Add option 'Floating Byoyomi'

In USI (-s) mode an option 'Floating Byoyomi' will be announced, which
will force the 'suffix' to the 'go' command to specify a byoyomi equal
to a reasonable time to think (timeLeft/40 + inc). This can be used as
a work-around to let engines that ignore the time left and always think
they are playing in byoyomi (a common misery in USI engines) work reasonably
well under incrementalor sudden-death TC. This then removes the need to
specify the suffix on the UCI2WB command line.

diff --git a/UCI2WB.c b/UCI2WB.c
index 632df6e..0b1ba71 100644 (file)
--- a/UCI2WB.c
+++ b/UCI2WB.c
@@ -40,7 +40,7 @@
 #define ANALYZE 3\r
 \r
 char move[2000][10], checkOptions[8192], iniPos[256], hashOpt[20], pause, pondering, suspended, ponder, post, hasHash, c, sc='c', suffix[81], *variants;\r
-int mps, tc, inc, sTime, depth, myTime, hisTime, stm, computer = NONE, memory, oldMem=0, cores, moveNr, lastDepth, lastScore, startTime, debug;\r
+int mps, tc, inc, sTime, depth, myTime, hisTime, stm, computer = NONE, memory, oldMem=0, cores, moveNr, lastDepth, lastScore, startTime, debug, flob;\r
 int statDepth, statScore, statNodes, statTime, currNr, size, collect, nr, sm, inex, on[500], frc;\r
 char currMove[20], moveMap[500][10], /* for analyze mode */ canPonder[20], threadOpt[20];\r
 char board[100];  // XQ board for UCCI\r
@@ -147,6 +147,7 @@ StartSearch(char *ponder)
        DPRINT(    "\n# go%s %stime %d %stime %d", ponder, bTime, black ? myTime : hisTime, wTime, !black ? myTime : hisTime);\r
        if(sTime > 0) { fprintf(toE, " movetime %d", sTime); DPRINT(" movetime %d", sTime); } else\r
        if(mps) { fprintf(toE, " movestogo %d", mps*(nr/(2*mps)+1)-nr/2); DPRINT(" movestogo %d", mps*(nr/(2*mps)+1)-nr/2); }\r
+       if(flob) sprintf(suffix, " byoyomi %d", inc + myTime/40); // for engines running purely on byoyomi\r
        if(inc && !*suffix) { fprintf(toE, " %s %d %s %d", wInc, inc, bInc, inc); DPRINT(" %s %d %s %d", wInc, inc, bInc, inc); }\r
        if(depth > 0) { fprintf(toE, " depth %d", depth); DPRINT(" depth %d", depth); }\r
         if(*suffix) { fprintf(toE, suffix, inc); DPRINT(suffix, inc); }\r
@@ -267,6 +268,7 @@ Engine2GUI()
            } else move[moveNr][0] = 0;\r
            Move4GUI(line+9);\r
            printf("move %s\n", line+9); // send move to GUI\r
+            if(move[moveNr][0]) printf("Hint: %s\n", move[moveNr]);\r
            if(pause) { pause = 0; Sync(WAKEUP); } // release commands that came in during think\r
            if(lastScore == 100001 && iniPos[0] != 'f') { printf("%s {mate}\n", stm == BLACK ? "1-0" : "0-1"); computer = NONE; }\r
        }\r
@@ -439,6 +441,7 @@ GUI2Engine()
        else if(!strcmp(command, "option")) {\r
            char name[80], *p;\r
            if(sscanf(line+7, "UCI2WB debug output=%d", &debug) == 1) ; else\r
+           if(sscanf(line+7, "Floating Byoyomi=%d", &flob) == 1) ; else\r
            if(p = strchr(line, '=')) {\r
                *p++ = 0;\r
                if(strstr(checkOptions, line+7)) sprintf(p, "%s\n", atoi(p) ? "true" : "false");\r
@@ -449,6 +452,7 @@ GUI2Engine()
            if(!variants) variants = sc=='s' ? "shogi,5x5+5_shogi" : VARIANTS;\r
            printf("feature variants=\"%s\" setboard=1 usermove=1 debug=1 ping=1 reuse=0 exclude=1 pause=1 sigint=0 sigterm=0 done=0\n", variants);\r
            printf("feature option=\"UCI2WB debug output -check %d\"\n", debug);\r
+           if(sc == 's') printf("feature option=\"Floating Byoyomi -check %d\"\n", flob);\r
            fprintf(toE, sc == 'x' ? "ucci\n" : "u%ci\n", sc); fflush(toE); // prompt UCI engine for options\r
            Sync(PAUSE); // wait for uciok\r
        }\r