365     2.542   +0.00  Nb8 Kxa7
>61/00      2404     2.583   +0.00  Nb8 Kxa7
>62/00      2443     2.623   +0.00  Nb8 Kxa7

hi bryant,
            how about trying it without the tablebases access? I am interested
in that though. its more about understanding the position. and I have'nt found
any program that actually found it draw without tablebases....

thanks.
pavel

ps, pls forgive my ignorance but as far as i know screamer is a macintosh
program , do you have any plan to port it for windows by any chance?



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