User blog comment:B214/Volume 22 spoilers/@comment-29963364-20161115070642

Hold on!

The rules of the World Rating Game Tournament states that


 * beings usually worth "more than" one Piece will be considered one Piece.


 * Gods, or God-Class beings will be worth every Piece they represent (2 Bishops/Rooks/Knights, 8 Pawns).

These rules are why Kuroka, who is worth two Bishop Pieces, is considered one Bishop Piece.

So why the hell are Bova Tannin, and Bikou each considered 3 Pawn Pieces? Neither of them are Gods, or God-Class. So even if they would normally be worth 3, they should each be considered one Piece for the Tournament.