[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

BGonline.org Forums

Help requested for prime versus prime cube actions

Posted By: Phil Simborg
Date: Wednesday, 8 February 2017, at 4:09 p.m.

In Response To: Help requested for prime versus prime cube actions (Timothy Chow)

I learned from Stick that most "mornal" primes v primes are takes. What constitutes "normal" in a general sense is that you can see some light if you take...you can see a way that your prime might hold up longer and he might crack or you might escape, and you don't see that you get gammoned too much (over 16 percent net gammons). Why 16 percent? Because if the game is normal you probably win at least 30 percent and if your net gammons are 16 percent you will have a take using a gammon adjusted takepoint approach. Now, if it is not "normal" and you can't win 30 percent, you might still have a take if gammons are low...maybe one checker back for example.

So if we start with the assumption that both positions have some play for the taker, and that it is a take, then how do we know when to double?

According to John O'Hagan (O'Hagan's Law) we should double if we have a net of 25 percent market losers. Of course it matters how much you lose your market by and how bad your bad sequences are, but it's a pretty good rule for prime v prime positions.

So that would be my approach, and in both positions I take, and I would redouble the first one, as I can see losing my market on the next roll more than 25% (combined with what happens when both dance), and I would not double on the second position, as it looks like it's still a take most of the time.

Messages In This Thread

 

Post Response
Your Name:
Your E-Mail Address:
Subject:
Message:

If necessary, enter your password below:

Password:
 

 

[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

BGonline.org Forums is maintained by Stick with WebBBS 5.12.