- ➊ Draw single or double straight lines between the circled
- ➋ The letters in a circle indicate how many lines must end
- ➌ Same letters encode same numbers between 1 and 8; different
letters encode different numbers.
- ➍ The lines must run horizontally or vertically and must not
cross or branch off.
- ➎ All circles must be connected to each other; i.e.
it must be possible to travel from any circle to any other circle following the