Tuesday, 14 May 2019

Sudoku no 397 (Diabolical)

According to SudokuWiki this diabolical sudoku puzzle has a grade of Very Hard / 742.

If you manage to complete it, please add a comment below saying how long it took you. If you also include your email address or Facebook name I will send you a similar puzzle which nobody else has ever seen.

I use the number of comments received to gauge the popularity of each puzzle type. This helps me to decide what to post in future.

See answer

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