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Bot Battle #104 -- Variants with Rollouts

Posted By: Nack Ballard
Date: Friday, 26 December 2025, at 9:24 p.m.

In Response To: Bot Battle #104 Rollout (Jason Lee)





White is Professional

score: 2
pip: 133
9 point match
pip: 148
score: 0

Blue is Hive Mind
XGID=---BBBBb---AcB--Bd-dA--Ab-:0:0:1:43:0:2:0:9:10
Original Position

1.xgRollout120/13eq: +0.091
Player:
Opponent:		50.77% (G:15.55% B:0.48%)
49.23% (G:12.40% B:0.22%)		Conf.: ± 0.004 (+0.087...+0.095) - [100.0%]
Duration: 3 hours 42 minutes
2.Rollout120/16 11/8eq: +0.071 (-0.020)
Player:
Opponent:		50.45% (G:16.14% B:0.52%)
49.55% (G:13.87% B:0.29%)		Conf.: ± 0.004 (+0.066...+0.075) - [0.0%]
Duration: 3 hours 36 minutes
3.playedRollout211/4eq: +0.051 (-0.040)
Player:
Opponent:		49.61% (G:15.95% B:0.56%)
50.39% (G:13.38% B:0.36%)		Conf.: ± 0.010 (+0.041...+0.060) - [0.0%]
Duration: 36 minutes 23 seconds
4.Rollout223/16eq: -0.193 (-0.283)
Player:
Opponent:		44.49% (G:8.71% B:0.32%)
55.51% (G:11.88% B:0.15%)		Conf.: ± 0.010 (-0.202...-0.183) - [0.0%]
Duration: 23 minutes 35 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.

Below are two variants.

Nack





White is Player 2

score: 2
pip: 133
9 point match
pip: 152
score: 0

Blue is Player 1
XGID=---B-BDb---AcB--Bd-dA--Ab-:0:0:1:43:0:2:0:9:10
Variant 1: Blue's 4pt checkers are moved to 6pt

1.Rollout111/4eq: -0.118
Player:
Opponent:		46.12% (G:14.56% B:0.48%)
53.88% (G:17.64% B:0.46%)		Conf.: ± 0.007 (-0.125...-0.112) - [98.1%]
Duration: 1 hour 13 minutes
2.Rollout120/13eq: -0.128 (-0.010)
Player:
Opponent:		45.98% (G:12.93% B:0.42%)
54.02% (G:16.29% B:0.38%)		Conf.: ± 0.007 (-0.135...-0.122) - [1.9%]
Duration: 1 hour 16 minutes
3.Rollout120/16 11/8eq: -0.142 (-0.024)
Player:
Opponent:		45.55% (G:13.66% B:0.47%)
54.45% (G:17.38% B:0.43%)		Conf.: ± 0.007 (-0.149...-0.135) - [0.0%]
Duration: 1 hour 12 minutes
4.Rollout223/20 6/2eq: -0.197 (-0.079)
Player:
Opponent:		43.44% (G:10.22% B:0.26%)
56.56% (G:10.30% B:0.23%)		Conf.: ± 0.012 (-0.209...-0.185) - [0.0%]
Duration: 9 minutes 15 seconds
1 5184 Games rolled with Variance Reduction.
Dice Seed: 32510498
Moves: 3-ply, cube decisions: XG Roller

2 1296 Games rolled with Variance Reduction.
Dice Seed: 32510498
Moves: 3-ply, cube decisions: XG Roller
White is Player 2

score: 2
pip: 133
9 point match
pip: 160
score: 0

Blue is Player 1
XGID=---B-BBb--BAcB--Bd-dA--Ab-:0:0:1:43:0:2:0:9:10
Variant 1: Blue's 4pt checkers are moved to 10pt

1.Rollout111/4eq: -0.127
Player:
Opponent:		46.17% (G:13.89% B:0.51%)
53.83% (G:18.36% B:0.45%)		Conf.: ± 0.015 (-0.142...-0.111) - [100.0%]
Duration: 13 minutes 30 seconds
2.Rollout120/13eq: -0.184 (-0.057)
Player:
Opponent:		45.12% (G:11.95% B:0.45%)
54.88% (G:18.90% B:0.36%)		Conf.: ± 0.014 (-0.198...-0.169) - [0.0%]
Duration: 12 minutes 47 seconds
3.Rollout120/16 11/8eq: -0.185 (-0.058)
Player:
Opponent:		45.09% (G:12.08% B:0.43%)
54.91% (G:19.18% B:0.43%)		Conf.: ± 0.014 (-0.199...-0.171) - [0.0%]
Duration: 13 minutes 23 seconds
4.Rollout123/20 10/6eq: -0.206 (-0.079)
Player:
Opponent:		43.61% (G:10.99% B:0.33%)
56.39% (G:13.24% B:0.26%)		Conf.: ± 0.013 (-0.219...-0.193) - [0.0%]
Duration: 15 minutes 47 seconds
1 1296 Games rolled with Variance Reduction.
Dice Seed: 74779933
Moves: 3-ply, cube decisions: XG Roller

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