[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

BGonline.org Forums

Rollout + OTB

Posted By: Timothy Chow
Date: Friday, 17 May 2024, at 12:45 p.m.

In Response To: It's all fun and games until your opponent rolls 11 from the bar (Timothy Chow)

I was playing White against XG (3-ply) here. The situation looked pretty grim to me and I passed, but the rollout says it's an easy take.

Incidentally, although I posted this as an unlimited game, the actual score when I played this game was 6-away/6-away. On Blue's previous turn, as you can see below, XG 3-ply opted to play 13/7 instead of 22/16. If XG had played 22/16 then the take/pass decision would have been dramatically different (and the doubling decision would have been borderline too good, according to the rollout).





White is Player 2

score: 0
pip: 167
Unlimited Game
pip: 129
score: 0

Blue is Player 1
XGID=-cBBBBBA----ab-A-cbbAbA--A:0:0:1:00:0:0:0:0:10
Blue on roll, cube action?

Analyzed in Rollout No double Double/Take
  Player Winning Chances: 62.14% (G:29.83% B:3.85%) 61.89% (G:30.05% B:4.10%)
  Opponent Winning Chances: 37.86% (G:9.14% B:0.50%) 38.11% (G:9.27% B:0.51%)
  Cubeless Equities +0.483 +0.963
Cubeful Equities
No double:+0.586 (-0.060)±0.018 (+0.567..+0.604)
Double/Take:+0.645±0.029 (+0.616..+0.674)
Double/Pass:+1.000 (+0.355)
 
Best Cube action: Double / Take
Rollout details
1296 Games rolled with Variance Reduction.
Dice Seed: 271828
Moves: 3-ply, cube decisions: XG Roller
 
Double Decision confidence:100.0%
Take Decision confidence:100.0%
Duration: 8 minutes 11 seconds

eXtreme Gammon Version: 2.19.211.pre-release


Earlier in the game:





White is Player 2

score: 1
pip: 171
7 point match
pip: 123
score: 1

Blue is Player 1
XGID=baBBBBB-----cB-A-cbbAbA---:0:0:1:24:1:1:0:7:10
Blue to play 24

1.3-ply13/7eq: +1.431
Player:
Opponent:
81.97% (G:58.72% B:4.02%)
18.03% (G:1.88% B:0.08%)
2.3-ply22/16eq: +1.430 (-0.001)
Player:
Opponent:
82.83% (G:57.07% B:4.21%)
17.17% (G:1.26% B:0.07%)
3.3-ply22/20 15/11eq: +1.429 (-0.002)
Player:
Opponent:
82.78% (G:57.03% B:4.25%)
17.22% (G:1.30% B:0.05%)
4.3-ply20/16 15/13eq: +1.414 (-0.017)
Player:
Opponent:
82.23% (G:56.55% B:4.38%)
17.77% (G:1.44% B:0.06%)

eXtreme Gammon Version: 2.19.211.pre-release, MET: Kazaross XG2


Cube decision after 22/16 and snake eyes from the bar:





White is Player 2

score: 1
pip: 167
7 point match
pip: 122
score: 1

Blue is Player 1
XGID=-cBBBBB-----cB-AAcb-bb---A:0:0:1:00:1:1:0:7:10
Blue on roll, cube action?

Analyzed in Rollout No double Double/Take
  Player Winning Chances: 74.07% (G:30.40% B:3.45%) 73.32% (G:31.60% B:3.53%)
  Opponent Winning Chances: 25.93% (G:4.23% B:0.22%) 26.68% (G:4.26% B:0.22%)
  Cubeless Equities +0.816 +1.749
Cubeful Equities
No double:+0.984 (-0.016)±0.010 (+0.975..+0.994)
Double/Take:+1.505 (+0.505)±0.021 (+1.484..+1.526)
Double/Pass:+1.000
 
Best Cube action: Double / Pass
Rollout details
1296 Games rolled with Variance Reduction.
Dice Seed: 271828
Moves: 3-ply, cube decisions: XG Roller
 
Double Decision confidence:99.9%
Take Decision confidence:100.0%
Duration: 9 minutes 51 seconds

eXtreme Gammon Version: 2.19.211.pre-release, MET: Kazaross XG2

Messages In This Thread

 

Post Response

Your Name:
Your E-Mail Address:
Subject:
Message:

If necessary, enter your password below:

Password:

 

 

[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

BGonline.org Forums is maintained by Stick with WebBBS 5.12.