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Author Topic: How are Sudokus designed?  (Read 501 times)

Offline P-Kasso2

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How are Sudokus designed?
« on: 16 September, 2017, 09:32:54 AM »
It's staggering when you think about it. Thousands of new Sudokus appear everyday, in thousands of newspapers all round the world. It makes me wonder...how can so many Sudokus be designed so quickly?

Is there, as I suspect, a computer algorhythm that works them all out at the speed of lightning? How does it work? How long does it take? And who invented the algorhythm?

Or maybe I'm completely wrong. In that case, do Sudoku designers all work manually, painstakingly, by trial and error? I wish I knew.

How are all those Sudokus designed?

And, as an afterthought, how many possible combinations of numbers are possible with a 9 x 9 squares Sudoku?
« Last Edit: 16 September, 2017, 09:43:59 AM by P-Kasso2 »
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