The chess tactics server program has a serious bug

Discussion of chess software programming and technical issues.

Moderator: Ras

Uri Blass
Posts: 10825
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

The chess tactics server program has a serious bug

Post by Uri Blass »

see
http://chess.emrald.net/ctsActTact.php?Order=Rating

TheScapestrate has 100% result based on the statistics but when you look at TheScapestrate's details you can see that he has 8 nightmares out of 26 tries and only 18 trophies.

18/26 is clearly less than 100% and non cosistent results prove that the program has a bug.

My question is if somebody can help to detect the bug in order to fix it.

People claims that TheScapestrate cheated but cheating alone cannot explain the results.

cheating by using a program to analyze the positions can explain 100%
results but cannot explain 100% result with 8 failures out of 26.

I am even not sure if TheScapestrate cheated and maybe other results also are not correct.

I decided to start discussion here because it is related to programming (program that calculates rating of chess solvers) and I am curious what happened(did not get an explanation how it is possible to do it in other discussions and people only claimed that TheScapestrate cheated with no evidence and maybe it is somebody else and the same person can also change the details of other people to illogical results).

Uri