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Position of the Day 10-30-23 - Rollout

Posted By: pierrez
Date: Thursday, 9 November 2023, at 10:41 a.m.

In Response To: Position of the Day 10-30-23 - Rollout (Stick)

Hold on a second. If the rationale looks flawless, have a look at these 2 variants :

White bar point is filled for both variants and some spare checkers are added for the second variant :


 






 


White is Player 2 score: 0 pip: 94 Unlimited Game Jacoby Beaver pip: 166 score: 0 Blue is Player 1 XGID=--ABBBB--------bbbbcBBbBb-:1:1:1:63:0:0:3:0:10 Blue to play 63 1. Rollout1 20/11 eq: -0,121 Player: Opponent: 44,57% (G:7,91% B:0,33%) 55,43% (G:26,25% B:1,04%) Conf.: ± 0,011 (-0,132...-0,111) - [100,0%] Duration: 9 minutes 12 seconds 2. Rollout1 23/14 eq: -0,251 (-0,129) Player: Opponent: 38,57% (G:6,35% B:0,22%) 61,43% (G:22,63% B:0,20%) Conf.: ± 0,009 (-0,260...-0,242) - [0,0%] Duration: 9 minutes 35 seconds 3. 4-ply 20/14 5/2 eq: -0,245 (-0,123) Player: Opponent: 40,76% (G:6,15% B:0,20%) 59,24% (G:28,44% B:1,16%) 4. 3-ply 20/14 6/3 eq: -0,373 (-0,251) Player: Opponent: 37,16% (G:4,91% B:0,33%) 62,84% (G:31,25% B:1,31%) 5. 2-ply 20/14 4/1 eq: -0,453 (-0,332) Player: Opponent: 35,45% (G:4,95% B:0,13%) 64,55% (G:34,65% B:1,72%) 1 1296 Games rolled with Variance Reduction. Moves: 3-ply, cube decisions: XG Roller eXtreme Gammon Version: 2.10

White is Joueur 2 score: 0 pip: 107 Unlimited Game Jacoby Beaver pip: 166 score: 0 Blue is Joueur 1 XGID=--ABBBB--------bbcccBBbB--:1:1:1:63:0:0:3:0:10 Blue to play 63 1. Rollout1 23/14 eq: -0,348 Player: Opponent: 32,50% (G:4,99% B:0,19%) 67,50% (G:15,96% B:0,22%) Conf.: ± 0,010 (-0,358...-0,338) - [100,0%] Duration: 9 minutes 08 seconds 2. Rollout1 20/11 eq: -0,374 (-0,026) Player: Opponent: 34,29% (G:5,31% B:0,18%) 65,71% (G:23,25% B:1,01%) Conf.: ± 0,010 (-0,383...-0,364) - [0,0%] Duration: 8 minutes 31 seconds 3. 4-ply 20/14 5/2 eq: -0,449 (-0,101) Player: Opponent: 31,41% (G:4,16% B:0,11%) 68,59% (G:24,21% B:0,98%) 4. 3-ply 20/14 6/3 eq: -0,524 (-0,176) Player: Opponent: 29,42% (G:3,33% B:0,20%) 70,58% (G:25,96% B:1,13%) 5. 3-ply 20/14 4/1 eq: -0,553 (-0,204) Player: Opponent: 28,99% (G:3,43% B:0,15%) 71,01% (G:27,46% B:1,31%) 1 1296 Games rolled with Variance Reduction. Moves: 3-ply, cube decisions: XG Roller eXtreme Gammon Version: 2.19.211.pre-release

In the left one, the best choice is the reverse of the original position, when in the right one, it is almost a toss up.

Messages In This Thread

• Position of the Day 10-30-23
  Stick -- Sunday, 5 November 2023, at 10:26 p.m.
  • Position of the Day 10-30-23
    Timothy Chow -- Tuesday, 7 November 2023, at 2:55 p.m.
  • Position of the Day 10-30-23 - Rollout
    Stick -- Wednesday, 8 November 2023, at 11:34 p.m.
    • Position of the Day 10-30-23 - Rollout
      pierrez -- Thursday, 9 November 2023, at 10:41 a.m.
    • Position of the Day 10-30-23 - Rollout
      Timothy Chow -- Thursday, 9 November 2023, at 12:36 p.m.
    • PotD 10-30-23 -- Variant and ROLLOUT
      Nack Ballard -- Thursday, 9 November 2023, at 3:24 p.m.