On Nov 11, 2008, at 10:12 PM, Kaz Kylheku wrote:

> On 2008-11-11, brabuhr / gmail.com <brabuhr / gmail.com> wrote:
>>    64 times
>>        pick a random spot
>>        skip it if it is already a hole
>
> Is it really so difficult to make a sequence of integers from 0 to  
> 80, scramble
> its order (e.g. using the Knuth random exchange method) and then take
> successive elements from this sequence as the locations on the Sudoku
> board?
>

That alone does not a Sudoku make. Unless you've got some other  
criteria in mind that you don't mention, that's just a 9x9 grid of  
random numbers.