Author: Ed Schröder
Date: 11:28:13 11/11/98
Go up one level in this thread
>6r1/2rp1kpp/2qQp3/p3Pp1P/1pP2P2/1P2KP2/P5R1/6R1 w - - id "Shirov - >Krasenkov"; >bm Rxg7; >This is a possible variation in the game and Shirov's comments are, >"White would have a forced mate in 14 moves! Don't try to put this >particular position on Fritz5 or any other program, as it would never suggest 33. >Rxg7+! as the stongest move!" >I looked at the diagram and thought to myself I'll bet that Rebel 10 >would have a good shot at this as it seems to have a powerfull mate >finder. >Sure enough after 2:34 it plays Rxg7 with an ever increasing eval. That >on an AMD K-6 233 in dos with 60 mb hash. On a PII-266: 0:19 for Rxg7 and a mate announce after 0:50 with standard settings. I assume the 2:34 is in case "combination" is set to "off". Analysis... 1. Rxg7+ Rxg7 2. Rxg7+ Kxg7 3. Qe7+ Kg8 4. Qe8+ Kg7 5. h6+ Kxh6 6. Qf8+ Kh5 7. Qf7+ Kh4 8. Qxh7+ Kg3 9. Qg7+ Kh4 10. Kf2 Qc5+ 11. Kg2 Qg1+ 12. Kxg1 a4 13. Qg5+ Kh3 14. Qg2+ Kh4 15. Qh2# Biggest problem for computers the "quiet move" 10. Kf2 - Ed - >So the moral of the story is not to generalize from one computer program >to the next. Probably safer to say that "some computer programs will not solve >such and such a position". My take is that the programs are as unique as >the programmers who work on them. I think they are entitled that rather than >lumping them all together. >So Ed and other programmers whose program can solve this in a tournament >time setting can email GM Shirov with the news that Fritz5 (or any single >program) >does not represent the entire pack. I'm sure some other programs will >play Rxg7 also but I only own Rebel 10 at present so cannot verify this. What >does the rest of the pack play? >Just a small note that the point of my sharing this is not to belittle >Fritz's play - it makes great moves in many different positions. It is >more a sharing that all programs are unique in their strengths and weaknesses >and that one program cannot possibly be singled out as representative of >the whole. It would be as faulty to say, "Rebel 10 finds this position >relatively quickly so the computer programs of today are routinely find >such difficult moves." >Enjoy the position. By the way, I'll enter in the other positional >epd that Shirov was reffering to in a follow-up.
This page took 0.01 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.