キャスリング

noun, noun or participle which takes 'suru', intransitive verb

castling

Chess term for the special move where the king and a rook move simultaneously. Used as a noun and as a suru-verb (intransitive).

• キャスリングはキングとルークを同どう時じに動うごかす手てです。

  Castling is a move that moves the king and rook at the same time.

• 彼かれは早はやめにキャスリングして安あん全ぜんを確かく保