| format | 12-round Swiss | |
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| board size | 19×19 | |
| rules | Chinese | |
| komi | 7½ | |
| time | 14 minutes plus 10/30s |
The first round started at 08:00 UTC.
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In the table above, 0 is a loss 1 is a win J is jigo left superscript is the player's colour right superscript is the round in which the game was played a subscript shows how the result was determined: R for resignation T for time F for forfeit a number for the points difference after counting. All the 0s, 1s and Js are links to the game record. Black won 16 games and White won 20. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
We welcomed a new release of Fuego to this event, playing as 'mpfuego'.
In round 1, mpfuego lost by a large margin to Orego12. Even an old version of Fuego would have expected to beat Orego, so there was clearly something wrong. Mpfuego lost all its games in the tournament, because it was achieving many fewer playouts than it should have been. Its operator later explained "We are using the Message Passing Interface (MPI) library. If an MPI process stops without cleaning up its messages, it will cause troubles for the following processes. I think that is what happened. Normally that should not happen, but it may have happened with the settings we used for the tournament."
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| NiceGo19N vs mpfuego |
| At end of "clean-up" |
In round 2, mpfuego lost to NiceGo19N. After the players both
passed, they disgreed about the status of some stones, and entered
the "clean-up phase". After NiceGo19N had played three stones and
mpfuego had passed once and played one stone, they each passed again,
ending the clean-up phase in the position shown to the right. This
was scored as a win to NiceGo19N; this would have been the result if
they had both finished the clean-up phase correctly.
My guess is that mpfuego does not
handle the game end correctly, and NiceGo19N was happy to have the
game end in a position it knew would be counted as a win for it. But
I urge the programmers of both to make them handle the clean-up phase
correctly. I have seen many won games lost by bots which failed to do
the clean-up correctly.
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| Orego12 vs NiceGo19N |
| Moves 1-15 |
In round 3 the game between Orego12 and NiceGo19N started as shown to the left. This looked odd to me, games betweeen dan-rated players do not start like this. Orego12 then tried to save the stones it had lost in a ladder.
Also in round 3, mpfuego's game is listed as a "loss by forfeit". This happened because its operator logged in to its account to resign for it, causing the server to score it as a loss by forfeit.
In round 4 mpfuego lost on time (in a lost position). It left itself with two seconds for its final move in the Canadian overtime period, and then failed to make this final move in time. It repeated this behaviour in several subsequent games.
The round 7 game between mpfuego and NiceGo19N ended in a similar way to their round 3 game. Both passed when the game was clearly not over, and played only a few moves in the clean-up phase before they both passed again with many regions of the board undecided. Again the game was scored as a win to NiceGo19N, which would also have won if the game had been finished properly.
Players receive points for the 2013 Annual KGS Bot Championship as follows:
| Crazy Stone | 8 |
| Aya | 5 |
| nomitan | 3 |
| oakfoam | 2 |
| Orego | 1 |