def generate_puzzle(iterations):
solution = SudokuBoard()
solution.build()
playable = solution.clone()
difficult_coefficient = 1
for _ in range(iterations):
new_playable = playable.clone()
row_num, column_num = random.randrange(9), random.randrange(9)
while new_playable.is_cell_empty(row_num, column_num):
row_num, column_num = random.randrange(9), random.randrange(9)
new_playable.clear_cell(row_num, column_num)
solver = SudokuSolver(new_playable)
try:
solver.solve()
playable = new_playable
difficult_coefficient = solver.difficult_coefficient
except:
continue
difficult_level = None
if difficult_coefficient < DifficultLevel.VERY_EASY.value:
difficult_level = DifficultLevel.VERY_EASY
elif difficult_coefficient < DifficultLevel.EASY.value:
difficult_level = DifficultLevel.EASY
elif difficult_coefficient < DifficultLevel.MEDIUM.value:
difficult_level = DifficultLevel.MEDIUM
elif difficult_coefficient < DifficultLevel.HARD.value:
difficult_level = DifficultLevel.HARD
elif difficult_coefficient < DifficultLevel.VERY_HARD.value:
difficult_level = DifficultLevel.VERY_HARD
elif difficult_coefficient < DifficultLevel.MASTER.value:
difficult_level = DifficultLevel.MASTER
return SudokuGame(playable, solution, difficult_level,
difficult_coefficient)
