Author: Vincent Diepeveen
Date: 11:29:19 07/28/02
Go up one level in this thread
On July 28, 2002 at 12:51:33, Robert Hyatt wrote: >On July 28, 2002 at 12:47:36, Robert Hyatt wrote: > >>On July 28, 2002 at 02:48:28, Vincent Diepeveen wrote: >> >>>On July 27, 2002 at 23:10:10, Robert Hyatt wrote: >>> >>>Oh that position, yeah there the Deep Blue search system >>>which are focussed upon mate threats, they should >>>work well there. >>> >>>Crafty is a bad compare here. >> >>How long does it take your program to get +2.5??? >> >>Best so far is Hiarcs at several minutes... >> >> >> >> >>> >>>>On July 27, 2002 at 19:57:39, Vincent Diepeveen wrote: >>>> >>>>>On July 27, 2002 at 09:02:13, Alvaro Jose Povoa Cardoso wrote: >>>>> >>>>>what the hell do you talk about? >>>> >>>> >>>>He is talking about the Nf6+ move crafty played against chessmaster in >>>>the KKUP tournament a few years ago. Crafty saw a draw score after a 13-14 >>>>ply search. Hsu sent me some brief output from Deep Blue Junior that showed >>>>that in under 2 minutes, it saw our score as +2.5... Several moves into the >>>>game Crafty failed high and finally agreed. DB Jr saw it very quickly while >>>>everyone else is taking quite a long time compared to their two minutes. Note >>>>that this was DB Jr model 1, not the 1997 version... >>> >>>r1b1r1k1/1q3ppp/ppn5/2bNp3/P4B2/5Q1P/BP3PP1/R2R2K1 w - - 2 19 >>> >>>DB jr is just as good as the 97 version, considering their parallel >>>speedup extrapolation. >>> >>>>>I can show you a bunch of bad moves DBII made against kasparov >>>>>which no other computer makes, but i don't see a single good >>>>>move DB makes which todays software doesn't find. >>> >>>>This was simply an attempt to compare their tactics to ours. At least in >>> >>>To that of crafty of course ,which isn't doing many checks in qsearch >>>nor extending mate threats a lot. nor extending singular stuff. >>> >>>in this case the system as they describe how they extend works great >>>of course. I bet Brutus will find this easily too. >>> >>>BTW did Hsu give an output? > > >Yes he sent me output. As I mentioned, the problem is trying to find it >in my email backups. That was back around 1996 or so, buried an hundreds >of thousands of emails... Not easy to find. that would be in itself weird because the game with Nf6 was played januari 99 or so. Note that diep sees very quickly a draw in deepblueII-kasparov for the move Qe3. In fact it doesn't play the blunder Kf1?? from deep blue but plays kh2! instead within tournament time of 40 in 2!! Best regards, Vincent > >>> >>>because all the things i hear is always like: "he told me". >>>I want to see outputs :) >>> >>>it could be true he just made a few moves and then got the score. >>>i remember an analysis of it a few years ago. if you give a big patzer >>>score for king safety you sure can get +2.xx there, otherwise it's a >>>pretty deep combi to see you win a piece on g6 using a pin of a pawn h4 h5. > >He got the +2.5 while searching the given position. His PV started with >Nf6+ and the score was +2.5 before 120 seconds had gone by. I don't remember >when it failed high, I just remember the +2.5 took under two minutes. Crafty >searched to 14 plies on that move in 1996 and had 0.00. It had 0.00 for >another couple of moves before it started failing hi as Hsu promised... > > > >>> >>>>this position, theirs is better. >>>> >>>> >>>> >>>>> >>>>>>Sorry to return to this old post by Dr. Robert Hyatt, but I red it a little >>>>>>late. >>>>>>I know this is just one position, but I was wondering what conclusions could we >>>>>>take from this test? >>>>>>It seamed to me that current programs were a little slow in finding the winning >>>>>>score (not the move). >>>>>> >>>>>>Any comments? >>>>>> >>>>>>Best regards, >>>>>>Alvaro
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