RE: [Bug-gnubg] Permit GNU to consider deliberate cube errors

[Albert Silver]

> -----Original Message-----
> From: Ian Shaw [mailto:address@hidden
> Sent: Tuesday, July 25, 2006 1:17 PM
> To: Albert Silver; Christian Anthon
> Cc: address@hidden
> Subject: RE: [Bug-gnubg] Permit GNU to consider deliberate cube errors
> 
> 
>  From: Albert Silver Sent: 25 July 2006 16:53
> 
> > > Albert Silver Sent: 25 July 2006 16:11
> > > > Ex:
> > > >
> > > > Move 1 - Correct Play: D/Take    Played: No double  My
> > Error: -0.048
> > > > Move 2 - Correct Play: D/Pass    Played: No double  My
> > Error: -0.178
> > > > Move 3 - Correct Play: too good  Played: D??/Take?? My
> > Error: -0.078
> > > >
> > > > In this case, the take was a (supposing) 0.560 mega blunder.
> > > > It couldn't be much less for taking a double in a Too
> > Good position.
> > > > In this case, since there was a blunderous Take, not only is the
> > > > wrong double deducted from the equity lost by the take, but the
> > > > immediately preceding errors I made by not doubling are
> > also added
> > > > up. This gives 560 - 48 - 178 - 78 = a single 0.256
> > blunder for my
> > > > opponent.
> > >
> > > This is simply wrong. Your opponent has made a 0.56
> > blunder, and must
> > > be charged for it irrespective of your errors.
> >
> > The point is to balance out my error with his. If in absolute
> > terms, I did indeed sacrifice equity, to gain further equity,
> > then that sacrificed equity shouldn't be ignored, should it?
> > Since the idea is to not be punished for this, the only
> > logical way I see is to deduce it from larger equity loss of
> > my opponent.
> 
> His error is still 0.56. There is more of a case for adjusting your
> error by:
> 
> -0.078 - -0.56 = +0.482 i.e. a positive blunder in your favour.

Hmmm... That works too if I understand what you mean. The idea as explained
is to not be punished for my error, as it wasn't a genuine error in the
classic sense, so if this still does that and properly dings the opponent,
then great.

> 
> Do you go back to Move 1 and also adjust the -0/048 error? If Move 2's
> correct action was ND/T, would move 1 still be re-evaluated? This is
> what I was referring to when I talked about taking future moves into
> account - future from the current move's POV.

No, as I said, it only takes into account *immediately* previous moves. If
Move 2 wasn't a mistake, then there are no previous moves to consider. That
is the line I draw that you asked about.


                                                Albert