Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: How can I see a "wins, draws and losses" statistic for an opening move?

Author: Uri Blass

Date: 04:40:59 04/30/05

Go up one level in this thread


On April 30, 2005 at 01:17:01, Andrey Popov wrote:

>Ruffian 1.0.5 gives the information about wins, draws and losses percentage for
>main moves on each position from its opening book.
>For example, on the initial position Ruffian shows:
>
>  Move    Played   Prop[%]  Score[%]    Learn     +        -        =
>  d4        9911    42.81%    55.46%     1.00   28.46%   17.55%   53.99
>* e4        8082    35.44%    56.30%     1.00   30.10%   17.50%   52.40
>  Nf3       2609    11.30%    55.63%     1.00   27.41%   16.14%   56.46
>  c4        2228     9.83%    56.67%     1.00   30.25%   16.92%   52.83
>  g3         118     0.45%    49.15%     1.00   24.58%   26.27%   49.15
>  b3          31     0.12%    53.23%     1.00   35.48%   29.03%   35.48
>  Nc3          6     0.02%    50.00%     1.00   33.33%   33.33%   33.33
>  f4           9     0.02%    27.78%     1.00    0.00%   44.44%   55.56
>  c3           4     0.00%    25.00%     1.00   25.00%   75.00%    0.00
>  b4           3     0.00%    33.33%     1.00    0.00%   33.33%   66.67
>
>However, Ruffian's book is not big.
>If I want to know, what move is best to punish some wrong move, Ruffian fails.
>For example, if I want to know what to do after 1.d4 e5?, Ruffian 1.0.5 shows:
>
>  Move    Played   Prop[%]  Score[%]    Learn     +        -        =
>* e4           9   100.00%    50.00%     1.00   22.22%   22.22%   55.56
>Book: cache 74.34%, time 0.15 sec
>Suggested move: e4
>
>Which FREE engine has bigger opening book with the same possibility (i.e. shows
>the number of wins, draws and lossses)?


It seems that Ruffian has some bug.

I cannot believe that 2.e4 was played after 1.d4 e5 in the games that Ruffian
use

Maybe 2.d4 was played after 1.e4 e5 but it is not the same.

Movei's book is based on games but it does not show statistics for result of the
moves but only howmuch times the moves was played.

I may consider to change it to show statistics for book moves.

Uri



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.