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Madison Rd 7

Posted By: Matt Cohn-Geier
Date: Monday, 28 September 2009, at 6:03 p.m.

In Response To: Madison Rd 7 (Matt Cohn-Geier)

I think I may have thought about this one, but not for very long. As Neil points out I am down 73 pips in the race and at this score I get gammoned most of the time when I lose (I can easily lose a running gammon even if I come in right away...and I don't have to do that well).

GNU tried to hammer me with a .174 blunder here. I continue my quest of trying to teach it how to play backgammon, though it is my worst student and never really learns anything.

I can see this possibly being a take since there are two points open in front of me but I have no problem passing and given the same score & situation I'd pass again.

The score (after 0 games) is: White 0, Blue 3 (match to 9 points)

Move number 2: White on roll, cube decision?

White	94
Blue	167
Position ID: zM5gAEcbbk8IAA Match ID: MAEgAQAAGAAA

• White doubles

Cube decision
Rollout cubeless equity		+0.5047	(Money: +0.4859)
Cubeful equities:
1.	Double, take	+0.9693
2.	Double, pass	+1.0000	+0.0307
3.	No double	+0.7143	-0.2550
Proper cube action:		Double, take
Rollout details
Win W g W bg Lose L g L bg Cubeless Cubeful Centered 1-cube 0.6272 0.2920 0.0031 - 0.3728 0.0617 0.0019 +0.5047 +0.7143 Standard error 0.0008 0.0009 0.0001 - 0.0008 0.0006 0.0001 0.0022 0.0047 Player Blue owns 2-cube 0.6454 0.3178 0.0036 - 0.3546 0.0595 0.0024 +1.1832 +0.9693 Standard error 0.0008 0.0010 0.0002 - 0.0008 0.0007 0.0002 0.0047 0.0058
Full cubeful rollout with var.redn.
5184 games, Mersenne Twister dice gen. with seed 865123362 and quasi-random dice
Play: 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 12 more moves within equity 0.2
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]

Messages In This Thread

• Madison Rd 7
  Matt Cohn-Geier -- Sunday, 27 September 2009, at 5:34 p.m.
  • Madison Rd 7
    Rich Munitz -- Sunday, 27 September 2009, at 6:19 p.m.
  • Madison Rd 7
    Coolrey -- Monday, 28 September 2009, at 5:19 p.m.
  • Madison Rd 7
    neilkaz -- Monday, 28 September 2009, at 5:43 p.m.
  • Madison Rd 7
    Matt Cohn-Geier -- Monday, 28 September 2009, at 6:03 p.m.
    • XG 3 ply eval
      neilkaz -- Monday, 28 September 2009, at 6:16 p.m.