Author: Dann Corbit
Date: 16:21:03 12/22/05
Go up one level in this thread
On December 22, 2005 at 18:52:43, Drexel,Michael wrote: >On December 22, 2005 at 16:37:25, Dann Corbit wrote: > >>On December 22, 2005 at 15:23:07, Dann Corbit wrote: >> >>>On December 22, 2005 at 14:35:56, Drexel,Michael wrote: >>> >>>>On December 22, 2005 at 13:26:55, Dann Corbit wrote: >>>> >>>>>On December 21, 2005 at 21:20:10, Uri Blass wrote: >>>>> >>>>>>On December 21, 2005 at 20:30:18, Dann Corbit wrote: >>>>>>> >>>>>>>Generally speaking, chess engines have terrible judgement in early opening >>>>>>>positions and absurd judgement in gambits. >>>>>>> >>>>>>>For a bit of gambit fun, try this position on your chess engine: >>>>>>> >>>>>>>[D]r1bqk1nr/pppp1ppp/2n5/b7/2BpP3/2P2N2/P4PPP/RNBQ1RK1 b kq - am dxc3; bm Nge7; >>>>>>> >>>>>>>and see how long it takes to find Nge7. Most engines I tried cannot find it in >>>>>>>an 8 hour search. I have not tried it lately, but I guess that they still >>>>>>>cannot find it at 40/2, no matter what the hardware or program (w/o book, that >>>>>>>is). >>>>>> >>>>>>am dxc3 is easy for rybka >>>>> >>>>>Not for the others, though. >>>>> >>>>>>bm Nge7 is an harder problem and Rybka likes Nf6 >>>>>>Are you sure that Nge7 is the only move? >>>>> >>>>>It is clearly the best move. >>>> >>>>I wonder how you came to that definite conclusion? >>>>You are aware of the alternative 7...Bb6 8.cxd4 d6 ? >>> >>>It appears to have been popular in the 1800's. In my database, I have 512 games >>>from that position: >>>[D]r1bqk1nr/ppp2ppp/1bnp4/8/2BPP3/5N2/P4PPP/RNBQ1RK1 w kq - >>>and white scores 58.8% of the points (well above average). >>> >>>I am analyzing the position now. >> >>Rybka thinks that White is slightly better here. Considering also that White >>scores only 48.8% after the Nge7 move (a ten percent swing from this >>alternative) it seems to me that it is not as good for black as Nge7. Of >>course, I am not a chess expert. Maybe someone like Robin Smith can offer more >>insight. > >It is dangerous but that doesn't mean it is necessarily bad. >According to my database black as won many games with this line recently. >7...Nge7 is a good move but theory says 8.cxd4 d5 9.exd5 Nxd5 10.Ba3 Be6 11.Qb3 >is equal. It's certainly an interesting alternative, worth investigation. I'm going to study it some more. [snip]
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.