[Haskell-cafe] Source of 16x16 Sudokus?

[Murray Gross]

Folks:

For research on the behavior of parallel Haskell, does anyone know of a 
source for graded (easy through evil) 16x16 Sudoku puzzles? Our hardware 
runs too fast for us to get meaningful timings on 9x9's. I suppose we 
could insert time wasters, but I think that would also distort the results 
. . . .

Thanks in advance,

Murray Gross
Brooklyn College