Author: Jeremiah Penery
Date: 10:36:24 11/11/98
Go up one level in this thread
On November 11, 1998 at 12:42:08, Howard Exner wrote:
>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.
>
>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?
Crafty (modified), PII 300, hash 24M + 5M(hashp) plays the move in 2:04, finds
mate:
-----
13 3:07 Mat14 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+
Kh2 10. Kf2 Qc5+ 11. Kf1 Qxc4+ 12.
bxc4 Kh3 13. Qg2+ Kh4 14. Qh2#
-----
Unmodified Crafty plays it in 2:25 and finds mate in 5:35
I'm a bit surprised that Fritz didn't find this in at least a matter of minutes,
based on all that I've heard about it. Anyone with Fritz confirm this?
Jeremiah
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