Setting up GNU

Download and install the GNU backgammon program: Download GNU



Go to Settings
Rollouts
Change Trials to 15552
Under Truncation Uncheck Truncate Rollouts
Click Ok (everything should appear as it does in the screenshot below - except for the seed number which is fine)





Go to Settings
Rollouts
Select the First Play Both tab
Click Modify under the Move Filter
Select Two Ply
Under the first add extra change the number to 12
Change the moves within to .160
Click Ok





Go to Windows (If you have no Windows tab it's because you're on a newer build of GNU which is fine, you should have a View tab, under it you should make sure Analysis is checked)
Select Analysis



Click on Settings
Save settings



Once the rollout is finished click Ok
Select File
Save
Save it as a Game (and not a Position)
GNU will ask you if you want to overwrite the existing file, you select Ok



If you ever need to stop a rollout to reboot a computer or you're going away
for the weekend and you want to save it in case you come home and the electricity
has went off or whatever reason it's very simple and will have no affect on the results.
You simply hit Stop and then save it as per the instructions above.  To restart 
the rollout highlight the moves in the bottom left hand window (the analysis window)
and click Rollout just underneath, it should start right up again!