Assertion: chess player's piece | /r/HasProperty | developed
Facets:
Source sentences:
text: There is no clear line between the opening and the middlegame, but typically the middlegame will start when most pieces have been developed.
text: The middlegame is the part of the game after most pieces have been developed.
text: Bilingual pieces with both Japanese characters and English captions have been developed as have pieces with animal cartoons.
text: Traditionally, the opening ends when minor pieces (knights and bishops) have been developed, and players have castled.
text: Chess opening – first phase of the game, where pieces are developed before the main battle begins.
text: The middlegame is the part of the game when most pieces have been developed.