diff --git a/SQCSim2021/define.h b/SQCSim2021/define.h
index d12d984..1bd66b8 100644
--- a/SQCSim2021/define.h
+++ b/SQCSim2021/define.h
@@ -21,6 +21,7 @@
 
 #define FRAMES_RENDER_CHUNKS 2
 #define FRAMES_UPDATE_CHUNKS 2
+#define FRAMES_DELETE_CHUNKS 2
 
 #define VIEW_DISTANCE 512
 #define MAX_SELECTION_DISTANCE 5
diff --git a/SQCSim2021/media/chunks/26_85.chunk b/SQCSim2021/media/chunks/26_85.chunk
new file mode 100644
index 0000000..280bcc0
Binary files /dev/null and b/SQCSim2021/media/chunks/26_85.chunk differ
diff --git a/SQCSim2021/world.cpp b/SQCSim2021/world.cpp
index bc22409..e77cdc4 100644
--- a/SQCSim2021/world.cpp
+++ b/SQCSim2021/world.cpp
@@ -79,3 +79,21 @@ void World::TransposeWorld(Player& player) {
     player.Transpose(x, y);
 }
 
+void World::CleanUpWorld(int& frames) {
+    if (!m_tbDeleted.empty() && !frames) {
+        m_tbDeleted.pop_back();
+        frames = FRAMES_DELETE_CHUNKS;
+    }
+}
+
+Chunk* World::RetrieveChunk(int x, int y) {
+    for (int index = 0; index < m_tbDeleted.size(); ++index) {
+        int cx, cy;
+        m_tbDeleted.at(index)->GetPosition(cx, cy);
+
+        if (cx == x && cy == y) 
+            return std::move(m_tbDeleted.at(index));
+    }
+
+    return nullptr;
+}
diff --git a/SQCSim2021/world.h b/SQCSim2021/world.h
index 6d9c3c5..a90e08c 100644
--- a/SQCSim2021/world.h
+++ b/SQCSim2021/world.h
@@ -27,11 +27,14 @@ class World {
         BlockType BlockAt(const Vector3f& pos, BlockType defaultBlockType = BTYPE_AIR) const;
 
 		void TransposeWorld(Player& player);
+		void CleanUpWorld(int& frames);
+		Chunk* RetrieveChunk(int x, int y);
+
 private:
 	Array2d<Chunk*> m_chunks = Array2d<Chunk*>(WORLD_SIZE_X, WORLD_SIZE_Y);
 	std::vector<Chunk*> m_tbDeleted;
 
-	int m_center[2] = {INT16_MAX / 2, INT16_MAX / 2};
+	int m_center[2] = {INT16_MAX / 2 - WORLD_SIZE_X / 2, INT16_MAX / 2 - WORLD_SIZE_Y / 2};
 };
 #endif // WORLD_H__