Sunday, 11 March 2018

Sudoku no 168 (Tough)

I created this puzzle for the Asian Sudoku Championship, which took place on Jeju Island, South Korea at the start of February 2018. It is probably just below the middle of the Tough category:

Sudoku grader and solver

See answer

6 comments:

  1. I liked the puzzle but I would rate it easy because I solved it in about 12 minutes without using pencil marks.

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  2. Is this a classic sudoku? I am getting 5 solutions on my solver

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    Replies
    1. I have checked it again and it seems OK. If you click on the "See answer" link you will see my solution. If you have a different one, send it to me at international_dba@yahoo.co.uk and I will check it out.

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    2. If u give one additional given digit by adding #9 in cell number r8c5, it will lock r8c6 for #9. This additional #9 will give this puzzle a unique solution. #9 in cll r8c6 gives 4 more solutions. Plese check.

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    3. I haven't received your alternative solution yet. Please send it to me.

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