[gnugo-devel] Jago and GNU Go

[Arend Bayer]

Rene Grothmann posted a link on rgg to a 9-stone game he played against
GNU Go 3.2 (and that he won with 115 pts).
(http://www.rene-grothmann.de/dgoz/Rene-GnuGo32.sgf)

I wanted to look at that game a little, but a couple of issues turned
up.

* GNU Go and Jago didn't agree on the translation GMP-board coordinates
  ->.sgf-coordinates. Rene has fixed this in jago now. This means we
  might have to mirror the board when looking at bug reports from games
  played via jago.

* The game contained some duplicate moves, causing GNU Go to crash when
  loading the .sgf-file (we already got a similar bug report and should of
  course fix that). Rene looked at it and it turned out
  that GNU Go submitted these moves twice via GMP (Jago had sent an OK
  in between). I have attached a GMP log file generated by jago of a
  9x9-match where GNU Go also sends a few moves twice, the first time at
  lines 37/40.  Does anyone more familiar with GMP have an idea where to
  start looking for the problem?

* Also strange is that GNU Go needed 2h on Rene's computer to play the
  game (using Trevor's VC binary), while the replay an my slightly
  slower computer needed less than one hour (both using this binary
  under Windows and under Linux).

Arend