Thanks for all of the code and links.
Has anybody written a program to convert to and from the chessbase *.ctg format?
If so, pls post and or link.
Opening books format
Moderators: hgm, Rebel, chrisw
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Stephan Vermeire (Brutus)
- Posts: 34
- Joined: Sun Oct 12, 2008 6:32 pm
Re: Opening books format
Hi Marc,
CTG-files have a completely different structure than .pgn files. With CTG, each unique position is stored regardless of how we came there. In pgn a specific sequence of moves is stored. That makes it harder to convert thse formats than other formats.
As far as I know, there is no program available to convert ctg. Check this also:
http://www.open-aurec.com/wbforum/viewt ... tg#p190852
Best wishes,
Stephan
CTG-files have a completely different structure than .pgn files. With CTG, each unique position is stored regardless of how we came there. In pgn a specific sequence of moves is stored. That makes it harder to convert thse formats than other formats.
As far as I know, there is no program available to convert ctg. Check this also:
http://www.open-aurec.com/wbforum/viewt ... tg#p190852
Best wishes,
Stephan
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jshriver
- Posts: 1342
- Joined: Wed Mar 08, 2006 9:41 pm
- Location: Morgantown, WV, USA
Re: Opening books format
I'd be willing to write one pending abk isn't patented or will get me sued 
Will have to research it later to see what the format looks like.
Any other formats people want dumped to PGN?
-Josh
Will have to research it later to see what the format looks like.
Any other formats people want dumped to PGN?
-Josh
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Michel
- Posts: 2272
- Joined: Mon Sep 29, 2008 1:50 am
Re: Opening books format
Dumping to PGN is not the only issue. One also needs to know how Arena assigns probabilities to moves. I asked a while ago here if it was known how Arena does this but there was no reply. So I guess it is not known.Any other formats people want dumped to PGN?
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Stephan Vermeire (Brutus)
- Posts: 34
- Joined: Sun Oct 12, 2008 6:32 pm
Re: Opening books format
Hi Joshua,jshriver wrote:I'd be willing to write one pending abk isn't patented or will get me sued
Will have to research it later to see what the format looks like.
-Josh
In case you want to write a ctg->pgn adapter, I can give you some code that is capable of probing ctg-databases. It won't be too hard to alter that into a converter.
I have written an object with the following functions:
Code: Select all
class book{
public:
book();
void setBookPath(char* newBookPath);
int probeBook(char* pFEN, char* pMove);
void setRandomness(int rnd); //With this you can set: best move only or one of the best moves
.....
};
Let me know if you are interested in this code. I haven't published it due too legal reasons (don't want to be sued either
)Stephan
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yoshiharu
- Posts: 56
- Joined: Sat Nov 11, 2006 11:14 pm
Re: Opening books format
Hi everybody,
I made a few corrections to the source, because of two small bugs.
Now it goes like the following:
Cheers, Mauro
I made a few corrections to the source, because of two small bugs.
Now it goes like the following:
Code: Select all
// Author Juri Osipov - mods by Dann Corbit, Lance Perkins - couple of bugs fixed by Mauro Riccardi
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <io.h>
static const char prm[] = "RNBQRNBQ";
struct BOOK {
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;
} *book;
FILE *ft;
int linelength = 0;
void print_head()
{
fprintf(ft, "[Event \"?\"]\n");
fprintf(ft, "[Site \"?\"]\n");
fprintf(ft, "[Date \"????.??.??\"]\n");
fprintf(ft, "[Round \"?\"]\n");
fprintf(ft, "[Result \"*\"]\n");
fprintf(ft, "[White \"?\"]\n");
fprintf(ft, "[Black \"?\"]\n\n");
}
void print_move(unsigned char move_from, unsigned char move_to,char move_promo, int ply)
{
if ((move_from >> 3) + 1 == 32 && (move_to >> 3) + 1 == 32) return;
if (linelength > 80) {
fprintf(ft, "\n");
linelength = 0;
}
if ((ply & 1) == 0) {
fprintf(ft, "%d.", ply / 2 + 1);
linelength += 3;
}
fprintf(ft, "%c%d%c%d",
(move_from & 7) + 'a', (move_from >> 3) + 1,
(move_to & 7) + 'a', (move_to >> 3) + 1);
if (move_promo) { // from Lance Perkins
fprintf(ft,"%c", prm[abs(move_promo)-1]);
}
fprintf(ft, " ");
linelength += 5;
}
int main(int argc, char *argv[])
{
int i,
ply;
size_t filesize;
int node[1000];
struct MOVE {
unsigned char move_from;
unsigned char move_to;
unsigned char move_promo;
} moves[1000];
if (argc < 2) {
printf("Simple command-line converter from ABK to PGN\n");
printf("Usage: abk.exe <abk_file>\n");
printf("Result PGN-file: out.pgn\n");
exit(0);
}
ft = fopen(argv[1], "rb");
if (ft == NULL) {
printf("Can't open file %s\n", argv[1]);
exit(0);
}
filesize = filelength(fileno(ft));
book = malloc(filesize);
fread(book, filesize / sizeof(struct BOOK), sizeof(struct BOOK), ft);
fclose(ft);
ft = fopen("out.pgn", "w");
print_head();
ply = 0;
node[0] = 900; // offset to first node in abk-file
for (;;) {
print_move(book[node[ply]].move_from, book[node[ply]].move_to,
book[node[ply]].move_promo, ply);
if (book[node[ply]].first_child > 0) { // current game
moves[ply].move_from = book[node[ply]].move_from;
moves[ply].move_to = book[node[ply]].move_to;
moves[ply].move_promo = book[node[ply]].move_promo;
node[ply + 1] = book[node[ply]].first_child;
ply++;
} else { // new game
fprintf(ft, "\n*\n\n");
node[ply] = book[node[ply]].next_sibling;
while (node[ply] < 0) {
ply--;
if (ply < 0) {
fclose(ft);
exit(0);
}
node[ply] = book[node[ply]].next_sibling;
}
print_head();
linelength = 0;
for (i = 0; i < ply; i++) {
print_move(moves[i].move_from, moves[i].move_to, moves[i].move_promo, i);
}
}
if (node[ply] >= filesize / (int) sizeof(struct BOOK)) {
printf("Error: out of file\n");
fclose(ft);
exit(0);
}
}
return 0;
}
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jshriver
- Posts: 1342
- Joined: Wed Mar 08, 2006 9:41 pm
- Location: Morgantown, WV, USA
Re: Opening books format
I made some small mods too to get this to work under linux (any unix really).
I've never used #ifdef for win vs unix systems but here are the additions and changes.
Add:
#include <stdlib.h>
#include <sys/stat.h>
Remove windows.h and io.h
struct stat filecheck;
then removed the filesize line and replace with this:
stat(argv[1], &filecheck);
filesize = filecheck.st_size;
-Josh
I've never used #ifdef for win vs unix systems but here are the additions and changes.
Add:
#include <stdlib.h>
#include <sys/stat.h>
Remove windows.h and io.h
struct stat filecheck;
then removed the filesize line and replace with this:
stat(argv[1], &filecheck);
filesize = filecheck.st_size;
-Josh
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Dann Corbit
- Posts: 12537
- Joined: Wed Mar 08, 2006 8:57 pm
- Location: Redmond, WA USA
Re: Opening books format
Maybe:
Code: Select all
// Author Juri Osipov - mods by Dann Corbit, Lance Perkins - couple of bugs fixed by Mauro Riccardi
#ifdef _MSC_VER
#include <windows.h>
#include <io.h>
#else
#include <unistd.h>
#include <sys/stat.h>
static struct stat filecheck;
#endif
#include <stdio.h>
#include <stdlib.h>
static const char prm[] = "RNBQRNBQ";
struct BOOK {
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;
} *book;
FILE *ft;
int linelength = 0;
void print_head()
{
fprintf(ft, "[Event \"?\"]\n");
fprintf(ft, "[Site \"?\"]\n");
fprintf(ft, "[Date \"????.??.??\"]\n");
fprintf(ft, "[Round \"?\"]\n");
fprintf(ft, "[Result \"*\"]\n");
fprintf(ft, "[White \"?\"]\n");
fprintf(ft, "[Black \"?\"]\n\n");
}
void print_move(unsigned char move_from, unsigned char move_to,char move_promo, int ply)
{
if ((move_from >> 3) + 1 == 32 && (move_to >> 3) + 1 == 32) return;
if (linelength > 80) {
fprintf(ft, "\n");
linelength = 0;
}
if ((ply & 1) == 0) {
fprintf(ft, "%d.", ply / 2 + 1);
linelength += 3;
}
fprintf(ft, "%c%d%c%d",
(move_from & 7) + 'a', (move_from >> 3) + 1,
(move_to & 7) + 'a', (move_to >> 3) + 1);
if (move_promo) { // from Lance Perkins
fprintf(ft,"%c", prm[abs(move_promo)-1]);
}
fprintf(ft, " ");
linelength += 5;
}
int main(int argc, char *argv[])
{
int i, ply;
size_t filesize;
int node[1000];
struct MOVE {
unsigned char move_from;
unsigned char move_to;
unsigned char move_promo;
} moves[1000];
if (argc < 2) {
printf("Simple command-line converter from ABK to PGN\n");
printf("Usage: abk.exe <abk_file>\n");
printf("Result PGN-file: out.pgn\n");
exit(0);
}
ft = fopen(argv[1], "rb");
if (ft == NULL) {
printf("Can't open file %s\n", argv[1]);
exit(0);
}
#ifdef _MSC_VER
filesize = filelength(fileno(ft));
#else
stat(argv[1], &filecheck);
filesize = filecheck.st_size;
#endif
book = malloc(filesize);
fread(book, filesize / sizeof(struct BOOK), sizeof(struct BOOK), ft);
fclose(ft);
ft = fopen("out.pgn", "w");
print_head();
ply = 0;
node[0] = 900; // offset to first node in abk-file
for (;;) {
print_move(book[node[ply]].move_from, book[node[ply]].move_to,
book[node[ply]].move_promo, ply);
if (book[node[ply]].first_child > 0) { // current game
moves[ply].move_from = book[node[ply]].move_from;
moves[ply].move_to = book[node[ply]].move_to;
moves[ply].move_promo = book[node[ply]].move_promo;
node[ply + 1] = book[node[ply]].first_child;
ply++;
} else { // new game
fprintf(ft, "\n*\n\n");
node[ply] = book[node[ply]].next_sibling;
while (node[ply] < 0) {
ply--;
if (ply < 0) {
fclose(ft);
exit(0);
}
node[ply] = book[node[ply]].next_sibling;
}
print_head();
linelength = 0;
for (i = 0; i < ply; i++) {
print_move(moves[i].move_from, moves[i].move_to, moves[i].move_promo, i);
}
}
if (node[ply] >= filesize / (int) sizeof(struct BOOK)) {
printf("Error: out of file\n");
fclose(ft);
exit(0);
}
}
return 0;
}
/*
/home/cnxuser> gcc abk2pgn.c
/home/cnxuser> ./a.out
Simple command-line converter from ABK to PGN
Usage: abk.exe <abk_file>
Result PGN-file: out.pgn
c:\tmp>cl /W1 /Ox abk2pgn.c
Microsoft (R) C/C++ Optimizing Compiler Version 15.00.30729.01 for x64
Copyright (C) Microsoft Corporation. All rights reserved.
abk2pgn.c
Microsoft (R) Incremental Linker Version 9.00.30729.01
Copyright (C) Microsoft Corporation. All rights reserved.
/out:abk2pgn.exe
abk2pgn.obj
c:\tmp>abk2pgn
Simple command-line converter from ABK to PGN
Usage: abk.exe <abk_file>
Result PGN-file: out.pgn
*/
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Graham Banks
- Posts: 41415
- Joined: Sun Feb 26, 2006 10:52 am
- Location: Auckland, NZ
Re: Opening books format
My friend, Nigel Pattinson, wrote a utility that will convert the Chessmaster books into ctg format. Would that be useful to you?mhalstern wrote:Thanks for all of the code and links.
Has anybody written a program to convert to and from the chessbase *.ctg format?
If so, pls post and or link.
http://homepages.paradise.net.nz/npatti ... kPage.html
Cheers,
Graham.
gbanksnz at gmail.com
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alpha123
- Posts: 660
- Joined: Sat Dec 05, 2009 5:13 am
- Location: Colorado, USA
Re: Opening books format
Well, that might be useful to me.... Thanks!Graham Banks wrote:My friend, Nigel Pattinson, wrote a utility that will convert the Chessmaster books into ctg format. Would that be useful to you?mhalstern wrote:Thanks for all of the code and links.
Has anybody written a program to convert to and from the chessbase *.ctg format?
If so, pls post and or link.
http://homepages.paradise.net.nz/npatti ... kPage.html
Cheers,
Graham.
I assume he reverse engineered the .ctg format to do that, so could he write a .ctg to .pgn or .ctg to .abk converter?
Thanks,
Peter