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Bot Battle #100 Rollout - Another One

Posted By: Stick
Date: Wednesday, 10 December 2025, at 9:54 p.m.

In Response To: Bot Battle #100 Rollout (Jason Lee)

So Jason always jacks up his settings to 4 ply/XGR+/Huge instead of the accepted default of 3 ply/XGR. Doing this in a rollout such as this with 10 plays will take some time even with the fastest of personal computers. I like to compare the results of the different settings from time to time. If you compare the rollout below to Jason's original rollout you'll see the have basically the same answer and equities.

You can reference the Depreli study from 2012 of the bot's various settings at this link: Depreli Study 2012

One thing of note with this particular position is that it's borderline too good which means that some of the rollouts will end with DP whereas a human may keep playing on. (or the inverse) So the results are nice to have but need to be taken with that eternal grain of salt.





White is Player 2

score: 2
pip: 177
9 point match
pip: 156
score: 0

Blue is Player 1
XGID=bAa--BBAB-A-cCaA-c-e--A-A-:0:0:1:64:0:2:0:9:10
Blue to play 64

1.Rollout124/14* eq: +1.001
Player:
Opponent:		70.11% (G:31.65% B:2.56%)
29.89% (G:6.33% B:0.38%)		Conf.: ± 0.006 (+0.995...+1.007) - [100.0%]
Duration: 2 minutes 21 seconds
2.Rollout113/9 7/1eq: +0.986 (-0.016)
Player:
Opponent:		68.68% (G:40.69% B:3.79%)
31.32% (G:6.99% B:0.51%)		Conf.: ± 0.006 (+0.979...+0.992) - [0.0%]
Duration: 2 minutes 57 seconds
1 5184 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG Roller

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