Author: Jeremiah Penery
Date: 10:34:10 10/11/02
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On October 11, 2002 at 13:10:23, Vincent Diepeveen wrote: >On October 11, 2002 at 10:44:37, Jeremiah Penery wrote: > >>On October 11, 2002 at 10:32:24, Gian-Carlo Pascutto wrote: >> >>>On October 11, 2002 at 09:41:13, Uri Blass wrote: >>> >>>>It evaluates the position as clear advantage for white(I think that white is >>>>winning and h3 cannot save black). >>> >>>IIRC, h3 forces a draw. >> >>It becomes a repetition draw. DT/DT2 could not recognize repetition draw in the >>hardware, so it's no surprise at all they couldn't see this. > >No it's not a repetition draw. > >It's simply winning a pawn with black by force by a check at the >end after which the e5 pawn is hung. > >Then you get left with KRP KRP which is a trivial 0.00 score. > >However, if you don't see that line, which is just 12 ply, then >you have of course a problem. > >with 3 minutes a move and millions of nodes a second DT couldn't see it. > >Repetition has nothing to do with it at all. Try turning off repetition detection with DIEP on this position. I'm interested to see how much it will change the output. There are a lot of repetition lines that can come from this. For example: 1. ...h3 2. Rxh6 a3 3. Rxh3 Ra4 4. Rh8+ Ke7 5. Rh7+ Kd8 6. Rd7+ Ke8, etc. If you don't detect repetition, you might think white is winning in this line. If this gets backed up to the root, it could be enough to make the program think h3 is a bad move.
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