existe = [[],[],[]]

decompo = [[grille[l][c][0],grille[l][c][1]],[grille[l][c][1],grille[l][c][2]],[grille[l][c][0],grille[l][c][2]]]

for k in range(9):

    if not grilleFinie[l][k] and k != c and (grille[l][k] == grille[l][c] or grille[l][k] in decompo):

        existe[0].append(grille[l][k])

    if not grilleFinie[k][c] and k != l and (grille[k][c] == grille[l][c] or grille[k][c] in decompo):

        existe[1].append(grille[k][c])

for i in lc:

    for j in cc:

        if not grilleFinie[i][j] and (i,j) != (l,c) and (grille[i][j] == grille[l][c] or grille[i][j] in decompo):

            existe[2].append(grille[i][j])