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Old June 25th 07, 09:51 PM posted to
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Default Rybka's $100,000 challenge

albert h.alberts wrote:

JUNIOR wins over Fritz in Elista WC Computer Chess.

*RYBKA* wins the the Computer World Chess Championship
2007 with 9 wins and 2 draws.

The so-called "Ultimate Computer Chess Challenge 2007" was
a bogus matchup between two chess programs that are clearly
inferior to Rybka and which refuse to compete against Rybka.
Both of the also-rans are marketted by Chessbase, thus
insuring that a Chessbase program wins either way. And even
that wasn't cheating enough; they gave the two programs
different hardware so as to get the one they wanted to win.


An Open Letter and $100,000 challenge to
FIDE President Kirsan N. Ilyumzhinov

His Excellency
FIDE President Kirsan N. Ilyumzhinov
May 31, 2007
Dear Mr. President,

First, let me start by commending you for your entry into
computer chess with the organization of The Ultimate
Computer Chess Challenge 2007. Computer chess has seen
dramatic improvements in the past few years. Some chess
engines have progressed dramatically from the primitive
beancounters of yesterday and I believe that our games too
now qualify as art. Chess at this level inevitably attracts
the attention of chess players all over the world.

Unfortunately, the lack of an open, formal qualification
procedure for your event was disappointing, and your choice
of the two opponents was downright bizarre. You have snubbed
my program, Rybka, which leads every single computer chess
rating list by a considerable margin at all time controls
from blitz games to long tournament games [1]. In many cases
the gap between Rybka and her nearest competitor is well
over 100 Elo. None of this is anything particularly new -
Rybka was released on December 4, 2005, and since then her
smallest lead ever in any major rating list at any time
control and on any hardware was 60 Elo. In addition to this,
she has competed in all eight major international
tournaments held since her first release and taken clear
(unshared) first place in seven of them. [2] Rybka has also
displayed her superiority in competitions against human
players. It's no wonder that Rybka is generally considered
the undisputed strongest chess program in the world.

Some of the other aspects of the match also raise questions.
Chessbase exclusively markets three of the world's top ten
engines, so it's a curious coincidence that two of them will
participate. Also curious is the involvement of the ICGA -
after all, their own self-titled "World Computer Chess
Championship" is being held on overlapping dates. This type
of apparent division between insiders and outsiders runs
counter to all principles of sport and fairness, and I call
on you to uphold democratic FIDE norms in the organization
of such events.

In the spirit of open competition, I am formally offering a
$100,000 computer chess challenge from Rybka to FIDE, who
will be represented by the winner of the Ultimate Computer
Chess Challenge 2007. My challenge consists of a 24 game
match, at classical time controls, on unlimited hardware and
with unlimited opening books, held at 2 games per day over
twelve days, with Rybka giving a handicap of one point plus
draw odds and thus requiring a score of 13 out of 24 or
better to win the match. The prize fund of $100,000 should
be a winner-takes-all, loser-pays-all proposition.

As the Ultimate Computer Chess Challenge 2007 takes place
during the Candidates Matches in Elista, it is appropriate
that the winner's match vs Rybka be played in Mexico between
September 12 and October 1, 2007, during the FIDE World
Chess Championship.

Gens una Sumus,

Vasik Rajlich
author of Rybka
FIDE International Master

[1] CEGT Rating List, CCRL Rating List, CSS Rating List,
SSDF Rating List

[2] 15th IPCCC 2005, 8th CCT 2006, 6th CSVN 2006, 26th
Dutch Championship 2006, 14th WCCC 2006, 16th IPCCC
2006, 9th CCT 2007, 7th CSVN 2007

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