4 ms·

Or just (.).\1.\1.\1 for Four (198)

• deleted 13y ago
  [deleted]
• MereInterest 13y ago
  So long as we are going down this route, you can shave off another character with (.)(.\1){3} (199).
• maxerickson 13y ago
  Can chop out one check to save a character: (.)...\1.\1