Outside Non-Consecutive Sudoku

I announced this one when I posted my first Outside Sudoku puzzle: it’s a non consecutive Outside Sudoku. Even though it looks like a regular Sudoku puzzle, you must follow one extra rule: two touching numbers must not be consecutive.

Outside Non/Consecutive Sudoku for Monday, January 18, 2010 – Difficulty: THINKER.

Outside Non-Consecutive Sudoku.