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Blue to play 61 Rollout(s)

Posted By: Colin Owen
Date: Tuesday, 9 September 2025, at 1:33 p.m.

In Response To: Blue to play 61 (Colin Owen)

John O'Hagan and ah clem are both right in that 15/14 15/9 IS better than 15/8 - significantly so, in fact. But the double blotting play is also clearly better than 8/2 3/2. (Playing XG, I can't remember if I played 15/8 or made the board!) The two further RO's show, firstly, that 14, 9 is (unsurprisingly) even clearer with the Jacoby Rule, but also that it's best even at GS, albeit marginally. You'd need cojones to play it ATS!

		White is Player 2 score: 0 pip: 118 Unlimited Game Beaver pip: 103 score: 0 Blue is Player 1
XGID=-B-CB-BbB---bB-B--bcbbb---:0:0:1:61:0:0:2:0:10
Blue to play 61

1.	Rollout1	15/14 15/9	eq: -0.1362
	Player: Opponent: 47.18% (G:2.77% B:0.07%) 52.82% (G:13.73% B:0.29%) Conf.: ±0.0013 (-0.1375...-0.1349) - [100.0%] Duration: 28 minutes 00 second
2.	Rollout1	8/2 3/2	eq: -0.1740 (-0.0378)
	Player: Opponent: 45.21% (G:6.73% B:0.16%) 54.79% (G:14.34% B:0.39%) Conf.: ±0.0015 (-0.1754...-0.1725) - [0.0%] Duration: 26 minutes 46 seconds
3.	Rollout2	15/8	eq: -0.2011 (-0.0649)
	Player: Opponent: 43.87% (G:3.19% B:0.07%) 56.13% (G:10.69% B:0.20%) Conf.: ±0.0017 (-0.2027...-0.1994) - [0.0%] Duration: 8 minutes 40 seconds
1 46656 Games rolled with Variance Reduction. Dice Seed: 68231367 Moves: 3-ply, cube decisions: XG Roller 2 20736 Games rolled with Variance Reduction. Dice Seed: 68231367 Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10

		White is Player 2 score: 0 pip: 118 Unlimited Game Jacoby Beaver pip: 103 score: 0 Blue is Player 1
XGID=-B-CB-BbB---bB-B--bcbbb---:0:0:1:61:0:0:3:0:10
Blue to play 61

1.	Rollout1	15/14 15/9	eq: -0.0830
	Player: Opponent: 46.89% (G:2.53% B:0.06%) 53.11% (G:12.16% B:0.29%) Conf.: ±0.0017 (-0.0847...-0.0814) - [100.0%] Duration: 8 minutes 49 seconds
2.	Rollout1	8/2 3/2	eq: -0.1635 (-0.0805)
	Player: Opponent: 45.37% (G:6.50% B:0.16%) 54.63% (G:13.31% B:0.39%) Conf.: ±0.0023 (-0.1658...-0.1613) - [0.0%] Duration: 8 minutes 54 seconds
3.	Rollout2	15/8	eq: -0.1977 (-0.1147)
	Player: Opponent: 43.64% (G:3.12% B:0.08%) 56.36% (G:9.79% B:0.18%) Conf.: ±0.0024 (-0.2001...-0.1953) - [0.0%] Duration: 3 minutes 29 seconds
1 20736 Games rolled with Variance Reduction. Dice Seed: 68231367 Moves: 3-ply, cube decisions: XG Roller 2 10368 Games rolled with Variance Reduction. Dice Seed: 68231367 Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10

		White is Player 2 score: 0 pip: 118 2 point match Crawford pip: 103 score: 1 Blue is Player 1
XGID=-B-CB-BbB---bB-B--bcbbb---:0:0:1:61:1:0:1:2:10
Blue to play 61

1.	Rollout1	15/14 15/9	eq: -0.3475
	Player: Opponent: 48.31% (G:4.01% B:0.12%) 51.69% (G:15.69% B:0.72%) Conf.: ±0.0012 (-0.3487...-0.3464) - [100.0%] Duration: 4 minutes 08 seconds
2.	Rollout1	15/8	eq: -0.3526 (-0.0051)
	Player: Opponent: 44.78% (G:4.31% B:0.11%) 55.22% (G:12.41% B:0.49%) Conf.: ±0.0012 (-0.3538...-0.3515) - [0.0%] Duration: 4 minutes 02 seconds
3.	Rollout2	8/2 3/2	eq: -0.3890 (-0.0415)
	Player: Opponent: 46.41% (G:7.57% B:0.09%) 53.59% (G:15.86% B:0.70%) Conf.: ±0.0021 (-0.3911...-0.3869) - [0.0%] Duration: 1 minute 45 seconds
1 20736 Games rolled with Variance Reduction. Dice Seed: 61479287 Moves: 3-ply, cube decisions: XG Roller 2 10368 Games rolled with Variance Reduction. Dice Seed: 61479287 Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10, MET: Kazaross XG2

Messages In This Thread

• Blue to play 61
  Colin Owen -- Friday, 5 September 2025, at 10:01 p.m.
  • Blue to play 61
    ah_clem -- Saturday, 6 September 2025, at 12:19 a.m.
  • Blue to play 61
    John O'Hagan -- Sunday, 7 September 2025, at 11:35 a.m.
  • Blue to play 61 Rollout(s)
    Colin Owen -- Tuesday, 9 September 2025, at 1:33 p.m.
    • Blue to play 61 Rollout(s)
      John O'Hagan -- Tuesday, 9 September 2025, at 3:56 p.m.