Author: Vincent Diepeveen
Date: 15:45:55 01/12/00
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On January 12, 2000 at 18:27:23, Albert Silver wrote: >On January 12, 2000 at 16:11:31, Bruce Moreland wrote: > >> DT Ferret Chop Dark Thought >> 4x450 500 500mhz 21264 >> -------- -------- -------- ------------ >>1 6:00:00 1:56:54 0:12:25 >>2 0:02:00 0:00:33 >>3 >>4 2:30:00 0:25:46 >>5 2:00:00 >>6 >>7 6:00:00 1:27:00 >>8 1:30:46 >>9 >>10 0:02:00 0:00:29 0:50:00 >>11 0:05:00 0:00:13 0:12:00 0:04:32 >> >>I looked at Shep's site, which includes results mainly on slow hardware (P6/200 >>or 233). >> >>http://sccs.8m.com/nolot.html >> >>Many programs find #1 in under 20 minutes. >> >>CM5555 finds #2 in something under six hours. >> >>Rebel 10 found #10 in a couple minutes. >> >>Mine finds #2 quickly due to extension successes. I'm surprised it found #8 at >>all, the score though was only +0.75. >> >>I will include more information as it becomes available. I'll run #5 for a day >>or two. > >Just a question: is it sure they are all 100% correct? I never checked this >myself, but I recall someone (in fact I think it was you) mentioning in RGCC >some time back that Nolot wasn't absolutely sure about all of them. The axb5 sacrafice is more a longterm sacrafice, which i don't see, but the idea for black is to blow up the center which is possible if the queen of white is at the other side of the board (a8). the Nxg5 instead of bxg5 move is very difficult but i don't doubt it wins in the end, i lack just several tenths of positional eval when searching quite deep for DIEP to play it. All other moves i could verify to be correct, though from Ng5 it's a big mystery to me what line(s) DIEP needs to find in order to see it. The second problem (Rxc5) is really mating extensions dependant. I've had versions of DIEP which extended quite a bit threats which failed high within seconds at 7 ply. Later it needed 8 ply to find it, and that continuesly was a ply more till it needed 10 ply. Then i turned off the threat extension, plan to turn it on real soon and test again at NOLOT. > Albert Silver >> >>bruce
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