Author: Ian Osgood
Date: 15:55:31 04/10/00
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On April 09, 2000 at 07:19:15, Steve Maughan wrote: >Marcus, > >>the sapphire is doubtless the much stronger progam. >>the palm genius is maximum slightly above 1900. he can´t even hold down the old >>travel champion. against the sapphire he is chanceless. > > >I also have Palm Genius and a Travel Champion. It would seem that Travel >Champion is Palm Genius' 'bogey' opponent as it doesn't do as well as one might >expect. However other (Richard Fowell) have reported that Palm Genius holds its >own against the Sapphire, so maybe Palm Genius is stronger than 1900. All the >tests that have been carried out on the base code of the Roma would indicate >that Palm Genius should be >2000 ELO. I am the one who reported results of the ChessGenius (PalmIIIe) vs. Sapphire II. Here are my results (Genius-Sapphire): 1 sec (unregistered) vs 2 sec (no book,no hash,no brain): 0-1 1 sec vs 2 sec (no hash, no brain): 0-2 1 sec vs 2 sec (no hash): 0-1 (Genius registered, both using book, Sapphire no permanent brain) 2 sec vs 2 sec: 2 - 2 5 sec vs 5 sec: 1.5 - 2.5 10 sec vs 10 sec: 1 - 3 Comments: Sapphire II is the stronger computer. The determining factors in my opinion: 1. Much larger book: Genius fell into lost positions in several games. 2. Selective play: Sapphire sees the holes in Genius's selective search, and is more active. 3. Hash tables: Sapphire has them (albeit small). This wasn't as big a factor as I originally thought: Genius has superb endgame heuristics. It even won one of the games out of a PPPPN vs PPR ending! Genius is comparatively stronger at the fast controls (1sec, 2sec) but Sapphire II gains the edge as the thinking times lengthen. This could be due to its hash tables or its more modern search (1996 vs 1984 for Roma). However, ChessGenius wins hands down for convenience (back-lit, touch screen, pocket size vs thick calculator). I still need assurance that it is safe to overclock my Palm IIIe before I do "advanced" testing. There are some horror stories in the newsgroups of people who trashed their Palm permanently after overclocking. Ian Osgood >Regards, > >Steve Maughan
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