Was doing a status moves only challenge in Pokémon Blue and trying to catch a wild Pidgey or Pidgeotto. They kept chasing me away with Whirlwind, so I thought I would try to mitigate that by putting them to sleep and using Flash. However, even after hitting them with Flash 6 times, they seem to always hit Whirlwind. I have not seen them miss even once. Is Whirlwind not affected by Flash?