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Interesting prime v prime position

Posted By: niuniuch
Date: Friday, 27 March 2015, at 8:53 a.m.

In Response To: Interesting prime v prime position (John O'Hagan)

This reminds me of a position from Magriels Backgammon that was revisited by Jeremy Bagai, except black didn't have an anchor there, only two blots. I wonder if a similar reasoning applies here also. Let's do the numbers.

If we play 6/4 6/2* pretty much all blacks entering numbers are very bad for him, but that leaves 16 shots where he stays on the bar and we are forced to go forward, probably covering the blot and maybe even breaking the 6 prime. If we play 8/4, any roll without a 6 forces him to break the prime, so he has only 11 good numbers, which that would make 8/4 by far the better 4. With the 2 I would play 6/4 which forces black to put me on the bar with the 6s making them a mixed blessing really. After any 6 but 61 we'll still probably be favourites to keep our prime longer than black.

MY play is 8/4 6/4.

Messages In This Thread

• Interesting prime v prime position
  John O'Hagan -- Thursday, 26 March 2015, at 6:29 p.m.
  • Interesting prime v prime position
    RealNick -- Thursday, 26 March 2015, at 6:42 p.m.
  • Interesting prime v prime position
    Mike Clapsadle -- Thursday, 26 March 2015, at 6:55 p.m.
  • Interesting prime v prime position
    Bill Calton -- Thursday, 26 March 2015, at 7:28 p.m.
    • Interesting prime v prime position
      Mike Clapsadle -- Thursday, 26 March 2015, at 7:39 p.m.
      • Interesting prime v prime position
        Bill Calton -- Thursday, 26 March 2015, at 7:46 p.m.
        • Interesting prime v prime position
          Bob Koca -- Thursday, 26 March 2015, at 9:25 p.m.
          • Interesting prime v prime position
            Bill Calton -- Thursday, 26 March 2015, at 10:50 p.m.
    • Interesting prime v prime position
      Chuck Bower -- Friday, 27 March 2015, at 4:54 p.m.
  • Interesting prime v prime position
    Keene -- Thursday, 26 March 2015, at 10:10 p.m.
  • Interesting prime v prime position
    christian munk-christensen -- Thursday, 26 March 2015, at 10:43 p.m.
    • Interesting prime v prime position
      Casper Van der Tak -- Friday, 27 March 2015, at 12:46 a.m.
    • Interesting prime v prime position
      winfox -- Friday, 27 March 2015, at 2:24 a.m.
  • Interesting prime v prime position
    Bob Koca -- Friday, 27 March 2015, at 12:03 a.m.
  • Interesting prime v prime position
    Timothy Chow -- Friday, 27 March 2015, at 2:43 a.m.
  • Interesting prime v prime position
    neilkaz -- Friday, 27 March 2015, at 2:57 a.m.
  • Interesting prime v prime position
    niuniuch -- Friday, 27 March 2015, at 8:53 a.m.
  • OTB, RO, & comments
    John O'Hagan -- Friday, 27 March 2015, at 8:12 p.m.