Author: Michael Chaly Date: Sat Oct 9 09:59:33 2021 +0200 Timestamp: 1633766373
Reduce more if multiple moves exceed alpha
Idea of this patch is the following: in case we already have four moves that exceeded alpha in the current node, the probability of finding fifth should be reasonably low. Note that four is completely arbitrary - there could and probably should be some tweaks, both in tweaking best move count threshold for more reductions and tweaking how they work - for example making more reductions with best move count linearly.