Re: Chess on the TI 83?

To: CALC-TI@LISTS.PPP.TI.COM
Subject: Re: Chess on the TI 83?
From: Jack the Klipper <toru@ONLINE.NO>
Date: Sun, 11 Jan 1998 23:51:42 +0100
Organization: Telenor Online Public Access
References: <v01510100b0dbf7f65c96@DialupEudora>
Reply-To: Jack the Klipper <toru@ONLINE.NO>
Xref: paladin.american.edu bit.listserv.calc-ti:19761

Nathaniel Gibson wrote:

> >> Back in the early 80's when computers weren't too
> >> sophisticated - I can remember playing a chess game against a computer
that
> >> only had 16k of ram - so I know it can be done for the 83. Come on -
> >> Somebody out there must have tried this?
>
> >I think there is some confusion on the RAM on the Ti's. While it says
> >you have 27k ram free to the user(on the TI83, total is 32K of RAM),
> >this is aviable space. If such a chess program require 16k of RAM you
> >would have 27K-16K=11K of RAM left to the program file.
> >Ram on your Pc and on your TI83 is not the same. The Ti83 Ram is kinda
> >like a hard-drive and Ram. Still a good programmer should be able to
> >create a chess program :)
>
> The original author is correct... In fact, you can buy many different chess
> computers today who's internal program is only 32K (including the workspace
> for figuring out the moves). The main difference between the computers and
> a program for a calculator would be SPEED (the computers are DEDICATED to
> playing chess, the calcs are not). Even if the program is written in
> assembly, it would be almost impossible to write a program that could look
> farther ahead than about 3-4 plys (half-moves) without having to wait a
> very long time. The only possible exception may be on the TI-92, where, due
> to the faster chip, you may be able to look ahead 5-6 plys in 3-5 minutes.
>
> Nathaniel Gibson
> ngibson@postoffice.ptd.net

 I didn't deny the possibility for a chess game. I only said the difference
from a
coputer ram and a calc ram was that the calc both stores progs and
RandomAccessMemory' the Ti-ram.
And of course you can make a chess prog at 27K.
Do we really need the calc to do 6 moves with all the pieces??
If you want a real challenge chess you should go for computer chess.
There are 16 pieces which may be moved, and for every piece wich moves, there
is 6
different moves for ALL the other 16 pieces. If it thinks 6 moves ahead (3 for
each side) that would be 16^6 moves
= 16777216 moves. That is all the possibilities in the next six moves. My math
might be wrong, it's sunday..but you get the point, 6 moves ahead is a lot.
BTW: are there any programmers who would make this game??
--
JTK

References:

Re: Chess on the TI 83?

From: Nathaniel Gibson <ngibson@POSTOFFICE.PTD.NET>