Computer Chess Club Archives


Search

Terms

Messages

Subject: What is my error in finding difference between fruit and toga?

Author: Uri Blass

Date: 06:32:25 12/30/05


I am starting to look at the differences between toga and fruit
Note that I asked in the past about differences and got no response about it.

Note that I had no idea how to detect them fast but thanks to dann corbit that
sent me the link that I give also in this post I can detect the differences in a
reasonable time inspite of the fact that I probably need to compare every file
only to get the response that the selected files are identical in most case but
fortunately doing it is only few seconds for a file so I guess that I am going
to spend only 15-20 minutes in getting the response the selected files are
identical

http://winmerge.sourceforge.net/


Note that I find a lot of differences in eval.cpp(61 differences)

only first difference seem to be 45 additional lines in Toga

const int KnightPosMatrix[2][64] = {
    -8,	-4,   0,   0,   0,   0,  -4,  -8,
    -4,  0,   8,   8,   8,   8,   0,  -4,
     0,  8,   16,  16,  16,  16,  8,   0,
     0,  8,   16,  16,  16,  16,  8,   0,
     0,  8,   16,  16,  16,  16,  8,   0,
     0,  8,   16,  16,  16,  16,  8,   0,
    -4,  0,    8,   8,   8,   8,  0,  -4,
    -8, -4,    0,   0,   0,   0, -4,  -8,

    -8,	-4,   0,   0,   0,   0,  -4,  -8,
    -4,  0,   8,   8,   8,   8,   0,  -4,
     0,  8,   16,  16,  16,  16,  8,   0,
     0,  8,   16,  16,  16,  16,  8,   0,
     0,  8,   16,  16,  16,  16,  8,   0,
     0,  8,   16,  16,  16,  16,  8,   0,
    -4,  0,    8,   8,   8,   8,  0,  -4,
    -8, -4,    0,   0,   0,   0, -4,  -8,
};

const int KnightOutpostMatrix[2][64] = {
     0,	 0,   0,   0,   0,   0,   0,   0,
     0,	 0,   0,   0,   0,   0,   0,   0,
     0,	 0,   0,   0,   0,   0,   0,   0,
     0,	 2,   5,  10,  10,   5 ,  2,   0,
     0,	 2,   5,  10,  10,   5,   2,   0,
     0,	 0,   4,   5,   5,   4,   0,   0,
     0,	 0,   0,   0,   0,   0,   0,   0,
     0,	 0,   0,   0,   0,   0,   0,   0,

     0,	 0,   0,   0,   0,   0,   0,   0,
     0,	 0,   0,   0,   0,   0,   0,   0,
     0,	 0,   4,   5,   5,   4,   0,   0,
     0,	 2,   5,  10,  10,   5,   2,   0,
     0,	 2,   5,  10,  10,   5,   2,   0,
     0,	 0,   0,   0,   0,   0,   0,   0,
     0,	 0,   0,   0,   0,   0,   0,   0,
     0,	 0,   0,   0,   0,   0,   0,   0,
};

static int lazy_eval_cutoff = 200; /* Thomas */
static bool LazyEval = false; // true
static bool KingSafety = false; // true
static int KingSafetyMargin = 1600;
static bool king_is_safe[ColourNb];

second difference is the following line that is added in Toga

static const int KingAttackOpening1 = 20; // was 20
Note that there is also line that is very similiar in it

static const int KingAttackOpening = 20; // was 20

third difference is the following lines that are added in Toga

static const int ProtectedPassedOpening = 10;
static const int ProtectedPassedEndgame = 20;

4th difference seem to be some empty line that was added in toga(but most of the
differences are not of that type).

I wonder what is my error when I find more than 50 lines that were changed when
based on other posts that I read there are only 50 lines that were changed or
even only 47 lines that were changed.

Uri



This page took 0.01 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.