That makes sense but then why not Dissidia Chess?
If you wanted to fit all of the main characters, two different characters would have to play the rooks, etc.
It'd be messy and confusing. Something like this, maybe:
White Pieces:
King = Cosmos
Queen = Shantotto
Bishops = Onion Knight / Squall
Knights = Terra / Zidane
Rooks = Firion / Cloud
Pawns = Warrior of Light / Cecil / Bartz / Tidus (2 pawns each)
Black Pieces:
King = Chaos
Queen = Gabranth
Bishops = Cloud of Darkness / Ultimecia
Knights = Kefka / Kuja
Rooks = The Emperor / Sephiroth
Pawns = Garland / Golbez / Exdeath / Jecht (2 pawns each)
If I were a figurine maker or something, I think I'd actually attempt to do something like this
