Rules
Normal Sudoku rules apply.
There are hidden lockout lines in the grid. Each pair of diamonds with the same letter must be connected by a line. Lines can only move orthogonally and cannot branch. Lines cannot cross themselves, other lines, or other diamonds.
Digits on a lockout line cannot be between or equal to the digits on the diamond endpoints. Digits on the endpoints must differ by at least 4.
Example Puzzle
Here is an example puzzle on a 6x6 grid, with endpoints required to differ by at least 2:
Puzzle Links
