Opening books format

Discussion of chess software programming and technical issues.

Moderators: bob, hgm, Harvey Williamson

Forum rules
This textbox is used to restore diagrams posted with the [d] tag before the upgrade.
pijl

Re: Opening books format

Post by pijl » Tue Apr 15, 2008 3:03 pm

Osipov Jury wrote:

Code: Select all

  if (move_promo) fprintf(ft,"Q");  // allways queen: this is incorrect
I just made my own converter, which is rather simple to do. Instead of reading in the whole book, I fseek-ed through the file, following the move pointers. Windows will cache the file in memory anyway.

I did investigate the values for promotion as well:
Values for move_promo are signed and can have 9 values:
0: no promotion
-1, 1: rook promotion
-2, 2: knight promotion
-3, 3: bishop promotion
-4, 4: queen promotion
Richard.
Last edited by pijl on Tue Apr 15, 2008 3:06 pm, edited 1 time in total.

User avatar
beachknight
Posts: 3533
Joined: Tue Jan 09, 2007 7:33 pm
Location: Antalya, Turkey
Contact:

Re: Opening books format

Post by beachknight » Tue Apr 15, 2008 3:05 pm

Excellent, Yuri.

I wanted to merge all my arena opening books.
and there were no such code or utility.

Thank you!

Next step would be to create an online
converter that processes abk book to pgn.

With such a tool, I can obtain all pgns back;
process them further if necessary and create
my huge Arena book.

Any takers?

Best,
hi, merhaba, hallo HT

Ron Murawski
Posts: 397
Joined: Sun Oct 29, 2006 3:38 am
Location: Schenectady, NY
Contact:

Re: Opening books format

Post by Ron Murawski » Tue Apr 15, 2008 5:12 pm

There are several utility programs available at pitt.edu at this directory:
ftp://ftp.pitt.edu/group/student-activities/chess/CONV/

This index file has capsule descriptions of the contents:
ftp://ftp.pitt.edu/group/student-activi ... 0index.cnv

Ron

Dann Corbit
Posts: 10112
Joined: Wed Mar 08, 2006 7:57 pm
Location: Redmond, WA USA
Contact:

Re: Opening books format

Post by Dann Corbit » Wed Apr 16, 2008 12:37 am

I made a few small changes for my own purposes (mostly for post processing, since the PGN standard demands the 7 mandatory tags):

Code: Select all

#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <io.h>

struct BOOK &#123;
    unsigned char   move_from;
    unsigned char   move_to;
    unsigned char   move_promo;
    unsigned char   priority;
    unsigned int    games;
    unsigned int    won_games;
    unsigned int    lost_games;
    unsigned int    hz;
    int             first_child;
    int             next_sibling;
&#125;   *book;

FILE           *ft;
int             linelength = 0;

void            print_head&#40;)
&#123;
    fprintf&#40;ft, "*\n\n");
    fprintf&#40;ft, "&#91;Event \"?\"&#93;\n");
    fprintf&#40;ft, "&#91;Site \"?\"&#93;\n");
    fprintf&#40;ft, "&#91;Date \"????.??.??\"&#93;\n");
    fprintf&#40;ft, "&#91;Round \"?\"&#93;\n");
    fprintf&#40;ft, "&#91;Result \"*\"&#93;\n");
    fprintf&#40;ft, "&#91;White \"?\"&#93;\n");
    fprintf&#40;ft, "&#91;Black \"?\"&#93;\n\n");
&#125;

void print_move&#40;unsigned char move_from, unsigned char move_to, unsigned char move_promo, int ply&#41;
&#123;
    if (&#40;move_from >> 3&#41; + 1 == 32 && &#40;move_to >> 3&#41; + 1 == 32&#41; return;
    if &#40;linelength > 80&#41; &#123;
        fprintf&#40;ft, "\n");
        linelength = 0;
    &#125;
    if (&#40;ply & 1&#41; == 0&#41; &#123;
        fprintf&#40;ft, "%d.", ply / 2 + 1&#41;;
        linelength += 3;
    &#125;
    fprintf&#40;ft, "%c%d%c%d",
            &#40;move_from & 7&#41; + 'a', &#40;move_from >> 3&#41; + 1,
            &#40;move_to & 7&#41; + 'a', &#40;move_to >> 3&#41; + 1&#41;;
    if &#40;move_promo&#41;
        fprintf&#40;ft, "Q");       // allways queen&#58; this is incorrect

    fprintf&#40;ft, " ");
    linelength += 5;
&#125;

int main&#40;int argc, char *argv&#91;&#93;)
&#123;
    int             i,
                    ply;
    size_t          filesize;
    int             node&#91;1000&#93;;
    struct MOVE &#123;
        unsigned char   move_from;
        unsigned char   move_to;
        unsigned char   move_promo;
    &#125;   moves&#91;1000&#93;;

    if &#40;argc < 2&#41; &#123;
        printf&#40;"Simple command-line converter from ABK to PGN\n");
        printf&#40;"Usage&#58; abk.exe <abk_file>\n");
        printf&#40;"Result PGN-file&#58; out.pgn\n");
        exit&#40;0&#41;;
    &#125;
    ft = fopen&#40;argv&#91;1&#93;, "rb");
    if &#40;ft == NULL&#41; &#123;
        printf&#40;"Can't open file %s\n", argv&#91;1&#93;);
        exit&#40;0&#41;;
    &#125;
    filesize = filelength&#40;fileno&#40;ft&#41;);
    book = malloc&#40;filesize&#41;;
    fread&#40;book, filesize / sizeof&#40;struct BOOK&#41;, sizeof&#40;struct BOOK&#41;, ft&#41;;
    fclose&#40;ft&#41;;
    ft = fopen&#40;"out.pgn", "w");
    print_head&#40;);
    ply = 0;
    node&#91;0&#93; = 900;  // offset to first node in abk-file

    for (;;) &#123;
        print_move&#40;book&#91;node&#91;ply&#93;&#93;.move_from, book&#91;node&#91;ply&#93;&#93;.move_to,
                   book&#91;node&#91;ply&#93;&#93;.move_promo, ply&#41;;
        if &#40;book&#91;node&#91;ply&#93;&#93;.first_child > 0&#41; &#123;  // current game

            moves&#91;ply&#93;.move_from = book&#91;node&#91;ply&#93;&#93;.move_from;
            moves&#91;ply&#93;.move_to = book&#91;node&#91;ply&#93;&#93;.move_to;
            moves&#91;ply&#93;.move_promo = book&#91;node&#91;ply&#93;&#93;.move_promo;
            node&#91;ply + 1&#93; = book&#91;node&#91;ply&#93;&#93;.first_child;
            ply++;
        &#125; else &#123; // new game
            fprintf&#40;ft, "\n");
            node&#91;ply&#93; = book&#91;node&#91;ply&#93;&#93;.next_sibling;
            while &#40;node&#91;ply&#93; < 0&#41; &#123;
                ply--;
                if &#40;ply < 0&#41; &#123;
                    fclose&#40;ft&#41;;
                    exit&#40;0&#41;;
                &#125;
                node&#91;ply&#93; = book&#91;node&#91;ply&#93;&#93;.next_sibling;
            &#125;
            print_head&#40;);
            linelength = 0;
            for &#40;i = 0; i < ply; i++) &#123;
                print_move&#40;moves&#91;i&#93;.move_from, moves&#91;i&#93;.move_to, moves&#91;i&#93;.move_promo, i&#41;;
            &#125;
        &#125;
        if &#40;node&#91;ply&#93; >= filesize / &#40;int&#41; sizeof&#40;struct BOOK&#41;) &#123;
            printf&#40;"Error&#58; out of file\n");
            fclose&#40;ft&#41;;
            exit&#40;0&#41;;
        &#125;
    &#125;
    return 0;
&#125;

User avatar
beachknight
Posts: 3533
Joined: Tue Jan 09, 2007 7:33 pm
Location: Antalya, Turkey
Contact:

Re: Opening books format

Post by beachknight » Wed Apr 16, 2008 6:53 pm

Is there any executable that takes *.abk book as input
and produce *.pgn as output.

I'd be glad to have such a tool.

Best to you,
hi, merhaba, hallo HT

User avatar
beachknight
Posts: 3533
Joined: Tue Jan 09, 2007 7:33 pm
Location: Antalya, Turkey
Contact:

Re: Opening books format

Post by beachknight » Wed Apr 16, 2008 7:39 pm

OS: WinXPSP2

Best!
hi, merhaba, hallo HT

User avatar
Jim Ablett
Posts: 1327
Joined: Fri Jul 14, 2006 5:56 am
Location: London, England
Contact:

Re: Opening books format

Post by Jim Ablett » Thu Apr 17, 2008 12:07 am

beachknight wrote:Is there any executable that takes *.abk book as input
and produce *.pgn as output.

I'd be glad to have such a tool.

Best to you,
Here's the compiled windows exe 'abk2pgn.exe' from Dann's modified src.
Works fine, but output still needs a little bit of post-processing
with pgn-extract/pgntrim.

http://www.zshare.net/download/10653257fcb8f902/

Jim.

CThinker
Posts: 388
Joined: Wed Mar 08, 2006 9:08 pm
Contact:

Re: Opening books format

Post by CThinker » Thu Apr 17, 2008 5:02 am

One more modification...

Replace this:

Code: Select all

    if &#40;move_promo&#41;
        fprintf&#40;ft, "Q");       // allways queen&#58; this is incorrect 
with this:

Code: Select all

    if &#40;move_promo&#41; &#123;
        static const char prm&#91;&#93; = "RNBQ";
        fprintf&#40;ft, "%c", prm&#91;abs&#40;move_promo&#41;-1&#93;);
    &#125;

User avatar
Jim Ablett
Posts: 1327
Joined: Fri Jul 14, 2006 5:56 am
Location: London, England
Contact:

Re: Opening books format

Post by Jim Ablett » Thu Apr 17, 2008 8:07 am

CThinker wrote:One more modification...

Replace this:

Code: Select all

    if &#40;move_promo&#41;
        fprintf&#40;ft, "Q");       // allways queen&#58; this is incorrect 
with this:

Code: Select all

    if &#40;move_promo&#41; &#123;
        static const char prm&#91;&#93; = "RNBQ";
        fprintf&#40;ft, "%c", prm&#91;abs&#40;move_promo&#41;-1&#93;);
    &#125;
abk2pgn with Lance Perkins mod

http://www.zshare.net/download/106703053e39962e/

For cleaning up pgns I created a little batch script for my personal use
which run a series of pgn tools one after the other automatically (saves a lot of typing on the command line).

http://www.zshare.net/download/1067058909ff22e0/

This what it does automatically >
To clean/normalize and process a pgn file

Step 1: Backup original pgn file.
Step 2: 'Pgn-Extract' to remove duplicates.
Step 3: 'CleanTag' to remove erroneous tags.
Step 4: 'Trim' to correctly re-format pgn file.
Step 5: 'PgnMan' to add ECO to openings.
Step 6: 'AddElo' to fill in missing Elo tags.
Step 7: 'CleanUp' to remove incorrect null values.
Step 8: 'NameList' to produce player stats file.
Step 9: 'Ratelist' to produce player elo stats file

Step 10: Output completed/processed pgn 'processed.pgn' and stats files.


On the command line type:
-----------------------------------------------

process <name of pgn file>

EXAMPLE:

process anand.pgn


When completed directory will additionally contain >

1. processed.pgn - the fully cleaned/normalized/processed pgn file.
2. Ratelist.txt - Ratings list of all players contained in the pgn.
3. Namelist.txt - List of all players contained in the pgn.
Jim.

User avatar
Jim Ablett
Posts: 1327
Joined: Fri Jul 14, 2006 5:56 am
Location: London, England
Contact:

Re: Opening books format

Post by Jim Ablett » Thu Apr 17, 2008 8:32 am

On the command line type:
-----------------------------------------------

process <name of pgn file>

EXAMPLE:

process anand.pgn
Small amendment to that. The don't have to type the name of the pgn.
Just drop the pgn into the folder and type process

Jim.

Post Reply