Here is the incorrect version of my password challenge that I've left in place for those who want to have a crack at an 'easy' case... :) The corrected version is here: https://scratch.mit.edu/projects/68096846/ For technical details (of how it's meant to work) see here: https://scratch.mit.edu/discuss/topic/127598/ If you want clues to its huge weakness, see here: https://scratch.mit.edu/users/ScratchPlex/#comments-12783062