[Bug-gnubg] Evaluation question

[progress]

I've found Gnu evaluates desperation situations very poorly.  
Specifically, if an opponent is rolling off and you are racing to get  
one piece off to avoid a gammon, Gnu mis-evaluates moves.

From this position:

 GNU Backgammon  Position ID: GreDA0DbbgcBAA
                 Match ID   : AQG7AAAAAAAA
 +12-11-10--9--8--7-------6--5--4--3--2--1-+     O: GammonBot_II (Cube: 2)
 | X  O             |   | O  O  O  O  O  O |     0 points
 | X                |   | O  O  O  O  O  O |     Rolled 66
 | X                |   | O     O          |
 |                  |   |                  |
 |                  |   |                  |
^|                  |BAR|                  |     5 point match, game 1
 |                  |   |                  |
 |                  |   |                  |
 |             X    |   | X                |
 |             X  X |   | X        X       |
 |             X  X | X | X        X  X    |     0 points
 +13-14-15-16-17-18------19-20-21-22-23-24-+     X: You


My moves of 63:13/10, 13/7, 31:8/5 7/6 and 65 10/4 8/3 were rated very  
bad, bad, and doubtful.

How can this be?

My sole goal at this point is to avoid a gammon (which I managed to  
do, btw). Any move I made other than the ones I did would have  
resulted in a gammon... (i got one piece off).

Any thoughts?

Thanks!
Michael McKinnon
(Match attached as jellyfish file)

You_vs_GammonBot_II_20130619181002415.mat
Description: Text document