Author: Drexel,Michael
Date: 15:40:54 09/17/03
Go up one level in this thread
On September 17, 2003 at 17:31:18, Tord Romstad wrote:
>On September 17, 2003 at 12:56:51, Drexel,Michael wrote:
>
>>On September 17, 2003 at 12:26:09, Uri Blass wrote:
>>
>>>Junior7(A1000) needs less than 1 second for 15...Nf3+(only 114 knodes)
>>
>>Sorry, Junior 7 is out of the competition.
>>This program sacrifices knights on f3 just in order to weaken the white King
>>position. If it has anything for the piece or not is not important.
Whether :)
>Do you really think so?
No. I was just angry (not really) that Uri found a program which is even faster
then Chessmaster. Of course I have tested also all my other top programs on this
position and they were much slower.
I think precisely the opposite. It is much more
>impressive and
>interesting when an engine plays a correct sacrifice long before it sees a clear
>win than
>how fast an engine can calculate a precise score and the right PV. A true
>sacrifice tells
>you something about the engine's understanding and knowledge about the game of
>chess,
I accept your opinion but dont agree.
I dont think it has anything to do with knowledge of chess.
Often there IS a defence and the sacrifices are unsound.
I have seen some games from Junior 7 (at tournament time control) when it has
sacrificed material for nothing (temporary initiative) evaluating the position
only slightly worse.
while the time it needs to find a combination just tells you something
>about its
>speed of calculation and its search extensions.
>
>The King has always been among my favorite chess programs, but in this
>particular
>position I am much more impressed by Junior (which I don't know at all). That
a
>program is able to find the move Nf3+ long before it sees a concrete win, and
>still
>avoids making unsound sacs in too many other positions (I assume that Junior
>doesn't make unsound sacs very often, as it is clearly one of the strongest
>programs
>available) is truely remarkable.
>
>I can accept that you don't give my engine credit for solving the problem
>quickly.
Never said that. There are not many freeware engines which will find this move
that fast and even some commercials are slower.
Of course I also belive that Chessmasters performance is even better in this
particular position.
>My engine is very weak, and while it finds this and many other sacrifical
>combinations
>very quickly, it also frequently makes unsound sacrifices. But I think you are
>really
>unfair when you claim that Junior is "out of the competition".
>
>>The score is not convincing either.
>
>Who cares? Computer chess enthusiasts are too occupied with numbers (ratings or
>evaluations). It is more important how fast an engine finds the right move than
>how
>it evaluates the position.
Agreed, if it is the right move ...
Michael
>
>Tord
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