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Sudoku.py
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Sudoku.py
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from random import randint, shuffle
class SudukoPuzzleMaker:
def __init__(self):
self.board = []
l = list(range(1, 10))
shuffle(l)
self.board.append(l)
self.board += [[0 for _ in range(9)] for _ in range(8)]
def make(self):
find = self.find_empty()
if not find:
return True
else:
r, c = find
tries = set()
while len(tries) != 9:
n = randint(1, 9)
tries.add(n)
if self.possible(n, r, c):
self.board[r][c] = n
if self.make():
pass
self.board[r][c] = 0
def final_step(self):
pos = set()
# of Removed
n = 0
while n <= 30:
i, j = randint(0, 8), randint(0, 8)
if (i, j) not in pos:
pos.add((i, j))
pos.add((j, i))
self.board[i][j] = 0
self.board[j][i] = 0
if (i, j) != (j, i):
n+=2
else:
n+=1
def possible(self, n, r, c):
for i in range(9):
if self.board[r][i] == n and i != c:
return False
if self.board[i][c] == n and i != r:
return False
x = (r // 3) * 3
y = (c // 3) * 3
for i in range(x, x+3):
for j in range(y, y+3):
if self.board[i][j] == n and (i, j) != (r, c):
return False
return True
def find_empty(self):
for i in range(9):
for j in range(9):
if self.board[i][j] == 0:
return (i, j)
return None
# Thank you :)