Re: [Bug-gnubg] checking cubeful or not makes a difference when it shouldn't

[Christian Anthon]

It sounds strange, but please provide a __minimal__ example of the
problem. Including position and match id's and the settings you
change.

Note that even though it is an initial position a specific player is
on roll. So even if you set expert to play against expert you would
expect to see a resulting equity different from 0.

Christian.

On 7/11/07, bob koca <address@hidden> wrote:
>    I rolled out a one point match using player 0 as advanced and player 1 as
> expert.
>  I had the advanced player on turn and used the rollout as initial position
> option.
>  In one rollout I checked cubeful under general settings and the other one I
> didn't. I
>  was expecting the rollouts to be exactly the same since there are no cube
> considerations to be made in a one point match. However they were not. Even
> more perplexing is that the difference was definitely statistically
> significant.
>  With the cubeful box checked off the advanced player had .472404 wins with
> std error of .001281.
>  With the cubeful box checked on the advanced player won .458272 with SE of
> .001268
>
>    Other settings that I had checked were
>  i) to truncate cubeless at exact bearoff database
>  ii) variance reduction
>  iii) use quasi random dice
>  iv) rollout as initial position
>  v) cube decisions use same settings as checker play
>
>    Is it a bug that the results are not the same? What should I use to see
> correctly
>  how often advanced would beat expert in one point match?
>
>  thanks for assistance, Bob Koca
>
>
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