Author: blass uri
Date: 14:52:37 02/17/00
Go up one level in this thread
On February 17, 2000 at 17:38:42, Dave Gomboc wrote: >On February 17, 2000 at 17:17:08, blass uri wrote: > >>On February 17, 2000 at 15:01:57, Dave Gomboc wrote: >> >>>On February 17, 2000 at 12:39:36, Jeremiah Penery wrote: >>> >>>>On February 16, 2000 at 19:31:12, Dave Gomboc wrote: >>>> >>>>>On February 16, 2000 at 16:37:30, Jesus de la Villa wrote: >>>>> >>>>>> >>>>>>After several hours neather(sp?)my software say something interesting, nor I. :( >>>>>>Would you supply your main line, please. >>>>>> >>>>>>Thanks. >>>>> >>>>>I don't have one! NCO ends with an eval of +-, that's it! >>>>> >>>>>Here's Crafty 17.6's latest: >>>>> >>>>>depth=16 1/36 +0.00 14. Nxg5 Rxf1+ 15. Qxf1 h6 16. Bc4+ Kh8 17. Nf7+ Kh7 18. >>>>>Qd3+ g6 19. Qe3 Qf8 20. Rf1 Qg7 21. e6 Nc6 22. Ng5+ Kh8 23. Nf7+ Kh7 >>>>>Nodes: 2669305457 NPS: 70807 >>>>>Time: 10:28:18.30 >>>>> >>>>>I am going to stop it thinking now; I have to get some real work done with my >>>>>computer again. :-) If someone else has some decent hardware and another >>>>>program, I'm interested to see how it does. >>>> >>>>On ply 15 with my modified Crafty, I was getting a fail-high with score >.02 >>>>Since it was taking hours (it was running on 8 hours just to resolve the >>>>fail-high), I was forced to stop it, so I could play Planescape. :) I did >>>>follow the line for a few moves, and the score kept going up as I went further >>>>along. I think it's just a case of computer mis-evaluation - white is slightly >>>>down on material (at first), but black's pieces in the corner are useless to >>>>him. The computer doesn't realize this. Not to mention that all white's >pieces are aiming at the nearly-naked black king. >>> >>>Crafty's variation wasn't bad at all. In the main line above, 21. Nxh6 wins the >>>house, and Black's only real alternative is 20...Bf5, which still loses. But I >>>was disappointed that it wasn't seeing that it was winning: the point of the >>>variation is that White can castle (to reach the diagram position where I forced >>>Black to play ...fxg5.) If a program can't see that the piece is untakeable, >>>the program can't see that White can castle safely. >>> >>>Dave >> >>chessmaster6000(ss=10) can see in a less than 3 minutes that white is better >>(+0.03) >>The main line also begins with Ng5 Rxf1+ >>The evaluation in the next iteration is +0.64 >> >>Uri > >+0.03 looks like a draw score artifact (i.e. draw score, but slightly adjusted, >maybe to favor long draws over short draws). The +0.64 might be enough to allow >CM to castle into the position. > >Dave The evaluation now at depth 2/12 is +1.33 time 38:24 hardware PIII450 main line begin with 1.Ng5 g6 2.Qb3+ Kh8 3.Rxf8 Qxf8 4.Rf1 Qe7 5.h4 Bf5 Uri
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