Author: Djordje Vidanovic
Date: 06:53:40 11/07/05
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On November 07, 2005 at 08:29:00, vladan wrote: >On November 06, 2005 at 21:18:21, Djordje Vidanovic wrote: > >>If you take a look at this position you can see that Fritz 9 needs a decent >>chunk of time to find the simple Rg3! It spends a lot of time on the simple pawn >>to g4 and only after about 80 seconds (FX-53) switches to Rg3, eventually >>announcing a mate in 23: >> >>[D] r6r/p2Q2pp/6k1/2P1pp2/1Pb5/R7/6PP/6K1 w - - 0 29 >> >> >>It is interesting to note that Fritz 9 learns successfully, even though its >>positional learning is all done in the RAM and gets cleared the moment you exit >>Fritz. In a repeated try while I was still in the program, Fritz targeted Rg3! >>right away never changing the winning line. >> >> >>Djordje > >Very interesing observation Djordje, but I think its not machine learning, >simply Fritz uses old hash generated by primary searching. Try to reset >hash, and then search the position again. Ruffian also has advanced hash >procedures to use previous search results, but it is only hashing. > > >Best regards, > >Vladan Hi Vladan, nope, Fritz 9 does learn albeit only during longer engine-engine matches that are played non-stop, or while at the server overnight etc. Trust me, I know what I am saying :-) Djordje
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