Author: Sune Fischer
Date: 02:49:51 02/18/03
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On February 17, 2003 at 04:22:49, Daniel Clausen wrote: >On February 16, 2003 at 20:12:34, Nathan Thom wrote: > >>Hi all, >> >>Just wondering what the standard is for displaying output from an engine. ie >>does the node counts include leaf nodes, q nodes etc? does the nps include these >>aswell? Ive often seen depths displayed as X/Y is this the iterative deepening >>depth/max depth searched or something? > >There's no standard really. > >When it comes to the score, I always encourage people to use something like "1.4 >for Black" instead of "-1.4". Although I'm sure everyone knows which engines X >use + for white when analyzing a game, but use + for side-to-move when playing >the game. :) I mean it's really obvious, isn't it? :) No it is not :) I always preach for the other convention. There are several reasons to do it with respect to color. First of all you are consistent, you have the same convention whether or not the engine is analyzing or playing a game. Secondly you can compare scores easier, both engines will show the same sign if they agree on the position. To compare their scores otherwise you need to first do a change in sign. I find that to be incredibly confusing. Third, when you play bullet games the sides change so quickly that all you see is a score flipflopping from -5 to 5 to -5 to 5 and it does so really fast. You have no chance of seeing who is winning and losing without looking at the board, but even there the pieces might move so fast you can't see a thing. In this case the scores are useless if they don't show with respect to color. >For fail-highs and fail-lows there's the common "++" and "--", but there's also >engines which use something else. I think Gaviota uses smileys for this. :) "++" is a checkmate, so that would be bad to use for a fail high (although it probably is a really good move). I think some use "!". -S. >Sargon
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