Wednesday, November 1, 2017

Puzzle 405: Fourtified Sudoku

This is a new sudoku variation.

Rules: Place a digit in each cell, such that every row, column, and every thick outlined 3x3 box contains each digit 1 to 9 exactly once. Numbers outside indicate the sum of exactly 4 digits reachable in a single path through adjacent cells, starting with the cell adjacent to the number. No two paths are allowed to overlap or intersect.


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