The blue square is an item used in The Eyes of Glouphrie and The Path of Glouphrie. It has a value of 20 in Oaknock's and Yewnock's machine, as calculated by multiplying the value of the shape's colour and the number of sides the shapes have:
The item's name was changed from "A blue square" to "Blue square".
1m ago - YoshiFan12
2m ago - Crabby