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4-ply RO and 2 variants

Posted By: Petter Bengtsson
Date: Tuesday, 13 May 2025, at 12:00 p.m.

In Response To: 4-1 backgame, bearing in with 54 to play (ah_clem)

Original position: 4-ply/XGR+/Huge rollout

		White is Player 2 score: 0 pip: 192 5 point match pip: 131 score: 0 Blue is Player 1
XGID=bb-BbCCBA---bA---A-cB-b-b-:1:-1:1:54:0:0:0:5:9
Blue to play 54

1.	Rollout1	13/8 6/2	eq: +0,869
	Player: Opponent: 74,20% (G:38,74% B:4,80%) 25,80% (G:2,75% B:0,20%) Conf.: ± 0,009 (+0,861...+0,878) - [100,0%] Duration: 13 minutes 51 seconds
2.	Rollout1	20/16 13/8	eq: +0,839 (-0,030)
	Player: Opponent: 72,85% (G:38,45% B:5,10%) 27,15% (G:2,43% B:0,14%) Conf.: ± 0,008 (+0,830...+0,847) - [0,0%] Duration: 13 minutes 07 seconds
3.	Rollout1	17/8	eq: +0,821 (-0,048)
	Player: Opponent: 72,44% (G:38,47% B:5,20%) 27,56% (G:2,69% B:0,14%) Conf.: ± 0,009 (+0,812...+0,830) - [0,0%] Duration: 13 minutes 33 seconds
4.	Rollout1	7/2 6/2	eq: +0,796 (-0,074)
	Player: Opponent: 70,34% (G:39,85% B:6,36%) 29,66% (G:2,64% B:0,12%) Conf.: ± 0,010 (+0,786...+0,805) - [0,0%] Duration: 12 minutes 25 seconds
1 1296 Games rolled with Variance Reduction. Moves: 4-ply, cube decisions: XG Roller+ Search interval: Huge

eXtreme Gammon Version: 2.10, MET: Kazaross XG2

Variant #1: White has 4-point instead of 1-point

		White is Player 2 score: 0 pip: 198 5 point match pip: 131 score: 0 Blue is Player 1
XGID=bb-BbCCBA---bA---A-cBbb---:1:-1:1:54:0:0:0:5:9
Blue to play 54

1.	Rollout1	13/8 6/2	eq: +0,542
	Player: Opponent: 65,09% (G:33,82% B:5,09%) 34,91% (G:4,75% B:0,49%) Conf.: ± 0,010 (+0,532...+0,553) - [100,0%] Duration: 17 minutes 17 seconds
2.	Rollout1	20/16 13/8	eq: +0,502 (-0,041)
	Player: Opponent: 63,18% (G:34,71% B:5,24%) 36,82% (G:4,35% B:0,30%) Conf.: ± 0,009 (+0,492...+0,511) - [0,0%] Duration: 16 minutes 16 seconds
3.	Rollout1	17/8	eq: +0,489 (-0,053)
	Player: Opponent: 62,73% (G:34,67% B:5,68%) 37,27% (G:4,29% B:0,38%) Conf.: ± 0,010 (+0,479...+0,499) - [0,0%] Duration: 15 minutes 57 seconds
4.	Rollout1	7/2 6/2	eq: +0,458 (-0,085)
	Player: Opponent: 60,88% (G:35,92% B:6,39%) 39,12% (G:4,54% B:0,58%) Conf.: ± 0,010 (+0,448...+0,468) - [0,0%] Duration: 15 minutes 57 seconds
1 1296 Games rolled with Variance Reduction. Moves: 4-ply, cube decisions: XG Roller+ Search interval: Huge

eXtreme Gammon Version: 2.10, MET: Kazaross XG2

Variant #2: White has 43 pips better timing

		White is Player 2 score: 0 pip: 235 5 point match pip: 131 score: 0 Blue is Player 1
XGID=bc-BcCCBA---bA---A-cB-b---:1:-1:1:54:0:0:0:5:9
Blue to play 54

1.	Rollout1	7/2 6/2	eq: +0,661
	Player: Opponent: 62,65% (G:44,49% B:10,31%) 37,35% (G:2,58% B:0,16%) Conf.: ± 0,006 (+0,654...+0,667) - [100,0%] Duration: 1 hour 38 minutes
2.	Rollout1	13/8 6/2	eq: +0,642 (-0,019)
	Player: Opponent: 63,23% (G:42,71% B:9,27%) 36,77% (G:2,87% B:0,21%) Conf.: ± 0,007 (+0,635...+0,649) - [0,0%] Duration: 1 hour 51 minutes
3.	Rollout2	20/16 13/8	eq: +0,605 (-0,056)
	Player: Opponent: 61,80% (G:42,41% B:9,81%) 38,20% (G:2,68% B:0,22%) Conf.: ± 0,013 (+0,592...+0,618) - [0,0%] Duration: 24 minutes 58 seconds
4.	Rollout2	17/8	eq: +0,603 (-0,058)
	Player: Opponent: 61,71% (G:42,24% B:10,10%) 38,28% (G:2,90% B:0,24%) Conf.: ± 0,014 (+0,589...+0,617) - [0,0%] Duration: 25 minutes 04 seconds
1 5184 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

eXtreme Gammon Version: 2.10, MET: Kazaross XG2

Messages In This Thread

• 4-1 backgame, bearing in with 54 to play
  ah_clem -- Friday, 9 May 2025, at 1:34 a.m.
  • 4-1 backgame, bearing in with 54 to play
    John O'Hagan -- Friday, 9 May 2025, at 3:51 a.m.
    • 4-1 backgame, bearing in with 54 to play
      Colin Owen -- Friday, 9 May 2025, at 1:25 p.m.
      • 4-1 backgame, bearing in with 54 to play
        pierrez -- Friday, 9 May 2025, at 5:27 p.m.
  • 4-1 backgame, bearing in with 54 to play
    Bob Koca -- Friday, 9 May 2025, at 6:17 p.m.
  • 4-1 backgame, bearing in with 54 to play
    christian munk-christensen -- Saturday, 10 May 2025, at 7:14 a.m.
  • ROLLOUT: 4-1 backgame, bearing in with 54 to play
    ah_clem -- Saturday, 10 May 2025, at 4:52 p.m.
    • ROLLOUT: 4-1 backgame, bearing in with 54 to play
      Stick -- Saturday, 10 May 2025, at 9:50 p.m.
      • ROLLOUT: 4-1 backgame, bearing in with 54 to play
        ah_clem -- Saturday, 10 May 2025, at 10:20 p.m.
        • ROLLOUT: 4-1 backgame, bearing in with 54 to play
          Stick -- Saturday, 10 May 2025, at 11:53 p.m.
          • ROLLOUT: 4-1 backgame, bearing in with 54 to play
            ah_clem -- Sunday, 11 May 2025, at 2:54 p.m.
            • ROLLOUT: 4-1 backgame, bearing in with 54 to play
              Petter Bengtsson -- Tuesday, 13 May 2025, at 11:51 a.m.
              • ROLLOUT: 4-1 backgame, bearing in with 54 to play
                ah_clem -- Monday, 19 May 2025, at 2:31 p.m.
  • 4-ply RO and 2 variants
    Petter Bengtsson -- Tuesday, 13 May 2025, at 12:00 p.m.