Oink Oink! (database)
Posted By: Douglas Zare In Response To: Oink Oink! (smcrtorchs)
Date: Saturday, 25 May 2013, at 1:25 p.m.
In Response To: Oink Oink! (smcrtorchs)
Zare Race Database includes an effective gammon count database out to the midpoint. I think this is relevant for the second position, although it has a checker on the 16 point. I advanced that to the midpoint, but moved a checker from the 6 to the 9 point which will be played 9/6 in place of 16/13. This doesn't let you compare plays which leave the checker on the 16 point, but that looks bad to me in the second position. Here are the top 5 most efficient plays for saving the gammon:
25.570: 16/7 8/5
25.640: 16/13 10/4 8/5
25.876: 16/13 10/7 8/5(2)
25.907: 16/10 8/5(2)
Since white has close to a 4-roll position, we are an underdog to save the gammon, but not terribly desperate. So, I think the most efficient play should be right.
Unfortunately, the database doesn't extend back to positions where you leave a checker on the 16 point, which feels right for the first position. 19/10 13/10 is the most efficient of the plays which start with 19/13, beating 19/10 8/5 by 0.114 effective pips.
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