-#ifdef PREOPENED
- int x = random_upto(rs, params->w);
- int y = random_upto(rs, params->h);
- char *grid, *desc;
-
- grid = new_mine_layout(params->w, params->h, params->n,
- x, y, params->unique, rs);
-#else
- char *rsdesc, *desc;
+ if (!interactive) {
+ /*
+ * For batch-generated grids, pre-open one square.
+ */
+ int x = random_upto(rs, params->w);
+ int y = random_upto(rs, params->h);
+ char *grid, *desc;
+
+ grid = new_mine_layout(params->w, params->h, params->n,
+ x, y, params->unique, rs, &desc);
+ sfree(grid);
+ return desc;
+ } else {
+ char *rsdesc, *desc;