EXPERIMENT 5:

This is not really a cube strategy experiment but was done to contrast the cost
of opponent's owning the cube against the advantage gained by winning the
opening roll in cubeful games.

In this experiment, if the mutant wins the opening roll, the cube value is set to
2 owned by the bot and the bot auto-plays the rest of the game at 2-ply.

After 20,000 cubeful games, bot won 32,654 (53.26%) and mutant won 28,656
(46.74%) points, resulting in 3,998 less points, i.e. -0.1999 ppg, for the mutant.

Results for number of games were 10,618 (53.09%) won by the bot and 9,382
(46.91%) won by the mutant, (with a 6.18% difference).

Clearly, the value of owning the cube outweighed the advantage gained from
winning the opening roll, both in terms of points and games won/lost, at least
when the bot played at 2-ply against itself.

What we can't tell from this experiment is whether the mutant lost by as much
as what would be predicted based on the intentionally caused cube error. This
can be a topic to debate in gamblegammon forums.

You may download the related files, especially the game and session logs, if you
want to tabulate more detailed stats in order to do more extensive analyses.