Author: Roy Eassa
Date: 05:49:18 04/03/02
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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! :-)
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