>>48300633>>48300770>>48301070>>48301218Bisharp and Pawniard are not chess pieces, they are shogi pieces, but the localization team used chess names because it is more common for western audiences.
One of the main differences is that shogi consists of 8 different kinds of pieces and chess only 6 kinds.
They are based on a fuhyō (foot soldier) and a kinshō (Gold general) or a kakugyō (angler mover) as well as bandits wearing stolen samurai armors, very common during sengoku.
So being strict we don't have chess-based Pokemon, they are just localized names.
Pic related are a group of actors playing a human shogi game, but you can see the origin of both pokemon in this game.