Author: blass uri
Date: 02:16:47 06/07/99
Go up one level in this thread
On June 07, 1999 at 00:47:15, Christophe Theron wrote: >On June 06, 1999 at 14:22:49, blass uri wrote: > >> >>On June 06, 1999 at 11:10:38, Charlie GOLD wrote: >> >>> >>>On June 04, 1999 at 12:13:59, Eran wrote: >>> >>>>Since Junior5 does not have underpromotion code, I am wondering whether next >>>>version of Junior, probably Junior 6, will have underpromotion code, won't it? >>>>Well, basically all strongest chess programs should be 100% state of art, right? >>>>In other words, since Junior5 does not have underpromotion code, it cannot be >>>>100% state of art, is it? >>>> >>>>Eran >>> >>> I wonder how many people have Juionr 5.0 AND have yet to find out that it does >>>not have underpromotion codes. I did not know this and am grateful to have found >>>out. This is unpardonable for a top program to NOT have this. I reckon I, and >>>others, will have to test this on other programs from now on. charlie >> >>It is more easy to say that it should have underpromotion code then to do it. >>Amir Ban said that it is not a small change. >> >>I tested Junior5 in studies and found that it have also other tactical bugs(I am >>talking about cases that Junior can never see simple tactics that other programs >>have no problem to see). >> >>Fortunately Junior can practically play very well with these tactical bugs. >> >>I told amir ban about all the bugs that I found. >>I hope that he will be able to solve the problems but it is more easy to >>discover problems than to solve them. >> >>My version Junior5.4 suffers from most of the tactical bugs that I discovered in >>Junior5. >> >>I believe(based on my test games) that it is clearly better than Junior5 >>(the main change relative to Junior5 is in the evaluation function). >> >>Uri > > >Can you post some of these bugs? > >I bet other program will have them too... > > > Christophe Here are some examples for Junior5 tactical bugs 6q1/7k/Q7/8/7K/7B/8/7q w - - 0 1 Junior5 cannot see a simple stalemate combination 8/6p1/4pp2/2k1P2p/1pP1p2P/1K2P3/5PP1/8 b - - 0 1 Junior5 is choosing f5 after a short time(instead of the drawing fxe5) and believes that it is winning(only after f5 it understand that it was wrong). 8/8/8/8/8/8/pn2K3/B1k5 b - - 0 1 Junior5 plays Kb1 and does not find the winning move and it is not a problem of time. Uri
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