Noun
major piece (plural major pieces)
(chess) A queen or a rook.
Synonym: heavy piece
Accepting, in 1916, Howells wrote his first major piece, the Piano Quartet in A minor, inspired by the magnificent view of the Malverns ; he dedicated it to "the hill at Chosen ( Churchdown ) and Ivor Gurney who knows it". Source: Internet
A king and a rook is sufficient material to checkmate an opposing lone king, although it's a little harder than checkmating with king and queen; thus the rook's distinction as a major piece above the knight and bishop. Source: Internet
In Supergirl's latest episode, a major piece of the show's history was destroyed in the fallout of Brainy's decision to work with Lex Luthor. Source: Internet
Coyne continues to be a strong presence at the top of the Patriots rotation and he'll be a major piece moving in the late season stretch. Source: Internet
The SAO catalogue contains this major piece of information not in Draper, the proper motion of the stars, so it is often used when that fact is of importance. Source: Internet
This was Cranmer's first major piece of responsibility outside the Church. Source: Internet