EXchess - experimental chess engine (capable of beating Crafty)

12 files changed, 215 insertions, 0 deletions

diff --git a/games/exchess/Makefile b/games/exchess/Makefile
new file mode 100644
index 00000000000..ccbb994a662
--- /dev/null
+++ b/games/exchess/Makefile
@@ -0,0 +1,30 @@
+# $NetBSD: Makefile,v 1.1.1.1 2000/10/25 08:40:00 jlam Exp $
+
+DISTNAME=		EXCH314S
+PKGNAME=		exchess-3.14
+CATEGORIES=		games
+MASTER_SITES=		http://pc.astro.brandeis.edu/BRAG/people/dch/
+EXTRACT_SUFX=		.zip
+
+MAINTAINER=		jlam@netbsd.org
+HOMEPAGE=		http://pc.astro.brandeis.edu/BRAG/people/dch/chess.html
+
+NO_WRKSUBDIR=		# defined
+NO_CONFIGURE=		# defined
+
+LIBDIR=			${PREFIX}/lib/exchess
+DOCDIR=			${PREFIX}/share/doc/exchess
+
+post-extract:
+	cd ${WRKSRC} && ${MV} search.par search.par.in
+	${CP} ${FILESDIR}/Makefile ${WRKSRC}
+
+post-build:
+	${SED}	-e "s,@PREFIX@,${PREFIX},g" \
+		< ${WRKSRC}/search.par.in > ${WRKSRC}/search.par
+
+post-install:
+	${INSTALL_DATA_DIR} ${DOCDIR}
+	${INSTALL_DATA} ${WRKSRC}/readme.txt ${DOCDIR}
+
+.include "../../mk/bsd.pkg.mk"
diff --git a/games/exchess/files/Makefile b/games/exchess/files/Makefile
new file mode 100644
index 00000000000..bc746ed77f9
--- /dev/null
+++ b/games/exchess/files/Makefile
@@ -0,0 +1,26 @@
+# $NetBSD: Makefile,v 1.1.1.1 2000/10/25 08:40:00 jlam Exp $
+
+BINDIR=		${PREFIX}/bin
+LIBDIR=		${PREFIX}/lib/exchess
+
+CPPFLAGS=	-DEXCHESS_DIR=\"${LIBDIR}/\"
+
+OBJS=		attacks.o book.o check.o exmove.o hash.o main.o movelist.o
+OBJS+=		parse.o pcapts.o pmoves.o probe.o score.o search.o setup.o
+OBJS+=		sort.o swap.o util.o
+
+all: exchess
+
+exchess: ${OBJS}
+	${CXX} -o ${.TARGET} ${OBJS} -lm
+
+install: exchess
+	${BSD_INSTALL_PROGRAM_DIR} ${BINDIR}
+	${BSD_INSTALL_PROGRAM} exchess ${BINDIR}
+	${BSD_INSTALL_DATA_DIR} ${LIBDIR}
+	${BSD_INSTALL_DATA} search.par ${LIBDIR}
+
+.SUFFIXES: .cpp
+
+.cpp.o:
+	${CXX} ${CXXFLAGS} ${CPPFLAGS} -c ${.IMPSRC}
diff --git a/games/exchess/files/md5 b/games/exchess/files/md5
new file mode 100644
index 00000000000..e05c7a8859c
--- /dev/null
+++ b/games/exchess/files/md5
@@ -0,0 +1,3 @@
+$NetBSD: md5,v 1.1.1.1 2000/10/25 08:40:00 jlam Exp $
+
+MD5 (EXCH314S.zip) = 36ac1ebff0f61b91fe4076a76fd4955b
diff --git a/games/exchess/files/patch-sum b/games/exchess/files/patch-sum
new file mode 100644
index 00000000000..41e3b3fbdf4
--- /dev/null
+++ b/games/exchess/files/patch-sum
@@ -0,0 +1,7 @@
+$NetBSD: patch-sum,v 1.1.1.1 2000/10/25 08:40:00 jlam Exp $
+
+MD5 (patch-aa) = 0239932bd835b3a30975dd9324f4faf9
+MD5 (patch-ab) = 8f1185e19a2c05e34299e9bad2214505
+MD5 (patch-ac) = 63fd37e3067b490fcf2270c339c14abd
+MD5 (patch-ad) = d84bc6cdf33588a7c67c53a8204a60e0
+MD5 (patch-ae) = a693341c00a78c346d901dd0c2777dcd
diff --git a/games/exchess/patches/patch-aa b/games/exchess/patches/patch-aa
new file mode 100644
index 00000000000..54aee032b5f
--- /dev/null
+++ b/games/exchess/patches/patch-aa
@@ -0,0 +1,22 @@
+$NetBSD: patch-aa,v 1.1.1.1 2000/10/25 08:40:00 jlam Exp $
+
+--- book.cpp.orig	Sun Apr 30 09:56:26 2000
++++ book.cpp
+@@ -52,7 +52,7 @@
+   char outbook[100];
+   position temp_pos;                 // temporary position
+   move bmove;                        // book move under consideration
+-  unsigned __int64 pcode;            // hash code for position
++  u_int64_t pcode;                   // hash code for position
+   int i = -1, j = 0, k = 0, p;       // loop variables
+   int count = 0, thresh, LINE_DEPTH; // control variables
+ 
+@@ -245,7 +245,7 @@
+ {
+   file_pos = 0;
+   int jump = int(file_size/2);
+-  unsigned __int64 pcode = ZERO;
++  u_int64_t pcode = ZERO;
+ 
+   temporary_pos = p;
+   if(!exec_move(&temporary_pos, m, 1)) return 0;
diff --git a/games/exchess/patches/patch-ab b/games/exchess/patches/patch-ab
new file mode 100644
index 00000000000..03a4dd1f356
--- /dev/null
+++ b/games/exchess/patches/patch-ab
@@ -0,0 +1,13 @@
+$NetBSD: patch-ab,v 1.1.1.1 2000/10/25 08:40:00 jlam Exp $
+
+--- chess.h.orig	Sat Feb 19 11:28:46 2000
++++ chess.h
+@@ -86,7 +86,7 @@
+ // Structure for position in the opening book
+ 
+ struct book_rec {
+- unsigned __int64 pos_code;    // position hash code
++ u_int64_t pos_code;           // position hash code
+  int score;                    // score for position
+  int gambit;                   // flag for gambit play
+ };
diff --git a/games/exchess/patches/patch-ac b/games/exchess/patches/patch-ac
new file mode 100644
index 00000000000..aaa1ef6f38e
--- /dev/null
+++ b/games/exchess/patches/patch-ac
@@ -0,0 +1,35 @@
+$NetBSD: patch-ac,v 1.1.1.1 2000/10/25 08:40:00 jlam Exp $
+
+--- define.h.orig	Sun Apr 30 10:02:28 2000
++++ define.h
+@@ -4,25 +4,26 @@
+ #ifndef DEFINE_H
+ #define DEFINE_H
+ 
++#include <inttypes.h>
++
+ #define VERS  3.14              // program version number
+ #define MAXD  60                // max search depth
+ #define MATE 10000000           // mate score
+ 
+ // Compiler flags for different systems
+-#define BORLAND  1      // Selects a win95/NT compiler if set to 1
++#define BORLAND  0      // Selects a win95/NT compiler if set to 1
+                         //   this should work with MSVC and others as
+                         //   well
+ #define DEC      0      // Set to 1 for certain DEC Unix systems, not
+                         //   all will need it - some other unixes may
+                         //   need this if there are errors in "book.cpp"
+-#define UNIX     0      // Set to 1 for all Unix systems
++#define UNIX     1      // Set to 1 for all Unix systems
+ #define DOS      0      // Set to 1 for Auto232 DOS mode
+ #define DEBUG    0      // Set to 1 to debug mode... quite slow
+ 
+ // define 64 bit integers
+ #if !BORLAND
+- #define __int64 long long
+- #define ZERO 0ULL
++ #define ZERO 0
+ #else
+  #define ZERO 0ui64
+ #endif
diff --git a/games/exchess/patches/patch-ad b/games/exchess/patches/patch-ad
new file mode 100644
index 00000000000..c5b4672d1ea
--- /dev/null
+++ b/games/exchess/patches/patch-ad
@@ -0,0 +1,39 @@
+$NetBSD: patch-ad,v 1.1.1.1 2000/10/25 08:40:00 jlam Exp $
+
+--- main.cpp.orig	Sat Apr  1 07:46:20 2000
++++ main.cpp
+@@ -17,6 +17,7 @@
+ #if UNIX
+  #include <sys/types.h>
+  #include <sys/time.h>
++ #include <unistd.h>
+ #else
+  #include <windows.h>
+  #include <time.h>
+@@ -56,7 +57,7 @@
+ extern int ponder, last_ponder, learn_count, learned;
+ extern unsigned long TAB_SIZE, PAWN_SIZE;
+ 
+-// executable directory
++// exchess opening book and search parameters directory
+ char exec_path[100];
+ 
+ // performance function
+@@ -93,16 +94,7 @@
+   learn_count = 0; learned = 0; learn_bk = 1; shout_book = 0;
+ 
+ 
+-   strcpy(exec_path, argv[0]);
+-   // parsing exec path
+-   int last_slash = 0;
+-   for(int j = 0; j < 100; j++) {
+-     if(exec_path[j] == '\0') break;
+-     if(exec_path[j] == '\\') last_slash = j;
+-     if(exec_path[j] == '/') last_slash = j;
+-   }
+-
+-   exec_path[last_slash+1] = '\0';
++   strcpy(exec_path, EXCHESS_DIR);
+ 
+  /* initializing hash tables, check tables, scoring parameters,
+     and the random number seed and tablebases */
diff --git a/games/exchess/patches/patch-ae b/games/exchess/patches/patch-ae
new file mode 100644
index 00000000000..25b4ab71e2f
--- /dev/null
+++ b/games/exchess/patches/patch-ae
@@ -0,0 +1,22 @@
+$NetBSD: patch-ae,v 1.1.1.1 2000/10/25 08:40:00 jlam Exp $
+
+--- search.par.in.orig	Sun Apr 30 09:59:16 2000
++++ search.par.in
+@@ -20,7 +20,7 @@
+ 
+ # Endgame Tablebases - if you have them installed
+ 
+-EGTB_PATH            c:\projects\exchess\tb
++EGTB_PATH            @PREFIX@/share/egtb
+ EGTB_CACHE_SIZE      2.0     # Tablebase cache size in megabytes
+ 
+ # Log File
+@@ -32,7 +32,7 @@
+ 
+ GAMBIT_SCORE        80          # Maximum gambit allowed
+ BOOK_FILE      open_bk.dat      # Name of the opening book file
+-BOOK_LEARNING        1          # Set to 0 for no book learning
++BOOK_LEARNING        0          # Set to 0 for no book learning
+ 
+ # Search Extensions
+ #
diff --git a/games/exchess/pkg/COMMENT b/games/exchess/pkg/COMMENT
new file mode 100644
index 00000000000..18c6cd63522
--- /dev/null
+++ b/games/exchess/pkg/COMMENT
@@ -0,0 +1 @@
+experimental chess engine
diff --git a/games/exchess/pkg/DESCR b/games/exchess/pkg/DESCR
new file mode 100644
index 00000000000..c20d628394e
--- /dev/null
+++ b/games/exchess/pkg/DESCR
@@ -0,0 +1,11 @@
+EXchess is an experimental chess engine supporting the following features:
+
+	* Support for Tim Mann's XBoard.
+	* Analysis features of XBoard.
+	* Brute force searches to 60 ply (1 ply = a move by one side). 
+	* Hash tables for storing positions already visited in the search. 
+	* Pondering. (Thinking on the opponent's time.) 
+	* Recursive null move pruning. 
+	* Quiescent capture search. 
+	* Adjustable hash table size. 
+	* Adjustable search and evaluation parameters.
diff --git a/games/exchess/pkg/PLIST b/games/exchess/pkg/PLIST
new file mode 100644
index 00000000000..0e1785ba3aa
--- /dev/null
+++ b/games/exchess/pkg/PLIST
@@ -0,0 +1,6 @@
+@comment $NetBSD: PLIST,v 1.1.1.1 2000/10/25 08:40:00 jlam Exp $
+bin/exchess
+lib/exchess/search.par
+share/doc/exchess/readme.txt
+@dirrm share/doc/exchess
+@dirrm lib/exchess