char *array, fenArray[4000], *reason;\r
int bWidth, bHeight, bsize, zone, currentVariant, chuFlag, tenFlag, chessFlag, repDraws;\r
int stm, xstm, hashKeyH, hashKeyL, framePtr, msp, nonCapts, rootEval, retMSP, retFirst, retDep, pvPtr, level, cnt50, mobilityScore;\r
-int nodes, startTime, tlim1, tlim2, repCnt, comp;\r
+int nodes, startTime, 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
if(p[i].pos != ABSENT) tb->fireMask |= fireFlags[i-2];\r
}\r
\r
+void TerminationCheck();\r
+\r
#define QSdepth 0\r
\r
int\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 myPV = pvPtr;\r
- int score, bestScore, curEval, iterAlpha;\r
+ int score, bestScore, oldBest, curEval, iterAlpha;\r
Move move, nullMove;\r
UndoInfo tb;\r
#ifdef HASH\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
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
\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
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
int i;\r
for(i=0; i< BSIZE; i++) boardCopy[i] = !!board[i];\r
MapFromScratch(attacks);\r
- postThinking--; repCnt = 0; tlim1 = tlim2 = 1e8; msp = 0;\r
+ postThinking--; repCnt = 0; tlim1 = tlim2 = tlim3 = 1e8; abortFlag = msp = 0;\r
Search(-INF-1, INF+1, 0, 1, sup1 & ~PROMOTE, sup2);\r
postThinking++;\r
listStart = retFirst; listEnd = msp = retMSP;\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
+}\r
+\r
+int\r
+SearchBestMove (MOVE *move, MOVE *ponderMove)\r
+{\r
+ int score;\r
+ startTime = GetTickCount();\r
nodes = 0;\r
MapFromScratch(attacks);\r
retMove = INVALID; repCnt = 0;\r
score = Search(-INF-1, INF+1, rootEval, maxDepth, sup1, sup2);\r
*move = retMove;\r
- *ponderMove = INVALID;\r
+ *ponderMove = pv[1];\r
return score;\r
}\r
\r
+\r
void\r
PonderUntilInput (int stm)\r
{\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
}\r
}\r
\r
+ void\r
+ TerminationCheck()\r
+ {\r
+ if(GetTickCount() - startTime > tlim3) abortFlag = 2;\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
- MOVE move, ponderMove;\r
+ MOVE move;\r
int i, score, curVarNr;\r
- char inBuf[8000], command[80];\r
\r
Init(V_CHU); // Chu\r
\r
\r
if(listEnd == 0) ListMoves(); // always maintain a list of legal moves in root position\r
\r
+ abortFlag = 0;\r
if(stm == engineSide) { // if it is the engine's turn to move, set it thinking, and let it move\r
\r
pboard(board);\r
- score = SearchBestMove(stm, timeLeft, mps, timeControl, inc, timePerMove, &move, &ponderMove);\r
+ score = SearchBestMove(&move, &ponderMove);\r
\r
if(move == INVALID) { // game apparently ended\r
int kcapt = 0, xstm = stm ^ WHITE, king, k = p[king=royal[xstm]].pos;\r
projects / hachu.git / blobdiff