Author: Heiner Marxen
Date: 06:10:06 04/02/04
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On April 01, 2004 at 07:57:27, Bernd Nürnberger wrote: >On March 31, 2004 at 12:35:21, Renze Steenhuisen wrote: > >>>(1) >>>I recognized that a different move ordering delivers very alternating >>>results in my alpha beta search. (I implemented null move, pv search, >>>mvv/lva, some history moves, transposition table, quiescence search ...) >>>Is this a bug or is this a normal behaviour? >>>For example, with 3 history moves (on initial position) i get: >>>[...] >>> 8. 0:01.12 993512 0.00 Nc3 Nf6 d4 d5 Nf3 Bf5 Ne5 Ne4 -------------------------------^^^^ >>>... and with just one more history move (4): >>>[...] >>> 8. 0:01.28 1088694 0.00 e4 Nc6 Nf3 e5 d4 Nxd4 Nxd4 h6 -------------------------------^^^^ >> >>Seems reasonable. > >Mmmh, that still is not very reasonably to me to get much different results >for different move orderings. >The score of the moves itself should not be affected ?! >Do you have an explanation? But the score _is_not_ changed... see above. Cheers, Heiner
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