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MATCH sanity

Posted: Wed May 03, 2017 8:37 am
by Rebel
I have a tool that reports time-forfeits during a match by parsing the PGN. Are there other known irregularities in the PGN output of cutechess-cli and Arena? I want to add them.

Re: MATCH sanity

Posted: Wed May 03, 2017 8:55 am
by elcabesa
I search for illegal, stall and timeout in pgn file created by cutechess
I don't remember if the spell of the word is right

Re: MATCH sanity

Posted: Wed May 03, 2017 11:03 am
by sasachess
You can take a look to the utility ParserCutechess by Fabio Gobbato.
It parses the output of cutechess and creates the stats.
I have found some cases and helped Fabio to complete and testing the utility.

http://www.g-sei.org/wp-content/uploads ... echess.zip

Re: MATCH sanity

Posted: Wed May 03, 2017 11:08 am
by Ferdy
Rebel wrote:I have a tool that reports time-forfeits during a match by parsing the PGN. Are there other known irregularities in the PGN output of cutechess-cli and Arena? I want to add them.
In the pgn tag section from cutechess.

Code: Select all

void PgnGame::setResult(const Chess::Result& result)
{
	setTag("Result", result.toShortString());

	switch (result.type())
	{
	case Chess::Result::Adjudication:
		setTag("Termination", "adjudication");
		break;
	case Chess::Result::Timeout:
		setTag("Termination", "time forfeit");
		break;
	case Chess::Result::Disconnection:
		setTag("Termination", "abandoned");
		break;
	case Chess::Result::StalledConnection:
		setTag("Termination", "stalled connection");
		break;
	case Chess::Result::IllegalMove:
		setTag("Termination", "illegal move");
		break;
	case Chess::Result::NoResult:
		setTag("Termination", "unterminated");
		break;
	default:
		setTag("Termination", QString());
		break;
	}
}

Re: MATCH sanity

Posted: Wed May 03, 2017 2:16 pm
by hgm
In WinBoard this is a standard function. I just filter the game list on "on time", "illegal" or "false" in the result message.

Re: MATCH sanity

Posted: Wed May 03, 2017 7:43 pm
by pedrox
sasachess wrote:You can take a look to the utility ParserCutechess by Fabio Gobbato.
It parses the output of cutechess and creates the stats.
I have found some cases and helped Fabio to complete and testing the utility.

http://www.g-sei.org/wp-content/uploads ... echess.zip
Thank you.

The tool is good. On occasions, it happened to me that cutechess has not completed the pgn file (I lost test) even though all the games have been played. But if I have the log.txt file, with this tool I can get the information I need.

Re: MATCH sanity

Posted: Wed May 03, 2017 8:14 pm
by Sven
hgm wrote:In WinBoard this is a standard function. I just filter the game list on "on time", "illegal" or "false" in the result message.
I hope your filter ignores case since I have often seen messages like "False draw claim", "False win claim" or "False illegal move claim" with uppercase F.

Re: cutechess messages (@Ferdinand) - at least version 0.8.2 reports "White's connection stalled" so maybe filtering should only use the word "stalled" or simply "stall" without "connection" before or behind it.

Re: MATCH sanity

Posted: Thu May 04, 2017 6:45 am
by hgm
Sven Schüle wrote:I hope your filter ignores case since I have often seen messages like "False draw claim", "False win claim" or "False illegal move claim" with uppercase F.
No, it doesn't, and there would be little point to it. You can also filter on 'alse' or 'llegal' if you suspect mixed-case messages.

There is no escaping that you have to know how the messages look. There is no PGN standard for game termination, so every source might have done it different. Instead of "False draw claim" it could print "invalid result command". If you don't know what you are looking for, you will not be able to find it. That holds for hard-coded scripts just as much as for WinBoard's message filtering.

Re: MATCH sanity

Posted: Thu May 04, 2017 9:20 am
by Rebel
Ferdy wrote:
Rebel wrote:I have a tool that reports time-forfeits during a match by parsing the PGN. Are there other known irregularities in the PGN output of cutechess-cli and Arena? I want to add them.
In the pgn tag section from cutechess.

Code: Select all

void PgnGame::setResult(const Chess::Result& result)
{
	setTag("Result", result.toShortString());

	switch (result.type())
	{
	case Chess::Result::Adjudication:
		setTag("Termination", "adjudication");
		break;
	case Chess::Result::Timeout:
		setTag("Termination", "time forfeit");
		break;
	case Chess::Result::Disconnection:
		setTag("Termination", "abandoned");
		break;
	case Chess::Result::StalledConnection:
		setTag("Termination", "stalled connection");
		break;
	case Chess::Result::IllegalMove:
		setTag("Termination", "illegal move");
		break;
	case Chess::Result::NoResult:
		setTag("Termination", "unterminated");
		break;
	default:
		setTag("Termination", QString());
		break;
	}
}
That was helpful. I now have it all automatic during a match. Still (so now and then) I am having a problem with Cute. It happens in draw cases (draw repetitions, 50 move rules, stalemate and insufficient material). There are hundreds of them but occasionally Cute gives a [Termination=abandoned] and disconnects. No idea why that is, no such problems with other interfaces. I am using 0.8.2.

Re: MATCH sanity

Posted: Thu May 04, 2017 9:58 am
by Ferdy
hgm wrote:There is no PGN standard for game termination, so every source might have done it different.
Not exactly sure what do you mean by that. But in pgn spec, termination tag is mentioned.

Code: Select all

9.8.1: Tag: Termination

This takes a string that describes the reason for the conclusion of the game.
While the Result tag gives the result of the game, it does not provide any
extra information and so the Termination tag is defined for this purpose.

Strings that may appear as Termination tag values:

* "abandoned": abandoned game.

* "adjudication": result due to third party adjudication process.

* "death": losing player called to greater things, one hopes.

* "emergency": game concluded due to unforeseen circumstances.

* "normal": game terminated in a normal fashion.

* "rules infraction": administrative forfeit due to losing player's failure to
observe either the Laws of Chess or the event regulations.

* "time forfeit": loss due to losing player's failure to meet time control
requirements.

* "unterminated": game not terminated.
Ref:
https://www.chessclub.com/user/help/PGN-spec