Do you think Rybka can come back to ...

[Graham Banks]

I'll go out on a limb and say that Rybka could still take it out.
However I'm not bothered who wins as long as it's good chess and there are no lame excuses from whoever loses.

[Spock]

I also think Rykba can and will take the win....

[George Tsavdaris]

Larry Kaufman Writes:

"The loss in the 180 move game was actually predicted by the opposing operator during the period when both programs scored it as around +1.80, because he knew that Rybka would shed a pawn to avoid 50 move rule draw. This can only be considered bad luck, as if Rybka didn´t do this it would have saved this game, but would sometimes cost half a point in other games. Maybe we need a far more complicated rule to cover the 50 move rule situations in the future, but we have many higher priority things to do first."

This is not bad luck. There is no luck in Chess i repeat again.
Someone can argue as much as he wants about that, but in the end i will persuade him that there is no luck in Chess.

How is bad luck the fact that you didn't implement something, correct enough in order to work as you want. The fact that it is really very complicated what Larry Kaufman says, is correct, but this is irrelevant and does not imply in any case bad luck.....


If Rybka was designed to accept the draws in such situations accepting the fact it is really a draw, then it would save the 4th game. But it would lose half points in other games where it would win after giving Pawns to avoid 50-move rule draw.
But it is designed to play and avoid 50-move rule in such situations. And if you leave this on luck you will win some games but you will lose some games also due to that, like it happened in 4th game.
But this is not bad luck, it is just a bad design you've made leaving things on luck.....

[mclane]

where ??

whatever. guys its only a match.

competition is what we need.

i am very much looking forward to see zappa win.
and i hope this motivates anthony and his team to come back and to compete. i also hope they get enough money and maybe they could make later some bugfixes (no tablebases under arena).

also i think vas will profit from this situation. because you can only make your engine better if you have a strong OPPONENT.
vas was very very succesful in making rybka better in the last 2 years.
but maybe he can do even better if another competitor reaches rybka closer.

also for all the others (hiarcs, shredder etc.) it would be HIGHLY motivating to see that rybka CAN be stopped.

we were used to the fact that rybka is way ahead.

we even had discussions a few weeks/or months before:

is computerchess at the end ?

as we now see, the midlife-crisis is over and we get shown by erdo and anthony and whoever is also involved in zappa, that computerchess was never that interesting than today.

thats why i like computerchess. there is - especially in a tournament - always a surprise possible. can rybka strike back ?

everything is possible.

both have shown us a very good match so far.
thank you.

[AdminX]

where ??

Hi Thorsten,

If you mean where did I find Larry's comment, then I found it at the link below:

http://rybkaforum.net/cgi-bin/rybkaforu ... id=2251#fp

By the way, I agree with what you say. "Competition is what we need". I am glad Erdo and Anthony bought a plateful of it with them to Mexico.

[Eelco de Groot]

Rybka's strategy is to play for a win with the Black pieces only Statistically Rybka wins more often with Black than with White.
This was very informative and interesting!
On poll: "The fish is dead, long live the new fish..."
Although-I suspect Antonie is not going to give a new version in another year at least

Well actually I don't know if my first sentence holds much water, but I do know that in the first CCRL testing of Rybka 2.3.2a, Rybka's only losses were with White. I don't know how that translates to winning percentages. In general my theory is that the White advantage is not so easy to exploit for programs, because they are still lacking strategic insight to build up an attack. That is just a theory but I was only half joking when I put my smiley! Larry Kaufmann stated that White had the advantage in most Ruy Lopez games in the match prior to this game. So it would surprise me if they will play it with Black tomorrow. But we will see!

Regards, Eelco

[Dr.Ex]

Rybka's strategy is to play for a win with the Black pieces only Statistically Rybka wins more often with Black than with White.
This was very informative and interesting!
On poll: "The fish is dead, long live the new fish..."
Although-I suspect Antonie is not going to give a new version in another year at least

Well actually I don't know if my first sentence holds much water, but I do know that in the first CCRL testing of Rybka 2.3.2a, Rybka's only losses were with White. I don't know how that translates to winning percentages. In general my theory is that the White advantage is not so easy to exploit for programs
Regards, Eelco

There is no white advantage. Black is OK

[George Tsavdaris]

Rybka's strategy is to play for a win with the Black pieces only Statistically Rybka wins more often with Black than with White. They just have to figure out that 1...e5 is not such a good opening to play for a win.
Otherwise I do not really understand why they, team Rybka, don't play the Sicilian in Mexico?

Perhaps you missed game 5? They played the sicilian 1...c5 and lost.
Yet, Erdo avoided the Najdorf where we would have an interesting battle.

[playjunior]

Game 5 was a disaster by Rybka. It got an somewhat inferior but most likely holdable position, and then played a really dumb variation.
When watching those game I remeber ...Bf8 by Fritz Bahrain against Kramnik in game 1.

[Eelco de Groot]

Rybka's strategy is to play for a win with the Black pieces only Statistically Rybka wins more often with Black than with White. They just have to figure out that 1...e5 is not such a good opening to play for a win.
Otherwise I do not really understand why they, team Rybka, don't play the Sicilian in Mexico?

Perhaps you missed game 5? They played the sicilian 1...c5 and lost.
Yet, Erdo avoided the Najdorf where we would have an interesting battle.

George you are right! I totally missed that I thought the game had long ended when I came back here but I thought it strange nobody posted a score, then when I entered Playchess I realized they had still been playing! But then the game had just ended...I never got to look at the opening...

There is no white advantage. Black is OK

I know , I believe it was Adorjan who first came up with this -new?- adagium when he was still the main second of Kasparov, I think that was the second K-K match? He was going to write a book with this title I believe, but as far as I know the book never materialized? Still Andras Adorjan has to be credited, with some good opening ideas and he was a very gifted player, I believe he was playing in a tournament recently but for many years I cannot remember having seen him play in any tournaments?

Regards, Eelco