diff --git a/Week03/pyramid_buse_demirbas.py b/Week03/pyramid_buse_demirbas.py
new file mode 100644
index 00000000..df35dd5a
--- /dev/null
+++ b/Week03/pyramid_buse_demirbas.py
@@ -0,0 +1,10 @@
+def calculate_pyramid_height(number_of_blocks):
+    n = 0
+    height = 0
+    while True:
+        block = (n * (n + 1)) // 2
+        if block > number_of_blocks:
+            break
+        height = n
+        n += 1
+    return height