/*****************************************************************/\r
\r
#define MULTIPATH\r
-#define VERSION "4.8N"\r
+#define VERSION "4.8O"\r
\r
#include <stdio.h>\r
#include <stdlib.h>\r
v=d-1?e:i-p; /*** MVV/LVA scoring if d=1**/\r
if(d-!t>1) /*** all captures if d=2 ***/\r
{v=centr[p]?b[x+257]-b[y+257]:0; /* center positional pts. */\r
+ if(!(G&S))b[FF]=b[G],v+=50; /* castling: put R & score */\r
b[G]=b[H]=b[x]=0;b[y]=u|32; /* do move, set non-virgin */\r
- if(!(G&S))b[FF]=k+6,v+=50; /* castling: put R & score */\r
v-=w[p]>0|R<EG?0:20; /*** freeze K in mid-game ***/\r
if(p<3) /* pawns: */\r
{v-=9*((x-2&M||b[x-2]-u)+ /* structure, undefended */\r
} /* K-capt. replies) */\r
J=f;Z=g;\r
SHAMAX( pl[k]+=!!t; )\r
- b[G]=k+6;b[FF]=b[y]=0;b[x]=u;b[H]=t; /* undo move,G can be dummy */\r
+ b[G]=b[FF];b[FF]=b[y]=0;b[x]=u;b[H]=t; /* undo move,G can be dummy */\r
} /* if non-castling */\r
if(z&S&&Post&K==I&d>2&v>V&v<l){int *p=ps;char X,Y;\r
printf("%2d ",d-2);\r
while(*p){X=*p>>8;Y=*p++;\r
printf(" %c%c%c%c",'a'+(X&15),'8'-(X>>4),'a'+(Y&15),'8'-(Y>>4&7));}\r
printf("\n");fflush(stdout);\r
- } if(v>m) /* new best, update max,best*/\r
+ }
+ if(v>m) /* new best, update max,best*/\r
m=v,X=x,Y=y|S&F; /* mark non-double with S */\r
if(h){h=0;goto A;} /* redo after doing old best*/\r
}\r
- s=t;\r
+ s=t;v=r^flag>>12; /* calc. alternated vector */\r
if(flag&15^4|u&32|| /* no double or moved before*/\r
p>2&& /* no P & no lateral K move,*/\r
((b[G=r<0?x&~15:BW-1|x&112]^32)<33 /* no virgin R in corner G, */\r
- ||b[G^1]|b[G^2]|b[FF=r<0?G+3:G-2]) /* no 2 empty sq. next to R */\r
+ ||b[G^1]|b[G^2]|b[FF=y+v-r]) /* no 2 empty sq. next to R */\r
)t+=flag&4; /* fake capt. for nonsliding*/\r
else F=y; /* enable e.p. */\r
if(s&&flag&8)t=0,flag^=flag>>4&15; /* hoppers go to next phase */\r
if(!(flag&S)) /* zig-zag piece? */\r
- r^=flag>>12,flag^=flag>>4&15; /* alternate vector & mode */\r
+ r=v,flag^=flag>>4&15; /* alternate vector & mode */\r
}W(!t); /* if not capt. continue ray*/\r
}}\r
if((++x&15)>=BW)x=x+16&112; /* next sqr. of board, wrap */\r
}\r
K=I;\r
cnt = D(s,-I,I,Q,O,LL|4*S,3);\r
+#ifdef SHATRANJ\r
+ if(pl[s]==1 && pl[16-s]==1) {\r
+ printf("1/2-1/2 {Insufficient mating material}\n");\r
+ return 4;\r
+ }\r
+ if(pl[s]<=1 && pl[16-s]>1) {\r
+ if (s == BLACK)\r
+ printf("0-1 {Bare King}\n");\r
+ else\r
+ printf("1-0 {Bare King}\n");\r
+ return 5;\r
+ }\r
+ if(cnt>-I+1 && K==0 && L==0) {\r
+ if (s == WHITE)\r
+ printf("0-1 {Stalemate}\n");\r
+ else\r
+ printf("1-0 {Stalemate}\n");\r
+ return 2;\r
+ }\r
+#else\r
if(cnt>-I+1 && K==0 && L==0) {\r
printf("1/2-1/2 {Stalemate}\n");\r
return 2;\r
}\r
+#endif\r
if(cnt==-I+1) {\r
if (s == WHITE)\r
printf("0-1 {Black mates}\n");\r
printf("1/2-1/2 {Draw by fifty move rule}\n");\r
return 4;\r
}\r
-#ifdef SHATRANJ\r
- if(pl[s]==1 && pl[16-s]==1) {\r
- printf("1/2-1/2 {Insufficient mating material}\n");\r
- return 4;\r
- }\r
- if(pl[s]<=1 && pl[16-s]>1) {\r
- if (s == BLACK)\r
- printf("0-1 {Bare King}\n");\r
- else\r
- printf("1-0 {Bare King}\n");\r
- return 5;\r
- }\r
-#endif\r
return 0;\r
}\r
\r
}\r
if (!strcmp(command, "white")) {\r
/* set white to move in current position */\r
+ if(Side == BLACK) Q = -Q;\r
Side = WHITE;\r
Computer = BLACK;\r
continue;\r
}\r
if (!strcmp(command, "black")) {\r
/* set blck to move in current position */\r
+ if(Side == WHITE) Q = -Q;\r
Side = BLACK;\r
Computer = WHITE;\r
continue;\r
projects / fairymax.git / blobdiff