Author: Uri Blass
Date: 21:46:24 12/09/00
Go up one level in this thread
On December 09, 2000 at 20:47:12, Howard Exner wrote: >On December 08, 2000 at 02:06:40, Uri Blass wrote: > >All these interesting positions are deep and look very difficult for computers. >If a program finds one of these it would be remarkable. I remember that Fritz could avoid Kg1 position in less than 15 minutes and it means that it can avoid it at tournament time control on fast hardware. Ernst Heinz told me that Dark thought solved all these positions in less than an hour and it solved avoiding Kg1 in 37 seconds. Other results of Dark thought: It found d6 in 13 minutes and 55 seconds. It found g4 in 53 minutes and 34 seconds. It found Re6 in 37:19 That nobody replied, "X >finds this in 8 minutes!", may indicate they are beyond current programs. > >These positions are typical of many correspondence games. I used to read the >correspondence column in "Chess Life" magazine. The way the author wrote about >many deep and complicated positions revealed that they were routine occurances >for him. Another annotater of an OTB game would lavish them with exclamation >marks. > >>2)Again this position could happen in my correpondence games. >> >>[D]7r/1k2P2P/4p3/1pp5/8/2pp4/1n3PP1/R4K1R w - - 0 1 (bm = g4) > >This position was the one I spent the most time on. >The best defense for black, after g4, I could come up with was Nc4. > >1. g4 Nc4 2. Rh3 Ne5 3. f4 Nxg4 4. Rxd3 Nf6 5. Kg2 c4 6. Rd8 Rxh7 7. Rd7+ >Kc6 8. e8=Q Nxe8 9. Rxh7 b4 > >The above line is not too thorough. Do you have notes on the Nc4 reply? I only find 1.g4 Nc4 2.Rh3 in my notes(I think that I did more analysis but I cannot find it and maybe I did not save it). I also found the following line to demonstrate that 1.e8Q is probably losing. 1.e8Q Rxe8 2.h8Q Rxh8 3.Rxh8 b4 4.Ke1 b3 5.Rh4 Kc6 6.Rh3 c4 7.Rh4 Kb5 8.f3 Na4 The position could happen in my game but did not happen so I only analyzed it enough to get the impression that g4 gives good chances to win for white. I understood that Nc4 is also the best try for black and finding Nc4 may be another hard test position for programs. Uri
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.