The Unofficial World Championship Of Computer Programs In International Draughts 2018

[Krzysztof Grzelak]

I am pleased to invite everyone to the tournament “ The Unofficial World Championship Of Computer Programs In International Draughts 2018 “. The tournament will be played from 04.05.2018 to 14.05.2018 it will consist of eighteen rounds, will be played by the system " round - robin " with the time of the game 25 minutes on 75 moves. The entire tournament can be watched live online. More information about the tournament invite you to visit sites http://www.uwccpi.draughtsprograms.eu/, http://www.draughtsprograms.eu/DraughtsArbiterPro/ and http://www.draughtsprograms.eu/internat ... eGames.php

Special thanks
Hendrik Veenstra, Bartosz Socha, Paul van de Veen, Marcel Kosters, Jacek Pawlicki, Adam Curyło.

Special thanks for programmers
Ed Gilbert, Jelle Wiersma, Bert Tuyt, Michel Grimminck, Vasily Naumik, Alexey Odnoklubov, Victor Naumik, Adri Vermeulen, Harm Jetten, Fabien Letouzey, Stef Keetman, Gerard Taille, Jan Jaap Van Horssen, Rein Halbersma, Klaas Bor, A.Presman and other programmers I have not mentioned.

Krzysztof Grzelak

[Sidiki]

Hi,

What's the version used for Damage?

[Krzysztof Grzelak]

Hi,

What's the version used for Damage?

Please - everything is written on the site http://www.draughtsprograms.eu/DraughtsArbiterPro/ and http://www.draughtsprograms.eu/internat ... eGames.php

Krzysztof Grzelak

[Jelle Wiersma]

Hi Krzysztof,

Is the Damage program a new program from Bert Tuyt?

After your tournament in 2017 there was discussion about whether Edeon Sport was illegally using Scan's evaluation (taxation of position). Any news on that?

Jelle

[Krzysztof Grzelak]

As for the program Damage , this is the last one he made available Bert Tuyt. As for the program Edeon Sport , this is the new version of the program. I asked the programmers of the Edeon Sport program myself if in the program Edeon Sport used some code from the Scan program and I received a reply that the Edeon Sport program is made on the basis of Russian draughts.

[Sidiki]

Hi Krzysztof,
Great tournament, but i think that for Scan 3.0, itsn't the best move of opening that's activated. Also book-margin it's to much. 4 it's better. This is why it does so many draws.
Sidiki

[Krzysztof Grzelak]

Hi Krzysztof,
Great tournament, but i think that for Scan 3.0, itsn't the best move of opening that's activated. Also book-margin it's to much. 4 it's better. This is why it does so many draws.
Sidiki

Strange things you write. See here http://www.uwccpi.draughtsprograms.eu/settings.html how the Scan program is set.

[Sidiki]

Hi Krzysztof,
Great tournament, but i think that for Scan 3.0, itsn't the best move of opening that's activated. Also book-margin it's to much. 4 it's better. This is why it does so many draws.
Sidiki

Strange things you write. See here http://www.uwccpi.draughtsprograms.eu/settings.html how the Scan program is set.

Scan - Fabien Letouzey - France
Hub - On
Variant - Normal
Book - On
Book ply - 4
Book-margin - 4
Ponder - On
Threads - 2
TT-size - 24
BB-size - 6
The program uses from full 6 figure base of endings

It's what is written, by experience, i know that Scan it's more agressive with book-margin = 0 wich it's equal to best move.
But no matter, after all, draughts are puzzle to resolve. So the player that resolve it much better than the others win.
Good tournament my friend.
Sidiki.

[TAILLE]

round 12, Truus-Dragon
According to the siteThe game ended after move 79.14-5


White to play

The result seems to be a draw though Damt db give the win for black.
What happenned really?

[TAILLE]

round 15, Scan-Truus

By analysing the game without time constraint (!) Damy find the following critical phase:


Black to play

Instead of 44....7-12! black plays the losing move 44...11-16?
Then white plays 45...37-32? instead of the winning move 45.37-31!
Finally black answers with the losing move 45...16-21? instead of 45...7-12! =

A dramatical phase isn't it?

[Fabien Letouzey]

Hi Gérard,

Instead of 44....7-12! black plays the losing move 44...11-16?
Then white plays 45...37-32? instead of the winning move 45.37-31!
Finally black answers with the losing move 45...16-21? instead of 45...7-12! =

Scan improves 37-32 into 37-31 in a few seconds with a convincing score on my machine, so I am not worried. But you are saying that both 7-12 were draws?

Fabien.

[TAILLE]

Hi Gérard,

Instead of 44....7-12! black plays the losing move 44...11-16?
Then white plays 45...37-32? instead of the winning move 45.37-31!
Finally black answers with the losing move 45...16-21? instead of 45...7-12! =

Scan improves 37-32 into 37-31 in a few seconds with a convincing score on my machine, so I am not worried. But you are saying that both 7-12 were draws?

Fabien.

Yes Fabien, Damy finds the draw with both 7-12.
My main variation begins with 44...11-16 45.37-32 7-12 46.32x21 16x27 47.42-37 15-20 48.25x14 9x20 49.30-25 20-24 50.37-32 3-9 51.32x21 9-14 etc. =

[Rein Halbersma]

Hi Gérard,

Instead of 44....7-12! black plays the losing move 44...11-16?
Then white plays 45...37-32? instead of the winning move 45.37-31!
Finally black answers with the losing move 45...16-21? instead of 45...7-12! =

Scan improves 37-32 into 37-31 in a few seconds with a convincing score on my machine, so I am not worried. But you are saying that both 7-12 were draws?

Fabien.

Yes Fabien, Damy finds the draw with both 7-12.
My main variation begins with 44...11-16 45.37-32 7-12 46.32x21 16x27 47.42-37 15-20 48.25x14 9x20 49.30-25 20-24 50.37-32 3-9 51.32x21 9-14 etc. =

Hi Gérard, what are your plans with Damy? Will it remain a private engine? Or do you intend to make it available? Rein

[TAILLE]

Hi Gérard,


Scan improves 37-32 into 37-31 in a few seconds with a convincing score on my machine, so I am not worried. But you are saying that both 7-12 were draws?

Fabien.

Yes Fabien, Damy finds the draw with both 7-12.
My main variation begins with 44...11-16 45.37-32 7-12 46.32x21 16x27 47.42-37 15-20 48.25x14 9x20 49.30-25 20-24 50.37-32 3-9 51.32x21 9-14 etc. =

Hi Gérard, what are your plans with Damy? Will it remain a private engine? Or do you intend to make it available? Rein

Hi Rein,

As you know very strong programs are already commercialised and in this context Damy will not add very much.
In addition I want two avoid at least two activities which does not look fun for me:
1) Debugging a problem due to configuration quite different from mine
2) Working on protecting my program

I prefer simply exchange freely with you, without any constraint.
FYI I am trying to build a new version based on huge memory now available. On my computer I have 32Gb and I am anticipating a version which need 64Gb of memory due to large evaluation tables.

BTW my current Damy version is not able to play a game! It allows only the analyse of positions.

[Rein Halbersma]

Yes Fabien, Damy finds the draw with both 7-12.
My main variation begins with 44...11-16 45.37-32 7-12 46.32x21 16x27 47.42-37 15-20 48.25x14 9x20 49.30-25 20-24 50.37-32 3-9 51.32x21 9-14 etc. =

Hi Gérard, what are your plans with Damy? Will it remain a private engine? Or do you intend to make it available? Rein

Hi Rein,

As you know very strong programs are already commercialised and in this context Damy will not add very much.
In addition I want two avoid at least two activities which does not look fun for me:
1) Debugging a problem due to configuration quite different from mine
2) Working on protecting my program

I prefer simply exchange freely with you, without any constraint.
FYI I am trying to build a new version based on huge memory now available. On my computer I have 32Gb and I am anticipating a version which need 64Gb of memory due to large evaluation tables.

BTW my current Damy version is not able to play a game! It allows only the analyse of positions.

Why not simply open source it?