MultiGo is designed to view/edit Smart-Go format(SGF) go game file. It also supports other popular file format including *.BDX, *.NGF, *.GOS, *.GIB, *.UGF, *.GO. You can easily navigate through the game and branches, add/remove markers and comments, create or edit your own branches. You could use MultiGo to play with GNU Go, or even record/play go video.