Editing Smart Game Format (section)

== Format Versions ==
The first version of SGF, FF[1], was conceived by Anders Kierulf in 1987. It is Appendix A in his Ph.D. thesis.<ref>{{cite web|url=https://britgo.org/tech/sgfspec.html |title=Definition of the Smart Game Format|publisher=[[British Go Association]]|access-date=2 June 2023}}</ref> FF[3] was written by Martin Müller in 1993. The current version of the SGF is FF[4] by Arno Hollosi, and is supported by most current SGF readers. FF[2] was never made public. The format has been published under the [[Open Content License]]. Current development status (2016) is "not active".

FF[4] is outdated, but has not been replaced by something more recent. For a description of current usage and some recommendations, see.<ref>{{cite web|url=http://homepages.cwi.nl/~aeb/go/misc/sgf.html|title=The SGF Format}}</ref>