dice:: dont_work in pure heptagonal and in 3D geometries

landlock.cpp

@@ -710,6 +710,12 @@ EX land_validity_t& land_validity(eLand l) {
 
   using namespace lv;
   
+  if(l == laDice && geometry == gNormal && PURE)
+    return dont_work;
+
+  if(l == laDice && WDIM == 3)
+    return dont_work;
+  
   if(old_daily_id < frog_when && among(l, laFrog, laEclectic, laWet))
     return not_implemented;