Solution to Puzzle no 253

Here is my original version of the solution:

..and here is another version created by Christian Grailach a member of my Sudoku Puzzles Facebook group:

Sudoku Puzzle no 253 (Diabolical)

This Sudoku puzzle is around the middle of the diabolical category. You will need a variety of techniques to solve it:

 

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Solution to Puzzle no 252

Sudoku Puzzle no 252 (Moderate)

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Solution to Puzzle no 251

Sudoku Puzzle no 251 (Tough)

This Sudoku is roughly in the middle of the tough category:

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Solution to Puzzle no 250

Sudoku Puzzle no 250 (Moderate)

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Solution to Puzzle no 249

Sudoku Puzzle no 249 (Diabolical)

This Sudoku is at the lower end of the diabolical category. It has 4 tough positions and 2 diabolical ones:

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Solution to Puzzle no 248

Sudoku Puzzle no 248 (Easy)

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Solution to Puzzle no 247

Sudoku Puzzle no 247 (Tough)

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Solution to Puzzle no 246

Sudoku Puzzle no 246 (Moderate)

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Solution to Puzzle no 245

Sudoku Puzzle no 245 (Extreme)

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Solution to Puzzle no 244

Sudoku Puzzle no 244 (Easy)

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Solution to Puzzle no 243

Sudoku Puzzle no 243 (Diabolical)

This Sudoku puzzle is towards the lower end of the diabolical category. To solve it, you will need to use tough techniques 7 times and a diabolical technique once:

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Solution to Puzzle no 242

Sudoku Puzzle no 242 (Moderate)

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Solution to Puzzle no 241

Sudoku Puzzle no 241 (Extreme)

Orlando Chicconi has created his own free Sudoku app for the Android O/S. He joined my Sudoku Puzzles group on Facebook recently and published the extreme puzzle below. If you enjoy it and want some more, you can download his app here

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Solution to Puzzle no 240

Sudoku Puzzle no 240 (Easy)

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Solution to Sudoku no 239

Here is my original version of the solution:

...and here is another version from Christian Grailach, a member of the Sudoku Puzzles Facebook group:

Sudoku no 239 (Diabolical)

Sudoku grader and solver

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Solution to Puzzle no 238

Sudoku Puzzle no 238 (Moderate)

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Solution to Puzzle no 237

Sudoku Puzzle no 237 (Tough)

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Solution to Puzzle no 236

Sudoku Puzzle no 236 (Tough)

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Solution to Puzzle no 235

Sudoku Puzzle no 235 (Easy)

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