be changed for a superior chess or checker piece(verb.competition)
source: wordnet30
change a pawn for a better piece by advancing it to the eighth row, or change a checker piece for a more valuable piece by moving it to the row closest to your opponent(verb.competition)
source: wordnet30
To contribute to the growth, enlargement, or prosperity of (any process or thing that is in course); to forward; to further; to encourage; to advance; to excite; as, to promote learning; to promote disorder; to promote a business venture.(verb)
source: webster1913
To urge on or incite another, as to strife; also, to inform against a person.(verb)