from SudokuBoard import SudokuBoard
def cross(A, B):
"Cross product of elements in A and elements in B."
return [a+b for a in A for b in B]
if __name__ == "__main__":
easy = SudokuBoard("..3.2.6..9..3.5..1..18.64....81.29..7.......8..67.82....26.95..8..2.3..9..5.1.3..")
print "This is an easy puzzle ..."
print easy.pretty_initial_state()
easy.solve()
print easy.pretty()
print "done"
hard = SudokuBoard("4.....8.5.3..........7......2.....6.....8.4......1.......6.3.7.5..2.....1.4......")
print "This is a very HARD puzzle ..."
print hard.pretty_initial_state()
hard.solve()
print hard.pretty_values()
print "done"
