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Subject: Question for Ed Schröder

Author: Alvaro Jose Povoa Cardoso

Date: 00:50:21 07/07/05


Hi, I'd like your opinion on a modification to the first reduction explained on
your webpage.
The reduction reduces a full ply if we are behind alpha by a certain amount.
Also you make sure you aply this only once in every possible line in the tree.
What I propose is instead of a full ply reduction to reduce say 1/16th of a ply
and alow it to kick in more than once in every line in the tree.
If we do it like you explain and we are at a line with a sacrifice the engine
will reduce a full ply and might not get it.
But if we do it like I explained we still make a reduction on a line with a
sacrifice but it will be a 1/16th reduction and the engine might see the
sacrifice is sound.
Now I could be wrong, that's why I would like your thoughts on this.

Note: I know you use 1/4 of a ply as the smallest fraction possible to do
reductions/extensions,  so you might need to expand this to 1/16th or higher.

Best regards,
Alvaro Cardoso




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