diff --git a/Isosurfacing_3/examples/Isosurfacing_3/CMakeLists.txt b/Isosurfacing_3/examples/Isosurfacing_3/CMakeLists.txt
index 33a03a4f38a..b4743911278 100644
--- a/Isosurfacing_3/examples/Isosurfacing_3/CMakeLists.txt
+++ b/Isosurfacing_3/examples/Isosurfacing_3/CMakeLists.txt
@@ -41,29 +41,18 @@ if(TARGET CGAL::Eigen3_support)
   create_single_source_cgal_program("contouring_implicit_data.cpp")
   create_single_source_cgal_program("contouring_mesh_offset.cpp")
 
-  # undocumented
-  create_single_source_cgal_program("dual_contouring_octree.cpp")
-  create_single_source_cgal_program("dual_contouring_strategies.cpp")
-  create_single_source_cgal_program("dual_contouring_intersection_oracles.cpp")
-
   target_link_libraries(dual_contouring PRIVATE CGAL::Eigen3_support)
-  target_link_libraries(dual_contouring_octree PRIVATE CGAL::Eigen3_support)
   target_link_libraries(contouring_discrete_data PRIVATE CGAL::Eigen3_support)
   target_link_libraries(contouring_inrimage PRIVATE CGAL::Eigen3_support)
   target_link_libraries(contouring_implicit_data PRIVATE CGAL::Eigen3_support)
   target_link_libraries(contouring_mesh_offset PRIVATE CGAL::Eigen3_support)
-  target_link_libraries(dual_contouring_strategies PRIVATE CGAL::Eigen3_support)
-  target_link_libraries(dual_contouring_intersection_oracles PRIVATE CGAL::Eigen3_support)
 
   if(TARGET CGAL::TBB_support)
     target_link_libraries(dual_contouring PRIVATE CGAL::TBB_support)
-    target_link_libraries(dual_contouring_octree PRIVATE CGAL::TBB_support)
     target_link_libraries(contouring_discrete_data PRIVATE CGAL::TBB_support)
     target_link_libraries(contouring_inrimage PRIVATE CGAL::TBB_support)
     target_link_libraries(contouring_implicit_data PRIVATE CGAL::TBB_support)
     target_link_libraries(contouring_mesh_offset PRIVATE CGAL::TBB_support)
-    target_link_libraries(dual_contouring_strategies PRIVATE CGAL::TBB_support)
-    target_link_libraries(dual_contouring_intersection_oracles PRIVATE CGAL::TBB_support)
   endif()
 else()
   message(STATUS "NOTICE: Some examples use Eigen, and will not be compiled.")
@@ -88,4 +77,4 @@ if(TARGET CGAL::CGAL_ImageIO)
   endif() # Eigen
 else() # ImageIO
   message(STATUS "NOTICE: Some examples need the CGAL_ImageIO library, and will not be compiled.")
-endif()
\ No newline at end of file
+endif()
diff --git a/Isosurfacing_3/test/Isosurfacing_3/CMakeLists.txt b/Isosurfacing_3/test/Isosurfacing_3/CMakeLists.txt
index cb0d23f2747..c367b057d6f 100644
--- a/Isosurfacing_3/test/Isosurfacing_3/CMakeLists.txt
+++ b/Isosurfacing_3/test/Isosurfacing_3/CMakeLists.txt
@@ -23,6 +23,22 @@ if(TARGET CGAL::Eigen3_support)
     target_link_libraries(test_isosurfacing_concepts PRIVATE CGAL::Eigen3_support)
     target_link_libraries(test_dual_contouring PRIVATE CGAL::TBB_support)
   endif()
+
+  #examples to be moved in example when reading to be documented
+  create_single_source_cgal_program("dual_contouring_octree.cpp")
+  create_single_source_cgal_program("dual_contouring_strategies.cpp")
+  create_single_source_cgal_program("dual_contouring_intersection_oracles.cpp")
+
+  target_link_libraries(dual_contouring_octree PRIVATE CGAL::Eigen3_support)
+  target_link_libraries(dual_contouring_strategies PRIVATE CGAL::Eigen3_support)
+  target_link_libraries(dual_contouring_intersection_oracles PRIVATE CGAL::Eigen3_support)
+
+  if(TARGET CGAL::TBB_support)
+    target_link_libraries(dual_contouring_octree PRIVATE CGAL::TBB_support)
+    target_link_libraries(dual_contouring_strategies PRIVATE CGAL::TBB_support)
+    target_link_libraries(dual_contouring_intersection_oracles PRIVATE CGAL::TBB_support)
+  endif()
+
 else()
   message(STATUS "NOTICE: tests require the Eigen library, and will not be compiled.")
 endif()
diff --git a/Isosurfacing_3/examples/Isosurfacing_3/dual_contouring_intersection_oracles.cpp b/Isosurfacing_3/test/Isosurfacing_3/dual_contouring_intersection_oracles.cpp
similarity index 100%
rename from Isosurfacing_3/examples/Isosurfacing_3/dual_contouring_intersection_oracles.cpp
rename to Isosurfacing_3/test/Isosurfacing_3/dual_contouring_intersection_oracles.cpp
diff --git a/Isosurfacing_3/examples/Isosurfacing_3/dual_contouring_octree.cpp b/Isosurfacing_3/test/Isosurfacing_3/dual_contouring_octree.cpp
similarity index 100%
rename from Isosurfacing_3/examples/Isosurfacing_3/dual_contouring_octree.cpp
rename to Isosurfacing_3/test/Isosurfacing_3/dual_contouring_octree.cpp
diff --git a/Isosurfacing_3/examples/Isosurfacing_3/dual_contouring_strategies.cpp b/Isosurfacing_3/test/Isosurfacing_3/dual_contouring_strategies.cpp
similarity index 100%
rename from Isosurfacing_3/examples/Isosurfacing_3/dual_contouring_strategies.cpp
rename to Isosurfacing_3/test/Isosurfacing_3/dual_contouring_strategies.cpp