Solution to Sudoku no 178

Sudoku no 178 (Tough)

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Solution to Sudoku no 177

Sudoku no 177 (Very Easy)

Erick Middleton is a member of the Sudoku Puzzles Facebook group. He wrote a Perl script, which he used to create the puzzle below:

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Solution to Sudoku no 176

Sudoku no 176 (Diabolical)

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Solution to Sudoku no 175

Sudoku no 175 (Moderate)

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Solution to Sudoku no 174

Sudoku no 174 (Tough)

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Solution to Sudoku no 173

Sudoku no 173 (Easy)

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Solution to Sudoku no 172

Here is my original version of the solution:

...and here is another version from Baby-Rey Zaballero, a member of the Sudoku Puzzles Facebook group:

Sudoku no 172 (Extreme)

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Solution to Sudoku no 171

Sudoku no 171 (Moderate)

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Solution to Sudoku no 170

Sudoku no 170 (Tough)

This is the last of the puzzles which I created for the 2018 Asian Sudoku Championship.
It took place on Jeju Island, South Korea at the start of February.

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