Author: Henk Bossinade
Date: 16:32:15 09/23/04
Go up one level in this thread
On September 22, 2004 at 17:15:38, Robert Hyatt wrote: >On September 22, 2004 at 15:57:34, martin fierz wrote: > >>i have a question about root move ordering: my engine currently generates a >>random root move order, and then orders every move that ever fails high to the >>top of the list, with previous best moves slowly going down in the list again. >> >>how do you order your root move list? by number of nodes to refute? or by >>something different? >> >>cheers >> martin > >Initially I do a q-search after making each root move, and use this score to >order the moves at the root. If I am pondering I make sure that the move from >the PV is put first of course. > >After each iteration, I re-order the move list keeping the best move first, and >ordering the rest based on the size of the sub-tree (number of nodes) each >produced when it was searched. I can't get Crafty to produce any output on this: [D] 8/8/pppppppK/NBBR1NRp/nbbrqnrP/PPPPPPPk/8/Q7 w - - mate in one Qh1
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