Solution to the daily sudoku puzzle published on Friday, 31st of December 2021

Last Friday's puzzle solution

Friday, 31st of December 2021

Sudoku solution for puzzle published on Friday, 31st of December 2021
difficult
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Puzzle solutions are made available on the day following their first publish date.

This puzzle was rated difficult.

The black figures were the givens in the puzzle. The valid numbers are highlighted in blue.