I thought it was neat how this helped me understand that IPv4 addresses are represented in a in_addr_t using just 4 bytes.<p><a href="https://memory-spy.wizardzines.com/game.html#example=converting%20an%20IP%20address%20from%20a%20string" rel="nofollow">https://memory-spy.wizardzines.com/game.html#example=convert...</a>