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diff --git a/2022/nim/day06/src/main.nim b/2022/nim/day06/src/main.nim
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+++ b/2022/nim/day06/src/main.nim
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+# Day 6: Tuning Trouble
+import std/[os, strutils, sets]
+
+let input = paramStr(1).readFile().strip().split("\n")[0]
+
+iterator slide(input: string, num: int): string =
+  for i in 0 ..< input.len - num:
+    var result: string
+    for j in 0 ..< num:
+      result &= input[i+j]
+    yield result
+
+var i = 4
+for window in input.slide(4):
+  if window.toHashSet.len == 4:
+    break
+  inc i
+echo i
+
+i = 14
+for window in input.slide(14):
+  if window.toHashSet.len == 14:
+    break
+  inc i
+echo i