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  • secco
  • 12:40 15.09.2015
  • English
  • 0.00010001 BTC

Why are sudoku puzzles symmetric?

I noticed that sudoku puzzles are always symmetric. Is there a reason for that?

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2 Answers

  • hermesesus
  • 13:34 15.09.2015
  • Correct

In fact, there are "unsymmetrical" sudoku puzzles. You can generate random sudoku puzzles online here: You will see that random generated grids are not "symmetric". The symmetry is a choice of the puzzle conceptor!

  • kashroy
  • 15:55 15.09.2015

Most sudoku puzzles that you see - although not all - contain symmetry. Sepcifically, they tend to contain rotational symmetry such that if the puzzle is rotated 180 degrees it looks the same.

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