1 files changed, 6 insertions, 4 deletions

diff --git a/src/solvers/h48/gendata_h48.h b/src/solvers/h48/gendata_h48.h
index 2d222c9..c421c27 100644
--- a/src/solvers/h48/gendata_h48.h
+++ b/src/solvers/h48/gendata_h48.h
@@ -367,7 +367,7 @@ gendata_h48k2_return_size:
 _static void
 gendata_h48k2_dfs(h48k2_dfs_arg_t *arg)
 {
-        uint8_t nmoves;
+        uint8_t nmoves, oldval, newval;
         uint64_t val;
         int64_t coord, fullcoord;
         h48k2_dfs_arg_t nextarg;
@@ -378,9 +378,11 @@ gendata_h48k2_dfs(h48k2_dfs_arg_t *arg)
 
         val = h48map_value(arg->shortcubes, fullcoord);
 
-        if (arg->depth >= arg->base && arg->depth <= arg->base + 2)
-                set_esep_pval(
-                    arg->h48data, coord, arg->k, arg->depth - arg->base);
+        if (arg->depth >= arg->base && arg->depth <= arg->base + 2) {
+                oldval = get_esep_pval(arg->h48data, coord, arg->k);
+                newval = _min(oldval, arg->depth - arg->base);
+                set_esep_pval(arg->h48data, coord, arg->k, newval);
+        }
 
         if ((val < arg->shortdepth) ||
             (arg->depth > arg->shortdepth && val != MAP_UNSET) ||