The fourth hint for Challenge 10A
The Body in My Library › Forums › Harry’s Meeting Place › The official Challenge 10 tips and hints thread › The fourth hint for Challenge 10A
18th December 2023 at 9:00 am
#92767
Harry
Keymaster
The fourth hint for Challenge 10A
Challenge 9A was a very simple cipher in which the letters in positions 1,3,5, 7, 9 etc were left along and the letters in positions 2,4,6,8,10 … were shifted by the letters to their left. Many of you noted that this is a special case of a Hill cipher, Why not look that up?