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21$-64K-32-51D-51S-65R-53P-44 & Variant — Rollouts

Posted By: Taper_Mike
Date: Sunday, 22 January 2012, at 10:25 a.m.

In Response To: 21$-64K-32U-51D-51Z-65R-53P-44 — Double-anchor position? (Taper_Mike)

First is a rollout of the original position. Making the 5pt is correct by a large margin. Next is a rollout of Petter’s variant. Making the 5pt is still correct, but by a much smaller amount. I believe that Nack’s variant shows a position where making the 4pt and 9pt is correct. My rollout is under way. A note about Nactation: You may have noticed that Nack changed my 32U to 32. It was on the third roll, where two checkers are entered from the bar. After the roll is given, no Nactation symbol is required, although is it not a mistake to use ">" or "U." Nack also changed my 51Z to 51S. (He never misses a thing!) In general, S is preferred as a substitute for Z, whenever the normal S family is empty. It allows you to say (out loud), "Split!" instead of, "Zplit!" (No drooling, please.) Once again, it is not an error to use Z. This is a case where I wish Nactation required that Z be used. For me, it is an extra step to check whether S can be used for Z, and that means evaluating two Nactation families instead of one. It is not a big deal, though. Mike

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21$-64K-32-51D-51S-65R-53P-44 [P O66 D110 A168 N172 N204] "<=5

White is Player 2 score: 0 pip: 179 Unlimited Game Jacoby Beaver pip: 140 score: 0 Blue is Player 1 XGID=-b-b--E-D---cF---c-c--b---:0:0:1:44:0:0:3:0:10 Blue to play 44

1. Rollout1 13/5(2) eq: +0.7367 Player: Opponent: 65.90% (G:20.84% B:1.52%) 34.10% (G:5.64% B:0.20%) Conf.: ±0.0078 (+0.7289...+0.7445) - [100.0%] Duration: 29 minutes 08 seconds 2. Rollout1 13/9(2) 8/4(2) eq: +0.6703 (-0.0664) Player: Opponent: 64.80% (G:20.81% B:1.59%) 35.20% (G:6.41% B:0.26%) Conf.: ±0.0085 (+0.6619...+0.6788) - [0.0%] Duration: 30 minutes 02 seconds 3. Rollout1 13/9(4) eq: +0.6266 (-0.1101) Player: Opponent: 64.15% (G:18.75% B:1.18%) 35.85% (G:6.44% B:0.23%) Conf.: ±0.0084 (+0.6182...+0.6351) - [0.0%] Duration: 32 minutes 29 seconds 4. Rollout1 8/4(2) 6/2(2) eq: +0.5689 (-0.1678) Player: Opponent: 62.04% (G:21.04% B:1.65%) 37.96% (G:7.61% B:0.27%) Conf.: ±0.0078 (+0.5611...+0.5768) - [0.0%] Duration: 31 minutes 16 seconds 5. Rollout1 13/9(3) 6/2 eq: +0.5649 (-0.1718) Player: Opponent: 63.15% (G:18.01% B:0.92%) 36.85% (G:7.66% B:0.28%) Conf.: ±0.0080 (+0.5569...+0.5729) - [0.0%] Duration: 34 minutes 56 seconds 6. Rollout1 13/9(2) 6/2(2) eq: +0.5326 (-0.2041) Player: Opponent: 61.36% (G:19.57% B:1.40%) 38.64% (G:7.69% B:0.28%) Conf.: ±0.0080 (+0.5246...+0.5406) - [0.0%] Duration: 30 minutes 43 seconds 1 5184 Games rolled with Variance Reduction. Dice Seed: 31054077 Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.01

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21$-64K-32-65D-51S-65R-53P-44 [P O24 A83] "<=5

White is Player 2 score: 0 pip: 179 Unlimited Game Jacoby Beaver pip: 135 score: 0 Blue is Player 1 XGID=-b-b--E-E---cE---c-c--b---:0:0:1:44:0:0:3:0:10 Blue to play 44

1. Rollout1 13/5(2) eq: +0.6736 Player: Opponent: 63.95% (G:21.49% B:1.63%) 36.05% (G:5.70% B:0.20%) Conf.: ±0.0078 (+0.6658...+0.6815) - [100.0%] Duration: 29 minutes 33 seconds 2. Rollout1 13/9(2) 8/4(2) eq: +0.6496 (-0.0240) Player: Opponent: 63.71% (G:21.56% B:1.80%) 36.29% (G:5.95% B:0.22%) Conf.: ±0.0083 (+0.6413...+0.6579) - [0.0%] Duration: 29 minutes 21 seconds 3. Rollout1 8/4(2) 6/2(2) eq: +0.5909 (-0.0827) Player: Opponent: 61.89% (G:21.75% B:1.88%) 38.11% (G:6.59% B:0.26%) Conf.: ±0.0082 (+0.5827...+0.5991) - [0.0%] Duration: 28 minutes 32 seconds 1 5184 Games rolled with Variance Reduction. Dice Seed: 1154109 Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.01

Messages In This Thread

• 21$-64K-32U-51D-51Z-65R-53P-44 — Double-anchor position?
  Taper_Mike -- Friday, 20 January 2012, at 6:24 p.m.
  • 21$-64K-32U-51D-51Z-65R-53P-44 — Double-anchor position?
    Stick -- Friday, 20 January 2012, at 8:54 p.m.
    • 21$-64K-32U-51D-51Z-65R-53P-44 — Double-anchor position?
      Daniel Murphy -- Friday, 20 January 2012, at 9:33 p.m.
    • 21$-64K-32U-51D-51Z-65R-53P-44 — Double-anchor position?
      neilkaz -- Saturday, 21 January 2012, at 1:29 a.m.
  • Variant
    Petter Bengtsson -- Friday, 20 January 2012, at 11:15 p.m.
    • Variant
      Taper_Mike -- Saturday, 21 January 2012, at 12:34 a.m.
    • Variant
      Daniel Murphy -- Saturday, 21 January 2012, at 1:02 a.m.
    • Another variant
      Nack Ballard -- Saturday, 21 January 2012, at 3:36 a.m.
      • Another variant
        Daniel Murphy -- Saturday, 21 January 2012, at 4:40 a.m.
      • Another variant
        Taper_Mike -- Sunday, 22 January 2012, at 9:43 a.m.
      • Another variant (23pt): Rollout
        Nack Ballard -- Sunday, 22 January 2012, at 9:15 p.m.
        • Another variant (23pt) — Another Rollout
          Taper_Mike -- Monday, 23 January 2012, at 8:14 a.m.
  • 21$-64K-32-51D-51S-65R-53P-44 & Variant — Rollouts
    Taper_Mike -- Sunday, 22 January 2012, at 10:25 a.m.
    • Nactation notes
      Nack Ballard -- Sunday, 22 January 2012, at 9:01 p.m.
      • Nactation notes — S as a substitute for Z
        Taper_Mike -- Sunday, 22 January 2012, at 10:50 p.m.
        • Nactation notes — S as a substitute for Z
          Nack Ballard -- Monday, 23 January 2012, at 4:29 a.m.
          • Nactation notes — S as a substitute for Z
            Taper_Mike -- Monday, 23 January 2012, at 5:07 a.m.
            • Nactation notes — S as a substitute for Z
              Taper_Mike -- Monday, 23 January 2012, at 7:33 a.m.
              • Nactation notes — S as a substitute for Z
                Nack Ballard -- Monday, 23 January 2012, at 11:54 a.m.
                • Analogy for S/Z
                  Nack Ballard -- Monday, 23 January 2012, at 8:44 p.m.