Freestyle Blokus is a variant where one player first chooses the starting pieces for blue and red, and then the other player decides who will play as blue/red, and who will play as yellow/green. This style of game eliminates (at least mostly) the advantage of going first, and so a “match” typically consists of only one game, instead of two games.
Each year there is a Freestyle championship held between January and March. In 2012 the finalists were infamouswhiteknight and guiduf. infamouswhiteknight chose the pieces for blue/red, and guiduf chose to play as yellow and green. The game was incredibly close, with guiduf winning by a single point, and it was widely considered to be an example of an exceptionally well played and tight game.
I have included a .blksgf of the game, with some comments, and a few variations to explore some other possible moves.
The game file is here (link: http://dl.dropbox.com/u/27727822/FS2012/FS2012.blksgf).