Author: Ricardo Gibert
Date: 14:16:00 09/02/99
Go up one level in this thread
On September 02, 1999 at 12:25:29, Ian Osgood wrote: >On September 02, 1999 at 11:28:33, Ricardo Gibert wrote: > >>On September 02, 1999 at 07:50:08, souche wrote: >> >>>On September 01, 1999 at 17:45:28, Ricardo Gibert wrote: >>> >>>>On September 01, 1999 at 11:15:04, Trefor Deane wrote: >>>> >>>>>I have a Casiopea E105 32Mb colour palm PC, can anyone recommend A strong >>>>>Windows CE Chess Program that is available on CD Rom, or one that could be >>>>>downloaded from the Net. (web address?) >>>>> >>>>>Thanks >>>>> >>>>>Trefor. >>>> >>>>Midnight Chess http://www.midnight-programmers.com/ >>>>Pocket Chess http://www.eskimo.com/~scottlu/index.html >> >> >>>>Chess http://www.eskimo.com/~scottlu/index.html >>Correction: >>Purple Chess http://www.purplesoft.com/ce/palm_ce_chess.htm >> >> >>>>Palm Chess http://www.synctel.com/ >>>> >>><cut> >>> >>>>I believe they all have demos, so try them out. Palm Chess is interesting due to >>>>its support for PGN. One of the demos is so crippled. It only lets you you play >>>>15 moves (Palm Chess?), but I don't remember which one. >>>> >>>>I hope this helps. >>> >>>please, post your test (especially strength). Cassiopeia seems having a good >>>processor (for handtop) i'm very interested. >> >>Yes, the Cassiopeia E-100 has a 131mhz VR4121 MIPS processor made by NEC with >>16Mb ram, while the E-105 has 32Mb ram ,so they have interesting possibilities >>for playing chess. If I remember correctly, the CPU has 24Kb of cache divided >>into 2 unequal parts. One for data & one for instructions. You can check the NEC >>site for more detailed & more reliable information on the processor. >> >>There is a review of Purple Chess vs Pocket Chess at >>http://5alive.psionking.com/Documents98/battle_of_wills.htm > >Note however that this test was run on a Psion 5. It uses a 20MHz ARM >processor, which is much slower than the Cassiopeia Ricardo is interested in. >The Psion products are also earlier versions, so one would expect some engine >refinements from the WinCE versions. The confusion is understandable, since >both programs are available for WinCE as well as the Psion. Sorry. I did not mean to imply the review was conducted using the cassiopeia. An unfortunate juxtaposition on my part. I should have pointed it out. Thanks for the clarification. > >As an example of how dependent these programs are on processor speed, compare >the strength of PocketChess on the PalmIII (17 MHz) with that of Deep Green on a >MessagePad 2000 (160 MHz). These two programs have the same chess engine, but >run at very different speeds. Deep Green maintains an over 1800 rating on FICS >as NewtonChess. Though Deep Green plays poor positional chess, it is tricky to >beat because it searches deep enough to find all the simple tactics. >PocketChess on the other hand only plays about 1400-1500 level chess (IMHO). It >only holds its own against Deep Green when given 10:1 time odds (as would be >expected). > >On the other hand, having a great eval and writing your search engine in >assembly can make up for a lot: the Novag Sapphire II only runs at 32 MHz, yet >consistently beats Deep Green at equal time controls. > >None of these handheld programs currently takes advantage of extra memory for >hash tables, as far as I know. They were designed for the lowest common >denominator: a cheap PDA with all memory in use. The memory architecture of >PDA's is probably a hinderance as well (designed for low power consumption, not >fast access). Not a hindrance if the program does not want it to be. For example DOOM a 3D action game runs fine on the cassiopeia and uses up a major chunk of the available memory. > >I also would like to see head-to-head results for the aforementioned programs. >Note that PalmChess is programmed by Tom Kerrigan of this forum, the engine of >Purple Chess was licensed from Oxford Toolworks (?) the home of CSTal, Midnight >Chess is reportedly a port of gnuchess, and PocketChess is a refinement of SCP, >one of Stanback's early engines. Very interesting. Thanks for your post! > >Ian
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.