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Checker Challenge - Variants (rolled out)

Posted By: Nack Ballard
Date: Thursday, 23 October 2025, at 11:22 p.m.

In Response To: Position of the Day 07-14-25 - A Checker Challenge - Rollouts (Stick)

Here are some single-change variants that might interest you.

Nack

		White is Player 2 score: 0 pip: 149 Unlimited Game Jacoby Beaver pip: 152 score: 0 Blue is Player 1
XGID=---BaBBB---AfD---b-db--AA-:0:0:1:53:0:0:3:0:10
In the original position, White owns her 4pt instead of her 5pt, and there 13/8 7/4* beats making the 8pt by .039

1.	Rollout1	13/8 11/8	eq: +0.039
	Player: Opponent: 49.71% (G:15.59% B:0.43%) 50.29% (G:9.14% B:0.41%) Conf.: ± 0.006 (+0.032...+0.045) - [97.4%] Duration: 46 minutes 38 seconds
2.	Rollout1	13/8 7/4*	eq: +0.028 (-0.011)
	Player: Opponent: 49.34% (G:19.50% B:0.49%) 50.66% (G:15.29% B:1.25%) Conf.: ± 0.009 (+0.019...+0.037) - [2.6%] Duration: 49 minutes 13 seconds
3.	Rollout2	11/6 7/4*	eq: +0.000 (-0.038)
	Player: Opponent: 48.60% (G:18.66% B:0.42%) 51.40% (G:13.27% B:0.86%) Conf.: ± 0.017 (-0.017...+0.018) - [0.0%] Duration: 25 minutes 59 seconds
1 5184 Games rolled with Variance Reduction. Dice Seed: 63433446 Moves: 3-ply, cube decisions: XG Roller 2 1296 Games rolled with Variance Reduction. Dice Seed: 63433446 Moves: 3-ply, cube decisions: XG Roller

		White is Player 2 score: 0 pip: 149 Unlimited Game Jacoby Beaver pip: 152 score: 0 Blue is Player 1
XGID=---BaBBB---AfD---c-c-b-AA-:0:0:1:43:0:0:3:0:10
In the original position, White's 8pt spare is on her 6pt, and there 11/4* beats anchoring by .010

1.	Rollout1	24/20 23/20	eq: +0.183
	Player: Opponent: 53.35% (G:12.08% B:0.23%) 46.65% (G:4.27% B:0.16%) Conf.: ± 0.006 (+0.177...+0.189) - [100.0%] Duration: 39 minutes 11 seconds
2.	Rollout1	11/4*	eq: +0.157 (-0.026)
	Player: Opponent: 52.04% (G:19.98% B:0.49%) 47.96% (G:10.71% B:0.57%) Conf.: ± 0.008 (+0.149...+0.165) - [0.0%] Duration: 36 minutes 01 second
3.	Rollout2	13/9 7/4*	eq: +0.151 (-0.032)
	Player: Opponent: 52.02% (G:21.43% B:0.48%) 47.98% (G:14.21% B:1.31%) Conf.: ± 0.017 (+0.134...+0.169) - [0.0%] Duration: 21 minutes 39 seconds
1 5184 Games rolled with Variance Reduction. Dice Seed: 44881755 Moves: 3-ply, cube decisions: XG Roller 2 1296 Games rolled with Variance Reduction. Dice Seed: 44881755 Moves: 3-ply, cube decisions: XG Roller

		White is Player 2 score: 0 pip: 146 Unlimited Game Jacoby Beaver pip: 152 score: 0 Blue is Player 1
XGID=---BaBBB---AeD---bbe---AA-:0:0:1:43:0:0:3:0:10
In the original position, White includes 42P instead of 61P, and there 11/4* beats 13/9 7/4* by .029(eval)

1.	Rollout1	13/9 7/4*	eq: +0.160
	Player: Opponent: 52.07% (G:20.47% B:0.51%) 47.93% (G:13.16% B:1.01%) Conf.: ± 0.009 (+0.150...+0.169) - [100.0%] Duration: 1 hour 10 minutes
2.	Rollout1	11/4*	eq: +0.134 (-0.026)
	Player: Opponent: 51.52% (G:19.18% B:0.45%) 48.48% (G:10.44% B:0.54%) Conf.: ± 0.008 (+0.126...+0.142) - [0.0%] Duration: 1 hour 06 minutes
3.	Rollout1	24/20 23/20	eq: +0.114 (-0.046)
	Player: Opponent: 51.23% (G:11.97% B:0.22%) 48.77% (G:4.26% B:0.15%) Conf.: ± 0.006 (+0.108...+0.120) - [0.0%] Duration: 1 hour 15 minutes
4.	Rollout1	24/20 7/4*	eq: +0.101 (-0.059)
	Player: Opponent: 51.27% (G:18.08% B:0.45%) 48.73% (G:12.05% B:0.72%) Conf.: ± 0.009 (+0.092...+0.110) - [0.0%] Duration: 1 hour 10 minutes
1 5184 Games rolled with Variance Reduction. Dice Seed: 94391700 Moves: 3-ply, cube decisions: XG Roller

		White is Player 2 score: 0 pip: 149 Unlimited Game Jacoby Beaver pip: 152 score: 0 Blue is Player 1
XGID=---BaBBB---AfD---b-db--AA-:0:0:1:31:0:0:3:0:10
In the original position, White owns her 4pt instead of her 5pt, and there 7/6 7/4* beats making the 10pt by .008

1.	Rollout1	13/10 11/10	eq: +0.035
	Player: Opponent: 49.43% (G:16.05% B:0.46%) 50.57% (G:10.26% B:0.53%) Conf.: ± 0.007 (+0.028...+0.041) - [100.0%] Duration: 1 hour 16 minutes
2.	Rollout1	7/6 7/4*	eq: +0.014 (-0.021)
	Player: Opponent: 48.92% (G:18.42% B:0.39%) 51.08% (G:12.92% B:0.81%) Conf.: ± 0.007 (+0.007...+0.022) - [0.0%] Duration: 1 hour 12 minutes
3.	Rollout2	7/4* 4/3	eq: -0.019 (-0.054)
	Player: Opponent: 47.72% (G:17.14% B:0.37%) 52.28% (G:12.35% B:0.70%) Conf.: ± 0.014 (-0.033...-0.005) - [0.0%] Duration: 17 minutes 49 seconds
1 5184 Games rolled with Variance Reduction. Dice Seed: 10901587 Moves: 3-ply, cube decisions: XG Roller 2 1296 Games rolled with Variance Reduction. Dice Seed: 10901587 Moves: 3-ply, cube decisions: XG Roller

		White is Player 2 score: 0 pip: 149 Unlimited Game Jacoby Beaver pip: 152 score: 0 Blue is Player 1
XGID=---BaBBB---AfD---b-db--AA-:0:0:1:21:0:0:3:0:10
In the original position, White owns her 4pt instead of her 5pt, and there 7/4* beats 23/22 13/11 by .023

1.	Rollout1	23/22 13/11	eq: -0.077
	Player: Opponent: 46.75% (G:13.48% B:0.35%) 53.25% (G:10.01% B:0.47%) Conf.: ± 0.007 (-0.085...-0.070) - [100.0%] Duration: 1 hour 28 minutes
2.	Rollout1	7/4*	eq: -0.107 (-0.030)
	Player: Opponent: 46.70% (G:16.33% B:0.40%) 53.30% (G:14.91% B:1.07%) Conf.: ± 0.008 (-0.115...-0.100) - [0.0%] Duration: 1 hour 30 minutes
3.	Rollout1	24/22 23/22	eq: -0.168 (-0.091)
	Player: Opponent: 44.43% (G:10.65% B:0.27%) 55.57% (G:7.39% B:0.29%) Conf.: ± 0.006 (-0.175...-0.162) - [0.0%] Duration: 1 hour 35 minutes
1 5184 Games rolled with Variance Reduction. Dice Seed: 78716803 Moves: 3-ply, cube decisions: XG Roller

Messages In This Thread

• Position of the Day 07-14-25 - A Checker Challenge
  Stick -- Saturday, 4 October 2025, at 11:02 a.m.
  • Position of the Day 07-14-25 - A Checker Challenge
    ah_clem -- Saturday, 4 October 2025, at 3:00 p.m.
  • Position of the Day 07-14-25 - A Checker Challenge
    John O'Hagan -- Saturday, 4 October 2025, at 4:11 p.m.
  • Position of the Day 07-14-25 - A Checker Challenge - Rollouts
    Stick -- Wednesday, 22 October 2025, at 4:08 p.m.
    • Checker Challenge - Variants (rolled out)
      Nack Ballard -- Thursday, 23 October 2025, at 11:22 p.m.