diff --git a/day6/day6.py b/day6/day6.py
new file mode 100644
index 0000000000000000000000000000000000000000..00b79ea5e134b767f652478c0d9471dbc8965aef
--- /dev/null
+++ b/day6/day6.py
@@ -0,0 +1,18 @@
+# Day 6 - Part 1
+def marker_end_position(task):
+    with open('input.dat') as f:
+        data = f.read()
+        distinct_characters = 0
+        if task == "part1":
+            distinct_characters = 4
+        elif task == "part2":
+            distinct_characters = 14
+        for i in range(distinct_characters, len(data)):
+            has_repeated_chars = len(set(data[i-distinct_characters:i])) != len(data[i-distinct_characters:i])
+            if not has_repeated_chars:
+                print(i)
+                break
+
+
+if __name__ == '__main__':
+    marker_end_position("part2")
diff --git a/day6/input.dat b/day6/input.dat
new file mode 100644
index 0000000000000000000000000000000000000000..018e357ef39c54efa111fe1ed545f7f05036931c
--- /dev/null
+++ b/day6/input.dat
@@ -0,0 +1 @@
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\ No newline at end of file