By Peter Wilson on February 2, 2022 Using six cell little killers for a Sudoku based multi-factor authentication challenge. Previous Note Note: Why superannuation laws are stuffed. 1/1,241 Next Note Note: Hey, how about we never forget and certainly n… Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.