用PostgreSQL玩国际象棋

背景

PG的玩家有点疯狂。看看PG怎么玩国际象棋吧。

http://pgxn.org/dist/pg2podg/

http://pgxn.org/dist/pgchess/

http://api.pgxn.org/dist/pg2podg/0.1.3/pg2podg-0.1.3.zip

http://api.pgxn.org/dist/pgchess/0.1.7/pgchess-0.1.7.zip

-rwxr-xr-x  1 root root   60K Sep  7 08:33 chess.so  
  
-rw-r--r-- 1 root root   94 Sep  7 08:33 pg2podg.control  
-rw-r--r-- 1 root root  21K Sep  7 08:33 pg2podg--0.1.3.sql  
-rw-r--r-- 1 root root  131 Sep  7 08:33 pgchess.control  
-rw-r--r-- 1 root root  14K Sep  7 08:33 pgchess--0.1.7.sql  
  
postgres=# create extension pgchess;  
CREATE EXTENSION  
postgres=# \dT  
                                    List of data types  
 Schema |   Name   |                              Description                                
--------+----------+-----------------------------------------------------------------------  
 public | game     | "moves" is encoded via the %% operators, which throughout this file  +  
        |          | represent a compact textual encoding of a game or a move.            +  
        |          |                                                                      +  
        |          | "board" could be computed from "moves", but only for standard games  +  
        |          | (e.g. not for chess problems). Also, remembering "board" is efficient+  
        |          | and simpler.                                                         +  
        |          |                                                                      +  
        |          | The first 64 characters of "board" represent the chessgame locations;+  
        |          | the next four characters encode castling information, and the last   +  
        |          | character is the piece captured in the last move (if any).  
 public | location |   
 public | move     |   
(3 rows)  
  
postgres=# create extension pg2podg;  
CREATE EXTENSION  

玩法参考

http://api.pgxn.org/src/pgchess/pgchess-0.1.7/doc/pgchess-QUICKSTART.md

游戏在以下目录

pgchess-0.1.7/test/sql/play

digoal’s 大量PostgreSQL文章入口