Re: [gnugo-devel] Pass moves should be [tt] on SGF output

[Paul Pogonyshev]

DervishD wrote:

>     I know that the FF4 SGF standard says that a pass move can be
> specified as '[]' or '[tt]', but all SGF readers I've seen want the
> pass moves as [tt] instead of the GnuGO style of '[]' (empty move).
> What do you think about it?

I disagree.  As far as I remember, SGF FF[4] urges to use `[]' when
writing, but to be able to parse `[tt]' properly for backward
compatibility.  I may be wrong here, but it seems logical.  Go on
boards larger than 19x19 is very rare, but why make SGF incompatible
with it for just such minor issue?

And what exactly readers do you mean?  Not that I tried many, but I
have never had any problems with SGF FF[4] way of writing passes.

> IMHO this should be changed, as well as 
> the AP property, which the standard says that should be of the form
> 'simpletext':'simpletext', the semicolon between the application name
> and the version (this violates directly the standard).

You must be using an outdated GNU Go.  `AP' was fixed quite a while
ago.

Paul