Author: Vincent Diepeveen
Date: 16:37:47 08/17/00
Go up one level in this thread
On August 17, 2000 at 18:22:37, Dann Corbit wrote: >On August 17, 2000 at 18:08:36, Vincent Diepeveen wrote: > >>On August 16, 2000 at 18:41:59, Lars Sandin wrote: >> >>>On August 16, 2000 at 17:48:20, Dann Corbit wrote: >>> >>>>On August 16, 2000 at 17:35:44, Jari Huikari wrote: >>>> >>>>>On August 16, 2000 at 17:23:33, Dann Corbit wrote: >>>>> >>>>>>Took 2 seconds to solve the hardest two. The other took one second. The >>>>>>machine was not a very fast one. On one of the fast machines, it would probably >>>>>>do a lot better. >>>>> >>>>>Was the program searching especially for mates? >>>> >>>>Chest 3.19 by Heiner Marxen (the best mate solver on the planet by a landslide). >>>> >>>>>How much time would need >>>>>to find the moves, if these positions were in normal game? >>>> >>>>Infinite. It does not play chess, since it's just a mate solver. On the other >>>>hand, on a multithreading machine, you could have the mate solver buzzing away >>>>in its own little thread while your chess engine is playing chess in a normal >>>>fashion. Then, if the mate solver sees something interesting, it could report >>>>it to the chess engine. It is actually an idea I have been entertaining, and >>>>incredibly simple to implement. >>> >>>How fast (approx.) does the program see longer mate-sequences; for instance in a >>>normal game - a mate in about 10 moves? >> >>Oh well it's a mate only searcher. Let's give it a huge mate >>(which a selective searcher could find real quick btw) >> >>8/Bk3p1p/1P3p2/KP2n2p/1P1p4/1Pp2p2/B1P5/7B w - - >> >>If it finds a mate here, please post the line, >>as i don't have the winning line for this position. I know how to win >>it, but DIEP will not soon see a mate here, stack problem... >>...but i like to keep my mating probs complete. > >That's not a mate in 10. It is more than 20 ply to any mate from that position. Oh well, some selective searchers have no problem finding this mate, though it's way more as 20*20 ply :)
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