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54S-63

Posted By: Nack Ballard
Date: Thursday, 3 June 2010, at 3:09 p.m.

In Response To: Opening 54 rollout, XG 3-ply (Casper van der Tak)

54S-63

One of the things that surprise me is the 63 play. From bot rollouts of similar positions, I have learned that this probably should be played 13/7 8/5*, which was not even on my radar screen before bot rollouts (I'd play 24/18 8/5* or 24/15, more often the first). And if I play such move myself, the results are terrible (same for 64 P on the opening roll). Does the book discuss the 13/7 8/5* play as well?

Yes (including diagrams), though not at length.

I have never had anything but 54S-63R played against me. H (Hit, 13/7 8/5*) is not only best but it's a marvelous move to make as the stronger player (which means that 90% of people should gravitate towards it on that basis alone :)

The plays are diagrammed below with (money, bot aggregate) error sizes encaptioned.

Blue played H (Hit, 13/7 8/5*), best

Blue played X (hit-and-split, 24/18 8/5*) -.015

Blue played R (Run, 24/15), -.019

At gammon save, R (diagrammed just above) crosses over and is right by a hair, according to a short (5k) GnuBG rollout: s[R H1.1 $4.1 X11 Z11]. Stick will probably be posting a gammon save rollout on XG soon.

Key: H = Hit (13/7 8/5*), X = hit-and-split (24/18 8/5*), R = Run (24/15), $ = Slot (13/4), Z = reverse split (24/21 13/7).

Error sizes are in thousandths; so, in the result of the previous paragraph, at gammon (s)ave, R is best, H is -.0011, $ is -.0041, and X and Z are -.011.

Nack

Messages In This Thread

• Opening 54 rollout, XG 3-ply
  KenB -- Wednesday, 2 June 2010, at 3:21 p.m.
  • Opening 54 rollout, XG 3-ply
    neilkaz -- Wednesday, 2 June 2010, at 3:40 p.m.
    • Opening 54 rollout, XG 3-ply
      Stick -- Wednesday, 2 June 2010, at 7:08 p.m.
      • Opening 54 rollout, XG 3-ply
        neilkaz -- Wednesday, 2 June 2010, at 7:28 p.m.
  • Opening 54 rollout, Snowie
    Nack Ballard -- Wednesday, 2 June 2010, at 4:00 p.m.
  • Opening 54 rollouts (two), GnuBG
    Nack Ballard -- Wednesday, 2 June 2010, at 4:21 p.m.
    • Opening 54 rollouts (two), GnuBG
      Stick -- Wednesday, 2 June 2010, at 7:07 p.m.
      • Opening 54 rollouts (two), GnuBG
        Nack Ballard -- Wednesday, 2 June 2010, at 7:24 p.m.
        • Opening 54 rollouts (two), GnuBG
          Stick -- Wednesday, 2 June 2010, at 7:34 p.m.
  • Opening 54 rollout, XG 3-ply
    Nack Ballard -- Wednesday, 2 June 2010, at 4:55 p.m.
    • Opening 54 rollout, XG 3-ply
      phil simborg -- Wednesday, 2 June 2010, at 5:46 p.m.
      • Opening move data, three bots
        Nack Ballard -- Wednesday, 2 June 2010, at 7:11 p.m.
        • Opening move data, three bots
          Daniel Murphy -- Wednesday, 2 June 2010, at 7:25 p.m.
          • Opening move data, three bots
            Nack Ballard -- Wednesday, 2 June 2010, at 8:38 p.m.
        • Opening 21 XG 4 ply 46k
          neilkaz -- Wednesday, 2 June 2010, at 7:26 p.m.
        • OK can start 4 ply RO in morning
          neilkaz -- Wednesday, 2 June 2010, at 10:38 p.m.
          • OK can start 4 ply RO in morning
            Nack Ballard -- Wednesday, 2 June 2010, at 10:56 p.m.
            • OK can start 4 ply RO in morning
              neilkaz -- Wednesday, 2 June 2010, at 10:58 p.m.
              • OK can start 4 ply RO in morning
                Gregg Cattanach -- Thursday, 3 June 2010, at 3:41 p.m.
              • OK can start 4 ply RO in morning
                Nack Ballard -- Thursday, 3 June 2010, at 4:56 p.m.
  • Opening 54 rollout, XG 3-ply
    Stick -- Wednesday, 2 June 2010, at 7:15 p.m.
    • Opening 54 rollout, XG 3-ply
      David Rockwell -- Wednesday, 2 June 2010, at 7:27 p.m.
      • Opening 54 rollout, XG 3-ply
        Nack Ballard -- Wednesday, 2 June 2010, at 8:02 p.m.
        • Opening 54 rollout, XG 3-ply
          Casper van der Tak -- Wednesday, 2 June 2010, at 8:25 p.m.
          • Opening 54 rollout, XG 3-ply
            Nack Ballard -- Wednesday, 2 June 2010, at 9:30 p.m.
            • Opening 54 rollout, XG 3-ply
              Casper van der Tak -- Thursday, 3 June 2010, at 7:04 a.m.
              • 54S-63
                Nack Ballard -- Thursday, 3 June 2010, at 3:09 p.m.
                • 54S-63
                  Casper van der Tak -- Thursday, 3 June 2010, at 3:33 p.m.
                  • 54S-63
                    Stick -- Thursday, 3 June 2010, at 3:53 p.m.
                  • 54S-63
                    Nack Ballard -- Thursday, 3 June 2010, at 4:36 p.m.
                    • 54S-63
                      Casper van der Tak -- Thursday, 3 June 2010, at 4:41 p.m.
    • Opening 54 rollout, XG 3-ply
      Nack Ballard -- Wednesday, 2 June 2010, at 7:48 p.m.
      • Opening 54 rollout, XG 3-ply
        Stick -- Wednesday, 2 June 2010, at 7:58 p.m.
        • Opening 54 rollout, XG 3-ply
          Nack Ballard -- Wednesday, 2 June 2010, at 8:07 p.m.
        • Opening 54 rollout, XG 3-ply
          neilkaz -- Wednesday, 2 June 2010, at 10:25 p.m.
          • Opening 54 rollout, XG 3-ply
            Nack Ballard -- Wednesday, 2 June 2010, at 10:58 p.m.
      • html tips: bullet lists
        KenB -- Wednesday, 2 June 2010, at 8:26 p.m.
        • html tips: bullet lists
          Stick -- Wednesday, 2 June 2010, at 8:41 p.m.
          • html tips: bullet lists
            KenB -- Wednesday, 2 June 2010, at 8:44 p.m.
        • html tips: bullet lists
          Nack Ballard -- Sunday, 6 June 2010, at 7:56 p.m.
          • html tips: bullet lists
            Daniel Murphy -- Sunday, 6 June 2010, at 8:11 p.m.
            • html tips: bullet lists
              Nack Ballard -- Monday, 7 June 2010, at 10:23 p.m.
              • html tips: bullet lists
                Daniel Murphy -- Monday, 7 June 2010, at 10:47 p.m.
                • html tips: bullet lists
                  Nack Ballard -- Tuesday, 8 June 2010, at 12:07 a.m.
                • html tips: bullet lists
                  Gregg Cattanach -- Wednesday, 9 June 2010, at 6:25 p.m.
                  • Thanks to you too, Gregg :) *NM*
                    Nack Ballard -- Thursday, 10 June 2010, at 2:55 a.m.
  • Opening 54 rollout, XG 3-ply
    David Rockwell -- Wednesday, 2 June 2010, at 7:21 p.m.
    • Opening 54 rollout, XG 3-ply
      Nack Ballard -- Thursday, 3 June 2010, at 11:38 p.m.
  • ...depending on whom I am playing ...?
    Klaus Evers -- Wednesday, 2 June 2010, at 9:36 p.m.
    • ...depending on whom I am playing ...?
      neilkaz -- Wednesday, 2 June 2010, at 10:34 p.m.
      • ...depending on whom I am playing ...?
        Nack Ballard -- Wednesday, 2 June 2010, at 11:29 p.m.
    • ...depending on whom I am playing ...?
      KenB -- Thursday, 3 June 2010, at 3:28 p.m.