Re: [Bug-gnubg] analysis feature request

[Jim Segrave]

On Thu 20 Mar 2003 (08:02 +0000), Joern Thyssen wrote:
> On Wed, Mar 19, 2003 at 06:51:45PM -0500, Hanley Hayes wrote
> > I spend a disproportionate amount of time in Analysis trying to improve my 
> > play.  For example, if on move #x I had played the second or third best 
> > move and ultimately lose the game or even win a game that maybe could have 
> > been a gammon, I will often go back to move #x and try the best move and 
> > see how I fare from there (I realize that from then on, both gnubg and 
> > myself get new rolls of dice, but still it is fun and enlightning to see if 
> > by making the best move, it improved my overall lot).  Sometimes I will 
> > return to a difficult positions and play it over several times from that 
> > point to get a feel for what I'm up against (I guess you could say I like 
> > to do manual roll-outs!)
> > 
> > What gnubg analysis often will report however, is that I either a) doubled 
> > when it wasn't warranted, b) should have doubled, but didn't, c) accepted a 
> > double that I shouldn't have, or d) passed on a double that I should have 
> > accepted.  In each of these cases I would like to resume play from that 
> > move, playing properly, cube-wise.  In other words, if I should have 
> > doubled, I would like to double and go on.  (I  realize that in some cases 
> > this might immediately end the game, as would be the case if gnubg decided 
> > to pass on the double, but still it would allow me to continue many games 
> > 'more like an world class player' were playing my side.)  gnubg does not 
> > allow me to 'correct' this player error and continue, or at least I haven't 
> > figured out how.  Is this possible?
> 
> I guess you're asking for a "play from here"-feature? 
> 
> Just click the move in the move list and roll dice, accept cube, move
> something different or whatever.  Remember to save the original match
> since all moves after the move in question will be lost.
> If you click on a computer move you'll have to press the "Play" button
> to force the computer to play.

It may not be obvious to new users that you can go to the point before
the dice were rolled in the game window. If you simply click on a
move, you go to the point where the dice have been rolled and hence
can't double. If you click the green left arrow to go to the other
player's previous move, then click the green right arrow to go back to
yours, you are then at the point *before* the dice were rolled.

Would it also be a feature to save the RNG seed (where it's reasonable
to do so) at the start of the game and allow an option to replay the
game with the same rolls (it's not that hard to figure out how many
interations of the RNG were made to reach a particular move in a
game), so that one could re-play a game with the exact same roll
sequence? 

-- 
Jim Segrave           address@hidden