Once you have created an account on GoBase.org it will still take
a few days before you will be able to use all facilities of the
website. Most notably, the repository, downloading SGF files and
printing will take a few days to be activated.
Ricard Vilà wrote his thesis on fighting semeai.
As a side course he did research on evaluating eye space.
Read all about it (including a test suite):
Semeai-01ES and STS-RV.