fix queen move bug

src/eval.c

@@ -20,14 +20,14 @@ int negamax(game *g, int depth, int alpha, int beta, int color);
 
 move *findBest(move* moves, size_t size, game* g){
   int bestScore = -INF;
-  move *bestMove = moves;
+  move *bestMove = NULL;
   int color = g->whiteToMove ? 1 : -1;
 
   for (int i = 0; i < size; i++) {
     game gg = *g;
     makeMove(&gg, &moves[i]);
     int score = -negamax(&gg, MAX_DEPTH, -INF, INF, -color);
-    if (score > bestScore) {
+    if (score > bestScore || bestScore == -INF) {
       bestScore = score;
       bestMove = &moves[i];
       printf("info score cp %d\n", g->whiteToMove ? bestScore : -bestScore);

src/main.c

@@ -64,6 +64,10 @@ int main() {
       cnt += kingMove(g,(mov+cnt));
       cnt += queenMove(g,(mov+cnt));
       move *m = findBest(mov,cnt,g);
+      if(m == NULL){
+	printf("bestmove 0000\n");
+	continue;
+      }
 
       char *end = "";
       int yTo, xTo, yFrom, xFrom;

src/moves.c

@@ -249,7 +249,7 @@ int queenMove(game *g, move *moves){
   w = g->white.queen;
   b = g->black.queen;
   size += rookScan(g,moves,w,b);
-  size += bishopScan(g,moves,w,b);
+  size += bishopScan(g,(moves+size),w,b);
   return size;
 }