Author: Christophe Theron
Date: 17:08:55 04/03/02
Go up one level in this thread
On April 03, 2002 at 08:49:18, Roy Eassa wrote:
>On April 03, 2002 at 05:12:09, Franck ZIBI wrote:
>
>>
>>Hi!
>>
>>>Was there really a program for a handheld calculator that played 100% legal
>>>chess?
>>It was :-) (the only rule it didn't managed was the under promotion)
>>
>>You can find a screen copy at:
>>http://home.worldnet.fr/~fzibi/hp48/hpchess.htm
>>
>>The engine itself (16 KBytes) was in Saturn Assembly (a 4 bit processor),
>>the chip used in the Hp28 / Hp48 calculator.
>>
>>Even with a very simple (mainly static) evaluation, it was running at the
>>outstanding speed of ... 50 nodes per second !
>>
>>BTW, instead of using a Quiescence Search, I preferred to use an 'enhanced'
>>Static Exchange Evaluator, so it was not doing very well in tactics...
>>
>>
>>Among its features :
>> => Opening Book of 2000 moves
>> => Several levels (blitz, 1 Hour KO, etc...)
>> => Resign feature
>> => Take Back
>> => Save and Load Games
>> => Possibility to set up a position and to review a game
>> => Of course no EndGame TableBase were used to improve its play ;-)
>>
>>Its strength was around 1200 elo (searching between 1 and 3 plies),
>>even if I am convinced *now* that it was
>>possible to make a much stronger engine (1700/1800 elo) for this calculator.
>>
>>Apart from this chess engine, other surprising projects were made for this
>>calculator (mainly by students), including:
>> => A HP48 version of the Civilization game.
>> => (small) 3D Animations (take a look at
>>http://home.worldnet.fr/~fzibi/hp48/animate.htm :-)
>> => A TV Remote controller
>>
>>
>>Regards.
>
>
>Very, very impressive! :-)
A piece of art, and believe me I know what I am talking about! :)
Christophe
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