The Unofficial World Championships Of Computer Programs In International Draughts Blitz 2020

[Krzysztof Grzelak]

I invite you to tomorrow's tournament "The Unofficial World Championships Of Computer Programs In International Draughts Blitz 2020". Start at 9:00 CET.

Krzysztof

[BertTuyt]

Krzysztof, thanks for organizing.
And success with the tournament.

Bert

[Krzysztof Grzelak]

I cordially invite you to the tournament " The Unofficial World Championships Of Computer Programs In International Draughts Blitz 2020 ". Live tournament on the site https://www.youtube.com/watch?v=vSGTcsx ... e=youtu.be

[Krzysztof Grzelak]

Sorry for the trouble with the live broadcast.The tournament can be viewed on the site https://www.youtube.com/watch?v=yfv2FFO ... e=youtu.be

[Krzysztof Grzelak]

I cordially invite you to the tournament " The Unofficial World Championships Of Computer Programs In International Draughts Blitz 2020 ". Live tournament on the https://www.youtube.com/watch?v=XcYFMe9 ... e=youtu.be

[Krzysztof Grzelak]

The first main round of the tournament " The Unofficial World Championships Of Computer Programs In International Drafts Blitz 2020 " has ended.

Main round one table.

[BertTuyt]

Krzystof, thanks for organizing, im enjoying it alot.
Only negative , the current results of Damage, which seem to be weird compared with the 158 games match results against Scan and Kingsrow.
But the positive news, we will all learn and benefit, so room for improvement on our side.

Bert

[Krzysztof Grzelak]

Several valuable advice I can give at the program Damage.

1. the program cannot reply every 3 seconds
2. you need to do a book debuts
3.the problem is with the kings

I found all defeats to be games where the opponent made the king. The program has improved a lot Dragon. It concerns the end of the game.

[BertTuyt]

Krzystof, thanks for your suggestions, and observations.
However, I'm afraid i have also a hidden bug.

Maybe others can confirm but in the game against Sjende Blyn in a 7 against 7, Damage (black) played at move 45. .... 1-6, whereas all programs will recognize that the position is a dead draw (example 24-29).

Basically according to the analysis the whole game was balanced.

I replayed the position several times (with the version also used in the tournament), and the 1-6 was never played, so most likely something with the hash-table.

But testing, and bug fixing is part of the job, so i don't complain, as it is not the programs fault, but mine.
So no excuses, others did better

Bert

[Jelle Wiersma]

Hi Bert, 45. .... 1-6 is indeed wrong, when played properly it would have been a draw.

[BertTuyt]

I also analyzed Scan - Damage, here the evaluation score during the game was also flat (around zero).
I initially thought that the beautiful Scan combination (ending with 38. 26x10) was defining the outcome.
But in fact the next move from Damage was completely wrong 38. ..... 28-32 should have been 16-21, and also here an easy draw for computers.

Normally with these positions and multi-core and a 7P DB, the program knows the outcome around move 40.

Maybe Fabien/Jelle can comment, if I'm wrong?
I expect that all programs "see" 16-21 (also with limited time).

Bert

[Krzysztof Grzelak]

Bert, please play a game with Kingsrow 1.62 (if you have time). Time - 1 minutes, threads - 16, database - DTW . Then you will see an interesting result.

[BertTuyt]

I don't have 16-core machine like you, so please help me what is the interesting result .

For my understanding, how do you set the time for damage, with the Damage GUI?
With levels normal game?

Bert

[Krzysztof Grzelak]

Yes with "normal game". Some time ago I played such a match (Kingsrow) - out of curiosity. The Damage lost the match very high.

[BertTuyt]

I played a 1 min game (manual) against KingsRow, and the result was a draw....

Bert