I was astonished to see GNU Backgammon assess its own cube decision as
"very bad" (> 0.16 equity loss). I am using different settings for
evaluation (during the game) and analysis (after the game), but cannot remember a discrepancy this large. There is also a pronounced odd/even
effect with respect to the plies.
The score (after 5 games) is: gnubg 8, axel 6 (match to 11 points)
Move number 52: gnubg on roll, cube decision?
GNU Backgammon Position ID: 0DmAnUFtM8YhAA
Match ID : MAFgAYAAMAAE
+-1--2--3--4--5--6-------7--8--9-10-11-12-+ O: gnubg
| O O O O X O | | X X O O | 8 points
| O O O X O | | X X O O | On roll
| | | X O |
| | | |
| | | |
| |BAR| |^ 11 point match (Cube: 1)
| | | |
| | | |
| X | | X |
| X | | X |
| X X | X | X O | 6 points
+24-23-22-21-20-19------18-17-16-15-14-13-+ X: axel
Pip counts: O 101, X 200
I took ("When no clue, take, you might learn something"). What are your thoughts (about the position and suitable rollout settings)?
Best regards
Axel
I was astonished to see GNU Backgammon assess its
own cube decision as "very bad" (> 0.16 equity loss)....
GNU Backgammon Position ID: 0DmAnUFtM8YhAA
Match ID : MAFgAYAAMAAE
I took ..... What are your thoughts (about the position and
suitable rollout settings)?
I was astonished to see GNU Backgammon assess its own cube decision as
"very bad" (> 0.16 equity loss). I am using different settings for
evaluation (during the game) and analysis (after the game), but cannot remember a discrepancy this large. There is also a pronounced odd/even
effect with respect to the plies.
in the past I had caught and posted many examples of Gnubg's
making "PR sacrificing" checker decisions during the game by
looking ahead to upcoming dice rolls.
Tim Chow
On 7/4/2022 5:53 PM, MK wrote:
in the past I had caught and posted many examples of
Gnubg's making "PR sacrificing" checker decisions
during the game by looking ahead to upcoming dice rolls.
You still believe this nonsense?
Even by your standards, this is nuts. How do you explain
the fact that even when you change the dice seed and
play from this position, GNU makes exactly the same
decisions every time?
On July 7, 2022 at 7:17:27 PM UTC-6, Tim Chow wrote:[...]
On 7/4/2022 5:53 PM, MK wrote:
in the past I had caught and posted many examples of
Gnubg's making "PR sacrificing" checker decisions
during the game by looking ahead to upcoming dice rolls.
You still believe this nonsense?
My comment was meant to be a semi-serious, semi-snide
explanation, expecting that nobody else would ridicule
themselves offering explanations.
On 7/19/2022 7:25 AM, MK wrote:
My comment was meant to be a semi-serious, semi-
snide explanation, expecting that nobody else would
ridicule themselves offering explanations.
Ah, so your answer is no. Some vestige of sanity still
remains in that brain of yours, fighting to get out.
This is the sort of position that GNU and XG still
have some trouble with.
Even these settings were yielding pretty high variance,
but at least the final result is in line with what I would
expect from general principles (i.e., ND/T).
.....
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