Questions? Speak with us Toll-Free at 1-800-645-4710 or send us E-Mail."Your company does both the Internet and the game of chess a great service." - W. Fulton, Washington D.C.. Selective Search Rating List, February 1, 2001
From the computer chess magazine Selective Search
by Eric Hallsworth
I maintain a 'Top Ten' coverage on the Internet, updating it from time to time. The Selective Search Magazine Listings have more details, including Ratings from games/matches v. human opposition, so I hope Internet users will consider subscribing to it, as income I receive from Selective Search is an important part of my livelihood!
Selective Search Ratings
Each computer/program's rating figure is calculated by combining its computer-v-computer results WITH its results against graded players in proper tournaments. The level of the finished List is determined by the results v graded players. More computer-v-computer games are played than those v-humans, as it is physically and financially impossible to obtain the number of games of the latter type that we would wish.
Gradings from computer-v-computer results do not always match those of a computer-v-humans, because a program CAN be prepared specifically to do its best against other computers, OR it can be programmed to do its best against humans! The latter is what USERS want, but programmers inevitably have one eye on our Rating Lists, and are aware of the preponderance of computer-v-computer games which helps produce them! Even so, my view is that to have this type of Computer Rating List as an attempted measure for the programmers and other interested parties, and as a guide for prospective purchasers, is BETTER than to have no list at all, and SELECTIVE SEARCH does combine both types of result!
Please also note that the results on which my Ratings are based do include (with permission) the valuable SSDF scores and, as the calculations combine SO MANY results, I hope that they achieve a high level of accuracy. The Ratings are initially calculated in British BCF figures, before being converted to Elo figures using the formula (BCF * 8) + 600 = Elo.
The TOP RATINGS, including as far as possible all of the NEWEST PC programs and dedicated CHESS COMPUTERS, are:
Ratings are calibrated to Pentium Pro/MMX machines running at 300MHz.
Here I show the Computer, Elo grading, and a code to indicate the type of board. w=wood, auto-sensory, ps=press-sensory, pl=portable plug-in, pc=portable calculator.
Subscribing to Selective SearchThe annual subscription (6 Issues per year) is £20 in the UK, £25 elsewhere. Payments can be made by cheque in pounds sterling, postal order, or credit card (Access, Visa or American Express). Write to Eric Hallsworth, The Red House, 46 High Street, Wilburton, Cambs CB6 3RA, or e-mail: firstname.lastname@example.org
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