if not grilleFinie[l][c]:

    if not ites:

        grille[l][c] = [1,2,3,4,5,6,7,8,9]

    for k in range(9):

        if grilleFinie[l][k] and grille[l][k] in grille[l][c] and k != c:

            grille[l][c].remove(grille[l][k])

        if grilleFinie[k][c] and grille[k][c] in grille[l][c] and k != l:

            grille[l][c].remove(grille[k][c])

    for i in lc:

        for j in cc:

            if grilleFinie[i][j] and grille[i][j] in grille[l][c] and (i,j) != (l,c):

                grille[l][c].remove(grille[i][j])

    verifier(l,c)