Banksia GUI released

[Rom77]

Why is there such a big difference? Is it possible to enter an option for calculating the classic Elo?

v0.37 :


v0.38 :

[phhnguyen]

Why is there such a big difference? Is it possible to enter an option for calculating the classic Elo?

v0.37 :


v0.38 :

Previous versions of 0.38 were not Elo but LOS (Likelihood of Superiority).

https://www.chessprogramming.org/Match_ ... uperiority

When discussing we mostly talk about Elo but not LOS even LOS can be used to compare engines.

LOS is much easier to implement (that is why BSG has it so soon) when Elo/BaysesElo required me a lot of effort to understand and implement.

[rongle99]

To clear this confusion, we need one more report, called "Rating".

Its application can be seen at TCEC.

[rongle99]

In short, version 0.37 uses Ordo model by Gaviota, while version 0.38 uses Bayeselo model from Rémi Coulom.

But Ordo is much more popular than Bayeselo, so Mr. Phhnguyen might consider switching from Bayeselo to Ordo.

The algorithm of Ordo can be found here [https://sites.google.com/site/gaviotachessengine/ordo] in the ''Manual'' menu

[Modern Times]

More popular yes, and maybe that is reason enough to switch , but it is not universally accepted as better, just different.

[phhnguyen]

In short, version 0.37 uses Ordo model by Gaviota, while version 0.38 uses Bayeselo model from Rémi Coulom.

But Ordo is much more popular than Bayeselo, so Mr. Phhnguyen might consider switching from Bayeselo to Ordo.

The algorithm of Ordo can be found here [https://sites.google.com/site/gaviotachessengine/ordo] in the ''Manual'' menu

No, it was LOS but not Ordo’s Elo. You can see my implementation of LOS in Banksia - the open source one, it is so simple and quite far from Ordo’s one.

BTW, I have been considering to implement both Ordo and Bayseselo methods thus users can take anyone.

[phhnguyen]

More popular yes, and maybe that is reason enough to switch , but it is not universally accepted as better, just different.

The main reason I have implemented Bayeselo first is that some famous chess websites use that method

[rongle99]

Really appreciate you will implement both, thank you for your hard work

And I also like to see the reports in the PGN file, Time is now reported in milliseconds and not seconds, this is really very good, coz sometimes we use a very small tc (say 0.05s/move) If the report is still in seconds, then it will read as zero (0) in the PGN file.

[Nordlandia]

Happy Christmas

Do Banksia GUI take castling rights into consideration in case of threefold repetition ?

Karpov versus Miles, 1986

[d]r3kb1r/5ppp/4p3/1N6/4P3/8/Pn1BK1PP/R6R b kq - 1 22

Karpov claims draw with his third move Nb5. But the draw by repetion rule also considers the castling availability. At the first Karpov's Nb5, Anthony Miles still had queen side castling movement. With the second Karpov's Nb5, Anthony Miles had no more the castling available. So, the first position is different of the second by this reason. By a mistake, Karpov claims the draw after his thirt Nb5 move, but the position was repeated only twice.

It need to be repeated four times.

[Engin]

well, Banksia did not automaticly update engines ELO

i expected that this will be update and replace the ELO ratings of the engines right after finished a tournament.