irontwig
Veteran
I like this system
irotwig: I don't think, that many people know how to write gamma...
Doesn't really matter as I think that the most useful application of this system is for team BLD. Numbering just the L cases as BL=1, BR=2, FL=3 and FR=4 is perhaps better, so you have {+, I, -, 1, 2, 3, 4, .}.