Author: Bruce Moreland
Date: 13:24:54 11/25/98
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On November 24, 1998 at 17:45:07, Will Singleton wrote: > >On November 24, 1998 at 14:16:16, Ernst A. Heinz wrote: > >> >>"DarkThought" finished iteration #21 after 210 hours of computation and I >>finally had to stop it there. Qb6 remained the best move and the PV took about >>156 hours and exactly 120,180,459,947 nodes to resolve (3x more than the PV of >>the previous iteration). The expected best reply switched back to Rd8 and the >>score sank to a new low of +1.13. >> >>21.01 Qb6 Rd8 Be4 a5 axb5 axb4 Rxa8 Rxa8 Ra6 Rd8 ... (1.13) #120180459947 >> >>=Ernst= > > >Pretty interesting. So, I take it that, having done this, you will now run the >position after axb5, to see what the difference is. > >And Bruce, have you done a similar experiment? I'm just running this from the root for a few days. I don't want to make this my main thing for the rest of the year, so I think I'm about done. PV at ply 20 is +1.32 Qb6 Qe7 axb5 Rab8 Qxa6 e4 Qa7 Qe5 Qe3 Re8 b6 Qxf5 Ba4 Re7 Bc6 Qe5 Ra8 Qh2+ Kf1 Re5 Rxb8+ Bxb8 Qg1 Rf5+ Ke2 Qg3 Kd2 I'm disappointed that the score didn't drop more. I haven't looked at this PV, as far as I know there are probably bad mistakes after a few plies. bruce
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