On Mon, Oct 19, 2020 at 3:10 PM Aaron Tikuisis <[email protected]>
wrote:
> That is interesting, I did not realize that gnubg misplays race positions
> much. What are some examples?
>
Here is a position I posted a few weeks ago.
GNU Backgammon Position ID: 960BAMCw+0MAAA
Match ID : cAkAAAAAAAAA
+13-14-15-16-17-18------19-20-21-22-23-24-+ O: gnubg
| | | O O O O O | O 0 points
| | | O O O O | O
| | | O O |
| | | O |
| | | O |
v| |BAR| | (Cube: 1)
| 7 | | |
| X | | |
| X | | X |
| X | | X X X | On roll
| X X | | X X X | 0 points
+12-11-10--9--8--7-------6--5--4--3--2--1-+ X: oystein
Money game and X to play. Try several rolls, like 52, 31 and 53 and... at
0-ply. What's the best move? 52: 6/1 6/4?
Of course, the evaluator reports 0.0 win, but since the gammons are
incorrectly evaluated by the neural network, it makes ridiculous moves.
It looks like this is a common pattern in positions which are "skewed".
-Øystein
