Edge Difference Sudoku (Fun With Sudoku #123)

Welcome to a puzzle that was born from a happy accident! This Edge Difference Sudoku is a unique variant that I created by accident while trying to make a Difference Sudoku. I misinterpreted the rules, but the result was so interesting that I decided to create more puzzles of this type. The puzzle uses a classic 9x9 grid, but with an additional layer of logic that comes from clues placed outside the grid. The core idea is that these external clues provide information about the difference between the digits at the edges of the corresponding row or column, creating a fresh and engaging challenge.

This puzzle is a great example of how a simple mistake can lead to a creative new variant. I enjoyed the logic so much that I've created several more puzzles of this type. It's perfect for a focused session where you can explore the intricate interplay between the edge clues and the classic Sudoku logic. Enjoy this well-crafted and thought-provoking puzzle.