How many pieces have already been fitted together?
A. There are 1,163 fragments altogether. Of these, fewer than 200 have been identified (and in some cases fitted together with other pieces). Another roughly 500 have not been identified, and the rest have no incised lines, which makes identification impossible, at least for a person. However, the lack of incised lines does not make fitting impossible. Such fitting could be based on 3D shape, marble veining, and other cues that only a computer can take advantage of.