Wednesday, July 29, 2020

Puzzle No 141: Untouchable Mystery Sandwich Sudoku

Here is tricky challenging sudoku.
Rules - Classic Sudoku Rules.
Thanks to Prasanna and Ashish for test solving it.
Online Solving - https://git.io/JJgUJ
Rules:
1) Classic rules apply.
2) Two same digits do not touch each other diagonally.
3) Additionally, the outside number is the sum of the digits between X and Y. X and Y to be found by the solver. X and Y remain the same throughout the grid.

Difficulty: Hard

Puzzle:

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