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Mutual Holding Game checker play - ROLLOUT AND VARIANT

Posted By: Karol Szczerek
Date: Monday, 22 May 2017, at 9:30 p.m.

In Response To: Mutual Holding Game checker play (Karol Szczerek)

I've seen many examples, where breaking our anchor instead of a single blocking point in front of opp's anchor is correct. This one is no exception. Outfield control seems to be an essential factor in mutual holding games.

Original position:

		White is Player 2 score: 0 pip: 94 Unlimited Game pip: 98 score: 0 Blue is Player 1
XGID=-BD-BbC----B--a----cBbdba-:0:0:1:43:0:0:0:0:10
Blue to play 43

1.	Rollout1	20/17 20/16	eq: -0,253
	Player: Opponent: 43,12% (G:5,05% B:0,15%) 56,88% (G:14,95% B:0,25%) Conf.: ± 0,008 (-0,260...-0,245) - [100,0%] Duration: 1 minute 59 seconds
2.	Rollout1	20/13	eq: -0,321 (-0,069)
	Player: Opponent: 41,12% (G:5,66% B:0,14%) 58,88% (G:18,86% B:0,31%) Conf.: ± 0,007 (-0,328...-0,314) - [0,0%] Duration: 1 minute 51 seconds
3.	Rollout2	11/4	eq: -0,377 (-0,124)
	Player: Opponent: 37,94% (G:5,38% B:0,18%) 62,06% (G:10,19% B:0,22%) Conf.: ± 0,014 (-0,390...-0,363) - [0,0%] Duration: 24,2 seconds
1 1296 Games rolled with Variance Reduction. Moves: 3-ply, cube decisions: XG Roller 2 324 Games rolled with Variance Reduction. Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10

A variant, where I've moved white blot from his ace back to his deuce point:

		White is Player 2 score: 0 pip: 95 Unlimited Game pip: 98 score: 0 Blue is Player 1
XGID=-BD-BbC----B--a----cBbdc--:0:0:1:43:0:0:0:0:10
Blue to play 43

1.	Rollout1	20/13	eq: -0,288
	Player: Opponent: 42,47% (G:5,26% B:0,12%) 57,53% (G:14,50% B:0,29%) Conf.: ± 0,006 (-0,294...-0,282) - [100,0%] Duration: 4 minutes 45 seconds
2.	Rollout1	20/17 20/16	eq: -0,315 (-0,027)
	Player: Opponent: 41,71% (G:4,47% B:0,12%) 58,29% (G:13,82% B:0,30%) Conf.: ± 0,006 (-0,321...-0,310) - [0,0%] Duration: 4 minutes 56 seconds
3.	Rollout2	11/4	eq: -0,433 (-0,145)
	Player: Opponent: 36,67% (G:3,15% B:0,06%) 63,33% (G:8,08% B:0,13%) Conf.: ± 0,014 (-0,447...-0,420) - [0,0%] Duration: 32,4 seconds
1 2592 Games rolled with Variance Reduction. Moves: 3-ply, cube decisions: XG Roller 2 324 Games rolled with Variance Reduction. Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10

Messages In This Thread

• Mutual Holding Game checker play
  Karol Szczerek -- Sunday, 21 May 2017, at 8:40 p.m.
  • Mutual Holding Game checker play
    Sean Garber -- Monday, 22 May 2017, at 12:29 a.m.
    • Polish Backgammon Open
      Karol Szczerek -- Monday, 22 May 2017, at 5:05 a.m.
  • Mutual Holding Game checker play - ROLLOUT AND VARIANT
    Karol Szczerek -- Monday, 22 May 2017, at 9:30 p.m.
    • Mutual Holding Game checker play - ROLLOUT AND VARIANT
      Timothy Chow -- Tuesday, 23 May 2017, at 11:31 p.m.