Here is another fun project. Solve BG for 1 checker vs 1, exactly.
Obviously, the only interesting case is when you have to decide if you want
to hit or not.

On 18 February 2018 at 12:21, Joseph Heled <[email protected]> wrote:

> Since backgammon pieces don't come back from the dead, a system with
> plentiful memory will have a set of nets for one-side-has-1-checker, 
> one-side-has-2-checkers,
> etc/ That will help a lots of those boundary (but relatively rare)
> situations.
>
> Another possible approach in that direction is to have a
> per-remaining-checkers setting for move filters.
>
> -Joseph
>
> On 18 February 2018 at 11:37, Philippe Michel <[email protected]>
> wrote:
>
>> On Sat, Feb 17, 2018 at 02:09:33PM +0100, Øystein Schønning-Johansen
>> wrote:
>>
>> > So.... the conclusion must be that there is something funny with the
>> > movefilters. Don't know what.
>>
>> 0-ply evaluates the resulting positions quite haphazardly and there is
>> only one move with 24/19 if the first eight choices. The wider filter
>> gets three more and these four get the top spots at 2-ply. This is
>> better but there are still a few reasonable 24/19 plays missing.
>>
>> The 0-ply evaluations of the next roll position are probably rather poor
>> as well since the 2-ply equities of these moves are much more dispersed
>> than they should. 3-ply is better and 4-ply seems right, with all the
>> plays breaking the 24 point sensibly in a 0.02 interval.
>>
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>
>
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