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Subject: Re: ChessPartner and ICC - Simply unreal - Lex Loep should read this!

Author: Lex Loep

Date: 12:56:46 02/06/05

Go up one level in this thread


On February 06, 2005 at 15:21:03, Gian-Carlo Pascutto wrote:

>On February 06, 2005 at 15:15:29, Peter Skinner wrote:
>
>>http://www.chessclub.com/help/new-features
>>
>>1-Oct-2004: Exploiting having high lag by moving before your seeing your
>>opponent's move no longer works; you'll just get "It's not your turn". That
>>trick was never reliable anyway, since you had to hope that your move would
>>reach the server after your opponent's move did (as well as hoping that your
>>move turned out to be legal, not to mention good). This change simplifies the
>>client-server protocol with respect to timestamp and moves, and should stop a
>>problem we've seen occasionally where time isn't deducted from the clock
>>correctly. Clients with a true "premove" feature are not affected.
>>
>>Unfortunately they are not willing to fix it for the Chesspartner interface, as
>>it reduces the chances of the lag cheating working.
>>
>>Someone on either end has to fix this... it is simply the moves are coming way
>>to fast. Even the move delay option is not working. I have set it as high as
>>50ms with no success.
>
>This makes no sense. ChessPartner *can't* move before it sees the opponents
>move. It's not a human that can guess what the opponent is going to play...
>

Thats right, CP only sends the move AFTER it has received the opponents move,
this can be simply proved by looking at the log files. Its ICC that then comes
back with the "Not your turn error".
To me its clear where the problem is. The delay is just an attempt to workaround
the problem.
Like mentioned before, I have never been able to reproduce the problem myself.
It also seems to happen with a few people. Perhaps they have very fast PC's.
Suggestion for now is to try a even higher delay, something like 500 ms.

Lex

>Either this is not the problem or ICC has severe bugs.
>



>--
>GCP



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