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Jean-Christophe

Joined: 23 Apr 2007
Posts: 92
Location: Belgium

 Posted: Wed May 09, 2007 7:37 pm    Post subject: The generator is unrelated to the logicals solvers / techniques. In brief it works as follow: 1. It fills in a valid grid at random 2. It chooses givens and checks for unique solution, adding more givens until it gives a unique solution 3. It minimize the givens by removing each given which is not required to get a unique solution The generator uses the recursive solver to check for unique solution. It does not use any logicals solvers / techniques. The number of guesses displayed may give an idea of the difficulty. If it reports 0 guess then, for sure, the grid can be solved using only naked & hidden singles. If it reports several guesses, it will require some other technique. But the number of guesses do not necessarilly relate to the difficulty. A grid with one guess could be a real though one, whereas one with 10 guesses could well be solved using only "simple" techniques like locked candidates, naked & hidden subsets... So if you want to check how hard it is to solve for a human beeing, you should try to solve it with the logicals solvers / techniques and look at the stats. Kind regards,
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