News:

Become a VIP .....appreciate Fibsboard? don't like ads, Y not http://www.fibsboard.com/donate.php

Main Menu

Game 2 Move 1 Forum to play 6-2

Started by ah_clem, January 06, 2010, 12:52:00 PM

Previous topic - Next topic

ah_clem


ah_clem

Spoiler

I think hitting on the bar point is a must. It slots a valuable point, knocks our opponent off balance by putting him on the bar, and prevents him from making that valuable point.   

Where to play the 2?

Shuffling the backmen doesn't gain us much - we've already split.  Continuing on to the 5 is poor - without a builder around it's a fool's errand.   Slotting the 4 is unnecessarily risky.

That leaves bringing down a builder with 13/11. 

13/7* 13/11


[close]

dorbel

Spoiler
Of course we hit, but I am not convinced that 13/11 is the best 2. Our only good sixes next turn will be to cover or hit again, depending on what Red throws. We don't want to have to break the midpoint for that, so a builder there is very useful. I like 23/21, improving our coverage of Red's outfield and slotting a good anchor. 
[close]

ah_clem

expurgated bot results.  Since we have a cube decision to make, these results only include relative equity.

Spoiler


Hitting is clearly best.  But bringing down the bulider is inferior to either of the backmen plays.  Let's see if I can understand why:

13/11 leaves another blot - granted, facing an open board that shouldn't make much of a difference, but a blot is a blot.  The real reason as I see it is that we get hit on the bar a lot (15/36) and when we do having an advanced anchor-point already slotted makes it more likely that we'll make a good anchor.  Presumably, this outweighs the covering ability of the builder.  And it seems obvious that if we're going to slot an anchor point, we might as well slot the better one, thus 23/21.

BTW, I ran a rollout, but gnubg lost it for some reason.  The results were not that different, so I'm not going  to wait for another rollout.  Here's the 2-ply analysis.



   1. Cubeful 2-ply    23/21 13/7*                  Eq.:  xxxx
     
   2. Cubeful 2-ply    24/22 13/7*                  ( -0.036)
     
   3. Cubeful 2-ply    13/11 13/7*                  ( -0.060)
     
   4. Cubeful 2-ply    13/7*/5                      ( -0.080)
     
   5. Cubeful 2-ply    13/7* 8/6                    ( -0.095)
     
   6. Cubeful 2-ply    13/7* 6/4                    ( -0.190)
     
   7. Cubeful 2-ply    13/5                         ( -0.199)
     
   8. Cubeful 2-ply    24/18 23/21                  ( -0.219)
   
       2-ply cubeful prune [world class]


[close]

diane

 :veryhappy: :veryhappy:

I love being right, even when I am in a minority with dorbel ;)
Never give up on the things that make you smile

PersianLord

Spoiler
13/11-13/7* strips the mid point TOO early in a game that almost nothing is yet clear.
[close]
The leftist's feelings of inferiority run so deep that he cannot tolerate any classification of some things as successful or superior and other things as failed or inferior. This also underlies the rejection by many leftists of the concept of mental illness and of the utility of IQ tests.  - T.K