diff --git a/src/Cluster.test.cpp b/src/Cluster.test.cpp
index 4919b859..26310cde 100644
--- a/src/Cluster.test.cpp
+++ b/src/Cluster.test.cpp
@@ -24,8 +24,9 @@ TEST_CASE("Test sum of Cluster", "[cluster]") {
 using ClusterTypes = std::variant<Cluster<int, 2, 2>, Cluster<int, 3, 3>,
                                   Cluster<int, 5, 5>, Cluster<int, 2, 3>>;
 
-using ClusterTypesLargerThan2x2 =
-    std::variant<Cluster<int, 3, 3>, Cluster<int, 4, 4>, Cluster<int, 5, 5>>;
+using OddClusterTypesAtLeast3x3 =
+    std::variant<Cluster<int, 3, 3>, Cluster<int, 3, 5>, Cluster<int, 5, 3>,
+                 Cluster<int, 5, 5>>;
 
 TEST_CASE("Test reduce to 2x2 Cluster", "[cluster]") {
     auto [cluster, expected_reduced_cluster] = GENERATE(
@@ -68,14 +69,18 @@ TEST_CASE("Test reduce to 2x2 Cluster", "[cluster]") {
 
 TEST_CASE("Test reduce to 3x3 Cluster", "[cluster]") {
     auto [cluster, expected_reduced_cluster] = GENERATE(
-        std::make_tuple(ClusterTypesLargerThan2x2{Cluster<int, 3, 3>{
+        std::make_tuple(OddClusterTypesAtLeast3x3{Cluster<int, 3, 3>{
                             5, 5, {1, 1, 1, 1, 3, 1, 1, 1, 1}}},
                         Cluster<int, 3, 3>{5, 5, {1, 1, 1, 1, 3, 1, 1, 1, 1}}),
         std::make_tuple(
-            ClusterTypesLargerThan2x2{Cluster<int, 4, 4>{
-                5, 5, {2, 2, 1, 1, 2, 2, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1}}},
-            Cluster<int, 3, 3>{5, 5, {2, 1, 1, 1, 3, 1, 1, 1, 1}}),
-        std::make_tuple(ClusterTypesLargerThan2x2{Cluster<int, 5, 5>{
+            OddClusterTypesAtLeast3x3{Cluster<int, 3, 5>{
+                5, 5, {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}}},
+            Cluster<int, 3, 3>{5, 5, {3, 4, 5, 6, 7, 8, 9, 10, 11}}),
+        std::make_tuple(
+            OddClusterTypesAtLeast3x3{Cluster<int, 5, 3>{
+                5, 5, {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}}},
+            Cluster<int, 3, 3>{5, 5, {1, 2, 3, 6, 7, 8, 11, 12, 13}}),
+        std::make_tuple(OddClusterTypesAtLeast3x3{Cluster<int, 5, 5>{
                             5, 5, {1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 2, 3,
                                    1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1}}},
                         Cluster<int, 3, 3>{5, 5, {2, 1, 1, 2, 3, 1, 2, 1, 1}}));
@@ -89,4 +94,4 @@ TEST_CASE("Test reduce to 3x3 Cluster", "[cluster]") {
     CHECK(std::equal(reduced_cluster.data.begin(),
                      reduced_cluster.data.begin() + 9,
                      expected_reduced_cluster.data.begin()));
-}
\ No newline at end of file
+}