This library produces chess games databases from PGN files and provides some
predicates for manipulating these databases.
Once connected to a number of chess_db databases, all kinds of information about the games
can be interrogated. (see chess_db_opening/2 for an example).
Ideally we want to hook this pack to a web-page interface for playing the games as we select them.
?- pack_install( chess_db ).
The pack includes code to:
- parse PGN's pgn/2
- store the parsed terms into prosqlite databases chess_db/2
- manipulate the resulting databases chess_db_opening_pgn/2
There are two example databases in data/ and an example program, examples/short.pl
By default, chess database dirs contain 3 sqlite databases:
- game_info.sqlite contains game_info(Gid,Key,Val) info about each game
- game_move.sqlite table is of form game_move(Gid,Num,Turn,Move)
- game_orig.sqlite table is game_orig(Gid,Orig); where Orig is the verbatim of the section in the PGN for that game
A number of databases can be connected at the same time.
For example a number of databases can be declared in dir/1 terms within file:
~/.pl/chess_db_connect.pl see options_append/3.
== ?- [pack('chess_db/examples/short.pl')]. ?- short. % creates a chess_db in subdirectory short/ from data/4ncl_short.pgn % and displays the game ids for games that start with [e4,e6] (French defence) ...
?- french. % creates a new pgn file from the base for the 2 games in short/ that start with e4,e6 % Handles already exist, for chess_db directory: '/home/nicos/pl/packs/src/chess_db/examples/short' gid(chdbs((0x71b4f0),(0xe577f0),(0xe13400)):1) gid(chdbs((0x71b4f0),(0xe577f0),(0xe13400)):31) writting_to_file(short/french.pgn) true.
% open file french.pgn on program that can play the games
---+++ Pack info
@author nicos angelopoulos @version 0.1 2018/3/18 @see http://stoics.org.uk/~nicos/sware/chess_db @see https://github.com/nicos-angelopoulos/chess_db @see [pack('chess_db/examples/short.pl')] @see pack(prosqlite), pack(db_facts), pack(stoics_lib), pack(options)