Sorry again I forgot a part of the function in my previous post:
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# add nbQueens (5) new queens on safe squares
def newQueens(nbQueens=5):
solution = [] # one solution
for i in range(len(board)): # 64 squares
if len(solution) < nbQueens: # 5 queens
if board[i][2]==0: # free square
solution.append(i) # a queen
position
queenCtrl(board[i]) # the queen
controls squares
if calcCtrl() == len(board): # whole board controlled
allSolutions.append(solution) # add this solution to the list
resetCtrl() # reset
the controled squares
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