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Can Anybody Here

Posted By: Rich Munitz
Date: Tuesday, 11 January 2011, at 5:11 a.m.

In Response To: Can Anybody Here (Bob Koca)

Since B will also be redoubling, it can be tightened further:

Match to 2^(n+1) points. A is winning 2^n to 0 and is holding a 2^n cube in a gin race.

Well, it still seems like cheating to be considering the possibility of someone taking in a gin race. But maybe it doesn't have to be gin. The scores described is as lopsided as it gets. By taking, B can reship to 2^(n+2) and play for the match. Meanwhile, B only stands to lose only 1 point more than if he passes. So the takepoint can get arbitrarily low and a near-gin position could probably still be taken.

Here is a position that satisfies all criteria imposed so far and hits the bulls eye. It is not gin, not a bear off as the player on roll may not be able to bear off a checker, and not an invalid cube (actually not a cube at all as XGR+ evaluates the position as ND/T). I didn't bother to roll it out, but regardless, I am sure the position could be played with to find something else extremely close based on rollouts.

is Player 2 score: 32 pip: 28

65 point match

pip: 101 score: 0 is Player 1

XGID=-A-AA-DBBBAA-----a-----fh-:5:-1:-1:00:0:32:0:65:10

on roll, cube action?

Analyzed in XG Roller+
Player Winning Chances:	99.99% (G: 6.65% B: 0.00%)
Opponent Winning Chances:	0.01% (G: 0.00% B: 0.00%)
Cubeless Equities
No Redouble:	+1.000
Redouble:	+1.000
Cubeful Equities
No Redouble:	+1.000
Redouble/Take:	+1.000 (0.000)
Redouble/Drop:	+1.000 (+0.000)
Best Cube action: No Redouble / Take

eXtreme Gammon Version: 1.21, MET: Rockwell-Kazaross

Messages In This Thread

• Can Anybody Here
  David Startin -- Monday, 10 January 2011, at 12:38 a.m.
  • Can Anybody Here
    Timothy Chow -- Monday, 10 January 2011, at 12:49 a.m.
    • Can Anybody Here
      David Startin -- Monday, 10 January 2011, at 1:09 a.m.
    • Can Anybody Here
      Bob Koca -- Monday, 10 January 2011, at 6:19 a.m.
      • Can Anybody Here
        Rich Munitz -- Monday, 10 January 2011, at 6:48 a.m.
        • Can Anybody Here
          Bob Koca -- Monday, 10 January 2011, at 7:24 p.m.
          • Can Anybody Here
            Bob Koca -- Monday, 10 January 2011, at 7:28 p.m.
            • Can Anybody Here
              Rich Munitz -- Tuesday, 11 January 2011, at 5:11 a.m.
              • Can Anybody Here
                Rich Munitz -- Tuesday, 11 January 2011, at 5:24 a.m.
              • Can Anybody Here
                Bob Koca -- Tuesday, 11 January 2011, at 8:37 p.m.
  • Can Anybody Here
    Rich Munitz -- Monday, 10 January 2011, at 6:29 a.m.
    • Can Anybody Here
      David Startin -- Monday, 10 January 2011, at 3:23 p.m.
      • Can Anybody Here
        Stick -- Monday, 10 January 2011, at 5:14 p.m.
        • Can Anybody Here
          Timothy Chow -- Monday, 10 January 2011, at 5:21 p.m.
      • Can Anybody Here
        Bob Koca -- Monday, 10 January 2011, at 7:27 p.m.