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

BGonline.org Forums

PotD 09-02-26 - Three best plays

Posted By: Nack Ballard
Date: Sunday, 4 October 2026, at 6:00 p.m.

In Response To: Position of the Day 09-02-26 - Rollout (Stick)





White is Player 2

score: 0
pip: 169
Unlimited Game
Jacoby Beaver
pip: 147
score: 0

Blue is Player 1
XGID=-a-b--E-D--BdC---b-cc---A-:0:0:1:66:0:0:3:0:10
Original Position

1.Rollout111/5(2) 8/2(2)eq: +0.276
Player:
Opponent:
55.38% (G:19.03% B:0.66%)
44.62% (G:9.65% B:0.40%)
Conf.: ± 0.004 (+0.272...+0.281) - [68.4%]
Duration: 14 minutes 46 seconds
2.Rollout124/18 13/7(3)eq: +0.275 (-0.002)
Player:
Opponent:
56.16% (G:15.40% B:0.73%)
43.84% (G:10.06% B:0.35%)
Conf.: ± 0.005 (+0.270...+0.279) - [31.6%]
Duration: 16 minutes 23 seconds
3.Rollout213/7(2) 11/5(2)eq: +0.219 (-0.057)
Player:
Opponent:
54.32% (G:17.59% B:0.80%)
45.68% (G:10.30% B:0.40%)
Conf.: ± 0.015 (+0.204...+0.234) - [0.0%]
Duration: 58.9 seconds
1 15552 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG Roller

2 1296 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG Roller

Above is Stick's rollout of the original position. As the difference between the top two plays is only .002, I sought a bit of separation between them (which turns out to be .054).

Below are three variants, each having a different best play.

Nack





White is Player 2

score: 0
pip: 162
Unlimited Game
Jacoby Beaver
pip: 147
score: 0

Blue is Player 1
XGID=-a-b--E-D--BcC---b-dc---A-:0:0:1:66:0:0:3:0:10
Variant 1: A White 13pt spare is on her 6pt

1.Rollout124/18 13/7(3)eq: +0.313
Player:
Opponent:
57.94% (G:14.22% B:0.71%)
42.06% (G:10.79% B:0.33%)
Conf.: ± 0.010 (+0.303...+0.323) - [100.0%]
Duration: 27 minutes 53 seconds
2.Rollout111/5(2) 8/2(2)eq: +0.285 (-0.029)
Player:
Opponent:
56.64% (G:16.05% B:0.59%)
43.36% (G:9.95% B:0.34%)
Conf.: ± 0.010 (+0.275...+0.295) - [0.0%]
Duration: 26 minutes 03 seconds
3.Rollout213/7(2) 11/5(2)eq: +0.250 (-0.063)
Player:
Opponent:
55.70% (G:16.65% B:0.84%)
44.30% (G:10.46% B:0.35%)
Conf.: ± 0.014 (+0.235...+0.264) - [0.0%]
Duration: 10 minutes 43 seconds
1 2592 Games rolled with Variance Reduction.
Dice Seed: 72596219
Moves: 3-ply, cube decisions: XG Roller

2 1296 Games rolled with Variance Reduction.
Dice Seed: 72596219
Moves: 3-ply, cube decisions: XG Roller






White is Player 2

score: 0
pip: 168
Unlimited Game
Jacoby Beaver
pip: 147
score: 0

Blue is Player 1
XGID=-a-b--E-D--BdC---b-cba--A-:0:0:1:66:0:0:3:0:10
Variant 2: A White 5pt checker is on her 4pt

1.Rollout111/5(2) 8/2(2)eq: +0.171
Player:
Opponent:
52.51% (G:19.31% B:0.76%)
47.49% (G:10.65% B:0.45%)
Conf.: ± 0.009 (+0.162...+0.180) - [100.0%]
Duration: 31 minutes 25 seconds
2.Rollout124/18 13/7(3)eq: +0.142 (-0.029)
Player:
Opponent:
52.76% (G:14.51% B:0.68%)
47.24% (G:11.18% B:0.37%)
Conf.: ± 0.009 (+0.133...+0.151) - [0.0%]
Duration: 36 minutes 09 seconds
3.Rollout213/1* 11/5(2)eq: +0.117 (-0.053)
Player:
Opponent:
51.22% (G:18.64% B:0.60%)
48.78% (G:11.72% B:0.53%)
Conf.: ± 0.017 (+0.100...+0.135) - [0.0%]
Duration: 4 minutes 50 seconds
4.Rollout213/7(2) 11/5(2)eq: +0.111 (-0.060)
Player:
Opponent:
50.96% (G:19.14% B:1.00%)
49.04% (G:11.24% B:0.47%)
Conf.: ± 0.016 (+0.095...+0.127) - [0.0%]
Duration: 10 minutes 26 seconds
1 3888 Games rolled with Variance Reduction.
Dice Seed: 12502781
Moves: 3-ply, cube decisions: XG Roller

2 1296 Games rolled with Variance Reduction.
Dice Seed: 12502781
Moves: 3-ply, cube decisions: XG Roller






White is Player 2

score: 0
pip: 167
Unlimited Game
Jacoby Beaver
pip: 147
score: 0

Blue is Player 1
XGID=-a-b--E-D--BdC---b-bca--A-:0:0:1:66:0:0:3:0:10
Variant 3: A White 6pt checker is on her 4pt

1.Rollout113/7(2) 11/5(2)eq: +0.218
Player:
Opponent:
53.84% (G:18.74% B:0.85%)
46.16% (G:9.71% B:0.39%)
Conf.: ± 0.009 (+0.209...+0.227) - [97.5%]
Duration: 27 minutes 22 seconds
2.Rollout111/5(2) 8/2(2)eq: +0.205 (-0.013)
Player:
Opponent:
53.53% (G:18.82% B:0.63%)
46.47% (G:10.20% B:0.41%)
Conf.: ± 0.008 (+0.198...+0.213) - [1.7%]
Duration: 28 minutes 54 seconds
3.Rollout124/18 13/7(3)eq: +0.204 (-0.014)
Player:
Opponent:
54.18% (G:15.66% B:0.76%)
45.82% (G:10.73% B:0.36%)
Conf.: ± 0.008 (+0.196...+0.212) - [0.9%]
Duration: 33 minutes 21 seconds
4.Rollout213/1* 11/5(2)eq: +0.192 (-0.026)
Player:
Opponent:
52.99% (G:19.29% B:0.58%)
47.01% (G:10.95% B:0.46%)
Conf.: ± 0.011 (+0.181...+0.203) - [0.0%]
Duration: 15 minutes 24 seconds
1 5184 Games rolled with Variance Reduction.
Dice Seed: 76220407
Moves: 3-ply, cube decisions: XG Roller

2 2592 Games rolled with Variance Reduction.
Dice Seed: 76220407
Moves: 3-ply, cube decisions: XG Roller

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.