Solution to Sudoku no 169

Sudoku no 169 (Easy)

Sudoku grader and solver

See answer

Solution to Sudoku no 168

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

Solution to Sudoku no 167

Sudoku no 167 (Moderate)

Sudoku grader and solver

See answer

Solution to Sudoku no 166

Sudoku no 166 (Diabolical)

I created this puzzle for the Asian Sudoku Championship. It took place on Jeju Island, South Korea at the start of February 2018:

Sudoku grader and solver

See answer

Solution to Sudoku no 165

Sudoku no 165 (Easy)

Sudoku grader and solver

See answer

Solution to Sudoku no 164

Sudoku no 164 (Tough)

I created this puzzle for the Asian Sudoku Championship. It took place on Jeju Island, South Korea at the start of February 2018:

Sudoku grader and solver

See answer

Solution to Sudoku no 163

Sudoku no 163 (Moderate)

I created this puzzle for the Asian Sudoku Championship. It took place on Jeju Island, South Korea at the start of February 2018:

Sudoku grader and solver

See answer

Solution to Sudoku no 162

Sudoku no 162 (Diabolical)

I created this puzzle for the Asian Sudoku Championship. It took place on Jeju Island, South Korea at the start of February 2018:

Solve online

Sudoku grader and solver

See answer

Solution to Sudoku no 161

Sudoku no 161 (Easy)

Play online 

Sudoku grader and solver

See answer

Solution to Sudoku no 160

Sudoku no 160 (Tough)

I created this puzzle for the Asian Sudoku Championship. It took place on Jeju Island, South Korea at the start of February 2018.

The puzzle is at the lower end of the Tough category with one tricky position roughly half way through:

Solve online

Sudoku grader and solver

See answer