EXPERIMENT 27:

In this experiment, GnuBG 3-ply checker and 3-ply cube skill, (strong bot),
played 20,000 money games against GnuBG 1-ply checker and 3-ply cube
skill (weak bot).

Strong bot won 24,247 (51.43%) and weak bot won 22,901 (48.57%) of
points, with a total of 47,148 points for both and an average of 2.3574
points per game; strong bot won 10,215 (51.08%) and weak bot won
9,785 (48.93%) of games.

In comparison, in the cubeless version of this experiment strong bot won
13,100 (50.82%) and weak bot won 12,679 (49.18%) of the points, with a
total of 25,779 points and an average of 1.2890 points per game; strong
bot won 10,137 (50.69%) and weak bot won 9,863 (49.32%) of games.

As weak bot won 0.61% less points and 0.39% fewer games, this time we
can see that the weak bot performed worse, even if by a very little, in the
cubeful session than in the cubeless session, as some may have expected.

I will add some conclusion drawing comments here after doing more
experiments along the same lines.