RE: [computer-go] November KGS online results

[Aloril]

On Tue, 2006-11-07 at 10:20 -0500, House, Jason J. wrote:
 I believe there's an alternate to option #3.  Force the bot to play
 only one game at a time and respawn.  If leaving by timeout doesn't
 cause an exit from kgsGtp, it does at least cause a call to
 kgs-game_over which can cause the bot to exit. 

Bot does not exit from KGS, it just leaves game and starts waiting for
another. So next thing seen in the log file is start of the next game.
From kgsGTP viewpoint opponent escaped. Normally it would mean just that
but in tournament games clock keeps running and the bot whose kgsGTP got
bored loses on time.

 
 -Original Message-
 It seems that GoComputer was away for more than 5 minutes which makes
 opponent
 bot to leave game permanently even in tournament. 
 This means that there must be human in attendance to
 reconnect bot before it runs out of time :-(
 
 There are 3 alternative solutions to this problem:
 1) kgsGtp is fixed so that it does not leave tournament games even when
 opponent bot is absent for more than 5 minutes.
 
 2) If opponent crashes for more than 5 minutes or is not present for 5
 minutes at start of game and thus makes its opponent to leave game and
 lose on time: Crashing or initially absent opponent should forfeit
 game.
 
 3) Bot authors make some code that monitor kgsGtp.log-0.log file for
 Leaving game. -message and then deliberately exit bot. This would
 make
 bot disconnect from server and with rejoin script around calling kgsGtp
 bot would then reconnect and rejoin game. Alternatively human is
 following game and makes it reconnect.
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Aloril [EMAIL PROTECTED]
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Re: [computer-go] When is Pass the best move?

[Erik van der Werf]

Well at least we can be sure that for any two person game, if a position occurs 3 times, at least 2 will have the same player to move ;-)ErikOn 11/8/06, 
John Tromp [EMAIL PROTECTED] wrote:
The difference between PSK and SSK also comes up in chess.Witness these events taking place yesterday in the Tal Memorialchess festival in Moscow:Morozevich-Carlsen was interesting for a technical reason. White had
some advantages but Carlsen locked up the position in sound defence.There was some shuffling around with the pieces, and at one stageMagnus Carlsen approached the deputy arbiter Eduard Dubov to announcethat he intended to play the move 46...Qc7 and produce the same
position for a third time on the board. The chief arbiter GeurtGijssen was summoned and he started to check the game with Carlsen inthe analysis room. Gijssen also informed Morozevich about Carlsen'sclaim and invited him to join in the checking. But Morozevich refused.
Carlsen and Gijssen replayed the game and came to the conclusion thatindeed the final position had occurred for a third time. A draw wasgiven and both players signed the scoresheets. Afterwards Gijssen had
some doubts and again checked the game. It was then that he discoveredthat while the position had appeared three times on the board, it wasnot with the same player having the move. It means that the claim was
wrong and my decision was wrong as well, writes Gijssen in hisreport. He informed Carlsen about this and the young Norwegian wasimmediately ready to continue the game. The organizers tried to reachMorozevich, but he was nowhere to be found. In the end his coach
Kuzmin informed the organizers that, in his opinion, the draw shouldstand. And so it did.[http://www.chessbase.com/newsdetail.asp?newsid=3476]
This is not the first occurrance of such confusion:In the twentieth game of the 1972 Bobby Fischer-Boris Spassky match(the Match of the Century), Fischer claimed a draw because ofthreefold repetition. Spassky did not dispute it and the arbiter
agreed. After the draw had been agreed, it was pointed out that theposition had occurred after White's forty-eighth and fiftieth moves,and again after Black's fifty-fourth move (the final position). So the
claim was actually invalid because it was not the same player's turnto move in all three instances (Alexander 1972:137-38).[http://en.wikipedia.org/wiki/Threefold_repetition
]Perhaps positions are more easily recognized than situations...regards,-John___computer-go mailing list
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