Author: Vladimir Medvedev
Date: 08:39:18 07/02/03
It is written on Ed's page: "Whenever REBEL gets a fail-low or fail-high at the root position (we are back at ply one), REBEL doesn't immediately opens the entire alpha or beta window, instead of that it tries a new window of 2.00 and only then when REBEL is faced again with a fail it opens the complete (corresponding) window. The 2.00 window will do for most of the positions when a fail occurs, that's the tought behind. " Why does he expand window only in the root node? Won't this technique work in inner nodes as well? What is the critical difference between position at ply=0 and ply=1,2,3 ?
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