square bracket, angle bracket, bracket out, shelf, bench, swing shelf, shelfwork, buttress, shelve, toolshelf, more...

unbracket, unpair, unmatch, unenclose, uncover

parentheses, square brackets, curly brackets, angle brackets, more...

lower, higher, top, same, upper, first, marginal, right, left, bottom, second

quarterfinal groups,   wall attachment,   tournament round,   brace key