It is generally not advisable to compare evaluations using different parameters. This is particularly true for gnubg which has an odd-ply/even-ply problem. In short, you should evaluate all the moves you wish to compare at the same ply.
Christian. On Mon, Mar 2, 2009 at 8:29 PM, Bob Hart <[email protected]> wrote: > Hi- > > I would like to understand how to interpret evaluation results presented > with different plies and out-of-order equities. > > In reviewing the results below, I would ideally want to conclude "at a > glance" that gnubg evaluates 24/21 13/9 as the best play, because it is at > the top of the list. It appears, however, that the moves are not sorted > primarily in equity value, but rather by ply-value and then by equity value. > So is gnubg saying that the best move is the first one, 24/21 13/9, or is > the best move the third one, 24/20 13/10, which has the best equity? > > 1 Cubeful 5-ply -0.199 24/21 13/9 > 2 Cubeful 4-ply -0.163 +0.036 13/10 13/9 > 3 Cubeful 2-ply -0.155 +0.044 24/20 13/10 > 4 Cubeful 2-ply -0.182 +0.017 24/21 24/20 > 5 Cubeful 2-ply -0.217 -0.018 13/9 8/5 > . . . Many more moves, all with worse equity . . . > > Thanks for any insight. > > -Bob > > > > > > > > _______________________________________________ > Bug-gnubg mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/bug-gnubg > _______________________________________________ Bug-gnubg mailing list [email protected] http://lists.gnu.org/mailman/listinfo/bug-gnubg
