Scores from white's POV or from engine's POV?

Discussion of anything and everything relating to chess playing software and machines.

Moderator: Ras

What sign convention do you prefer for evaluations?

Positive scores mean that white is better
44
67%
Positive scores mean that the engine is better
22
33%
 
Total votes: 66

Tord Romstad
Posts: 1808
Joined: Wed Mar 08, 2006 9:19 pm
Location: Oslo, Norway

Re: Scores from white's POV or from engine's POV?

Post by Tord Romstad »

SzG wrote:For me it is extremely confusing when both engines show a positive score.
Confusing in what situation? When scores are from white's point of view, or when scores are from the engine's point of view? I get a bit confused in engine vs engine matches when scores are from white point of view, but I could probably get used to it.

However, your post and my reply to it show that we are both thinking from such an artificial and strange perspective that our opinions just don't count. Try to think about this from the perspective of an ordinary user: What does "both engines" mean? Most people have no idea what a chess engine is; they are just playing against (or analysing with) a chess program, without being aware of the distinction between the engine and the user interface. Even more technical users who understand that the chess engine is the part of the program that does the actual computations would usually be confused by the phrase "both engines". Both?? Isn't there only one engine??

People who run matches between chess programs is an extremely tiny minority among the people who use chess programs, and it is tinier still on handheld platforms where such matches must be played manually. What sign convention is least confusing when running computer vs computer games is therefore a very unimportant consideration when deciding what convention to use.

Tord
Cubeman
Posts: 644
Joined: Fri Feb 02, 2007 3:11 am
Location: New Zealand

Re: Scores from white's POV or from engine's POV?

Post by Cubeman »

Cubeman wrote:I like POV from White perspective.I have many PDA chess engines and have gotten used to that convention.It is good news that you intend to do this for the iphone as Chess Genius has left out a score option and just displays a main line.
I don't know what I was thinking when I posted this.Chess Genius does give a score and main line.It was the kNs that is missing on the iphone when compared to the PPC.But it displays the score from side to move perspective.
User avatar
sje
Posts: 4675
Joined: Mon Mar 13, 2006 7:43 pm

Re: Scores from white's POV or from engine's POV?

Post by sje »

Perhaps the best answer would be to let the user decide. This means that the GUIs in use along with the engines will all have to be changed to allow for protocol additions needed to consistently support user choice.

And there should be four choices:
  • White POV
    Black POV
    User POV
    Engine POV
Dirt
Posts: 2851
Joined: Wed Mar 08, 2006 10:01 pm
Location: Irvine, CA, USA

Re: Scores from white's POV or from engine's POV?

Post by Dirt »

sje wrote:Perhaps the best answer would be to let the user decide. This means that the GUIs in use along with the engines will all have to be changed to allow for protocol additions needed to consistently support user choice.

And there should be four choices:
  • White POV
    Black POV
    User POV
    Engine POV
Tord's premise from the beginning is that more options in this type of ap are highly undesirable. I think he's right, and any choice at all is better than having options.