Author: Uri Blass
Date: 10:41:45 06/04/01
Go up one level in this thread
On June 04, 2001 at 13:09:42, José Carlos wrote: >On June 04, 2001 at 10:12:36, Christophe Theron wrote: > >>On June 04, 2001 at 05:29:47, José Carlos wrote: > >[snip] > >>> I think you misunderstood him. He said 'material only', which means that the >>>program choses the first move it generates and sticks to it unless it sees it's >>>losing material. 'h3' is just a move that doesn't lose material in 30 plies. >>>There are a lot of others, but the program doesn't mind, since he thinks they >>>all are worth the same. >>> >>> José C. >> >> >> >>The fact that h3 was not losing material after 30 plies was not obvious, at >>least to me. > > I didn't say the opposite. I simply didn't catch his joke, and tried to >explain why the program gives a move like h3 when doing material only. > >>As someone else said, a tool like this one could be useful to improve opening >>theory by computing exactly which opening lines could lead to forced loss of >>material. >> >> >> >> Christophe > > I agree, but Rudolf said it only works in the starting position, not in >midgame positions, so I think when you start moving pieces, the tree will get >bigger and it will be impossible to perform such a deep search. > Anyway, the test is interesting. No doubt. The question is 'how better (if >any) is material only at d30 compared to a good eval at d15?'. Probably some >people (Vincent?) would prefer good eval at d15. I think that everyone is going to prefer good evaluation at depth 15 and not only material evaluation at depth 30. I will say more than it. I believe that Sos with normal evaluation at depth X is going to beat Sos with only material evaluation at depth 2X for every X except maybe for X=1,2,3. 1.h3 moves cannot work. Rodulf can try it for small X. Uri
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