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Subject: To Christophe Theron - multivariation mode in CT15 is buggy.

Author: George Sobala

Date: 12:37:50 09/29/02


Christophe

I think the multivariation setting of ChessTiger 15 is buggy. Here is what
happens.

What I did:

- I loaded a PGN of a game to analyse it
- I clicked on the '+'  button in the engine window three times to bring up 4
multi-variations
- I clicked on the 'brain' icon to turn analysis mode on
- I stepped through the game looking at ChessTigers analysis

What happened:

When it was White's move I saw 4 variation, with up-to-date analysis as time
progressed (i.e. all reached 10 ply together, then 11 ply etc etc). This is how
I would expect it to work.

However when it was Black's move I only saw variations added if they were better
than the previous best move: e.g. the top variation would be the up-to-date
analysis of the best move for example to 13 ply, but the second line could
contain only the move rejected at 6 ply, never subsequently updated, and the
third and fourth lines never filled in at all in some cases.

I hope I have explained this well enough

Great engine though!

George Sobala



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