BGonline.org Forums

Bot Battle #160 - Variants

Posted By: Nack Ballard
Date: Thursday, 1 October 2026, at 2:54 p.m.

In Response To: Bot Battle #160 Rollout (Jason Lee)

		White is Professional score: 2 pip: 142 9 point match pip: 156 score: 1 Blue is Hive Mind
XGID=-aa--BDBA---bD--ad-d---bB-:0:0:1:53:1:2:0:9:10
Original Position

1.	Rollout1	24/21 13/8	eq: +0.622
	Player: Opponent: 63.33% (G:19.14% B:1.02%) 36.67% (G:13.06% B:0.46%) Conf.: ± 0.005 (+0.617...+0.627) - [58.2%] Duration: 2 hours 39 minutes
2.	Rollout1	13/10 13/8	eq: +0.621 (-0.001)
	Player: Opponent: 62.73% (G:21.09% B:1.06%) 37.27% (G:12.59% B:1.09%) Conf.: ± 0.005 (+0.616...+0.626) - [41.8%] Duration: 2 hours 38 minutes
3.	Rollout2	24/16*	eq: +0.590 (-0.032)
	Player: Opponent: 62.42% (G:18.95% B:1.20%) 37.58% (G:11.92% B:0.71%) Conf.: ± 0.012 (+0.578...+0.602) - [0.0%] Duration: 36 minutes 34 seconds
1 7776 Games rolled with Variance Reduction. Moves: 4-ply, cube decisions: XG Roller+ Search interval: Huge 2 1296 Games rolled with Variance Reduction. Moves: 4-ply, cube decisions: XG Roller+ Search interval: Huge

Above is Jason's rollout of the original position. To reach it, Stick's Nactation of 64P-31P-54D-61P-51S-53 works well.

Below are contrasting variants. The first is 31P-31P-54D-61P-51S-53. (The second requires a longer sequence unless White opens 65D. It's a 2-point adjustment that causes a big swing.)

Nack

		White is Player 2 score: 0 pip: 148 Unlimited Game Jacoby Beaver pip: 156 score: 0 Blue is Player 1
XGID=-aa--BDBA---bD--ad-db---B-:0:0:1:53:0:0:3:0:10
Variant 1: White's 2pt is changed to her 5pt

1.	Rollout1	24/16*	eq: +0.262
	Player: Opponent: 56.56% (G:16.60% B:1.03%) 43.44% (G:13.54% B:0.65%) Conf.: ± 0.016 (+0.246...+0.277) - [100.0%] Duration: 21 minutes 24 seconds
2.	Rollout1	24/21 13/8	eq: +0.223 (-0.039)
	Player: Opponent: 56.28% (G:16.90% B:1.00%) 43.72% (G:15.37% B:0.65%) Conf.: ± 0.014 (+0.209...+0.237) - [0.0%] Duration: 16 minutes 27 seconds
3.	Rollout1	13/10 13/8	eq: +0.170 (-0.092)
	Player: Opponent: 54.53% (G:18.59% B:1.02%) 45.47% (G:16.12% B:1.09%) Conf.: ± 0.016 (+0.153...+0.186) - [0.0%] Duration: 3 minutes 00 second
1 1296 Games rolled with Variance Reduction. Dice Seed: 76220407 Moves: 3-ply, cube decisions: XG Roller

		White is Player 2 score: 0 pip: 140 Unlimited Game Jacoby Beaver pip: 156 score: 0 Blue is Player 1
XGID=-aa--BDBA---bD--ac-e---bB-:0:0:1:53:0:0:3:0:10
Variant 2: A White 8pt spare is on her 6pt

1.	Rollout1	13/10 13/8	eq: +0.554
	Player: Opponent: 63.46% (G:20.91% B:1.14%) 36.54% (G:12.46% B:0.90%) Conf.: ± 0.017 (+0.537...+0.571) - [100.0%] Duration: 12 minutes 59 seconds
2.	Rollout1	24/21 13/8	eq: +0.513 (-0.041)
	Player: Opponent: 63.38% (G:18.86% B:1.14%) 36.62% (G:13.29% B:0.46%) Conf.: ± 0.016 (+0.497...+0.530) - [0.0%] Duration: 12 minutes 36 seconds
3.	Rollout1	24/16*	eq: +0.497 (-0.057)
	Player: Opponent: 62.44% (G:19.04% B:1.20%) 37.56% (G:12.21% B:0.57%) Conf.: ± 0.015 (+0.482...+0.512) - [0.0%] Duration: 13 minutes 35 seconds
1 1296 Games rolled with Variance Reduction. Dice Seed: 85327691 Moves: 3-ply, cube decisions: XG Roller

Messages In This Thread

• Bot Battle #160
  Jason Lee -- Sunday, 6 September 2026, at 1:39 p.m.
  • Bot Battle #160 - 64P-31P-54D-61P-51S-53?
    Stick -- Sunday, 6 September 2026, at 3:20 p.m.
  • Bot Battle #160
    Jason Lee -- Sunday, 6 September 2026, at 8:14 p.m.
  • Bot Battle #160
    ah_clem -- Monday, 7 September 2026, at 12:54 p.m.
  • Bot Battle #160
    MK -- Tuesday, 8 September 2026, at 11:00 a.m.
  • Bot Battle #160 Rollout
    Jason Lee -- Tuesday, 8 September 2026, at 5:07 p.m.
    • Bot Battle #160 - Variants
      Nack Ballard -- Thursday, 1 October 2026, at 2:54 p.m.