Enko Fix — Queen Of
def place_queens(board, col): if col >= n: result.append(board[:]) return
for i, j in zip(range(row, n, 1), range(col, -1, -1)): if board[i][j] == 1: return False queen of enko fix
for i in range(n): if can_place(board, i, col): board[i][col] = 1 place_queens(board, col + 1) board[i][col] = 0 def place_queens(board, col): if col >= n: result