Author: Dann Corbit
Date: 20:24:15 02/15/00
Go up one level in this thread
On February 15, 2000 at 23:06:03, Andrei Fortuna wrote: >On February 15, 2000 at 22:04:07, Dann Corbit wrote: > >>Now that I see how to use it, I like your program a lot. > >Thanks :) > >>I do see a lot of >>error messages about null pv's (for example): >[SNIP] > >They shouldn't be there, I'm rewriting the Search(...) function those days to >eliminate such bugs, also to improve game tree size (trees were way too big) > >>And also, I have a feature request to correct your ce for checkmates (at least >>the ce that you report). From the PGN Standard by Steven J. Edwards: >>[SNIP] >>You seem to be using a long string of 9's (not without precedent -- e.g. Rebel >>and some others do the same thing): >>[SNIP] > >not a string of 9's but the integer values +/- 99999999 >in other words INF-1/-INF+1 >I wanted a very large integer so no positional score could be greater >I'll consider modifying it according to your request. That would be nice. It's a bit annoying to modify the output for every program that comes along if I want to use it. >>All in all, I like your engine very much. Hmm... a second feature request >>(which you are free to ignore just like the first one): >>Create EPD analysis in standard EPD format. It is so much more useful that way. > >I'm not sure I understand this, perhaps you could give me an example of what you > mean by that ? Consider crafty, which has EPD code written by Steven J. Edwards himself... Input: 8/pp1p1p2/1p1P1P2/k7/8/1p4p1/1P4PP/2K5 w - -4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - Output: 8/pp1p1p2/1p1P1P2/k7/8/1p4p1/1P4PP/2K5 w - - acd 22; acn 268620232; acs 1501; ce 257; pv h4 b5 h5 Ka4 h6 a5 h7 b4 h8=N b6 Kd2 Kb5 Nxf7 Kc5 Ke3 a4 Ne5 Kxd6 Kf4 a3 f7 Ke7 Kxg3 axb2; 4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - acd 15; acn 231452379; acs 1501; ce -22; pv Qd5 Rxe6 Bd1 Kf7 Bb3 Qc6 Qxc6; Ref: http://www.very-best.de/pgn-spec.htm#16. See section 16.2
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