Author: Albert Silver
Date: 07:40:05 01/12/00
Go up one level in this thread
On January 12, 2000 at 10:25:54, Djordje Vidanovic wrote:
>On January 12, 2000 at 09:59:21, Frederic Friedel wrote:
>
>>The games of round six are up. Enrique writes: "That Fritz played well and open
>>and bright was the anecdote. But what a punch… No matter how good a program may
>>be in other areas, if it is relatively slow in tactics there is no way it will
>>survive fast finders, and this Fritz is the fastest of all. Game 9 is a good
>>example: Rebel Century took 2 minutes and 18 seconds to blunder the game away
>>with 23… Bxa2, grabbing that miserable pawn; in a fraction of a second, Fritz
>>announced mate in 8. It is not that Fritz played such great chess, but how could
>>Rebel stand these blows?" Here's the game:
>>
>>[Event "Cadaques Tournament"]
>>[Site "Cadaques"]
>>[Date "2000.01.11"]
>>[Round "1"]
>>[White "Fritz 6a"]
>>[Black "Century"]
>>[Result "1-0"]
>>[ECO "A52"]
>>[Annotator "0.28"]
>>[PlyCount "59"]
>>[EventDate "2000.01.01"]
>>
>>{176MB, General.ctg. P2B
>>} 1. d4 {0} 1... Nf6 {1} 2. c4 {0} 2... e5 {1} 3.
>>dxe5 {0} 3... Ng4 {1} 4. Bf4 {0} 4... Nc6 {2} 5. Nf3 {0} 5... Bb4+ {2} 6. Nbd2
>>{0} 6... Qe7 {2} 7. e3 {0} 7... Ngxe5 {2} 8. Nxe5 {0} 8... Nxe5 {2} 9. Be2 {0}
>>9... O-O {2} 10. O-O {0} 10... Ng6 {last book move 2} 11. Bg3 {0.28/14 68}
>>11... Bd6 {2} 12. Bxd6 {0.31/14 73} 12... Qxd6 {2} 13. Qc2 {0.31/13 69} 13...
>>Qe7 {2} 14. c5 {0.31/14 104} 14... Re8 {169} 15. Bd3 {0.44/12 51} 15... d5 {134
>>} 16. cxd6 {0.38/13 0} 16... cxd6 {220} 17. Bxg6 {0.47/12 79} 17... hxg6 {52}
>>18. Rac1 {0.56/13 219} 18... Be6 {95} 19. Qc7 {0.56/13 23} 19... Rac8 {112} 20.
>>Qxe7 {0.63/16 80} 20... Rxe7 {1} 21. Rxc8+ {0.63/16 54} 21... Bxc8 {1} 22. Rc1
>>{0.59/16 134} 22... Be6 {1} 23. Ne4 {0.63/14 56} {
>>[D]6k1/pp2rpp1/3pb1p1/8/4N3/4P3/PP3PPP/2R3K1 b - - 0 23
>>
>>} 23... Bxa2 {138} 24. Rc8+ {
>>#8/10 1} 24... Kh7 {48} 25. Ng5+ {#6/9 0} 25... Kh6 {2} 26. f4 {#5/8 0} 26...
>>Kh5 {5} 27. h3 {#4/6 0} 27... Kh4 {211} 28. Kf2 {#3/4 0} 28... Re8 {14} 29.
>>Rxe8 {#2/2 0} 29... Bd5 {3} 30. Rh8# {#1/1 0} 1-0
>>
>>All games at
>>http://www.computerschach.de/tourn/
>>Please allow the Java page to load fully before replaying.
>
>This position, after 23.Ne4 is very instructive. Enrique seems to be right that
>programs that do not spot the mate threat in this position tend to fall prey to
>fast finders. I've had enough time to check on several progs -- the successful
>ones (fast finders) took only a couple of seconds at the most to spot both the
>threat and the mate: Crafty 17.6 SMP, Fritz 6 (all test versions), Deep Junior
>6, Hiarcs 7.32... I haven't set up my Tiger 12, but am sure that it would spot
>the mate in a split second :) Programs that had a hunch something was wrong
>with capturing on a2: Genius 6.5, Zarkov 5.1, Wchess 1.2a (none of these saw
>the coming mate quickly, but assigned a hefty bonus to White after capturing).
>I was pretty upset to find out that Rebel Century could not at least "intuit"
>about the coming threat to his King via the check on c8 and the subsequent
>checking on g5 with a quick mate. Has anyone tried the previous Rebels?
>
>Djordje
How long does it take Genius 6.5 to see this? I ran this on Genius 3 and it saw
it was mate in 7 after Bxa2 after 2 min 47 on a K6-2/350.
Albert Silver
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