// promotions by pieces with Lion power stepping in & out the zone in same turn\r
// promotion on capture\r
\r
-#define VERSION "0.1beta"\r
+#define VERSION "0.11 kill"\r
\r
-#define PATH level==0 || path[0] == 0xc4028 && (level==1 /*|| path[1] == 0x75967 && (level == 2 || path[2] == 0x3400b && (level == 3))*/)\r
+#define PATH level==0 || path[0] == 0x848f1 && (level==1 /*|| path[1] == 0x3f081 && (level == 2 || path[2] == 0x6f0ac && (level == 3 || path[3] == 0x3e865 && (level == 4 || path[4] == 0x4b865 && (level == 5))))*/)\r
//define PATH 0\r
\r
+#define HASH\r
+#define KILLERS\r
+#define XNULLMOVE\r
+#define LIONTRAP\r
+\r
#include <stdio.h>\r
#include <stdlib.h>\r
#include <string.h>\r
#include <signal.h>\r
#include <time.h>\r
+#include <stdint.h>\r
\r
#ifdef WIN32 \r
# include <windows.h>\r
+ int InputWaiting()\r
+ { // checks for waiting input in pipe\r
+ static int pipe, init;\r
+ static HANDLE inp;\r
+ DWORD cnt;\r
+\r
+ if(!init) inp = GetStdHandle(STD_INPUT_HANDLE);\r
+ if(!PeekNamedPipe(inp, NULL, 0, NULL, &cnt, NULL)) return 1;\r
+ return cnt;\r
+ }\r
#else\r
# include <sys/time.h>\r
+# include <sys/ioctl.h>\r
+ int InputWaiting()\r
+ {\r
+ int cnt;\r
+ if(ioctl(0, FIONREAD, &cnt)) return 1;\r
+ return cnt;\r
+ }\r
int GetTickCount() // with thanks to Tord\r
{ struct timeval t;\r
gettimeofday(&t, NULL);\r
#define BSIZE BWMAX*BHMAX\r
#define ZONE zone\r
\r
-#define ONE (currentVariant == V_SHO || currentVariant == V_CHESS)\r
+#define ONE (currentVariant == V_SHO || currentVariant == V_CHESS || currentVariant == V_SHATRANJ || currentVariant == V_MAKRUK)\r
\r
#define BLACK 0\r
#define WHITE 1\r
void pbytes(unsigned char *b);\r
\r
typedef struct {\r
+ int lock[5];\r
+ int move[5];\r
+ short int score[5];\r
+ char depth[5];\r
+ char flag[5];\r
+ char age[4];\r
+} HashBucket;\r
+\r
+HashBucket *hashTable;\r
+int hashMask;\r
+\r
+#define H_UPPER 2\r
+#define H_LOWER 1\r
+\r
+typedef struct {\r
char *name, *promoted;\r
int value;\r
signed char range[8];\r
+ char bulk;\r
char ranking;\r
int whiteKey, blackKey;\r
} PieceDesc;\r
\r
typedef struct {\r
- int from, to, piece, victim, new, booty, epSquare, epVictim[8], ep2Square, revMoveCount, savKeyL, savKeyH;\r
+ int from, to, piece, victim, new, booty, epSquare, epVictim[8], ep2Square, revMoveCount;\r
+ int savKeyL, savKeyH, gain, loss, filling, saveDelta;\r
char fireMask;\r
} UndoInfo;\r
\r
char *array, fenArray[4000], *reason;\r
-int bWidth, bHeight, bsize, zone, currentVariant;\r
-int stm, xstm, hashKeyH, hashKeyL, framePtr, msp, nonCapts, rootEval, retMSP, retFirst, retDep, pvPtr, level, cnt50, chuFlag=1, tenFlag, mobilityScore;\r
-int nodes, startTime, tlim1, tlim2, repCnt, comp;\r
-Move retMove, moveStack[10000], path[100], repStack[300], pv[1000], repeatMove[300];\r
+int bWidth, bHeight, bsize, zone, currentVariant, chuFlag, tenFlag, chessFlag, repDraws, tsume;\r
+int stm, xstm, hashKeyH=1, hashKeyL=1, framePtr, msp, nonCapts, rootEval, filling, promoDelta;\r
+int retMSP, retFirst, retDep, pvPtr, level, cnt50, mobilityScore;\r
+int nodes, startTime, lastRootMove, lastRootIter, tlim1, tlim2, tlim3, repCnt, comp, abortFlag;\r
+Move ponderMove;\r
+Move retMove, moveStack[10000], path[100], repStack[300], pv[1000], repeatMove[300], killer[100][2];\r
+\r
+ int maxDepth; // used by search\r
\r
#define X 36 /* slider */\r
#define R 37 /* jump capture */\r
#define FVAL 500 /* piece value of Fire Demon. Used in code for recognizing moves with it and do burns */\r
\r
PieceDesc chuPieces[] = {\r
- {"LN", "", LVAL, { L,L,L,L,L,L,L,L } }, // lion\r
- {"FK", "", 60, { X,X,X,X,X,X,X,X } }, // free king\r
- {"SE", "", 55, { X,D,X,X,X,X,X,D } }, // soaring eagle\r
- {"HF", "", 50, { D,X,X,X,X,X,X,X } }, // horned falcon\r
- {"FO", "", 40, { X,X,0,X,X,X,0,X } }, // flying ox\r
- {"FB", "", 40, { 0,X,X,X,0,X,X,X } }, // free boar\r
- {"DK", "SE", 40, { X,1,X,1,X,1,X,1 } }, // dragon king\r
- {"DH", "HF", 35, { 1,X,1,X,1,X,1,X } }, // dragon horse\r
- {"WH", "", 35, { X,X,0,0,X,0,0,X } }, // white horse\r
- {"R", "DK", 30, { X,0,X,0,X,0,X,0 } }, // rook\r
- {"FS", "", 30, { X,1,1,1,X,1,1,1 } }, // flying stag\r
- {"WL", "", 25, { X,0,0,X,X,X,0,0 } }, // whale\r
- {"K", "", 28, { 1,1,1,1,1,1,1,1 }, 4 }, // king\r
- {"CP", "", 27, { 1,1,1,1,1,1,1,1 }, 4 }, // king\r
- {"B", "DH", 25, { 0,X,0,X,0,X,0,X } }, // bishop\r
- {"VM", "FO", 20, { X,0,1,0,X,0,1,0 } }, // vertical mover\r
- {"SM", "FB", 20, { 1,0,X,0,1,0,X,0 } }, // side mover\r
- {"DE", "CP", 20, { 1,1,1,1,0,1,1,1 } }, // drunk elephant\r
- {"BT", "FS", 15, { 0,1,1,1,1,1,1,1 } }, // blind tiger\r
- {"G", "R", 15, { 1,1,1,0,1,0,1,1 } }, // gold\r
- {"FL", "B", 15, { 1,1,0,1,1,1,0,1 } }, // ferocious leopard\r
- {"KN", "LN", 15, { J,1,J,1,J,1,J,1 } }, // kirin\r
- {"PH", "FK", 15, { 1,J,1,J,1,J,1,J } }, // phoenix\r
- {"RV", "WL", 15, { X,0,0,0,X,0,0,0 } }, // reverse chariot\r
- {"L", "WH", 15, { X,0,0,0,0,0,0,0 } }, // lance\r
- {"S", "VM", 10, { 1,1,0,1,0,1,0,1 } }, // silver\r
- {"C", "SM", 10, { 1,1,0,0,1,0,0,1 } }, // copper\r
- {"GB", "DE", 5, { 1,0,0,0,1,0,0,0 } }, // go between\r
- {"P", "G", 4, { 1,0,0,0,0,0,0,0 } }, // pawn\r
+ {"LN", "", LVAL, { L,L,L,L,L,L,L,L }, 4 }, // lion\r
+ {"FK", "", 60, { X,X,X,X,X,X,X,X }, 4 }, // free king\r
+ {"SE", "", 55, { X,D,X,X,X,X,X,D }, 4 }, // soaring eagle\r
+ {"HF", "", 50, { D,X,X,X,X,X,X,X }, 4 }, // horned falcon\r
+ {"FO", "", 40, { X,X,0,X,X,X,0,X }, 4 }, // flying ox\r
+ {"FB", "", 40, { 0,X,X,X,0,X,X,X }, 4 }, // free boar\r
+ {"DK", "SE", 40, { X,1,X,1,X,1,X,1 }, 4 }, // dragon king\r
+ {"DH", "HF", 35, { 1,X,1,X,1,X,1,X }, 4 }, // dragon horse\r
+ {"WH", "", 35, { X,X,0,0,X,0,0,X }, 3 }, // white horse\r
+ {"R", "DK", 30, { X,0,X,0,X,0,X,0 }, 4 }, // rook\r
+ {"FS", "", 30, { X,1,1,1,X,1,1,1 }, 3 }, // flying stag\r
+ {"WL", "", 25, { X,0,0,X,X,X,0,0 }, 4 }, // whale\r
+ {"K", "", 28, { 1,1,1,1,1,1,1,1 }, 2, 4 }, // king\r
+ {"CP", "", 27, { 1,1,1,1,1,1,1,1 }, 2, 4 }, // king\r
+ {"B", "DH", 25, { 0,X,0,X,0,X,0,X }, 2 }, // bishop\r
+ {"VM", "FO", 20, { X,0,1,0,X,0,1,0 }, 2 }, // vertical mover\r
+ {"SM", "FB", 20, { 1,0,X,0,1,0,X,0 }, 6 }, // side mover\r
+ {"DE", "CP", 20, { 1,1,1,1,0,1,1,1 }, 2 }, // drunk elephant\r
+ {"BT", "FS", 15, { 0,1,1,1,1,1,1,1 }, 2 }, // blind tiger\r
+ {"G", "R", 15, { 1,1,1,0,1,0,1,1 }, 2 }, // gold\r
+ {"FL", "B", 15, { 1,1,0,1,1,1,0,1 }, 2 }, // ferocious leopard\r
+ {"KN", "LN", 15, { J,1,J,1,J,1,J,1 }, 2 }, // kirin\r
+ {"PH", "FK", 15, { 1,J,1,J,1,J,1,J }, 2 }, // phoenix\r
+ {"RV", "WL", 15, { X,0,0,0,X,0,0,0 }, 1 }, // reverse chariot\r
+ {"L", "WH", 15, { X,0,0,0,0,0,0,0 }, 1 }, // lance\r
+ {"S", "VM", 10, { 1,1,0,1,0,1,0,1 }, 2 }, // silver\r
+ {"C", "SM", 10, { 1,1,0,0,1,0,0,1 }, 2 }, // copper\r
+ {"GB", "DE", 5, { 1,0,0,0,1,0,0,0 }, 1 }, // go between\r
+ {"P", "G", 4, { 1,0,0,0,0,0,0,0 }, 2 }, // pawn\r
{ NULL } // sentinel\r
};\r
\r
};\r
\r
PieceDesc daiPieces[] = {\r
- {"FD", "G", 15, { 0,2,0,2,0,2,0,2 } }, // Flying Dragon\r
- {"VO", "G", 20, { 2,0,2,0,2,0,2,0 } }, // Violent Ox\r
- {"EW", "G", 8, { 1,1,1,0,0,0,1,1 } }, // Evil Wolf\r
- {"CS", "G", 7, { 0,1,0,1,0,1,0,1 } }, // Cat Sword\r
- {"AB", "G", 6, { 1,0,1,0,1,0,1,0 } }, // Angry Boar\r
- {"I", "G", 8, { 1,1,0,0,0,0,0,1 } }, // Iron\r
- {"N", "G", 6, { N,0,0,0,0,0,0,N } }, // Knight\r
- {"ST", "G", 5, { 0,1,0,0,0,0,0,1 } }, // Stone\r
+ {"FD", "G", 15, { 0,2,0,2,0,2,0,2 }, 2 }, // Flying Dragon\r
+ {"VO", "G", 20, { 2,0,2,0,2,0,2,0 }, 2 }, // Violent Ox\r
+ {"EW", "G", 8, { 1,1,1,0,0,0,1,1 }, 2 }, // Evil Wolf\r
+ {"CS", "G", 7, { 0,1,0,1,0,1,0,1 }, 1 }, // Cat Sword\r
+ {"AB", "G", 6, { 1,0,1,0,1,0,1,0 }, 1 }, // Angry Boar\r
+ {"I", "G", 8, { 1,1,0,0,0,0,0,1 }, 2 }, // Iron\r
+ {"N", "G", 6, { N,0,0,0,0,0,0,N }, 0 }, // Knight\r
+ {"ST", "G", 5, { 0,1,0,0,0,0,0,1 }, 0 }, // Stone\r
{ NULL } // sentinel\r
};\r
\r
{"WB", "FT", 1, { 2,X,X,X,2,X,X,X } }, // Water Buffalo\r
{"RB", "FR", 1, { X,X,X,X,0,X,X,X } }, // Rushing Bird\r
{"SB", "", 1, { X,X,2,2,2,2,2,X } }, // Standard Bearer\r
+\r
{"FH", "FK", 1, { 1,2,1,0,1,0,1,2 } }, // Flying Horse\r
{"NK", "SB", 1, { 1,1,1,1,1,1,1,1 } }, // Neighbor King\r
{"BM", "MW", 1, { 0,1,1,1,0,1,1,1 } }, // Blind Monkey\r
\r
PieceDesc tenjikuPieces[] = { // only those not in Chu, or different (because of different promotion)\r
{"FI", "", FVAL, { X,X,0,X,X,X,0,X } }, // Fire Demon\r
- {"GG", "", 150, { R,R,R,R,R,R,R,R }, 3 }, // Great General\r
- {"VG", "", 140, { 0,R,0,R,0,R,0,R }, 2 }, // Vice General\r
- {"RG", "GG",120, { R,0,R,0,R,0,R,0 }, 1 }, // Rook General\r
- {"BG", "VG",110, { 0,R,0,R,0,R,0,R }, 1 }, // Bishop General\r
+ {"GG", "", 150, { R,R,R,R,R,R,R,R }, 0, 3 }, // Great General\r
+ {"VG", "", 140, { 0,R,0,R,0,R,0,R }, 0, 2 }, // Vice General\r
+ {"RG", "GG",120, { R,0,R,0,R,0,R,0 }, 0, 1 }, // Rook General\r
+ {"BG", "VG",110, { 0,R,0,R,0,R,0,R }, 0, 1 }, // Bishop General\r
{"SE", "RG", 1, { X,D,X,X,X,X,X,D } }, // Soaring Eagle\r
{"HF", "BG", 1, { D,X,X,X,X,X,X,X } }, // Horned Falcon\r
{"LH", "", 1, { L,S,L,S,L,S,L,S } }, // Lion-Hawk\r
{ NULL } // sentinel\r
};\r
\r
+PieceDesc shatranjPieces[] = {\r
+ {"FK", "", 15, { 0,1,0,1,0,1,0,1 } },\r
+ {"R", "", 50, { X,0,X,0,X,0,X,0 } },\r
+ {"B", "", 9, { 0,J,0,J,0,J,0,J } },\r
+ {"N", "", 30, { N,N,N,N,N,N,N,N } },\r
+ {"K", "", 28, { 1,1,1,1,1,1,1,1 } },\r
+ {"P", "FK", 8, { M,C,0,0,0,0,0,C } },\r
+ { NULL } // sentinel\r
+};\r
+\r
+PieceDesc makrukPieces[] = {\r
+ {"SM","", 15, { 0,1,0,1,0,1,0,1 } },\r
+ {"R", "", 50, { X,0,X,0,X,0,X,0 } },\r
+ {"S", "", 20, { 1,1,0,1,0,1,0,1 } }, // silver\r
+ {"N", "", 30, { N,N,N,N,N,N,N,N } },\r
+ {"K", "", 28, { 1,1,1,1,1,1,1,1 } },\r
+ {"P", "SM", 8, { M,C,0,0,0,0,0,C } },\r
+ { NULL } // sentinel\r
+};\r
+\r
char chuArray[] = "L:FLCSGK:DEGSC:FLL/:RV.B.:BT:KN:PH:BT.B.:RV/:SM:VMR:DH:DK:LN:FK:DK:DHR:VM:SM/PPPPPPPPPPPP/...:GB....:GB..."\r
"/............/............/"\r
"...:gb....:gb.../pppppppppppp/:sm:vmr:dh:dk:fk:ln:dk:dhr:vm:sm/:rv.b.:bt:ph:kn:bt.b.:rv/l:flcsg:dekgsc:fll";\r
":ss:vsb:dh:dk:wb:fi:fe:lh:fi:wb:dk:dhb:vs:ss/:rv.:cs:cs.:bt:ph:fk:ln:kn:bt.:cs:cs.:rv/ln:flicsg:dekgsci:flnl";\r
char shoArray[] = "LNSGKGSNL/.B..:DE..R./PPPPPPPPP/........./........./........./ppppppppp/.r..:de..b./lnsgkgsnl";\r
char chessArray[] = "RNBQKBNR/PPPPPPPP/......../......../......../......../pppppppp/rnbqkbnr";\r
+char shatArray[]= "RNBK:FKBNR/PPPPPPPP/......../......../......../......../pppppppp/rnbk:fkbnr";\r
+char thaiArray[]= "RNSK:SMSNR/......../PPPPPPPP/......../......../pppppppp/......../rnsk:smsnr";\r
\r
typedef struct {\r
int boardWidth, boardFiles, boardRanks, zoneDepth, varNr; // board sizes\r
char *array; // initial position\r
} VariantDesc;\r
\r
-typedef enum { V_CHESS, V_SHO, V_CHU, V_DAI, V_TENJIKU, V_DADA, V_MAKA, V_TAI, V_KYOKU } Variant;\r
+typedef enum { V_CHESS, V_SHO, V_CHU, V_DAI, V_TENJIKU, V_DADA, V_MAKA, V_TAI, V_KYOKU, V_SHATRANJ, V_MAKRUK } Variant;\r
\r
VariantDesc variants[] = {\r
{ 16, 8, 8, 1, V_CHESS, "normal", chessArray }, // FIDE\r
{ 24, 12, 12, 4, V_CHU, "chu", chuArray }, // Chu\r
{ 30, 15, 15, 5, V_DAI, "dai", daiArray }, // Dai\r
{ 32, 16, 16, 5, V_TENJIKU, "tenjiku", tenArray }, // Tenjiku\r
+ { 16, 8, 8, 1, V_SHATRANJ,"shatranj",shatArray}, // Shatranj\r
+ { 16, 8, 8, 3, V_MAKRUK, "makruk", thaiArray}, // Makruk\r
+\r
// { 0, 0, 0, 0, 0 }, // sentinel\r
{ 34, 17, 17, 0, V_DADA, "dada", chuArray }, // Dai Dai\r
{ 38, 19, 19, 0, V_MAKA, "maka", chuArray }, // Maka Dai Dai\r
char qval;\r
char mobility;\r
char mobWeight;\r
+ unsigned char promoGain;\r
+ char bulk;\r
} PieceInfo; // piece-list entry\r
\r
int last[2], royal[2];\r
int postThinking;\r
int resign; // engine-defined option\r
int contemptFactor; // likewise\r
+ int seed;\r
\r
int squareKey[BSIZE];\r
\r
char distance[2*BSIZE]; // distance table\r
char promoBoard[BSIZE]; // flags to indicate promotion zones\r
char rawFire[BSIZE+2*BWMAX]; // flags to indicate squares controlled by Fire Demons\r
-signed char PST[2*BSIZE];\r
+signed char PST[3*BSIZE];\r
\r
#define board (rawBoard + 6*BHMAX + 3)\r
#define fireBoard (rawFire + BWMAX + 1)\r
return ListLookUp(name, chuPieces);\r
case V_CHESS: // FIDE\r
return ListLookUp(name, chessPieces);\r
+ case V_SHATRANJ: // Shatranj\r
+ return ListLookUp(name, shatranjPieces);\r
+ case V_MAKRUK: // Makruk\r
+ return ListLookUp(name, makrukPieces);\r
}\r
return NULL;\r
}\r
return 0;\r
}\r
\r
+#if 0\r
+int\r
+Lance (signed char *r)\r
+{ // File-bound forward slider\r
+ int i;\r
+ for(i=1; i<4; i++) if(r[i] || r[i+4]) return 0;\r
+ return r[0] == X;\r
+}\r
+#endif\r
+int\r
+EasyProm (signed char *r)\r
+{\r
+ int i;\r
+ return r[0] == X || r[1] == X || r[7] == X;\r
+}\r
+\r
int\r
IsUpwardCompatible (signed char *r, signed char *s)\r
{\r
}\r
}\r
for(i=stm+2; i<last[stm]; i+=2) { // second pass: promoted pieces\r
+\r
if((k = p[i].promo) == -2 && p[i].pos == ABSENT) { // orphaned promoted piece not present\r
SqueezeOut(i);\r
}\r
}\r
key = (stm == WHITE ? &list->whiteKey : &list->blackKey);\r
if(!*key) *key = ~(myRandom()*myRandom());\r
+ p[i].promoGain = EasyProm(list->range); // flag easy promotion based on white view\r
p[i].pieceKey = *key;\r
p[i].promoFlag = 0;\r
+ p[i].bulk = list->bulk;\r
p[i].mobWeight = v > 600 ? 0 : v >= 400 ? 1 : v >= 300 ? 2 : v > 150 ? 3 : v >= 100 ? 2 : 0;\r
+// if(Lance(list->range)) p[i].mobWeight = 5, p[i].pst = 0; // clear path but don't move forward\r
for(j=stm+2; j<= last[stm]; j+=2) {\r
if(p[j].promo >= i) p[j].promo += 2;\r
}\r
if(royal[stm] >= i) royal[stm] += 2;\r
- if(p[i].value == (currentVariant == V_SHO ? 410 : 280) ) royal[stm] = i;\r
+ if(p[i].value == (currentVariant == V_SHO ? 410 : 280) ) royal[stm] = i, p[i].pst = 0;\r
p[i].qval = (currentVariant == V_TENJIKU ? list->ranking : 0); // jump-capture hierarchy\r
return i;\r
}\r
SetUp(char *array, int var)\r
{\r
int i, j, n, m, nr, color;\r
- char c, *q, name[3];\r
+ char c, *q, name[3], prince = 0;\r
PieceDesc *p1, *p2;\r
last[WHITE] = 1; last[BLACK] = 0;\r
- if(var == V_CHESS) // add dummy Crown Princes\r
- p[AddPiece(WHITE, LookUp("CP", V_CHU))].pos = p[AddPiece(BLACK, LookUp("CP", V_CHU))].pos = ABSENT;\r
for(i=0; ; i++) {\r
//printf("next rank: %s\n", array);\r
for(j = BW*i; ; j++) {\r
name[0] += 'A' - 'a';\r
if(name[1]) name[1] += 'A' - 'a';\r
} else color = WHITE;\r
+ if(!strcmp(name, "CP")) prince |= color+1; // remember if we added Crown Prince\r
p1 = LookUp(name, var);\r
+ if(!p1) printf("tellusererror Unknown piece '%s' in setup\n", name), exit(-1);\r
if(pflag && p1->promoted) p1 = LookUp(p1->promoted, var); // use promoted piece instead\r
n = AddPiece(color, p1);\r
p[n].pos = j;\r
if(p1->promoted[0] && !pflag) {\r
+ if(!strcmp(p1->promoted, "CP")) prince |= color+1; // remember if we added Crown Prince\r
p2 = LookUp(p1->promoted, var);\r
m = AddPiece(color, p2);\r
if(m <= n) n += 2;\r
}\r
}\r
eos:\r
+ // add dummy Crown Princes if not yet added\r
+ if(!(prince & WHITE+1)) p[AddPiece(WHITE, LookUp("CP", V_CHU))].pos = ABSENT;\r
+ if(!(prince & BLACK+1)) p[AddPiece(BLACK, LookUp("CP", V_CHU))].pos = ABSENT;\r
for(i=0; i<8; i++) fireFlags[i] = 0;\r
for(i=2, n=1; i<10; i++) if(p[i].value == 10*FVAL) {\r
int x = p[i].pos; // mark all burn zones\r
n <<= 1;\r
}\r
for(i=0; i<BH; i++) for(j=0; j<BH; j++) board[BW*i+j] = EMPTY;\r
- for(i=WHITE+2; i<=last[WHITE]; i+=2) board[p[i].pos] = i;\r
- for(i=BLACK+2; i<=last[BLACK]; i+=2) board[p[i].pos] = i;\r
+ for(i=WHITE+2; i<=last[WHITE]; i+=2) if(p[i].pos != ABSENT) {\r
+ if(p[i].promoGain && (j = p[i].promo) > 0)\r
+ p[i].promoGain = (p[j].value - p[i].value - 30)*1.25, p[i].value = p[j].value - 30;\r
+ else p[i].promoGain = 0;\r
+ board[p[i].pos] = i;\r
+ rootEval += p[i].value + PST[p[i].pst + p[i].pos];\r
+ promoDelta += p[i].promoGain;\r
+ filling += p[i].bulk;\r
+ } else p[i].promoGain = 0;\r
+ for(i=BLACK+2; i<=last[BLACK]; i+=2) if(p[i].pos != ABSENT) {\r
+ if(p[i].promoGain && (j = p[i].promo) > 0)\r
+ p[i].promoGain = (p[j].value - p[i].value - 30)*1.25, p[i].value = p[j].value - 30;\r
+ else p[i].promoGain = 0;\r
+ board[p[i].pos] = i;\r
+ rootEval -= p[i].value + PST[p[i].pst + p[i].pos];\r
+ promoDelta -= p[i].promoGain;\r
+ filling += p[i].bulk;\r
+ } else p[i].promoGain = 0;\r
StackMultis(WHITE);\r
StackMultis(BLACK);\r
stm = WHITE; xstm = BLACK;\r
bsize = bWidth*bHeight;\r
chuFlag = (currentVariant == V_CHU);\r
tenFlag = (currentVariant == V_TENJIKU);\r
+ chessFlag = (currentVariant == V_CHESS);\r
+ repDraws = (currentVariant == V_CHESS || currentVariant == V_SHATRANJ || currentVariant == V_MAKRUK);\r
\r
for(i= -1; i<9; i++) { // board steps in linear coordinates\r
kStep[i] = STEP(direction[i&7].x, direction[i&7].y); // King\r
for(i=0; i<2*BSIZE; i++) {\r
distance[i] = 0;\r
}\r
- for(i=0; i<8; i++)\r
- for(j=1; j<BH; j++)\r
- dist[j * kStep[i]] = j;\r
- if(currentVariant == V_TENJIKU)\r
+// for(i=0; i<8; i++)\r
+// for(j=1; j<BH; j++)\r
+// dist[j * kStep[i]] = j;\r
+// if(currentVariant == V_TENJIKU)\r
for(i=1-BH; i<BH; i++) for(j=1-BH; j<BH; j++) dist[BW*i+j] = abs(i) > abs(j) ? abs(i) : abs(j);\r
\r
// hash key tables\r
for(i=0; i<BH; i++) for(j=0; j<BH; j++) {\r
int s = BW*i + j, d = BH*(BH-2) - abs(2*i - BH + 1)*(BH-1) - (2*j - BH + 1)*(2*j - BH + 1);\r
PST[s] = 0;\r
- PST[BH+s] = d/4 - (i == 0 || i == BH-1 ? 15 : 0) - (j == 0 || j == BH-1 ? 15 : 0);\r
+ PST[BH+s] = d/4 - (i == 0 || i == BH-1 ? 5 : 0) - (j == 0 || j == BH-1 ? 5 : 0)\r
+ + 2*(i==zone || i==BH-zone-1);\r
PST[BH*BW+s] = d/6;\r
PST[BH*BW+BH+s] = d/12;\r
+ PST[2*BH*BW+s] = j < 3 || j > BH-4 ? (i < 3 ? 5 : i == 3 ? 2 : i == 4 ? 1 : 0) : 0;\r
}\r
\r
p[EDGE].qval = 5; // tenjiku jump-capturer sentinel\r
return tot;\r
}\r
\r
+int\r
+Dtest ()\r
+{\r
+ int r, f, score, tot=0;\r
+ for(r=0; r<BH; r++) for(f=0; f<BH; f++) {\r
+ int s = BW*r+f;\r
+ int piece = board[s];\r
+ if(!piece) continue;\r
+ score = p[piece].promoGain;\r
+ if(piece & 1) tot += score; else tot -= score;\r
+ }\r
+ return tot;\r
+}\r
+\r
int flag;\r
\r
inline int\r
}\r
} else\r
if(r == M) { // FIDE Pawn; check double-move\r
- if(!NewNonCapture(x, x+v, pFlag) && promoBoard[x-v])\r
- NewNonCapture(x, x+2*v+DEFER, pFlag); // use promoSuppress flag as e.p. flag\r
+ if(!NewNonCapture(x, x+v, pFlag) && chessFlag && promoBoard[x-v])\r
+ NewNonCapture(x, x+2*v, pFlag), moveStack[msp-1] |= DEFER; // use promoSuppress flag as e.p. flag\r
}\r
continue;\r
}\r
u->piece = board[u->from];\r
board[u->from] = EMPTY;\r
u->booty = 0;\r
+ u->gain = 0;\r
+ u->loss = 0;\r
u->revMoveCount = cnt50++;\r
u->savKeyL = hashKeyL;\r
u->savKeyH = hashKeyH;\r
u->epVictim[0] = EMPTY;\r
+ u->saveDelta = promoDelta;\r
+ u->filling = filling;\r
\r
if(p[u->piece].promoFlag & LAST_RANK) cnt50 = 0; // forward piece: move is irreversible\r
// TODO: put in some test for forward moves of non-backward pieces?\r
u->to = u->from + toList[u->to - SPECIAL];\r
u->booty += p[u->epVictim[1]].value + PST[p[u->epVictim[1]].pst + u->ep2Square];\r
u->booty += p[u->epVictim[0]].value + PST[p[u->epVictim[0]].pst + u->epSquare];\r
+ u->gain += p[u->epVictim[1]].value;\r
+ u->gain += p[u->epVictim[0]].value;\r
+ promoDelta += p[u->epVictim[0]].promoGain;\r
+ promoDelta += p[u->epVictim[1]].promoGain;\r
+ filling -= p[u->epVictim[0]].bulk;\r
+ filling -= p[u->epVictim[1]].bulk;\r
hashKeyL ^= p[u->epVictim[0]].pieceKey * squareKey[u->epSquare];\r
hashKeyH ^= p[u->epVictim[0]].pieceKey * squareKey[u->epSquare+BH];\r
hashKeyL ^= p[u->epVictim[1]].pieceKey * squareKey[u->ep2Square];\r
board[x] = EMPTY; // remove it\r
p[burnVictim].pos = ABSENT;\r
u->booty += p[burnVictim].value + PST[p[burnVictim].pst + x];\r
+ u->gain += p[burnVictim].value;\r
+ promoDelta += p[burnVictim].promoGain;\r
+ filling -= p[burnVictim].bulk;\r
hashKeyL ^= p[burnVictim].pieceKey * squareKey[x];\r
hashKeyH ^= p[burnVictim].pieceKey * squareKey[x + BH];\r
cnt50 = 0; // actually burning something makes the move irreversible\r
\r
u->victim = board[u->to];\r
p[u->victim].pos = ABSENT;\r
+ filling += p[u->new].bulk - p[u->piece].bulk - p[u->victim].bulk;\r
+ promoDelta += p[u->new].promoGain - p[u->piece].promoGain + p[u->victim].promoGain;\r
u->booty += p[u->victim].value + PST[p[u->victim].pst + u->to];\r
- if(u->victim != EMPTY) cnt50 = 0; // capture irreversible\r
+ u->gain += p[u->victim].value;\r
+ if(u->victim != EMPTY) {\r
+ cnt50 = 0; // capture irreversible\r
+ if(attacks[2*u->to + xstm]) u->loss = p[u->piece].value; // protected\r
+ }\r
\r
p[u->new].pos = u->to;\r
board[u->to] = u->new;\r
+ promoDelta = -promoDelta;\r
\r
hashKeyL ^= p[u->new].pieceKey * squareKey[u->to]\r
^ p[u->piece].pieceKey * squareKey[u->from]\r
cnt50 = u->revMoveCount;\r
hashKeyL = u->savKeyL;\r
hashKeyH = u->savKeyH;\r
+ filling = u->filling;\r
+ promoDelta = u->saveDelta;\r
}\r
\r
void\r
}\r
\r
int\r
-Evaluate ()\r
+Evaluate (int difEval)\r
{\r
- return (stm ? mobilityScore : -mobilityScore);\r
+ int wLion, bLion, score=mobilityScore;\r
+\r
+#ifdef LIONTRAP\r
+#define lionTrap (PST + 2*BH*BW)\r
+ // penalty for Lion in enemy corner, when enemy Lion is nearby\r
+ if(p[WHITE+2].value == 10*LVAL && (wLion = p[WHITE+2].pos) != ABSENT)\r
+ if(p[BLACK+2].value == 10*LVAL && (bLion = p[BLACK+2].pos) != ABSENT) { // both have a Lion\r
+ static int distFac[36] = { 0, 0, 10, 9, 8, 7, 5, 3, 1 };\r
+ score -= ( (1+9*!attacks[2*wLion+WHITE]) * lionTrap[BW*(BH-1)+BH-1-wLion]\r
+ - (1+9*!attacks[2*bLion+BLACK]) * lionTrap[bLion] ) * distFac[dist[wLion - bLion]];\r
+ }\r
+#endif\r
+\r
+ return difEval - (filling*filling*promoDelta >> 16) + (stm ? score : -score);\r
}\r
\r
inline void\r
if(p[i].pos != ABSENT) tb->fireMask |= fireFlags[i-2];\r
}\r
\r
-#define QSdepth 0\r
+void TerminationCheck();\r
+\r
+#define QSdepth 4\r
\r
int\r
-Search (int alpha, int beta, int difEval, int depth, int oldPromo, int promoSuppress)\r
+Search (int alpha, int beta, int difEval, int depth, int oldPromo, int promoSuppress, int threshold)\r
{\r
- int i, j, k, firstMove, oldMSP = msp, curMove, sorted, bad, phase, king, iterDep, replyDep, nextVictim, to, defer, dubious, bestMoveNr;\r
- int resDep;\r
+ int i, j, k, phase, king, nextVictim, to, defer, autoFail=0;\r
+ int firstMove, oldMSP = msp, curMove, sorted, bad, dubious, bestMoveNr;\r
+ int resDep, iterDep, ext;\r
int myPV = pvPtr;\r
- int score, bestScore, curEval, iterAlpha;\r
+ int score, bestScore, oldBest, curEval, iterAlpha;\r
Move move, nullMove;\r
UndoInfo tb;\r
-if(PATH) /*pboard(board),pmap(attacks, BLACK),*/printf("search(%d) {%d,%d} eval=%d, stm=%d\n",depth,alpha,beta,difEval,stm),fflush(stdout);\r
+#ifdef HASH\r
+ Move hashMove; int index, nr, hit;\r
+#endif\r
+if(PATH) /*pboard(board),pmap(attacks, BLACK),*/printf("search(%d) {%d,%d} eval=%d, stm=%d (flag=%d)\n",depth,alpha,beta,difEval,stm,abortFlag),fflush(stdout);\r
xstm = stm ^ WHITE;\r
//printf("map made\n");fflush(stdout);\r
+\r
+ // TSUME filter\r
+ if(tsume && tsume & stm+1) {\r
+ k = p[king=royal[stm]].pos;\r
+// if( k == ABSENT) k = p[king + 2].pos;\r
+ if( k != ABSENT && !attacks[2*k + xstm]) {\r
+ retDep = 60; return INF; // we win when not in check\r
+ }\r
+ }\r
+\r
// KING CAPTURE\r
k = p[king=royal[xstm]].pos;\r
if( k != ABSENT) {\r
}\r
//printf("King safe\n");fflush(stdout);\r
// EVALUATION & WINDOW SHIFT\r
- curEval = difEval + Evaluate();\r
+ curEval = Evaluate(difEval);\r
alpha -= (alpha < curEval);\r
beta -= (beta <= curEval);\r
\r
- nodes++;\r
+ if(!(nodes++ & 4095)) TerminationCheck();\r
pv[pvPtr++] = 0; // start empty PV, directly behind PV of parent\r
\r
+\r
firstMove = curMove = sorted = msp += 50; // leave 50 empty slots in front of move list\r
- tb.fireMask = phase = 0; iterDep=1; replyDep = (depth < 1 ? depth : 1) - 1;\r
- do {\r
+ iterDep = -(depth == 0); tb.fireMask = phase = 0;\r
+\r
+#ifdef HASH\r
+ index = (hashKeyL ^ 327*stm ^ oldPromo*(63121 + promoSuppress)) & hashMask;\r
+ nr = (hashKeyL >> 30) & 3; hit = -1;\r
+ if(hashTable[index].lock[nr] == hashKeyH) hit = nr; else\r
+ if(hashTable[index].lock[4] == hashKeyH) hit = 4;\r
+if(PATH) printf("# probe hash index=%x hit=%d\n", index, hit),fflush(stdout);\r
+ if(hit >= 0) {\r
+ bestScore = hashTable[index].score[hit];\r
+ hashMove = hashTable[index].move[hit];\r
+ if((bestScore <= alpha || hashTable[index].flag[hit] & H_LOWER) &&\r
+ (bestScore >= beta || hashTable[index].flag[hit] & H_UPPER) ) {\r
+ iterDep = resDep = hashTable[index].depth[hit]; bestMoveNr = 0;\r
+ if(!level) iterDep = 0; // no hash cutoff in root\r
+ }\r
+ } else { // decide on replacement\r
+ if(depth >= hashTable[index].depth[nr]) hit = nr; else hit = 4;\r
+ hashMove = 0;\r
+ }\r
+if(PATH) printf("# iterDep = %d score = %d move = %s\n",iterDep,bestScore,MoveToText(hashMove,0)),fflush(stdout);\r
+#endif\r
+\r
+ if(depth > QSdepth && iterDep < QSdepth) iterDep = QSdepth; // full-width: start at least from 1-ply\r
+if(PATH)printf("iterDep=%d\n", iterDep);\r
+ while(++iterDep <= depth) {\r
if(flag && depth>= 0) printf("iter %d:%d\n", depth,iterDep),fflush(stdout);\r
+ oldBest = bestScore;\r
iterAlpha = alpha; bestScore = -INF; bestMoveNr = 0; resDep = 60;\r
+if(PATH)printf("new iter %d\n", iterDep);\r
+ if(depth <= QSdepth) {\r
+ bestScore = curEval; resDep = QSdepth;\r
+ if(bestScore > alpha) {\r
+ alpha = bestScore;\r
+if(PATH)printf("stand pat %d\n", bestScore);\r
+ if(bestScore >= beta) goto cutoff;\r
+ }\r
+ }\r
for(curMove = firstMove; ; curMove++) { // loop over moves\r
if(flag && depth>= 0) printf("phase=%d: first/curr/last = %d / %d / %d\n", phase, firstMove, curMove, msp);fflush(stdout);\r
// MOVE SOURCE\r
if(curMove >= msp) { // we ran out of moves; generate some new\r
+if(PATH)printf("new moves, phase=%d\n", phase);\r
switch(phase) {\r
case 0: // null move\r
- if(depth <= 0) {\r
- bestScore = curEval; resDep = QSdepth;\r
- if(bestScore >= beta || depth < -1) goto cutoff;\r
- }\r
-#if 0\r
- if(curEval >= beta) {\r
+#ifdef NULLMOVE\r
+ if(depth > QSdepth && curEval >= beta) {\r
+ int nullDep = depth - 3;\r
stm ^= WHITE;\r
- score = -Search(-beta, -iterAlpha, -difEval, depth-3, promoSuppress & SQUARE, ABSENT);\r
+ score = -Search(-beta, 1-beta, -difEval, nullDep<QSdepth ? QSdepth : nullDep, promoSuppress & SQUARE, ABSENT, INF);\r
stm ^= WHITE;\r
if(score >= beta) { msp = oldMSP; retDep += 3; return score + (score < curEval); }\r
}\r
phase = 1;\r
case 1: // hash move\r
phase = 2;\r
+#ifdef HASH\r
+ if(hashMove && (depth > QSdepth || // must be capture in QS\r
+ (hashMove & SQUARE) >= SPECIAL || board[hashMove & SQUARE] != EMPTY)) {\r
+ moveStack[sorted = msp++] = hashMove;\r
+ goto extractMove;\r
+ }\r
+#endif\r
case 2: // capture-gen init\r
- nextVictim = xstm;\r
+ nextVictim = xstm; autoFail = (depth == 0);\r
phase = 3;\r
case 3: // generate captures\r
if(PATH) printf("%d:%2d:%2d next victim %d/%d\n",level,depth,iterDep,curMove,msp);\r
if(iterDep <= QSdepth + 1 && 2*group + curEval + 30 < alpha) { resDep = QSdepth + 1; goto cutoff; }\r
if(PATH) printf("%d:%2d:%2d group=%d, to=%c%d\n",level,depth,iterDep,group,to%BW+'a',to/BW+ONE);\r
GenCapts(to, 0);\r
-if(PATH) printf("%d:%2d:%2d msp=%d\n",level,depth,iterDep,msp);\r
+if(PATH) printf("%d:%2d:%2d first=%d msp=%d\n",level,depth,iterDep,firstMove,msp);\r
while(nextVictim < last[xstm] && p[nextVictim+2].value == group) { // more victims of same value exist\r
to = p[nextVictim += 2].pos; // take next\r
if(to == ABSENT) continue; // ignore if absent\r
GenCapts(to, 0);\r
if(PATH) printf("%d:%2d:%2d msp=%d\n",level,depth,iterDep,msp);\r
}\r
-//printf("captures on %d generated, msp=%d\n", nextVictim, msp);\r
- goto extractMove;\r
+if(PATH) printf("captures on %d generated, msp=%d, group=%d, threshold=%d\n", nextVictim, msp, group, threshold);\r
+ goto extractMove; // in auto-fail phase, only search if they might auto-fail-hi\r
+ }\r
+if(PATH) printf("# autofail=%d\n", autoFail);\r
+ if(autoFail) { // non-captures cannot auto-fail; flush queued captures first\r
+if(PATH) printf("# autofail end (%d-%d)\n", firstMove, msp);\r
+ autoFail = 0; curMove = firstMove - 1; continue; // release stashed moves for search\r
}\r
// if(currentVariant == V_CHESS && promoSuppress != ABSENT) { // e.p.\r
// int n = board[promoSuppress-1];\r
#endif\r
phase = 5;\r
case 5: // killers\r
- if(depth <= QSdepth) { resDep = QSdepth; goto cutoff; }\r
+ if(depth <= QSdepth) { if(resDep > QSdepth) resDep = QSdepth; goto cutoff; }\r
phase = 6;\r
case 6: // non-captures\r
nonCapts = msp;\r
nullMove = GenNonCapts(oldPromo);\r
+#ifdef KILLERS\r
+ { // swap killers to front\r
+ Move h = killer[level][0]; int j = curMove;\r
+ for(i=curMove; i<msp; i++) if(moveStack[i] == h) { moveStack[i] = moveStack[j]; moveStack[j++] = h; break; }\r
+ h = killer[level][1];\r
+ for(i=curMove; i<msp; i++) if(moveStack[i] == h) { moveStack[i] = moveStack[j]; moveStack[j++] = h; break; }\r
+ }\r
+#endif\r
phase = 7;\r
sorted = msp; // do not sort noncapts\r
break;\r
\r
// MOVE EXTRACTION\r
extractMove:\r
-if(flag & depth >= 0) printf("%2d:%d extract %d/%d\n", depth, iterDep, curMove, msp);\r
+//if(flag & depth >= 0 || (PATH)) printf("%2d:%d extract %d/%d\n", depth, iterDep, curMove, msp);\r
if(curMove > sorted) {\r
move = moveStack[sorted=j=curMove];\r
for(i=curMove+1; i<msp; i++)\r
// RECURSION\r
stm ^= WHITE;\r
defer = MakeMove(move, &tb);\r
+ ext = (depth == 0); // when out of depth we extend captures if there was no auto-fail-hi\r
+\r
+// if(level == 1 && randomize) tb.booty += (hashKeyH * seed >> 24 & 31) - 20;\r
+\r
+ if(autoFail) {\r
+ UnMake(&tb); // never search moves during auto-fail phase\r
+ xstm = stm; stm ^= WHITE;\r
+ if(tb.gain <= threshold) { // we got to moves that cannot possibly auto-fail\r
+ autoFail = 0; curMove = firstMove-1; continue; // release all for search\r
+ }\r
+ if(tb.gain - tb.loss > threshold) {\r
+ bestScore = INF+1; resDep = 0; goto leave; // auto-fail-hi\r
+ } else continue; // ignore for now if not obvious refutation\r
+ }\r
\r
if(flag & depth >= 0) printf("%2d:%d made %d/%d %s\n", depth, iterDep, curMove, msp, MoveToText(moveStack[curMove], 0));\r
for(i=2; i<=cnt50; i+=2) if(repStack[level-i+200] == hashKeyH) {\r
+ if(repDraws) { score = 0; goto repetition; }\r
moveStack[curMove] = 0; // erase forbidden move\r
if(!level) repeatMove[repCnt++] = move & 0xFFFFFF; // remember outlawed move\r
score = -INF; moveStack[curMove] = 0; goto repetition;\r
}\r
repStack[level+200] = hashKeyH;\r
\r
-if(PATH) printf("%d:%2d:%d %3d %6x %-10s %6d %6d\n", level, depth, iterDep, curMove, moveStack[curMove], MoveToText(moveStack[curMove], 0), score, bestScore);\r
+if(PATH) printf("%d:%2d:%d %3d %6x %-10s %6d %6d\n", level, depth, iterDep, curMove, moveStack[curMove], MoveToText(moveStack[curMove], 0), score, bestScore),fflush(stdout);\r
path[level++] = move;\r
attacks += 2*bsize;\r
MapFromScratch(attacks); // for as long as incremental update does not work.\r
}\r
}\r
#if 1\r
- score = -Search(-beta, -iterAlpha, -difEval - tb.booty, replyDep, promoSuppress & ~PROMOTE, defer);\r
+ score = -Search(-beta, -iterAlpha, -difEval - tb.booty, iterDep-1+ext, promoSuppress & ~PROMOTE, defer, depth ? INF : tb.gain);\r
#else\r
score = 0;\r
#endif\r
repetition:\r
UnMake(&tb);\r
xstm = stm; stm ^= WHITE;\r
+ if(abortFlag > 0) { // unwind search\r
+printf("# abort (%d) @ %d\n", abortFlag, level);\r
+ if(curMove == firstMove) bestScore = oldBest, bestMoveNr = firstMove; // none searched yet\r
+ goto leave;\r
+ }\r
#if 1\r
-if(PATH) printf("%d:%2d:%d %3d %6x %-10s %6d %6d\n", level, depth, iterDep, curMove, moveStack[curMove], MoveToText(moveStack[curMove], 0), score, bestScore);\r
+if(PATH) printf("%d:%2d:%d %3d %6x %-10s %6d %6d (%d)\n", level, depth, iterDep, curMove, moveStack[curMove], MoveToText(moveStack[curMove], 0), score, bestScore, GetTickCount()),fflush(stdout);\r
\r
// ALPHA-BETA STUFF\r
if(score > bestScore) {\r
}\r
bestMoveNr = firstMove;\r
if(score >= beta) { // beta cutoff\r
- // update killer\r
- resDep = retDep;\r
+#ifdef KILLERS\r
+ if(iterDep == depth && move != killer[level][0]\r
+ && (tb.victim == EMPTY && (move & SQUARE) < SPECIAL)) {\r
+ // update killer\r
+ killer[level][1] = killer[level][0]; killer[level][0] = move;\r
+ }\r
+#endif\r
+ resDep = retDep+1-ext;\r
goto cutoff;\r
}\r
{ int i=pvPtr;\r
}\r
\r
}\r
- if(retDep < resDep) resDep = retDep;\r
+ if(retDep+1-ext < resDep) resDep = retDep+1-ext;\r
#endif\r
} // next move\r
cutoff:\r
if(!level) { // root node\r
+ lastRootIter = GetTickCount() - startTime;\r
if(postThinking > 0) {\r
int i; // WB thinking output\r
- printf("%d %d %d %d", iterDep, bestScore, (GetTickCount() - startTime)/10, nodes);\r
+ printf("%d %d %d %d", iterDep-QSdepth, bestScore, lastRootIter/10, nodes);\r
+ if(ponderMove) printf(" (%s)", MoveToText(ponderMove, 0));\r
for(i=0; pv[i]; i++) printf(" %s", MoveToText(pv[i], 0));\r
- if(iterDep == 1) printf(" { root eval = %4.2f dif = %4.2f; abs = %4.2f}", curEval/100., difEval/100., PSTest()/100.);\r
+ if(iterDep == QSdepth+1) printf(" { root eval = %4.2f dif = %4.2f; abs = %4.2f f=%d D=%4.2f/%4.2f}", curEval/100., difEval/100., PSTest()/100., filling, promoDelta/100., Dtest()/100.);\r
printf("\n");\r
fflush(stdout);\r
}\r
- if(GetTickCount() - startTime > tlim1) break; // do not start iteration we can (most likely) not finish\r
+ if(!(abortFlag & 1) && GetTickCount() - startTime > tlim1) break; // do not start iteration we can (most likely) not finish\r
}\r
- replyDep = iterDep;\r
- } while(++iterDep <= depth); // next depth\r
+ if(resDep > iterDep) iterDep = resDep; // skip iterations if we got them for free\r
+#ifdef HASH\r
+ // hash store\r
+ hashTable[index].lock[hit] = hashKeyH;\r
+ hashTable[index].depth[hit] = iterDep;\r
+ hashTable[index].score[hit] = bestScore;\r
+ hashTable[index].flag[hit] = (bestScore < beta) * H_UPPER;\r
+ if(bestScore > alpha) {\r
+ hashTable[index].flag[hit] |= H_LOWER;\r
+ hashTable[index].move[hit] = bestMoveNr ? moveStack[bestMoveNr] : 0;\r
+ } else hashTable[index].move[hit] = 0;\r
+#endif\r
+ } // next depth\r
+leave:\r
retMSP = msp;\r
retFirst = firstMove;\r
msp = oldMSP; // pop move list\r
pvPtr = myPV; // pop PV\r
retMove = bestMoveNr ? moveStack[bestMoveNr] : 0;\r
- retDep = resDep + 1;\r
-if(PATH) printf("return %d: %d %d\n", depth, bestScore, curEval);\r
+ retDep = resDep;\r
+if(PATH) printf("return %d: %d %d (t=%d s=%d lim=%d)\n", depth, bestScore, curEval, GetTickCount(), startTime, tlim1),fflush(stdout);\r
return bestScore + (bestScore < curEval);\r
}\r
\r
{\r
int i, j;\r
for(i=0; i<182; i++) {\r
- printf("%3d. %3d %3d %4d %02x %d ", i, p[i].value, p[i].promo, p[i].pos, p[i].promoFlag&255, p[i].qval);\r
+ printf("%3d. %3d %3d %4d %02x %d %x %3d ", i, p[i].value, p[i].promo, p[i].pos, p[i].promoFlag&255, p[i].qval, p[i].bulk, p[i].promoGain);\r
for(j=0; j<8; j++) printf(" %2d", p[i].range[j]);\r
if(i<2 || i>11) printf("\n"); else printf(" %02x\n", fireFlags[i-2]&255);\r
}\r
#define INVALID 0\r
\r
// some parameter of your engine\r
- #define MAXMOVES 500 /* maximum game length */\r
- #define MAXPLY 60 /* maximum search depth */\r
+ #define MAXMOVES 2000 /* maximum game length */\r
+ #define MAXPLY 30 /* maximum search depth */\r
\r
#define OFF 0\r
#define ON 1\r
\r
-#define DEFAULT_FEN ""\r
-\r
typedef Move MOVE;\r
\r
int moveNr; // part of game state; incremented by MakeMove\r
void SetMemorySize(int n); // if n is different from last time, resize all tables to make memory usage below n MB\r
char *MoveToText(MOVE move, int m); // converts the move from your internal format to text like e2e2, e1g1, a7a8q.\r
MOVE ParseMove(char *moveText); // converts a long-algebraic text move to your internal move format\r
- int SearchBestMove(int stm, int timeLeft, int mps, int timeControl, int inc, int timePerMove, MOVE *move, MOVE *ponderMove);\r
+ int SearchBestMove(MOVE *move, MOVE *ponderMove);\r
void PonderUntilInput(int stm); // Search current position for stm, deepening forever until there is input.\r
\r
UndoInfo undoInfo;\r
if(isalpha(*fen)) {\r
char *table = fenNames;\r
n = *fen > 'Z' ? 'a' - 'A' : 0;\r
- if(table[2* (*fen - 'A' - n)] == '.') *p++ = *fen; else {\r
+ if((currentVariant == V_CHESS || currentVariant == V_SHATRANJ || currentVariant == V_MAKRUK) && *fen - n == 'N' // In Chess N is Knight, not Lion\r
+ || table[2* (*fen - 'A' - n)] == '.') *p++ = *fen; else {\r
*p++ = ':';\r
*p++ = table[2* (*fen - 'A' - n)] + n;\r
*p++ = table[2* (*fen - 'A' - n)+1] + n;\r
if(q = strchr(fen, ' ')) stm = (q[1] == 'b' ? BLACK : WHITE); // fen contains color field\r
if(strchr(fen, '.') || strchr(fen, ':')) array = fen; else array = Convert(fen);\r
}\r
+ rootEval = promoDelta = filling = cnt50 = moveNr = 0;\r
SetUp(array, currentVariant);\r
sup0 = sup1 = sup2 = ABSENT;\r
- rootEval = cnt50 = hashKeyH = hashKeyL = moveNr = 0;\r
+ hashKeyH = hashKeyL = 87620895*currentVariant;\r
return stm;\r
}\r
\r
void\r
SetMemorySize (int n)\r
{\r
+#ifdef HASH\r
+ static HashBucket *realHash;\r
+ static intptr_t oldSize;\r
+ intptr_t l, m = 1;\r
+ while(m*sizeof(HashBucket) <= n*512UL) m <<= 1; // take largest power-of-2 that fits\r
+ if(m != oldSize) {\r
+ if(oldSize) free(realHash);\r
+ hashMask = m*1024 - 1; oldSize = m;\r
+ realHash = malloc(m*1024*sizeof(HashBucket) + 64);\r
+ l = (intptr_t) realHash; hashTable = (HashBucket*) (l & ~63UL); // align with cache line\r
+ }\r
+#endif\r
}\r
\r
char *\r
{\r
static char buf[50];\r
int f = move>>SQLEN & SQUARE, g = f, t = move & SQUARE;\r
+ char *promoChar = "";\r
if(f == t) { sprintf(buf, "@@@@"); return buf; } // null-move notation in WB protocol\r
buf[0] = '\0';\r
if(t >= SPECIAL) { // kludgy! Print as side effect non-standard WB command to remove victims from double-capture (breaks hint command!)\r
}\r
t = g + toList[t - SPECIAL];\r
}\r
- sprintf(buf+strlen(buf), "%c%d%c%d%s", f%BW+'a', f/BW+ONE, t%BW+'a', t/BW+ONE, move & PROMOTE ? "+" : "");\r
+ if(move & PROMOTE) promoChar = currentVariant == V_MAKRUK ? "m" : repDraws ? "q" : "+";\r
+ sprintf(buf+strlen(buf), "%c%d%c%d%s", f%BW+'a', f/BW+ONE, t%BW+'a', t/BW+ONE, promoChar);\r
return buf;\r
}\r
\r
return 2 + (r + ONE > 9);\r
}\r
\r
+int listStart, listEnd;\r
+char boardCopy[BSIZE];\r
+\r
+void\r
+ListMoves ()\r
+{ // create move list on move stack\r
+ int i;\r
+ for(i=0; i< BSIZE; i++) boardCopy[i] = !!board[i];\r
+MapFromScratch(attacks);\r
+ postThinking--; repCnt = 0; tlim1 = tlim2 = tlim3 = 1e8; abortFlag = msp = 0;\r
+ Search(-INF-1, INF+1, 0, QSdepth+1, sup1 & ~PROMOTE, sup2, INF);\r
+ postThinking++;\r
+ listStart = retFirst; listEnd = msp = retMSP;\r
+}\r
+\r
MOVE\r
ParseMove (char *moveText)\r
{\r
t2 = SPECIAL + 8*i + j;\r
}\r
ret = f<<SQLEN | t2;\r
- if(*moveText == '+') ret |= PROMOTE;\r
+ if(*moveText != '\n' && *moveText != '=') ret |= PROMOTE;\r
printf("# suppress = %c%d\n", sup1%BW+'a', sup1/BW);\r
-MapFromScratch(attacks);\r
- postThinking--; repCnt = 0;\r
- Search(-INF-1, INF+1, 0, 1, sup1 & ~PROMOTE, sup2);\r
- postThinking++;\r
- for(i=retFirst; i<retMSP; i++) {\r
+// ListMoves();\r
+ for(i=listStart; i<listEnd; i++) {\r
if(moveStack[i] == INVALID) continue;\r
if(c == '@' && (moveStack[i] & SQUARE) == (moveStack[i] >> SQLEN & SQUARE)) break; // any null move matches @@@@\r
if((moveStack[i] & (PROMOTE | DEFER-1)) == ret) break;\r
if((moveStack[i] & DEFER-1) == ret) deferred = i; // promoted version of entered non-promotion is legal\r
}\r
- if(i>=retMSP) { // no exact match\r
+printf("# moveNr = %d in {%d,%d}\n", i, listStart, listEnd);\r
+ if(i>=listEnd) { // no exact match\r
if(deferred) { // but maybe non-sensical deferral\r
int flags = p[board[f]].promoFlag;\r
printf("# deferral of %d\n", deferred);\r
if(!(flags & promoBoard[f])) moveStack[i] |= DEFER; // came from outside zone, so essential deferral\r
}\r
}\r
- if(i >= retMSP) {\r
- for(i=retFirst; i<retMSP; i++) printf("# %d. %08x %08x %s\n", i-50, moveStack[i], ret, MoveToText(moveStack[i], 0));\r
+ if(i >= listEnd) {\r
+ for(i=listStart; i<listEnd; i++) printf("# %d. %08x %08x %s\n", i-50, moveStack[i], ret, MoveToText(moveStack[i], 0));\r
reason = NULL;\r
for(i=0; i<repCnt; i++) {if((repeatMove[i] & 0xFFFFFF) == ret) {\r
if(repeatMove[i] & 1<<24) reason = (repeatMove[i] & 1<<25 ? "Distant capture of protected Lion" : "Counterstrike against Lion");\r
}\r
}\r
}\r
- return (i >= retMSP ? INVALID : moveStack[i]);\r
+ return (i >= listEnd ? INVALID : moveStack[i]);\r
}\r
\r
void\r
char b[BSIZE], buf[2000], *q;\r
for(i=0; i<bsize; i++) b[i] = 0;\r
ReadSquare(coords, &sqr);\r
-MapFromScratch(attacks);\r
-//pmap(attacks, WHITE);\r
-//pmap(attacks, BLACK);\r
-//flag=1;\r
- postThinking--; repCnt = 0;\r
- Search(-INF-1, INF+1, 0, 1, sup1 & ~PROMOTE, sup2);\r
- postThinking++;\r
-flag=0;\r
- for(i=retFirst; i<retMSP; i++) {\r
+// ListMoves();\r
+ for(i=listStart; i<listEnd; i++) {\r
if(sqr == (moveStack[i]>>SQLEN & SQUARE)) {\r
int t = moveStack[i] & SQUARE;\r
if(t >= SPECIAL) continue;\r
- b[t] = (board[t] == EMPTY ? 'Y' : 'R'); cnt++;\r
+ b[t] = (!boardCopy[t] ? 'Y' : 'R'); cnt++;\r
}\r
}\r
if(!cnt) { // no moves from given square\r
if(sqr != lastPut) return; // refrain from sending empty FEN\r
// we lifted a piece for second leg of move\r
- for(i=retFirst; i<retMSP; i++) {\r
+ for(i=listStart; i<listEnd; i++) {\r
if(lastLift == (moveStack[i]>>SQLEN & SQUARE)) {\r
int e, t = moveStack[i] & SQUARE;\r
if(t < SPECIAL) continue; // only special moves\r
e = lastLift + epList[t - SPECIAL]; // decode\r
t = lastLift + toList[t - SPECIAL];\r
if(e != sqr) continue;\r
- b[t] = (board[t] == EMPTY ? 'Y' : 'R'); cnt++;\r
+ b[t] = (!boardCopy[t] ? 'Y' : 'R'); cnt++;\r
}\r
}\r
if(!cnt) return;\r
printf("highlight %s\n", buf);\r
}\r
\r
-int\r
-SearchBestMove (int stm, int timeLeft, int mps, int timeControl, int inc, int timePerMove, MOVE *move, MOVE *ponderMove)\r
+int timeLeft; // timeleft on engine's clock\r
+int mps, timeControl, inc, timePerMove; // time-control parameters, to be used by Search\r
+char inBuf[8000], command[80], ponderMoveText[20];\r
+\r
+void\r
+SetSearchTimes (int timeLeft)\r
{\r
- int score, targetTime, movesLeft = BW*BH/4 + 20;\r
+ int targetTime, movesLeft = BW*BH/4 + 20;\r
if(mps) movesLeft = mps - (moveNr>>1)%mps;\r
- targetTime = timeLeft*10 / (movesLeft + 2) + 1000 * inc;\r
+ targetTime = (timeLeft - 1000*inc) / (movesLeft + 2) + 1000 * inc;\r
if(moveNr < 30) targetTime *= 0.5 + moveNr/60.; // speedup in opening\r
- if(timePerMove > 0) targetTime = timeLeft * 5;\r
- startTime = GetTickCount();\r
+ if(timePerMove > 0) targetTime = 0.5*timeLeft, movesLeft = 1;\r
tlim1 = 0.2*targetTime;\r
tlim2 = 1.9*targetTime;\r
+ tlim3 = 5*timeLeft / (movesLeft + 4.1);\r
+printf("# limits %d, %d, %d mode = %d\n", tlim1, tlim2, tlim3, abortFlag);\r
+}\r
+\r
+int\r
+SearchBestMove (MOVE *move, MOVE *ponderMove)\r
+{\r
+ int score;\r
+printf("# SearchBestMove\n");\r
+ startTime = GetTickCount();\r
nodes = 0;\r
+printf("# s=%d\n", startTime);fflush(stdout);\r
MapFromScratch(attacks);\r
retMove = INVALID; repCnt = 0;\r
- score = Search(-INF-1, INF+1, rootEval, 20, sup1, sup2);\r
+ score = Search(-INF-1, INF+1, rootEval, maxDepth, sup1, sup2, INF);\r
*move = retMove;\r
- *ponderMove = INVALID;\r
+ *ponderMove = pv[1];\r
+printf("# best=%s\n", MoveToText(pv[0],0));\r
+printf("# ponder=%s\n", MoveToText(pv[1],0));\r
return score;\r
}\r
\r
-void\r
-PonderUntilInput (int stm)\r
-{\r
-}\r
\r
int TakeBack(int n)\r
{ // reset the game and then replay it to the desired point\r
int last, stm;\r
- stm = Setup2(NULL);\r
+ Init(currentVariant); stm = Setup2(NULL);\r
printf("# setup done");fflush(stdout);\r
last = moveNr - n; if(last < 0) last = 0;\r
for(moveNr=0; moveNr<last; moveNr++) stm = MakeMove2(stm, gameMove[moveNr]),printf("make %2d: %x\n", moveNr, gameMove[moveNr]);\r
else printf("0-1%s\n", tail);\r
}\r
\r
+ void GetLine(int root)\r
+ {\r
+ int i, c;\r
+ while(1) {\r
+ // wait for input, and read it until we have collected a complete line\r
+ for(i = 0; (inBuf[i] = c = getchar()) != '\n'; i++) if(c == EOF || i>7997) exit(0);\r
+ inBuf[i+1] = 0;\r
+\r
+ // extract the first word\r
+ sscanf(inBuf, "%s", command);\r
+printf("# in (mode = %d,%d): %s\n", root, abortFlag, command);\r
+ if(!strcmp(command, "otim")) { continue; } // do not start pondering after receiving time commands, as move will follow immediately\r
+ if(!strcmp(command, "time")) { sscanf(inBuf, "time %d", &timeLeft); continue; }\r
+ if(!strcmp(command, "put")) { ReadSquare(inBuf+4, &lastPut); continue; } // ditto\r
+ if(!strcmp(command, ".")) { inBuf[0] = 0; return; } // ignore for now\r
+ if(!strcmp(command, "lift")) { inBuf[0] = 0; Highlight(inBuf+5); return; } // treat here\r
+ if(!root && !strcmp(command, "usermove")) {\r
+printf("# move = %s#ponder = %s", inBuf+9, ponderMoveText);\r
+ abortFlag = !!strcmp(inBuf+9, ponderMoveText);\r
+ if(!abortFlag) { // ponder hit, continue as time-based search\r
+printf("# ponder hit\n");\r
+ SetSearchTimes(10*timeLeft + GetTickCount() - startTime); // add time we already have been pondering to total\r
+ if(lastRootIter > tlim1) abortFlag = 2; // abort instantly if we are in iteration we should not have started\r
+ inBuf[0] = 0; ponderMove = INVALID;\r
+ return;\r
+ }\r
+ }\r
+ abortFlag = 1;\r
+ return;\r
+ }\r
+ }\r
+\r
+ void\r
+ TerminationCheck()\r
+ {\r
+ if(abortFlag < 0) { // check for input\r
+ if(InputWaiting()) GetLine(0); // read & examine input command\r
+ } else { // check for time\r
+ if(GetTickCount() - startTime > tlim3) abortFlag = 2;\r
+ }\r
+ }\r
+\r
main()\r
{\r
int engineSide=NONE; // side played by engine\r
- int timeLeft; // timeleft on engine's clock\r
- int mps, timeControl, inc, timePerMove; // time-control parameters, to be used by Search\r
- int maxDepth; // used by search\r
- MOVE move, ponderMove;\r
- int i, score;\r
- char inBuf[8000], command[80];\r
+ MOVE move;\r
+ int i, score, curVarNr;\r
\r
Init(V_CHU); // Chu\r
+ seed = GetTickCount(); moveNr = 0; // initialize random\r
\r
while(1) { // infinite loop\r
\r
fflush(stdout); // make sure everything is printed before we do something that might take time\r
+ *inBuf = 0; if(moveNr >= 20) randomize = OFF;\r
+//if(moveNr >20) printf("resign\n");\r
\r
- if(stm == engineSide) { // if it is the engine's turn to move, set it thinking, and let it move\r
- \r
- score = SearchBestMove(stm, timeLeft, mps, timeControl, inc, timePerMove, &move, &ponderMove);\r
-\r
+#ifdef HASH\r
+ if(hashMask)\r
+#endif\r
+ if(listEnd == 0) ListMoves(); // always maintain a list of legal moves in root position\r
+ abortFlag = -(ponder && WHITE+BLACK-stm == engineSide && moveNr); // pondering and opponent on move\r
+ if(stm == engineSide || abortFlag && ponderMove) { // if it is the engine's turn to move, set it thinking, and let it move\r
+printf("# start search: stm=%d engine=%d (flag=%d)\n", stm, engineSide, abortFlag);\r
+ if(abortFlag) {\r
+ stm = MakeMove2(stm, ponderMove); // for pondering, play speculative move\r
+ gameMove[moveNr++] = ponderMove; // remember in game\r
+ sprintf(ponderMoveText, "%s\n", MoveToText(ponderMove, 0)); // for detecting ponder hits\r
+printf("# ponder move = %s", ponderMoveText);\r
+ } else SetSearchTimes(10*timeLeft); // for thinking, schedule end time\r
+pboard(board);\r
+ score = SearchBestMove(&move, &ponderMove);\r
+ if(abortFlag == 1) { // ponder search was interrupted (and no hit)\r
+ UnMake2(INVALID); moveNr--; stm ^= WHITE; // take ponder move back if we made one\r
+ abortFlag = 0;\r
+ } else\r
if(move == INVALID) { // game apparently ended\r
int kcapt = 0, xstm = stm ^ WHITE, king, k = p[king=royal[xstm]].pos;\r
if( k != ABSENT) { // test if King capture possible\r
PrintResult(stm, score);\r
} else {\r
stm = MakeMove2(stm, move); // assumes MakeMove returns new side to move\r
- gameMove[moveNr++] = move; // remember game\r
+ gameMove[moveNr++] = move; // remember game\r
printf("move %s\n", MoveToText(move, 1));\r
+ listEnd = 0;\r
+ continue; // go check if we should ponder\r
}\r
- }\r
-\r
- fflush(stdout); // make sure everything is printed before we do something that might take time\r
-\r
- // now it is not our turn (anymore)\r
- if(engineSide == ANALYZE) { // in analysis, we always ponder the position\r
- PonderUntilInput(stm);\r
} else\r
- if(engineSide != NONE && ponder == ON && moveNr != 0) { // ponder while waiting for input\r
- if(ponderMove == INVALID) { // if we have no move to ponder on, ponder the position\r
- PonderUntilInput(stm);\r
- } else {\r
- int newStm = MakeMove2(stm, ponderMove);\r
- PonderUntilInput(newStm);\r
- UnMake2(ponderMove);\r
- }\r
+ if(engineSide == ANALYZE || abortFlag) { // in analysis, we always ponder the position\r
+ Move dummy;\r
+ *ponderMoveText = 0; // forces miss on any move\r
+ abortFlag = -1; // set pondering\r
+ SearchBestMove(&dummy, &dummy);\r
+ abortFlag = 0; //\r
}\r
\r
- noPonder:\r
- // wait for input, and read it until we have collected a complete line\r
- for(i = 0; (inBuf[i] = getchar()) != '\n'; i++);\r
- inBuf[i+1] = 0;\r
-pboard(board);\r
-pmoves(retFirst, retMSP);\r
-\r
- // extract the first word\r
- sscanf(inBuf, "%s", command);\r
-printf("in: %s\n", command);\r
+ fflush(stdout); // make sure everything is printed before we do something that might take time\r
+ if(!*inBuf) GetLine(1); // takes care of time and otim commands\r
\r
// recognize the command,and execute it\r
if(!strcmp(command, "quit")) { break; } // breaks out of infinite loop\r
if(!strcmp(command, "force")) { engineSide = NONE; continue; }\r
if(!strcmp(command, "analyze")) { engineSide = ANALYZE; continue; }\r
if(!strcmp(command, "exit")) { engineSide = NONE; continue; }\r
- if(!strcmp(command, "otim")) { goto noPonder; } // do not start pondering after receiving time commands, as move will follow immediately\r
- if(!strcmp(command, "time")) { sscanf(inBuf, "time %d", &timeLeft); goto noPonder; }\r
if(!strcmp(command, "level")) {\r
int min, sec=0;\r
sscanf(inBuf, "level %d %d %d", &mps, &min, &inc) == 3 || // if this does not work, it must be min:sec format\r
}\r
if(!strcmp(command, "protover")){\r
printf("feature ping=1 setboard=1 colors=0 usermove=1 memory=1 debug=1 sigint=0 sigterm=0\n");\r
- printf("feature variants=\"normal,chu,dai,tenjiku,12x12+0_fairy,9x9+0_shogi\"\n");\r
+ printf("feature variants=\"normal,shatranj,makruk,chu,dai,tenjiku,12x12+0_fairy,9x9+0_shogi\"\n");\r
printf("feature myname=\"HaChu " VERSION "\" highlight=1\n");\r
printf("feature option=\"Resign -check 0\"\n"); // example of an engine-defined option\r
printf("feature option=\"Contempt -spin 0 -200 200\"\n"); // and another one\r
+ printf("feature option=\"Tsume -combo no /// White Mates /// Black mates\"\n");\r
printf("feature done=1\n");\r
continue;\r
}\r
if(!strcmp(command, "option")) { // setting of engine-define option; find out which\r
if(sscanf(inBuf+7, "Resign=%d", &resign) == 1) continue;\r
if(sscanf(inBuf+7, "Contempt=%d", &contemptFactor) == 1) continue;\r
- continue;\r
- }\r
- if(!strcmp(command, "variant")) {\r
- for(i=0; i<5; i++) {\r
- sscanf(inBuf+8, "%s", command);\r
- if(!strcmp(variants[i].name, command)) {\r
-printf("var %d\n",i);\r
- Init(i); stm = Setup2(NULL); break;\r
- }\r
+ if(sscanf(inBuf+7, "Tsume=%s", command) == 1) {\r
+ if(!strcmp(command, "no")) tsume = 0; else\r
+ if(!strcmp(command, "White")) tsume = 1; else\r
+ if(!strcmp(command, "Black")) tsume = 2;\r
+ continue;\r
}\r
continue;\r
}\r
if(!strcmp(command, "memory")) { SetMemorySize(atoi(inBuf+7)); continue; }\r
if(!strcmp(command, "ping")) { printf("pong%s", inBuf+4); continue; }\r
// if(!strcmp(command, "")) { sscanf(inBuf, " %d", &); continue; }\r
- if(!strcmp(command, "new")) {\r
- engineSide = BLACK; Init(V_CHESS); stm = Setup2(DEFAULT_FEN); maxDepth = MAXPLY; randomize = OFF; comp = 0;\r
- continue;\r
- }\r
- if(!strcmp(command, "setboard")){ engineSide = NONE; stm = Setup2(inBuf+9); continue; }\r
if(!strcmp(command, "easy")) { ponder = OFF; continue; }\r
if(!strcmp(command, "hard")) { ponder = ON; continue; }\r
- if(!strcmp(command, "undo")) { stm = TakeBack(1); continue; }\r
- if(!strcmp(command, "remove")) { stm = TakeBack(2); continue; }\r
if(!strcmp(command, "go")) { engineSide = stm; continue; }\r
if(!strcmp(command, "post")) { postThinking = ON; continue; }\r
if(!strcmp(command, "nopost")) { postThinking = OFF;continue; }\r
if(!strcmp(command, "random")) { randomize = ON; continue; }\r
if(!strcmp(command, "hint")) { if(ponderMove != INVALID) printf("Hint: %s\n", MoveToText(ponderMove, 0)); continue; }\r
- if(!strcmp(command, "lift")) { Highlight(inBuf+5); continue; }\r
- if(!strcmp(command, "put")) { ReadSquare(inBuf+4, &lastPut); continue; }\r
if(!strcmp(command, "book")) { continue; }\r
// non-standard commands\r
if(!strcmp(command, "p")) { pboard(board); continue; }\r
if(!strcmp(command, "accepted")){ continue; }\r
if(!strcmp(command, "rejected")){ continue; }\r
if(!strcmp(command, "result")) { continue; }\r
- if(!strcmp(command, "hover")) { continue; }\r
+ if(!strcmp(command, "hover")) { continue; }\r
if(!strcmp(command, "")) { continue; }\r
if(!strcmp(command, "usermove")){\r
int move = ParseMove(inBuf+9);\r
+pboard(board);\r
if(move == INVALID) {\r
if(reason) printf("Illegal move {%s}\n", reason); else printf("%s\n", reason="Illegal move");\r
if(comp) PrintResult(stm, -INF); // against computer: claim\r
} else {\r
stm = MakeMove2(stm, move);\r
- ponderMove = INVALID;\r
+ ponderMove = INVALID; listEnd = 0;\r
gameMove[moveNr++] = move; // remember game\r
}\r
continue;\r
}\r
+ ponderMove = INVALID; // the following commands change the position, invalidating ponder move\r
+ listEnd = 0;\r
+ if(!strcmp(command, "new")) {\r
+ engineSide = BLACK; Init(V_CHESS); stm = Setup2(NULL); maxDepth = MAXPLY; randomize = OFF; curVarNr = comp = 0;\r
+ continue;\r
+ }\r
+ if(!strcmp(command, "variant")) {\r
+ for(i=0; i<7; i++) {\r
+ sscanf(inBuf+8, "%s", command);\r
+ if(!strcmp(variants[i].name, command)) {\r
+ Init(curVarNr = i); stm = Setup2(NULL); break;\r
+ }\r
+ }\r
+ continue;\r
+ }\r
+ if(!strcmp(command, "setboard")){ engineSide = NONE; Init(curVarNr); stm = Setup2(inBuf+9); continue; }\r
+ if(!strcmp(command, "undo")) { stm = TakeBack(1); continue; }\r
+ if(!strcmp(command, "remove")) { stm = TakeBack(2); continue; }\r
printf("Error: unknown command\n");\r
}\r
}\r
projects / hachu.git / blobdiff