Chess.com 2018 computer chess championship

[chessdev]

For any interested developer, here is the current Arena file: http://newman.chess.com/arena.debug

[George Tsavdaris]

Lc0 now has a training run using tablebase rescoring for training, rather soon we should be able to see improvements in endgame play from this.

And you still keep "0" in the name, what a joke...

Yes. They do that, to annoy you. And it's good.

[George Tsavdaris]

For any interested developer, here is the current Arena file: http://newman.chess.com/arena.debug

For an interested Chess player, that has already asked in vain around 15 times in the CCCC chat, where is the PGN of all the stage 1 games?

[Werewolf]

We may consider doing TB adjudication in the future. That said, our time controls are short, and I believe we've seen some interesting games and positions because we haven't adjudicated. I'm open to suggestions! Perhaps for TB draws... but for wins, let's see it played out!?

For tournaments which allow it I think you can retain the Lc0 badge even with tablebase support and even a book, provided Lc0 chose the moves and it wasn’t based on human / SF games.

For this tournament I’d go for whatever gives maximum strength.

[jp]

Lc0 now has a training run using tablebase rescoring for training, rather soon we should be able to see improvements in endgame play from this.

And you still keep "0" in the name, what a joke...

Yes. They do that, to annoy you. And it's good.

But that's a side experiment, right?? The main nets better continue to be "0".

[jp]

We may consider doing TB adjudication in the future. That said, our time controls are short, and I believe we've seen some interesting games and positions because we haven't adjudicated. I'm open to suggestions! Perhaps for TB draws... but for wins, let's see it played out!?

Only consider TB adjudication if Lc0 is not there e.g. Stage 3.
Yeah, let's see it played out win, draw or loss. It'll show where Lc0 is at in the endgame.

[ernest]

For an interested Chess player, that has already asked in vain around 15 times in the CCCC chat, where is the PGN of all the stage 1 games?

Indeed, https://newman.chess.com/games.pgn which previously gave the Stage 1 PGN,

now only gives current Stage 2 PGN.

[AndrewGrant]

For any interested developer, here is the current Arena file: http://newman.chess.com/arena.debug

I took a look and everything seems as expected to me.

Thanks for sharing with us, Erik

[Jesse Gersenson]

For an interested Chess player, that has already asked in vain around 15 times in the CCCC chat, where is the PGN of all the stage 1 games?

https://newman.chess.com/archive/ccc1/stage1/games.pgn

[Jesse Gersenson]

Here is a powershell script I wrote which attempts to solve the ponder/affinity problem of running two pondering engines, at the same time, on a windows machine. It aims to set each engine to defined CPUs.

Feedback very welcome:

Code: Select all

# windows powershell script which sets engine affinity of running engine processes
# author: Jesse
# version: 0.001

DO {
 # seconds script will sleep between loops
 $sleep = 0.5;

 # desired processoraffinity for engine 1
 # '15' sets process to run on CPU 0, 1, 2, 3
 $engine1affinity=15;

 # desired processoraffinity for engine 2
 # '240' sets process to run on CPU 4, 5, 6, 7
 $engine2affinity=240;

 # path of engine files, only exe files in this 
 # folder/subdirectory will be monitored
 $ENGINEPATH="C:\engines\";

 $counter=0;

 # loop over exe files in ENGINEPATH
 get-childitem -recurse -path $ENGINEPATH -filter *exe | 

 foreach-object {

	$engine = $_.name;
	$engine = $engine -replace '.exe','';
	$process = Get-Process $engine -ErrorAction SilentlyContinue;

	# if $engine is running...
	if ($process) {
	
		$counter= $counter + 1;
		echo "$engine is # $counter";

		if ($counter -eq 1){
			$engine1=get-process $engine | select-object processoraffinity;
			$engine1=$engine1 -replace '.*=','';
			$engine1=$engine1 -replace '}.*','';
			if ($engine1 -ne $engine1affinity){
				echo "updating affinity from $engine1 to $engine1affinity";
				$process.processoraffinity=$engine1affinity;
			}
		}
		if ($counter -eq 2){
			$engine2=get-process $engine | select-object processoraffinity;
			$engine2=$engine2 -replace '.*=','';
			$engine2=$engine2 -replace '}.*','';
			if ($engine2 -ne $engine2affinity){
				echo "updating affinity from $engine2 to $engine2affinity";
				$process.processoraffinity=$engine2affinity;
			}
		}
	}

	Remove-Variable process
 }
 sleep $sleep;
}while (1 -eq 1)